Chronicles of The Hardships of Komachi in The Sengoku Era

The siege net led by Honshoji and Takeda was being completed, but there was no wartime specific tension in Oda territory that should have been sieged.

It was reported that the Oda family was not aware of Takeda's betrayal and that the net of siege was becoming narrower.

The appearance of hearing the report and his proximity chuckle at the fact that a measure has been taken. In future generations, Shimochi (Tsuma), known as "Osaka's Left and Right Admiral," and so on, grumbled that he had "won" to hear the report.

"In Oda, where there are weak soldiers, there can be no one in a hundred, such as beating Takeda, who sounds its name in heaven. Last time, Ahju of Asakura pulled his leg and allowed Oda to escape, but this time he is an unbeaten Takeda. There can't be a single thing in the world like leaking it."

This perception was not only true of the main wishful temple, but also of the people and generals Yoshiaki, who listed anti-Oda.

As a matter of fact, Takeda has never been invaded by another country in over thirty years, and on the contrary, he has won by attacking another country, bringing it to the draw at worst.

Conversely, Oda's Ozhang soldier was famous for his weakness, and Takeda's Kofi soldier deserved five Ozhang soldiers.

"Let's leave it to Takeda this time. It is not a good idea to disrupt Takeda's footsteps. Moving on request from Takeda, we shall be thorough in the compilation of the people and the work behind them."

"Ha!"

With the obvious knowledge, the neighbors work on what needs to be done.

All they had on their heads was how they would stand around after Takeda unified the heavens, and they never even spent their brains preparing for unforeseen events or anything else.

But they were alarmed.

No matter how weak a soldier is, if he is driven to a dead place, he may strip his fangs against predators and even scratch their throats, as indicated by "Bite the Cramped Cat".

There is yet another miscalculation. Taizhang soldiers are never weak soldiers or anything like that. It may have been once, but it's definitely not now.

Originally Ozhang had a lot of fertile land and it was easy to get daily food.

Meanwhile, in a steep mountainous area, Kofi is also asked for the strength to outperform the paste mouth. In other words, because they are trained in survival competition, the underlying local forces are different.

The difference in strength around each soldier attributed to this was partly responsible for gaining recognition for the weak soldier's tail and the enhanced Takeda. But this is only if we compare emergency reserves, which take ordinary people out to the battlefield.

Basic abilities can be enhanced by stacking workouts so that even ordinary people may acquire physical abilities comparable to athletes depending on their training.

But in the warring age of conscripting peasants and making them light, the idea of training them, for example, is tantamount to nothing.

Combat training was also provided only for a limited number of general candidates, such as children's subordination and relatives of ministers.

Nobunaga defeated this common sense. Against the backdrop of a wealth of financial resources, we separated soldiers and farmers, so that they could hold a standing army.

And Shizuko pushed it a step further. In order to reduce the rate of wear and tear among recruits, he advised them to set up large soldier training centers and conduct thorough recruit training.

As a result, weak soldiers and taunted Tai Zhang soldiers changed.

Basic training, which was extremely harsh, had become fearful among the recruits who had completed it: "A week of Buddha, three months of Shura, six months of hell, three months of hope for death".

However, those who dive through Shizuko's soldier training center can enjoy the benefits of a harsh experience.

First of all, trainees do not have trouble with the contractor. Because the warlords who become their employers know how harsh that training is.

There were even those who took their fathers away from their paternity, and threw their children into the training center.

Secondly, we have a basic answer, in that if we have not dyed our hands in crime, we will have no identity whatsoever.

In the Warring States and Edo periods, when the first-born inheritance was common sense, treatment other than that of the man who succeeded the governor was inhuman in a tangible way.

If anything happens to a man, he will be kept in one of the rooms of the house and called a "room dwelling".

Aside from setting up his own house, he was not allowed to marry his wife, and was treated like a dwelling to gaze at the complexion of his parents.

Make a replacement, and if the man inherits the housekeeper, the room dwelling will not change. You will live your life just in case of the Lord while being fed by the man who became the Lord.

Hence I hated the life of a breeder, and many since my second son, who goes out for duty and adoption. One spare would be good, and I can't even be a 'room dweller' after the three men.

Nevertheless, responsibility attaches to the position of the man.

