Seth continued to explain as he walked along the long pipe.

    "As for the three kinds of combustibles, the first one is light oil. Its calorific value is relatively low, only about 40% higher than that of wood, but it burns very fast and releases a lot of heat in a short period of time..."

    "We think that it can be developed into a weapon. You once mentioned" incendiary bomb ". We think light oil is very suitable for making incendiary bomb, but the research institute has too much work, so there is no spare person to study incendiary bomb..."

    "Look, sir, this is light oil..."

    In front of a metal barrel next to a still, Seth gently lifted the lid and pointed to the inside of the barrel.

    Renault immediately smelled a strange smell, just like the smell of roasted meat mixed with rotten eggs, but the smell was mild and acceptable.

    The liquid in the barrel is light yellow, clear and bright, and the surface is glossy like grease.

    Seeing Renault frowning slightly, Seth said with a bitter smile: "Lord, we have thought of many ways to repeatedly adjust the distillation temperature and time, and even used the" activated carbon filtration device ", which can only reduce the odor to the current level."

    Renault gently shook his head: "don''t care too much about my reaction just now. In my opinion, you have done a good job!"

    Hearing this, Seth immediately bowed: "all this comes from your great idea. Without you, I''m afraid no one would have thought of using black oil in this way. Your wisdom makes the world marvel..."

    During this period of time, Renault has heard a hundred times more flattery than in his previous life, and his resistance to flattery has greatly increased. At this time, when he heard Seth''s unbridled flattery, he just chuckled: "OK, let''s see the next product."

    After walking dozens of meters along the pipe, Seth opened another metal bucket.

    "Lord, this is the fuel obtained in the second round of distillation. Its calorific value is 30% higher than that of light oil. It burns slowly and has a higher ignition point."

    "You asked to use ''Diesel'' to name one of the fuels. After testing, we found that it is most in line with the characteristics of diesel you said. It has low energy consumption and more stable combustion. If you agree, its name will be diesel..."

    Renault looked into the barrel and saw that the liquid in it was brown, and there was almost no peculiar smell. There was only a faint smell of sea. People with a weak sense of smell could not even smell it. He nodded dissatisfied: "call it diesel!"

    Seeing that the LORD was in a good mood, Seth asked cautiously, "Lord, is there any special origin for the name" diesel oil "

    Renault said with a smile: "I hope it can replace firewood in the future, so that civilians don''t have to work hard to cut wood when cooking or heating..."

    Seton nodded convincingly and exclaimed, "you are so kind."

    But Renault knew clearly that this guy''s face was full of admiration. He didn''t believe Renault''s words at all.

    The reason is very simple. Can the poor civilians in the territory afford diesel?

    They haven''t even had enough to eat for a few days. How can they have extra money to buy diesel?

    I don''t want to buy even if I can afford it. There are so many trees on the island that I don''t need money to cut them down. I only spend money to buy them when I have a brain hole!

    Only high-income groups like Seth, or a few wealthy businessmen, are willing to spend money on diesel, and their purpose of buying diesel is not just to consume.

    It also contains class, ostentation and other metaphysical things. If the things I use are the same as clay legs, will they not degenerate to the same class as them?

    But Renault didn''t care, because he didn''t believe it. He said it just for a casual reason.

    The real reason is love!

    On earth, Renault''s major is called "thermal energy and power engineering". To be exact, it is the direction of the engine. To be more precise, it is the diesel engine in the engine.

    He can be sure that in the alien world, due to the existence of magic power, I''m afraid there will be no diesel engine any more. He''s really ashamed of his major and Mr. diesel.

    There is no diesel engine, there can be diesel!

    This is the real reason for the name.

    Yes, this is the feeling of an engineering dog!

    But can this be said to others?

    No, so he can only talk nonsense.

    In each other''s "wishful thinking", the two went to another slightly larger distillation kettle, which was actually equipped with two liquid outlet pipes. Obviously, the production of this kind of fuel was the largest.

    Seth opened the end of a barrel and began to introduce the last product: "Lord, this is heavy oil. Its calorific value is the highest, more than twice that of light oil, but it burns the slowest and has the highest ignition point..."

    Heavy oil is not as good as light oil and diesel oil in appearance. Its color is black and shiny. It always gives people a dirty feeling. In fact, heavy oil is quite pure. After several distillation and filtration processes, it contains almost no impurities.

    Its odor is much lighter than light oil. It smells like burnt wood, but not bad.Renault moves his fingers, and a small mass of heavy oil flies from the metal barrel with a long silk thread. It is obvious that the heavy oil has great viscosity and poor fluidity.

    Before and after the oil mass flew to the Reynolds surface, it suddenly spontaneously ignited and turned into a bright fireball. It was only 2 minutes after the blazing flame lit up that the oil mass burned out.

    Sure enough, as Seth said, heavy oil is quite resistant to burning.

    As soon as the flame went out, Seth said, "we have tested it and found that it is the most suitable fuel for the heat devil engine..."

    At this time, Renault interjected and asked: "when the thermal magic engine uses heavy oil, how much is the thermal efficiency?"

    Seth''s face showed a trace of embarrassment: "just over 10%, higher than the direct use of black oil..."

    He slightly lowered his head: "Lord, I''m very sorry. It took us a month to increase the thermal efficiency by 5%, which seriously delayed the progress of magic ship..."

    At this point, a trace of determination suddenly appeared in his eyes: "however, we will work harder to strive for an early date..."

    Renault raised his hand to interrupt Seth''s words, glanced at the deep black circles on Seth''s face, and said seriously: "don''t apologize, I''m very satisfied with your work..."

    As the most concerned project of thermomagic engine, Renault is very aware of its progress and the great efforts made by Rune Research Institute.

    In order to verify the rune group, the rune magicians have designed and manufactured thousands of different models, with an average of more than 30 groups tested every day.

    As far as he knows, it takes at least two hours for a magician to engrave a rune disc, and it takes two hours to complete an experiment.

    It''s not polite to say that these magicians are working very hard. Many people work more than 16 hours a day, and more people have been working for a month without a day off.

    How can we "work harder" when the terrible working hours are close to the limit of human body?

    No matter how hard you try, you''ll have to stop eating and sleeping, but what''s the difference between this and suicide?

    For this kind of employees with astonishing high engagement, who can bear to demand more?

    Renault patted Seth on the shoulder and sighed: "I think the key to solving the problem of thermal efficiency lies with me..."

    In fact, he knows very well that the fundamental reason why the thermal magic engine has not progressed is that the rune array of the first law of thermodynamics is missing the most important other half.

    It''s thermal conversion!

    As the name suggests, it can convert heat energy directly into thrust.

    Yes, direct conversion, no media required!

    The principle of thermal magic engine is exactly the same as it!

    Think of here, Renault''s eyes become deep up, he needs the soul, the soul of a powerful monster.

    In an instant, a picture appeared in his mind.

    A picture of countless tentacles emerging from the dark bottom of the sea, completely covering the water

    Mr. troll, I hope you won''t let me down