According to the law of conservation of energy, using 1kW·h of electricity to generate heat cannot exceed 1KW·h in any case. However, if you use ground source heat pump technology, you can use 1KW·h of electricity to generate 4KW·h of heat. Or coldness.
At first glance, this seems magical, and it feels a bit like civil science and deception, but in fact it is real technology, and things that can achieve this kind of efficiency are everywhere in our lives, among which the most representative ones are everywhere. The only thing is air conditioning.
In thermodynamics, the ratio of energy conversion efficiency is called energy efficiency ratio COP.
Among them, electric heaters, that is, direct electric heating, have the lowest energy efficiency ratio, only about 60%. That is, they consume 1KW·h of electrical energy and can generate·h of heat.
In addition to electric heating, the energy efficiency ratio of energy boilers is also different depending on the fuel. Among them, the energy efficiency ratio of natural gas and oil-fired boilers can reach 0.9, while that of coal-fired boilers is only 0.6.
On the contrary, the energy efficiency ratio of electric boilers is quite high, which can reach 0.95. That is to say, it is better to boil water faster than using an electric oven directly.
Being able to achieve an energy efficiency ratio of 0.9 is already very efficient. After all, the law of conservation of energy is stuck here, and it cannot reach 1 no matter what.
But when the air conditioner is cooling, the energy efficiency ratio can reach more than 3.
This does not violate the law of conservation of energy, because the air conditioner uses refrigerant to transport indoor heat to the outdoors. The heat it drives is not generated by it, but exists in itself. The air conditioner just transports it.
In fact, in Yanguo, air conditioners with an energy efficiency ratio lower than 2.6~2.8 are not allowed to be sold at all, and only those with an energy efficiency ratio of 3.2 or above can be called real air conditioners.
Understanding this, it is not surprising that ground source heat pumps can achieve an energy efficiency ratio of 4.
As for why air conditioners and ground source heat pumps can achieve such high energy efficiency ratios, it is because they have a series of equipment including compressors, evaporators, condensers, and expansion valves, which are more complex than boilers and other equipment. a lot of.
However, just because it has a complete set of complex equipment, it also brings considerable energy.
Using 1KW·h electricity to bring 4KW·h heat, this is obviously input > output.
Looking at this data, an idea came to Chen Xin's mind. He found a piece of paper and a pencil and planned to think about it.
"Using 1KW·h electricity to bring 4KW·h heat, even if only half of the heat is used for heating, it is more profitable than directly using an electric heater or electric boiler..." Chen Xin scribbled on the paper casually, he was not What to draw? This is just a tool to assist in thinking: "If half of the heat is used for heating, the remaining half of the heat is recovered and used to generate electricity..."
What is drawn on the paper is not important. What is important is what Chen Xin is thinking about in his mind at this moment. As he was thinking, a light came into his mind!
"No matter how low the efficiency is, as long as it has an energy efficiency ratio of 0.6, this system can continue to operate on its own!" Chen Xin slammed the table hard and became excited.
This is not some nonsense perpetual motion machine, it is just waste heat recovery power generation that is very common in industry. Of course, Chen Xin recovers a lot of waste heat, enough to make this equipment self-sustaining.
It is not difficult to achieve this, because after the refrigerant brings the heat up from the ground, it needs to evaporate and dissipate to release a large amount of heat. In this process, whether Chen Xin is preparing to boil water or generate electricity through temperature difference, it can generate There is enough power to keep the entire system running, and there is enough thermal energy for heating.
As for the need to drill holes into the ground to implement this system, Chen Xin lives in an underground shelter. There is a soil layer of more than 200 meters thick above his head, which is approximately equal to 200 meters underground.
This can be seen from the fact that Chen Xin's shelter still has a temperature of 7℃ when the outside temperature is -34℃. If the ventilation system is not constantly ventilating and changing, causing a certain amount of heat energy to be lost, The temperature in the shelter can actually be a little higher.
Therefore, if Chen Xin wants to use the ground temperature, he doesn't have to worry too much. He only needs to bury the pipes in the ground, or even directly into the soil of his greenhouse.
Although doing so is likely to cause the soil temperature of the greenhouse to drop, affecting crop growth.
But Chen Xin could just build this system in the soil of the greenhouse, and then use the system upgrade to re-plan and bury the pipes deeper into the ground.
In fact, Chen Xin's entire shelter is wrapped in thick reinforced concrete and thermal insulation. If Chen Xin wants to bury the pipes in the real ground, he will have to penetrate at least 40 centimeters of reinforced concrete. of.
Without system help, Chen Xin would simply give up on the idea.
After having the system, all Chen Xin needed to do was to use the system to upgrade.
By now, Chen Xin has completely understood the horror of this system. Although it only has a simple upgrade function and does not have as many tricks and exchanges as other systems, it is such a simple function. If used well, it will be amazing. You can play with flowers.
It is true that the system cannot conjure things out of thin air, it must have basic items as a foundation, but in fact the upgrade of the system is still very scary.
Chen Xin writes novels, and novelists are monsters with black holes above their necks. In addition, he likes to think, so Chen Xin once tried to analyze the principles of system upgrades.
However, he came to the conclusion that the upgrade of the system was far from what he imagined, where he could store high technology and then upgrade and unlock it step by step.
But a more terrifying concept upgrade.
To give the simplest example, if the system is a technology upgrade, then if Chen Xin has a tree stick, he can choose to process the tree stick into a spear, a stick, a sword or a bow and arrow, and in subsequent upgrades, add Replace it with new materials and make it more advanced.
All of this should have a context and rules to follow. After all, the development of every technology must have its prerequisite technology.
However, although the upgrade of the system seems to be the same, it is actually much scarier, because according to the function of blurring the concept of information state attached to the system, Chen Xin analyzed that the so-called upgrade of the system is to change something in a conceptual and information sense. An object becomes more powerful.
Since this advanced civilization can modify the information contained in an item to make people think it is reasonable, it can naturally also modify the information contained in the item to make it more conceptual. And Chen Xin's choice of upgrade plan, It is the process of giving concepts. (End of chapter)