Instead of receiving all the wealth from their parents, their own families were originally responsible for earning the support of their brothers and sisters, searching for brothers' places of service and adoption, and allowing them to bring money if their sisters were to be dowry.

Worldwide, Japan was a better category for having the option of calling it an adopted son or a servant.

The idea of leaving for public service and adoption in the world, especially in Europe, was only in some parts of Germany, and it was basically common for parents to keep and kill them, or to give them only a few checks and be banished.

Therefore, it was easy for the housekeeper to argue within him, and instead of mourning his death when his parents died, he even blessed him.

Those who merely inherited their property were charged with responsibilities towards their brothers and sisters, as were Japan.

There are other paths to becoming priests and serving kings as knights, but privileges were monopolized by the powerful and greatly influenced the extent to which the clan to which they belonged had strength.

Turning back, the final advantage is that meals and places of residence are guaranteed during the training period. Even if he falls off without fitness as a soldier, there exists a fixed period of time until he is judged.

In the meantime, you get a warm bed for three meals. However, since the training imposed is extremely intense, it is often inappropriate to volunteer just for sleeping meals.

General Yoshiaki was also plotting in the shadows when the anti-Oda led Hondo Temple, Asakura and Asai were in the dark.

The sleigh didn't fit in and we had a subtle friendship, but on the surface we hung out with Nobunaga, and behind us we were preparing for a confrontation.

Two years after the collapse of the first Oda siege net in one thousand five hundred and seventy years, the second Oda siege net was steadily and quietly sneaking under Nobunaga's feet.

In late June, Shizuko heads for the Chita Peninsula for a screw ship commissioning. There was no problem with the Nagara River because of the commissioning, but the screw ship is designed with the idea of being active in the outer ocean in mind.

Therefore, it makes sense to test drive at sea. Conversely, the river did not need to be held by a screw ship, but sufficiently bribed with the current Japanese vessel.

"Well, let's get started."

Shizuko, given full powers of inspection by Nobunaga, signals the start of commissioning.

There are two types of screw ships available for commissioning this time. It is of two types: single-passenger and two-passenger.

One passenger manipulates everything with only one passenger, as its name indicates.

It is like a modern motorboat with integrated steering devices and screws, and all steering and output adjustments need to be done by themselves.

The two passengers are separated, and the steerer and the output regulator operate the ship in cooperation with each other.

The reason why we don't do more than three passengers is because the device is simple and non-full-time passengers get in the way. In the first place, it requires rigorous training for manoeuvring, so there is no way to allocate surplus personnel.

The basic structure of the ship is common to both types. It is a mechanism for transmitting the rotation of the sterling engine, an external combustion engine, by means of a crank mechanism and rotating the resin screw.

The difference between each type is in its engine output. Instead of the need to have a dedicated pilot available, the device can be larged, and the output is greatly enhanced as it is larged.

It was the gearbox and torque converter that caused the development period to be prolonged, even though the systems and parts on board were common.

To operate the screw ship efficiently, it is necessary to change the rotational speed and rotational force of the screw dynamically and quickly.

A gearbox and torque converter, which is a gearbox, are needed to achieve this.

It can be said about the vehicle in general, but speed requires a strong force (torque) at the latest to move from a stop state to a start.

On the other hand, with the speed on board, if the rpm is low, that becomes resistance, so even small forces need to rotate at high speeds.

A gearbox was needed to switch this state, and a torque converter was desired to make that switch smooth.

However, the development of torque converters is extremely difficult, and there is still little development. For this reason, the gear switching is operated using a clutch method.

The gear change required force due to the absence of a double force mechanism due to hydraulic pressure and required specialist personnel.

"Please be new from type a"

Due to the long name of the type, Shizuko assigned one type to type A and two types to type B and the development code name. It was adopted by the name as it is and continues to this day.

"Type A, start the exam!

Signal clerk's footsteps slap the drum. In response, the Type A ship moved out one by one. Even though I was training in seating and simulators, it was because it was the first time I had touched a real machine, or because the ship was not moving.

Some of them have taken the trouble to change gears and have barely advanced from the starting position. Still, acceleration began to ride with time.

"Then start type b."

"Type B, start the exam!

When type (a) reaches the cruise speed, the two-passenger type (b) receives the test. The speed increases smoothly due to the presence of dedicated personnel in the boulder.

"Is it going well?

