Chapter 129: Bladeless turbine

"I can upgrade the shelter ( to find the latest chapter!
The resurgence of old love between old lovers is only an episode after all, and how to survive is the theme of the current doomsday.
For Chen Xin, he now has no need to worry about how to survive.
The emergence of hot spring water has greatly increased the heat energy that the ground source heat pump can obtain. Even if Chen Xin turns off the equipment, the temperature of the refuge can be maintained at about 13-16 ℃ due to the influence of the warming of groundwater.
If it is not necessary to maintain the temperature of the greenhouse, the ground source heat pump that Chen Xin has just built is even somewhat redundant.
But this also gave him a new idea, which is to use the heat generated by the ground source heat pump to generate electricity.
This is technically not difficult to achieve. It is only necessary to connect a heat recovery device to the heat pipe, and then use the heat to convert thermal energy and convert it into electrical energy.
As for the means of converting thermal energy into electrical energy, the steam turbines commonly used in thermal power plants are sufficient to complete the task.
When it comes to steam turbines, Chen Xin used to be a geek fan for a while when he was in college. In the dormitory, he used the air-bed blower and waste discs to transform a Tesla turbine that can really power the light bulb.
Although this thing has no practical meaning at all, it relies solely on the blower to drive the impeller to rotate and work, but on the whole, the thing is considered to be made, and it is not complicated to make it. Chen Xin’s computer is now And the drawings he used at the time.
The Tesla turbine is a turbine invented by the legendary federal physicist Nikola Tesla.
The efficiency of this kind of turbine is much higher than that of the traditional blade turbine. Nikola Tesla once dreamed of using it to generate electricity from geothermal heat.
Of course, although this technology looks very beautiful, it is still restricted by many conditions in practical applications, so that this technology has been invented by Nikola Tesla for more than a hundred years, and practical applications are still very few.
The main reason that restricts the promotion and application of this technology is that the internal rotor must be thin enough and smooth enough disks to be arranged in a dense enough manner to form a large enough rotor, so that the rotor can pass the fluid through the rotor. Drive the rotor to rotate at a high speed under the action of the boundary layer effect.
This undoubtedly places extremely high requirements on the material used to make the disc, which must be both light and strong.
And a big problem with bladeless turbines is that the greater the load, the lower the efficiency, and in order to achieve a sufficiently high speed, the fluid flow through the rotor must be as small as possible.
But this is not a problem for Chen Xin.
With the help of the system, the production of the rotor is not a problem at all, and what Chen Xin needs is a small generator that can meet the electricity needs of his refuge, neither the load nor the fluid flow is too big.

"Axin, what are you doing?" Qin Lan couldn't help feeling very curious as he watched Chen Xin continuously process a piece of metal material on the workbench into thin circular metal pieces.
"Being a turbine, I plan to use the surplus heat of the ground source heat pump to generate electricity. This requires a turbine." Hearing Qin Lan's inquiry, Chen Xin explained to her and did not stop his work.
Chen Xin is not actually processing these round metal sheets by himself, but in Qin Lan's eyes, Chen Xin is processing them by himself.
With the help of the system, the metal materials are processed into thin paper-like metal discs and assembled, and then the main shaft is installed in the middle, and the rotor of the bladeless turbine is finished.
Qin Lan looked at Chen Xin's serious work, and did not disturb him, but leaned against Chen Xin's workbench and watched him work quietly.
There is a saying that men who work hard are the most handsome, and the expression Qin Lan looks at Chen Xin at this time undoubtedly confirms this sentence.
However, Chen Xin didn't notice the infatuation in Qin Lan's eyes when he saw him. He just installed the assembled rotor into the volute.
After assembling the casing of the entire turbine, after checking that there was no problem, Chen Xin turned the rotor by hand again, and confirmed that the rotor was operating normally by manual turning, and then the entire volute was connected to the gearbox.
Although the speed of the bladeless turbine is high, the torque is not large. If you want to obtain sufficient output power, it is necessary to reduce the speed with a gearbox to increase the torque of the drive shaft.
This is not a complicated process. A set of planetary gears can solve the problem.
As for the generator part, it is even simpler. Even junior high school students understand the principle of cutting the magnetic induction line to generate electricity.
After all the parts are assembled and a generator connected to a bladeless turbine is completed, the next step is naturally installation.
"Alan, help me carry it." The finished generator was a little heavy, and Chen Xin had to ask Qin Lan to help.
The two carried the generator to the side of the ground source heat pump~EbookFREE.me~ and put down the generator. Qin Lan asked curiously: "Where should this be installed?"
"Just connect the pipe to the condenser. The airflow in the pipe can absorb the heat emitted by the condenser when passing through the condenser, so that the volume of the air expands, forming a high-speed airflow to drive the rotor of the turbine to rotate." Chen Xin After an explanation, he opened the system interface and chose to consume survival points to install equipment.
The system installation is much more convenient and quicker than Chen Xin’s manual installation. He even helped him with the wiring and connected the generator to the power distribution room.
As Chen Xin adjusted the output power of the ground source heat pump, and at the same time turned on the switch of the turbine, the generator also started running.
"It's really moving!" Seeing that the turbines and generators that were connected to the condenser by Chen Xin were moving, Qin Lan couldn't help but exclaimed, "Axin, you are so amazing!"
"Anyone who knows a little about mechanical processing and physics can make this, it's nothing great." Chen Xin shook his head, and didn't feel proud of Qin Lan's praise: "If it weren't for the hot springs underground that caused the ground temperature to rise, this set The power generation of the system is enough to maintain the ground source heat pump equipment running by itself.
But now that the ground temperature rises, the excess heat energy can be converted into more electricity. As long as the power of the generator is larger, it should be able to maintain my electricity consumption here.
I am only worried that the groundwater temperature rise is temporary. When the ruptured groundwater layer is blocked again, if the low temperature drops..."
At this point, Chen Xin couldn't help showing a worried expression.
"Axin, you are too pessimistic, think better, maybe this is permanent? You will have hot springs in the future." Qin Lan laughed and encouraged Chen Xin with a smile, hoping that he would be more optimistic.