Just forty seconds later, Liu Shenhong fiddled with the flywheel, which was quickly rotated under the impetus of the engine, and then he pointed to the USB port that came out, and pouted at Qian Longzhou, "Plug it in!" It's ready to be charged. ”

Qian Longzhou was dumbfounded, "Is this a steam engine?" ”

Liu Shenhong shook his head indifferently, "No, this is a heat engine, not a steam engine, and I haven't made a boiler here." ”

"I'm convinced of you, I used to say that technology nerds changed the world, and I didn't believe it, but now it's an eye-opener." Qian Longzhou connected the mobile power supply, and immediately saw the number beating and charging on it. "I used to watch Yi Xiaochuan in "Mythology" and build a generator with some gold wires, and I thought it was amazing, and you are even more incredible."

"Hehe," Liu Shenhong said with a smile, "This thing belongs to the ancestors, but I didn't invent it." ”

Qian Longzhou looked at this engine intently and asked curiously, "How much power does this thing have?" ”

"It's not a lot of power, this is just really boring to make and play by yourself, otherwise you won't be able to watch any of those love action movies on your phone." In this world, I have no wife and can't find a girlfriend, and I have to supervise a large group of big men working on the construction site every day, which is just too miserable. ”

Qian Longzhou's mind was not on this at all, this little thing looked very simple, and he needed to keep adding firewood to the heating cylinder, but this thing gave him a feeling of opening up a new world.

"Is it possible for this to be promoted on a large scale?"

"It's not impossible, but there's so much that needs to be improved. The cylinder needs special equipment for boring, the piston also needs to be precision machined, and the materials required are also very strict, and the air tightness is also very important. ”

"I mean, if this thing is used to pull a train or something, will it work?" Qian Longzhou pointed to the palm-sized engine.

Liu Shenhong looked at him with slanted eyes, "Do you want to build a toy train?" ”

", of course it's a big train, used to pull goods or something." Qian Longzhou was amused.

Liu Shenhong looked down at the engine, and then at Qian Longzhou. "That's thousands of these little engines."

"I'll go!" Qian Longzhou looked like he hated iron but not steel, "I mean, is it okay to enlarge this engine?" ”

"Oh! I thought you meant to take this to pull the train...... If the amplification is not enough, the power is not enough, this is the heat engine, which is generated by the expansion of air by heating and then pushing the piston movement of the piston in the main cylinder and the cryogenic cylinder, and the cylinder closed by the hot gas engine is filled with a certain volume of working fluid. One end of the cylinder is a hot chamber and the other end is a cold chamber. The working fluid is compressed in the low-temperature cold chamber, and then flows into the high-temperature hot chamber to be heated rapidly, and the expansion work fuel is continuously burned in the combustion chamber outside the cylinder, and is transmitted to the working fluid through the heater, and the working fluid is not directly involved in the combustion and is not replaced. The disadvantage is that the work is done entirely through the air, the power will be relatively small, and it is okay to take the car, and the train, I am afraid that the engine will occupy a larger space than the trailer. ”

"This should be reported to the engineering department, and they should be asked to think about it, since this engine can be used to push the car, it can be used to solve the problem of commuting between bases. But I remember that the steam engine has to be warmed up first, what about this? ”

Liu Shenhong nodded, "This one is the same, it also needs to be heated, but the time is much shorter than that of a steam engine, after all, heating air is much faster than boiling a boiler of water." ”

………………………………

The design drawings of the Stirling engine, the working principle document was quickly sent to the engineering department, Qian Longzhou naturally knew that it was impossible to use the four treasures of the study to write things in this era, and now the electricity generated by this miniature Stirling generator is not enough to charge the mobile phone, so he can only draw a detailed design drawing with the pencil and paper that brought the drawing, and then let Liu Shenhong write down the working principle on it.

Originally, Qian Longzhou was reluctant to use drawing paper to write this, but all the paper bought on the market was rice paper, and the rice paper of different thicknesses had no problem under the brush and ink, but when it came to the hard pencil head, it was not possible to get it, either it was pulled up by a stroke, or after the painting was finished, the whole paper was broken into several pieces, which made him full of deep malice towards the paper of this new world, and he had already felt the grinding effect of the straw paper like sandpaper, and the surprise of the rice paper that made the fingers break out of the cocoon from time to time. In just four or five days, the Ministry of Industry received several requests from the Champa Port Trading Post to develop office paper, toilet paper, external combustion engines and small generators.