The tests were carried out smoothly with type (a) and type (b). Shizuko was optimistic that she would be able to put it into action soon. However, the technical test will fall into the pitfalls of the accessory.

"... hmm? The siren? Is something wrong?

When the test was about half way through, a siren suddenly sounded announcing the anomaly.

Immediately the transmission rushes and reports the reason for the anomaly to Shizuko. That was why neither Shizuko nor the Nine Ghost Navy, which was involved in the development, imagined it.

"Did you stop the power?

"Ha. The engine suddenly stopped while driving at high speed. Technicians are currently identifying the cause."

During the travel test with the gear rotating at high speeds, both type A and type B were hit by problems causing an est. It doesn't happen once or twice either, it happens again and again. Shizuko also understands that there is an anomaly with the boulder.

(wake up est? Were there any deficiencies in gear development? No, that can't be right. I checked the gearbox blueprints, but the amateur didn't have a mechanism that seemed unusual either. Besides, it works fine in a low speed state, I don't think there will be any anomalies due to the difference in gear ratio than the gear is switching)

Since the developer is disassembling a single gearbox and investigating it, the policy will be decided upon. If something goes wrong with the gearbox, I don't know how much time it will take to refurbish it.

There is pressing air. Guys, I won't put it in my mouth, but I've been looking forward to hearing from you. It was not until a moment later that the bitter atmosphere became foggy.

"... you mean it wasn't enough rpm and it was ENST?

When she heard the report, Shizuko lowered her chest. The reason for repeating the end is that the deformation of the screw propeller is greater than expected and the water resistance is greater, so the rpm drops due to the lack of torque in the high-speed gear and the specified rpm cannot be maintained.

The gearbox was disassembled and investigated for any other cause, but there were no faulty parts on all parts, and there were no problems with the coupling.

Conduct an interview immediately. Shizuko, who had completed the interview a short time before the sun set, decided that it would be tomorrow to reach a conclusion and dissolved that day.

The next day, after confirming the results of the interview, the policy for the future will be discussed.

"The usefulness of screw ships could be demonstrated in this test. Both type (a) and type (b) can only be tested at low speed rotation, but the results of the verification show that the speed can be exceeded with" (kai) ". You can solve the problem this time when rotating at high speeds by adjusting the gear ratio to allow room for torque width. With the above, we conclude that the screw ship has entered the practical phase"

Shizuko declares with the gathering. As a result of interviews and confirmation of the mechanism's investigation report, the deformation of the screw propeller can only alter the material, which, when made into metal, is heavy and difficult to process.

Since there are no problems with the structure of the gearbox, it was concluded that a solution would be sought by pinching the gear of intermediate speed between the low-speed gear and the high-speed gear.

The mechanism itself did not suffer from a major malfunction, so they all bow their chests. Screw propellers are the mechanism needed to get out into the ocean.

Therefore, expectations from Nobunaga are great. After several years of development, we were all terrified of what punishment would be imposed if we exposed ourselves to unusual results.

All the test items during high-speed rotation were then excluded and only the tests during low-speed rotation were resumed, but no fatal problems occurred, although minor defects and erroneous manipulations due to personnel proficiency occurred.

In order to report the test results of the commissioning to Nobunaga, Shizuko compiles the test results. Be the first to state the conclusions as well as the business report for Nobunaga.

It would be more efficient to use the current propulsion device ("Ro") if we were to limit ourselves to small scale operations in rivers.

However, since the efficiency of a large ship is reduced as soon as it reaches its size and a certain speed, it was concluded that if a large ship is operated with a small number of people to achieve mass transport, the armament will be increased to the prime mover (engine) type screw ship.

It should be noted that both screw propellers have the same principle of pushing water to gain propulsion. However, screw propellers can cover a wide range from leisure boats to transport tankers, whereas screw propellers are highly suited for low-speed small ships.

"There are few advantages in current river transport. Significant gains can be made from achieving mass and high-speed transport by sea………"

Shizuko will include the answers to the questions that Nobunaga will come up with in the test results as far as possible. Anyway, he throws questions like a storm if he has any doubt at all.

Reports to Nobunaga tend to be distant because they are physically and mentally tiring.

Several technicians also submitted their own reports that they could do so, but since the story came out that the report was also accompanied by a bundle of paper filled with questions after it had been pushed back, and furthermore the response was prompted by arrows as yet, it has become an implicit understanding for Shizuko to write.

