"The fire is on..."

    Before the announcer''s words were heard, Renault felt the machine vibrate again. At the same time, a magical feeling told him that behind the thick metal, the fierce combustion was going on, and the hot flame also filled the whole narrow space.

    If it is an engine on the earth, the ignited oil-gas mixture will become high-temperature and high-pressure gas, pushing the piston to move. The force on the piston will be transmitted to the crankshaft through the connecting rod mechanism, and finally work on the outside world.

    In this process, a large number of high-temperature exhaust gases are inevitably discharged into the air, and a lot of heat energy is wasted.

    Because of this, there is always an efficiency limit for a hot engine such as an engine. No matter what EGR Technology or exhaust turbocharging technology, the improvement brought by it is also quite limited.

    But in the alien world, with the help of Rune black technology, the expanding high-temperature gas will enter a huge Rune cylinder with a diameter of nearly 60 cm and a length of more than 1.5 meters. Then, the magical change happened.

    If you have perspective eyes and infrared vision, you will see a fantastic scene.

    The misty blue light and the flame interweave to form a colorful light mass. Then the infrared intensity radiated by the gas begins to decrease sharply. After passing through the rune cylinder, the original temperature of the mixed gas exceeding 1400 degrees is reduced to more than 60 degrees.

    Heat, absorbed by the rune cylinder!

    To be exact, it was absorbed by the large Rune Group [thermal power]!

    What is the exhaust temperature of the earth diesel engine?

    Over 400 degrees!

    Full load work, the temperature even close to 600 degrees!

    The difference is almost 10 times, which shows how high the thermal efficiency of thermal magic power is.

    So, what does the absorbed heat become?

    Can magic work?

    Of course not!

    The existence and production mechanism of magic power involves high-dimensional space. People from other worlds have studied it for thousands of years, but they have not made clear what is going on.

    No one knows how to turn other energy into magic power.

    In other words, magic energy can be transformed into other energy, such as heat energy, kinetic energy, etc., but vice versa.

    The machine in front of Renault, of course, can''t do this, but with the help of the first law of thermodynamics, the rune magicians have found a new form of energy.

    Renault called it: thermomagic energy.

    This is also the real reason why this machine is named "hot magic engine".

    Like magic energy, thermal magic energy also exists in another dimension, but it has a very strange feature - it can drive the rune Group [rotation] to generate kinetic energy.

    However, it has a small disadvantage, that is, it does not exist for a long time. Even if there is no external interference, it will slowly disperse into other dimensions of space.

    So the energy transfer path of thermal magic engine is as follows: chemical energy → thermal energy → thermal magic energy → kinetic energy.

    The conversion efficiency of each step is very high. The total efficiency is more than 80%, and there is still room for further improvement. I believe that with these diligent Rune magicians, the thermal efficiency will exceed 85%, or even 90%.

    In addition, thermal magic engine has another advantage - low mechanical loss.

    In the diesel engine on earth, the thrust received by the piston needs to be transmitted to the connecting rod first, then to the crankshaft, and finally to do external work. There is more or less a small amount of mechanical loss in each step.

    That''s not all. Don''t forget the camshaft.

    Part of the mechanical energy will be transmitted to the timing gear through a chain, so as to drive the camshaft. In the process of rotation, the camshaft will constantly lift the intake valve and exhaust valve, which will cause mechanical loss.

    Even if the transmission efficiency of each step is as high as 99%, the total is not a small number.

    But the thermal magic engine is different, its mechanical structure is extremely simple, the only motion mechanism has only one transmission shaft, the mechanical loss is unbelievably low.

    This also brings another advantage: simple structure means high reliability and low failure rate.

    At this time, the excited voice of the announcer appeared as scheduled, "ladies and gentlemen, we have detected a strong energy flow on the magic silver wire, which is more than ten times higher than a few days ago

    "My God, this is incredible..."

    This sentence seems to detonate something, more and more noisy voices appear, these voices have one thing in common - extremely excited.

    "The large-scale magic motive specially used for ships has also moved..."

    "The large gearbox is working..."

    "The propeller turns..."

    Accompanied by these sounds are the "click" of the gears, and the whistling of the huge blades of the propeller across the air.

    Renault can''t help but look at the position of the propeller. The huge iron block is also the part he rolled out with his own eyes. It has a diameter of nearly 3 meters and a total weight of more than 1.2 tons. It''s a big guy.The smart Seth immediately noticed the Lord''s action. He turned his head and looked at a rune Magician: "Alvin, you go to replace the Lord and continue to drive the rune array..."

    Then he bowed slightly to Renault: "Sir, the next step is the fluid test of the propeller..."

    Renault nodded and walked forward first. The others immediately followed him closely and surrounded Renault.

    It has to be said that people''s adaptability is astonishingly high. If they are surrounded like this on earth, Renault will feel uncomfortable.

    However, it was less than two months since he became the Lord of the tidal islands. He has fully adapted to such a life and is used to being the biggest focus of the crowd forever.

    After passing the 1-meter-high marine magic engine and large gearbox, Renault saw the propeller, which was fixed on a thick transmission shaft, and the huge blades kept rotating, causing gusts of strong wind around. Many magicians had to hold their hats to avoid being blown away.

    The speed of the propeller is more than 5 seconds, which sounds very fast, but for such a huge iron lump, the speed is quite fast.

    In addition, its working environment is not air, it will be more dense sea water, the resistance is very large, too fast speed will lead to greater force on the propeller, metal is more prone to fatigue.

    Just below the propeller, a huge pool about 20 meters long has been dug out. The surface of the pool is covered with a layer of gray cement. At the moment, there is only a shallow layer of sea water in the pool.

    Seth yelled, "fill the pool with water..."

    Standing at the end of the pool, the two Rune magicians immediately pressed their right hands on the magic machine, and the two pumps connected to the magic machine instantly started up. The turbulent sea water flowed from the thick pipe into the pool, and the clattering sound of water resounded through the test workshop.

    The power of the magic machine is more than 100 kW, and the speed of water injection is quite fast. In a few minutes, the pool will be filled with more than half.

    Seth yelled again: "shift the transmission to neutral Lower the propeller platform into the water and start the test.... "

    The rune magician standing beside the gearbox immediately presses his palm on the rune disc on the surface of the gearbox. After inputting a mental force, a small built-in magic machine turns and separates a pair of gears that mesh with each other.

    This gearbox is also a product of Renault''s opening and coupling. With the current manufacturing capacity of Rune Research Institute, it is impossible to make such a huge gearbox.

    It has a total of four gears, in addition to neutral, the other three are low speed, medium speed, high speed.

    When the gearbox is adjusted to neutral, the speed of the propeller slows down immediately. At the same time, a "buzz" is also heard, and the platform carrying the propeller begins to slowly descend.

    More than ten seconds later, the propeller blade has stopped contacting the water surface and gradually sank into it.

    "Shift to first gear..."

    Seth''s voice echoed in the open workshop.

    The propeller moved slightly, and the wide blades stirred the water in the pool constantly. A visible water stream appeared in the pool and hit the opposite pool wall, sputtering 4 or 5 high waves.

    There was a roar of cheers.

    As long as you are not an idiot, you will naturally understand how strong the current produced by the propeller is.

    It also shows how powerful the thermal engine is.

    At this time, Seth suddenly stroked his chest with his right hand and saluted Renault with great respect.

    "Congratulations, great sir, you have changed the world once again. I think the name of Odin will last forever..."