Zhang Yuan slammed the documents on the table and complained loudly to Xiao Jing, "He Qian Longzhou treats us as a cornucopia, right?" Office paper needs kaolin to be manufactured, and now most of the kaolin found by the remote exploration team is coal measure kaolin, which is very difficult to mine and utilize, and papermaking requires the establishment of a paper mill, do we have time to do this now? ”

Xiao Jing picked up the application documents and looked at them carefully, and comforted, "I said Zhang Yuan, don't be angry, you look at the first one, office paper is very important, the paper inventory we brought over has bottomed out, and now the executive committee is already advocating double-sided printing and the use of printing blank space records, papermaking is something that must be implemented immediately, our development in the past few days has only gained a firm foothold, with the start of large-scale education soon, the paper consumed at that time is terrible." We happen to have wood now, and the wood here is mainly hardwood, which is very suitable for making wood pulp, and the paper mill will have to face this matter sooner or later, so it is better for us to invest it earlier. I'll it! Xiao Jing suddenly scolded.

Zhang Yuan was a little strange, and hurriedly took the document and looked at it, there was nothing on it.

I saw Xiao Jing pat his forehead, "We didn't purchase papermaking equipment when we purchased!" ”

"I'll go!" Zhang Yuan also slapped his forehead, "I didn't think of this problem at that time, hurry up and convene a meeting, this must be approved quickly, papermaking equipment should have materials in the big library, and it should be imitated as soon as possible." ”

Xiao Jing was about to turn around and go out to inform the industrial team, but was stopped by Zhang Yuan again, "What about this external combustion engine?" ”

"Pull it down, haven't they already built the external combustion engine? Let them build a few more on their own, we haven't even built an ironworks here. ”

…………………………

At this time, in the north of Vostochny Harbor, hundreds of captives were laying processed wood side by side under the supervision of the "pirates" holding strange poles in front of them. This is the road and bridge department of the transportation team is leading the captives to lay a railway to the river, there is a coal mine on the other side of the river, although it has not yet been decided whether the industrial zone will be placed on the other side of the river or in the port of Vostochny, but no matter where it is, large-scale transportation must be carried out. In view of the fact that most of the cars and engineering equipment that crossed the road at this time had been lying on their stomachs in order to save fuel, I heard that Liu Yeqiang, who made biodiesel, scraped grease on the windowsill in the kitchen every day, and the grease at this time was not enough to eat by himself, so he did not consider the possibility of making biodiesel now, so the road and bridge group decided to lay a railway to the coal mine area for transportation. At this time, the industrial group is building a train by hand, the power part of the train is two single-cylinder diesel engines, and the gas produced by the fuel gas generator is used, because there is not enough steel at this time, and the railway at this time is simply two wooden tracks lying on the sleepers, although Du Yande has questioned the weight that this wooden track can bear, but the road and bridge group believes that the power is limited for these two single-cylinder diesel engines, and the gas is used, and the loss of power is more obvious. Therefore, the train will certainly not be able to tow a lot of goods, and there is no problem with this in the early days, as for the steam engine train that is built later, it is a big deal to change the tracks when the time comes.

However, the road and bridge group still attaches great importance to the bridge on the river, they chose a narrow place to build a bridge, because even the narrowest river surface has a span of 12 meters, building a bridge has become a very challenging thing, the road and bridge group received more than 40 kinds of bridge design drawings, from wooden arch bridges to cable-stayed iron bridges, Xie Mingfang looked at these drawings and couldn't laugh, cable-stayed shovels she wanted to build one, but there had to be so much steel. It was also suggested that a stone arch bridge should be built directly, but there was not enough stone nearby, and the construction method of the Zhaozhou Bridge was obviously not feasible here, so it was proposed to build a base in the river with bricks first, and then build a bridge on the base.

"I don't think we should build a bridge now......" Xie Mingfang suggested to Yang Minghuan, who was stunned, "How can we cross the river if we don't build a bridge?" ”

"We don't have enough materials right now, and although we have a lot of wood, we don't have any building materials to fix the wood. If it is to build a stone bridge, then too many stones are needed, and there is a lot of soil near us, but rocks are scarce materials. The only suitable thing is to pour cement, but now we don't have coal and no limestone, so firing cement is completely hopeless. Now it seems that we can only use the most primitive method, the pontoon. ”

"Pontoon?" Yang Minghuan continued to be stunned, "The pontoon bridge will block the waterway, and when the summer rainy season comes, the river will swell and it may wash away the pontoon." ”

"It's the dry winter season, the water flow is small, the water surface width is small, and the pontoon is the right time to use it. We are already building an ironworks, and we should have enough building materials to build a wooden bridge by March next year, when the hydrology of the river can be measured, and a stronger bridge can be built. ”

"And what kind of bridge do you think is more appropriate?"

"I think the River Kwai Bridge is the most suitable." Xie Mingfang said with a smile.