So technicians surprisingly don't get their heads up on Shizuko.

A technician says. Nobunaga's question should not simply be spoken, but he must assemble and speak a theory that convinces him.

Even if the person perfectly masters the technology, it is another talent to be able to explain it so that others can understand it.

"Um, I wonder if it's something like this. I kind of feel like I've been in a middle management position lately, but you should blame it on me."

Shizuko puts the finished thick report in a wooden document case for transport. After that, the small users will carry out the processing until Nobunaga delivers it to them.

Shizuko stretches her back and relaxes her body when she hands the paperwork case to Xiao and requests that it be shipped to Nobunaga.

"Phew, next time, check the improved sterling engine and blast furnace. Uncle Satisfied's got a lot going on over there, so I can do it straight up to exam day."

"If you are comfortable, please process this document."

At the same time as placing his hand on the shoulder of Shizuko, who was stretching out his back, Cai, who stood directly beside him at some point, had given him a mountain-like document.

Even if it is called a blast furnace in one bite, there is a two-stage operation process of "steel making" and "steel making" that refines steel made of iron into steel.

"Iron" is essentially the task of alternating cokes and iron ore from an elongated, neat top and melting iron ore with heat in the furnace.

The coke put into the blast furnace is combusted by hot air blown in from the bottom of the furnace. Depending on the blast furnace, fine powdered coal or the like may be put in as a storage reducing agent.

The burned coke produces carbon monoxide and hydrogen, which serve as reducing gases. This reducing gas becomes an elevated airflow in the blast furnace to dissolve the iron ore, while removing (reducing) the impurities contained in the iron ore.

In other words, Cokes has two roles: making the temperature of dissolving iron ore in the furnace, and reducing agents that remove impurities found in iron ore.

The molten iron (melted iron) from which the impurities have been removed by the reducing gas flows straight to the bottom of the furnace according to gravity.

It then comes into contact with the coke in combustion at the bottom of the furnace and reacts with the carbon generated by the coke during heat generation, which becomes iron containing a few percent of the carbon and accumulates in the water reservoir at the bottom of the furnace.

At this time, the impurities contained in the iron ore accumulate in layers on top of the melt. This is called a slug and is discharged from a blast furnace apart from molten iron. Slugs are reused as by-products during iron production.

The prototype of a blast furnace capable of removing oxygen and other impurities contained in iron ore and carrying out the process up to dissolution in one piece was born in the fourteenth to fifth centuries in the Rhine tributaries of Germany.

In the early days, I used charcoal for heat sources and reducing agents by moving the lid on the water wheel to increase the air flow rate.

It was in the early eighteenth century that cokes were used as fuel, so many trees were harvested until then, resulting in the destruction of forests.

Although there are other reasons, such as the opening of fields, iron production by blast furnaces is alleged to have spurred the decline of forests in Europe.

About three hundred years after the birth of modern blast furnaces, the reason blast furnaces still retain an advantage over modern scientific plants is that they can be melted together while removing impurities in simple installations.

Blast furnaces also have a long life span unlike other chemical plants. A furnace that is exposed to a hot environment 24 hours a day, but can continue to operate simply by replacing the bricks in the furnace every 10 years or so.

In a blast furnace that operates continuously for 24 hours and 365 days, longevity is a requirement.

In the case of other chemical plants, the blast furnace also maintains an advantage in this respect, as it will be rebuilt depending on the damaged area.

"I'm worried about you."

Shizuko, who is worried and has a painful chest, speaks without hiding her anxiety. Instead of commissioning the blast furnace at once, a binding test is scheduled to take place at the end after several stand-alone tests have been carried out.

Today is the commissioning date of the blower, which is an important installation in the blast furnace, and its powered sterling engine.

Even though there is room in the schedule, if a problem occurs in the commissioning, the later test date will slip in and the combined test date of the blast furnace, the last test step, will be delayed.

Unlike before, Shizuko didn't have much room in her mind either, as the whole thing would be delayed critical path if she were late on one of her schedules.

"If the Admiral is anxious, he can't calm down. Stay put."

Satisfy Shizuko who softens. Contrary to Shizuko, he had the usual sedentary calm look. No one understands the inside, but at least Satisfaction seems more calm.

"That's not even true. Oh, yeah. Have you finished your sintering test?

