Release that Witch

377. Chapter 377 under low temperature

    The boiler heater system is not a complicated thing. The essence is to boil the hot water, then transport the heat to the room through the pipe, and then spread out by the radiator. The carrier of thermal energy can be water or water vapor. Roland uses the latter because the upper limit of steam temperature is higher and it is more convenient to circulate. As long as the boiler is burned continuously, the steam pressure generated will automatically fill the small high temperature water droplets in every corner of the pipe, even the pump does not need.

    Of course, steam heating is not without its shortcomings. The pipeline is always in a high-pressure environment. If the interface is not strong, it will easily leak or even explode. The high-pressure steam of two or three Baidus is only open to the skin, so the installation quality is higher. Anna’s black wire soldering guarantees the strength of the interface, plus Soraya’s coating, which is undoubtedly minimized.

    At the same time, Roland also installed an automatic pressure reducing valve on the boiler. The mechanical principle is the same as that of the centrifugal controller on the Steam engine. When the pressure in the furnace is too high, the high-speed rotating flywheel will pull up the valve and decompress the exhaust.

    The last piece of insurance was located at the boiler’s connection to the two main heating pipes. He asked Anna to engrave a number of grooves around the copper tube to reduce its strength, similar to a can. Even if the pressure valve does not open properly, the explosion will occur in the boiler room without harming the people in the room.

    When the heating system was running, the scene in the castle was completely changed.

    The heavy and heavy winter clothes disappeared, and the witches changed into a single coat in the fall. Looking at the colorful girls talking and laughing in front of them, Roland felt that his work motivation had risen by five percentage points.

    Of course, these facilities are all used to enjoy, or to build, an auxiliary device to create a better working environment.

    The next thing to do is to relate to the future of the Western Region.

    That is to achieve the artificial synthesis of ammonia, reduce the dependence on the saltpeter, so that the production of chemical explosives is brought to a new level, so that it can meet the requirements of automatic shooting of the weapon.

    If you can achieve this goal before the end of the winter, it will undoubtedly put a heavy bargaining chip on the planned spring offensive.

    Roland called Cam Schuire and Agatha to the office.

    “For several days, how are you working together?”He asked with a smile. One person is the chief alchemist of Border Town’s. Apart from the incomparable love of alchemy, he almost does not care about the feelings and opinions of others. One person is from the witch Kingdom four hundred years ago. He is proud of being a member of the Pioneer Society, the highest research institution. Both of them are straight, and they are like a gunpowder bucket that is blown up. Roland is also often worried that they will be in dispute, but whether it is nitrification gunpowder or synthetic ammonia, they must cooperate with each other, so they still have to ask for situation first. If they don’t, they can only mediate.

    “Very good,” Cam’s first sentence made Roland a little surprised. “Miss Agatha’s ability has helped tremendously in chemical testing. Now I have found a stable synthesis temperature for nitrification* glycerol, and there is no problem with laboratory preparation. Is further testing the possibility of industrial manufacturing law…It can be said that there is no ice cup, and this is impossible. Hey, because the work is too busy, I have not notified you. ”He paused, “By the way, if you want to ask about this, can you let me go back to the lab now? I still have a lot to do.”

    UhIs that true? Roland looked to Agatha, who nodded.

    “Mr. Cam’s knowledge is indeed different from ordinary people, especially the recognition of elements, and is quite similar to the Pioneer Society. Our cooperation is currently very enjoyable. If you put it in Taqila, he will definitely be absorbed by the Federation. ”

    Is it straightforward to be more straightforward with straight sons? It seems that I am worried about one, and why is the attitude of the chief alchemist on the witch better than myself? It’s sad…After Roland groaned in his heart, he cleared his throat. “In this case, I am relieved. Calling you, there is a new study to be handed over to you. ”

    When I heard the word research, Cam immediately came to the spirit. “You please say.”

    “Before I said that there are many different kinds of gases in the air, and now is the time to use them.”Roland narrates his thoughts. “According to «Elementary Chemistry», oxygen and nitrogen account for 99% of the air. Now I need to separate the two gases for chemical production.”

    Cam thought for a moment and replied, “You mean, use their different characteristics…For example, the boiling point and the Melting Point are different to separate? ”

    “Yes,” Roland nodded with approval. “The air is condensed and then warmed up. The boiling point of nitrogen is lower than that of oxygen, so it will be fractionated from the liquid first. Since this temperature is much lower than the freezing point, the current Conventional means are difficult to do, so it must be done with the power of Agatha.”

    “Put the air into a liquid,” Cam grinned with a beard. “It sounds very interesting.”

    “If you lower the temperature further, they can even turn into solids, like ice cubes,” Roland smiled. This is definitely a scene that contemporary alchemists have never imagined. The seemingly imaginary gas can be held in the hand – provided that it is well protected against freezing.

    Agatha wondered, “I also read some of the book, but when I freeze the air, I don’t see it solidify into a variety of gases.”

    “Because they don’t stratify when they are mixed together, it’s hard to discern them with the naked eye,” Roland explains. “The first thing that was ruled out was carbon dioxide, which has the highest freezing point, but the air content is extremely low, so You won’t even notice the fine particles that solidify it. Next is oxygen and nitrogen, which blend perfectly together to give a light blue color that looks like a pure substance if not separated. In fact, liquid nitrogen should be colorless. ”

    “What should we do?”

    “First prepare the fractionation vessel,” the prince tilted his mouth. “This is a big project.”

    There is no doubt that it is not enough to rely on Agatha alone. The glass is prone to chipping during repeated temperature changes, so containers containing liquid air can only be used in all-steel housings. This is not difficult for Anna. The fully enclosed outer casing will not allow the change of liquid air to be observed when the temperature rises. Therefore, it is necessary to use Silvy’s Magic Eye to observe the inside through the container and let Agatha record the liquid nitrogen. The specific component consumed by magic power during boiling can obtain the temperature parameters for stable production.

    This preparation lasted for three days.

    When the container was manufactured, Roland visited the chemical laboratory to instruct the small town to conduct the first oxygen-nitrogen separation test.

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