"... that's fine without me. Plus, we'll start with the iron ore crushing, so we're still far from getting results."

Iron ore is not the first size, so if it is loaded straight into the blast furnace, it causes eye congestion.

To prevent that, the process of grinding and powdering iron ore once and mixing coke and a dozen percent limestone, similarly powdered, and baking and unifying its shape, is called sintering.

No sintering, but it's the same with coal coke and biocoke that shapes. After completing these preparations, iron ore and cokes are finally put into the furnace.

"I'd like to do an early demonstration test to see how valuable biocoke is."

It has the advantage that the temperature in the furnace can be raised higher than coal coke alone due to the combustion effect of the pyrolysis gas, although it does not become a reducing agent, resulting in a shorter time to dissolve.

However, what percentage can be substituted, and all this has to do is repeat the empirical tests. Fortunately, unlike modern times, it is not difficult to manufacture experimental blast furnaces.

"Let's not just do that. With Biocokes, you can also use it as a heat source for sterling engines. You might not want something of higher quality than German, where working gas can generate 1kw of electricity with air."

"With all the helium gas, Germany is doing it in the air, so I think it's amazing."

"For that matter, we're making it easier. Producing helium gas in this setting is not a hassle."

With a maximum output of 1kw class, the sterling engine with working gas in the air is beginning to be put into practical use. Regardless, there is no way I can give a number that stays the same as the spec, and the output will drop somewhat.

It is in that engines, designed some two hundred years ago, are now receiving particular attention in military submarines in that they are quieter than diesel engines and reactors and are made to operate with the waste heat they emit.

In fact, the modern Japanese Sauru submarine is equipped with a sterling engine called the AIP (Non-Atmospheric Dependent) propulsion engine.

However, the reason why the Sterling engine was installed on the Yeru submarine was because there were no efficient fuel cells and there was no good way to store hydrogen, so the installation of the fuel cells was dropped off in case of an accident.

"Once the blast furnace is complete, it will finally be taken to the production of steel. Industrial products are harder than iron because steel is a must. After that, parts are first made by hand... hob boards, etc."

A hob board is a type of tooth cutting board used to cut gears. Tooth cutting is the rotation of a special cutting tool called a hob, which cuts teeth before gear processing (also called a gear blank).

Gear has long been an important part, but it was only in the second half of the nineteenth century that industrial production using hob boards became possible. Until then, the gear was manufactured by hand.

"It's manual now. If you want a lot of uniform-sized gear, you really need a hob board."

"Because gear is an important part. Hob boards for brass sharpening are successful with iron hobs, but I still need iron gear. The wooden gear... sounds more like a thread saw than a hob board."

While it is possible to manufacture brass gears with iron hobs, iron gears will require steel hobs. Wooden is better cut with a thread saw than using a hob board because of its different strength.

"Now that I have a lot of manual work, I put a heavy burden on the gearbox when it came to mass production. When the blast furnace is finished, I just need you to make the same steel as the iron hob, so it's easier said than done."

(That first hand job is the hardest thing to do... well, if Shizuko doesn't have a hard time with it, okay?)

Pioneers in every industry always struggle. However, having a hob board enables mass production of gear, which increases the efficiency of different digits than craftsmen make by hand, so if you want to go ahead, it is an essential machine tool.

"Machine tools are more troublesome to unify specifications than they are to make. Well, is it time to get ready for the sterling engine?

Shizuko, who coughed, forcefully changes the subject, forcing abominable memories out of her head when she was standardizing and standardizing hob boards, etc.

Shizuko standardized and standardized everything used in the technical district so that the humans that followed did not have trouble.

This will enable the next generation to acquire technology efficiently. At the end of the day, I'll tell you what I learned from my five senses and my body.

But every day, I'm physically and mentally tired of writing up paperwork for my desk from morning to evening.

Even though it was important, for Shizuko, it was also a tiresome experience that the work of her hand was close to the first time.

In the end, writing standardization and standardization documents was a repetition of distracting work with craftsmen and meetings, reflecting feedback and meeting again.

And because there is not only one but several of these hardships, Shizuko's hard work is immeasurable. Though I thought she was important, I couldn't help but have the dilemma that I don't want to anymore.

"My lord, we just reported that we can have the exam in the next quarter of an hour (about thirty minutes)."

When she was slightly distracted, Xuanlang, who had heard Shizuko's questions, did not have to tell her, but went to various places to get confirmation, and reported the results to Shizuko.

Shizuko squeezes her face as she thinks she is happy to have a good man.

"Great. Then let's move when it's time"

After four and a half minutes, Shizuko and the others move to the test site.

By then, the celebrations and talents that had gone somewhere had also returned. Shizuko was satisfied with the reason that Nagako's clothes were slightly stained with blood, but she did not ask any more.

In fact, when I found him hiding everywhere, I was just interrogating him while sandbagging him.

Upon arrival at the test site, the sterling engine cylinder had already been warmed.

This time, the sterling engine used in the test is a two-piston engine.

Four main components are the heating and cooling parts connected to each of the two pistons and the regenerator that temporarily stores the working fluid.

Also known as operating gas is the working fluid. External combustion engines need to convert thermal energy obtained from the outside into kinetic energy, something that the substance used in this conversion is called working fluid.

In sterling engines, compressed helium gas and hydrogen gas are utilized when the basics are atmospheric air and high performance.

This time it's a sterling engine that uses air gas, not helium gas or hydrogen gas.

First, the heated air moves the piston and cylinder on the hot side of the crank mechanism, and then the hot air moves to the cooling unit to move the piston and cylinder on the cooling side.

Later, by repeatedly heating and cooling the working fluid, the reciprocating motion of the pistons located on the hot side and the cooling side respectively is converted to the rotating motion of the crank via the connecting rod.

The rotational motion of the crank is communicated to the gearbox through the output axis.

Whether the gearbox lowers the speed and increases the force (torque), increases the speed and decreases the force, or uses it separately depending on the application. I need a high speed and low torque gearbox because of the blower this time.

Set the gearbox gear combination for the blower and finally transmit the rotational motion to the wingwheel on the gearbox output axis to feed hot air into the blast furnace.

It is the hot air furnace that will be installed in the blast furnace that can be equipped with such a large amount of equipment. The temperature in the blast furnace is increased by the hot air furnace, which dramatically increases the amount of discharge.

The higher the temperature at which the air is to be blown, the better, but it will not be possible to blow more than a thousand degrees of hot air like modern times.

Still, we can produce a few tons of iron a day, so in warring times, it's broken productivity.

Blast furnaces have the disadvantage of high performance but cannot use sand and iron.

This is because when titanium in sand iron burns in a blast furnace, it becomes titanium oxide, which inhibits the flow of melted iron. For this reason, only iron ore with little titanium can be used in blast furnaces.

But iron ore produces less in Japan, and we have to rely on overseas producers. The closest producer will be China, but China's iron ore is less cost effective because of its low iron content.

Thus, iron ore was imported from India, Vietnam, Thailand and several countries.

Imports of iron ore and coal into Japan during the Warring States were also possible because there were Jesuits who had great rights in the Nanban trade. Of course, I needed a silver stick to match it.

"Silver flew for you. Well, if the blast furnace succeeds, they'll have a profit too, so I guess that means investing ahead."

At first glance, it's a Jesuit that has nothing to do with commerce, but it properly benefits from the Nanban trade.

The way India and Southeast Asian countries trade with Europe or Japan is held by the Jesuits, the Catholic Church behind them.

So whenever a ship leaves in a deal, the merchant must pay them. Well put, donations, or worse yet, pre-charges for using trade routes.

Furthermore, they had certain interests in ports dotted in Asia and in Macau, where there was the largest slave market in Asia.

In other words, the more the Nanban trade Shizuko makes, the more opportunities the Jesuits will have to collect donations from merchants.

I miss a lot of money just sitting around, so I'll be generous if it's an investment to make the deal thrive.

In fact, because Shizuko increased her trade because of more exports, and as a result, the Jesuit finances rose to her right shoulder.

"With that in mind, it's time for the Sterling Engine to work."

"Oops. Now concentrate in front of me."

Shizuko, who returns from the abyss of thought with pointers of contentment, drives the extra clutter out of her head. Turning his gaze toward the sterling engine, several people were turning the handle on the output axis.

Sterling engines don't work just by warming up the working fluid. It is necessary to move the piston to create a flow of working fluid.

And if the working fluid does not reach a constant temperature difference, the sterling engine will not operate as an external combustion engine.

"It's gonna take a while."

Put your hands on your chin and watch the craftsmen. Slightly under pressure, the craftsmen were turning the steering wheel whispering and discussing something.

And when I turned the handle about thirty times, the sterling engine finally started.

"Whoa."

The chief can raise his voice of admiration. Celebrations and talents weren't the only ones to raise their voices, but they nailed it to the sterling engine. When the output reaches the required number slightly, the blower starts via the gearbox.

The wind, which was slow at first, but soon became powerful enough to blow the earth and dust off the ground. The exam that actually brings hot air is another day, but as far as the current situation is concerned, I was confident that there would be no problems in particular.

And her certainty was right. The test of the hot air furnace, which increases the temperature of the blast furnace, was successful without major problems until the final test.

Commissioning on the blast furnace was carried out, but all went well without major defects. Little glitches piled up and my exam schedule slacked for a few days, but it was to a rewindable extent.

The blast furnace test was completed until the final test, when there appeared to be no more problematic problems than the screw ship's problems.

Shizuko, who gave words of labor to those involved, had a grand launch and submitted all the reports to Nobunaga, had enjoyed the rest of the time.

"Phew, I wondered what would happen for a while"

"Good work, Shizuko"

Satisfaction speaks the words of labor to Shizuko, who is resting by slamming firmly against her desk in her room.

Once the blast furnace is tested, there is nothing in particular to do until the Odd Round Initial Formation.

He is not here because he has special training in the Spartan style from his grandfather, but rumors of the wind show him quite a bit.

Shizuko sent Yale in her heart, wanting her to fulfill her role as a gentleman of the Oda family.

"Uncle Satisfied is tired too. Thanks for all the help I can't get around."

Shizuko also speaks hard words to contentment.

"Never mind. It's what I like to do."

attitude that it was nothing, but there was a small grin in his mouth. Stinko, who stuck to his desk again, thinks about the future of the blast furnace as he grinds his head.

If I could make iron, I would like to go to make steel next, but Shizuko had a reason why I couldn't. It is that the rolling furnace for making steel has the same dilemma as the refractory brick.

In other words, we need steel for the rolling furnace that makes the steel. Precisely because the struts that support the roller furnace and the lateral bars to move them, if not steel, will not be strong enough to crack.

Shizuko has to come up with something for this dilemma. Once the iron made of blast furnace is molded, it is beaten like a Japanese knife and transformed into steel containing the required amount of carbon.

However, it is not possible to mold the molten lid intact. It's a mixture of phosphorus and sulfur that makes it brittle, even for steel. To prevent this, it is necessary to carry out a process called a preliminary melting process.

Simply put, the task is to remove the impurities contained in the melt. Basically do three things: desulfurize, dephosphate, and desulfurize. The materials put in for this purpose are lime, iron oxide, fluorite, etc.

Add these to the melt and stir. At this time, no oxygen is fed in. Because when oxygen is fed in, the melt becomes hot and the result is a dull dephosphorus reaction.

Lime and iron oxide are easy to obtain, and fluorite is not difficult to produce in Japan (such as the Heiyan mine in Gifu prefecture).

Iron, which has undergone preliminary melting treatment, is refined with Japanese knife technology and turned into steel. We can finally produce a large quantity of steel by building a turnstile with it.

If a higher quality steel is to be sought, it is necessary to perform a secondary refining process to adjust the concentration of the components contained in the steel after refining in a rotary furnace.

Secondary refining is an important step in the final process of steelmaking and in determining the quality of steel.

In modern times, four processes - refining in blast furnaces, preliminary treatment of melting, refining in rolling furnaces and secondary refining - have become standard processes for manufacturing luxury steel.

"Steel made by refining iron made in blast furnaces."

The blast furnace test was completed without any problems. Slugs came out pretty good, but it's impossible to get less slugs from the start.

It is a miracle to dissolve iron without problems and refine steel even though it is not a furnace.

Cokes furnaces that change coal to cokes and slugs exiting blast furnaces are also reused as by-products.

Various by-products are available, especially for the cokes furnace. If the combustion exhaust gas is removed from the outside, it will cause pollution. Therefore, the exhaust gas needs to be refined and made clean.

The structure of the cokes furnace is basically a furnace with alternating combustion chambers and carburetors made of brick walls.

Steaming coal where heat in the combustion chamber is in the carbide chamber. The coke made is cooled so that it can be used in a blast furnace because of the high temperature.

Because water is used for cooling, the quality is reduced, inert gases (gases that are less likely to undergo chemical reactions such as nitrogen) are used to cool in a place called a dry fire extinguishing system.

Some systems use high-temperature gases generated at this time to generate steam that turns turbines for electricity generation.

When the coal is steamed, the volatility is gassed and released. Since the gas contains active ingredients such as crude light oils, sulphuric acid and ammonia, it is dangerous to release it out as it is.

First cool the hot gas with ammonia water. Thin ammonia water is the best way to efficiently remove hydrogen sulphide and chlorine gases contained in coke furnace gases.

Later, the drama is refined from the gas removed to tar and crude light oils, sulphuric acid and ammonia, and the remaining gas is reused as fuel for the coke furnace.

Note that sulfuric acid and ammonia can be used to produce ammonium sulfate (also known as sulfuran) in nitrogen fertilizers, or they can be used as a material to produce ammonium nitrate (also known as soap).

Sulphur cheap is important as a fertilizer, but nitro cheap has various other uses besides fertilizer.

Nitrogen reacts heat absorption when mixed with water, so if purity is deliberately mixed with dropped nitro and water is frozen, portable refrigerant can be produced.

However, Ni 'an will explode if handled incorrectly, causing great damage to the surrounding area. For this reason, Shizuko tried to limit Nitrogen, which had made it as pure as possible, to only handling it as a portable refrigerant.

"That sounds good. Is this going to take about six months to get the stem of the furnace?

"Well. Even if it works in small quantities, there are good cases where mass production will not succeed."

"We need to increase production there a little bit and see if there's a problem."

The blast furnace test was a success. But that doesn't mean it's done. Rather, it starts here.

Technology advances every day. Iron quality is low in blast furnaces today. Over the next decades, if bad, it will take more than a hundred years to produce high quality iron and steel while carefully researching.

With the quality of iron and steel, now wooden ships will eventually turn to iron as well. If it turns into iron, we can build bigger ships now, and logistics will change dramatically.

However, high-quality steel can also produce powerful artillery. It is also possible to manufacture explosives by applying blast furnace and transfer furnace techniques.

But technology is an instrument to be interpreted, and whether it is used for peace or whether it becomes dangerous in the history of mankind depends on the will of the user.

If I were to give an example, it would be the Harbour Bosch method.

Until the birth of the Harbour Bosch Act, mankind has been plagued by poverty due to the Marsus limits (the idea that if we do not restrain ourselves to the population that was in the productive power of the land, we will always lack the resources to live in an equal number of rows).

However, many chemical fertilizers were produced when the Harbour Bosch method allowed the synthesis of ammonia, resulting in a dramatic increase in crop yields and other living resources.

By this, for the first time, mankind exceeded the 'limits of Marsus' and the population grew so dramatically that it did not see an example in history.

It is said that if, in modern times, ammonia synthesis under the Harbour Bosch method is no longer possible, approximately 3 billion people will starve to death.

The Harbour Bosch method, which greatly contributed to the prosperity of mankind, but the synthesis of ammonia simultaneously allowed the mass production of nitric acid as a raw material for explosives.

In modern times, industrial processes are carried out by the Ostwalt method (also known as the ammonia oxidation method), but ammonia plays an important role at this time.

What is the Ostwalt method? Ammonia is turned into a mixture of gases with oxygen, and one rhodium of the impurities contained in platinum and platinum ore is catalyzed and heated to about 10%.

Then nitric oxide occurs, and this bonds with oxygen in the air and turns into nitrogen dioxide. This nitrogen dioxide is reacted with warm water to produce nitric acid and nitric oxide.

The nitric oxide generated in the last process is again utilized, becoming nitrogen dioxide again, nitric acid and nitric oxide.

Using the Ostwalt method in this way, ammonia, air (pure oxygen produces more) and hot water can be used to manufacture explosives.

Since nitric acid was not affected by the situation in other countries and mass production was possible in their own countries, the war that had ended would be prolonged if resources were exhausted until now.

For this reason, the Harbour Bosch method was described as "making fertilizers out of the air in normal times and gunpowder in times of war".

"For now, it's natural to improve the quality, use it privately for a while to verify, and later I wonder if military use is good."

So I didn't have a problem with it, but Satisfaction nodded at Shizuko's words.