I warm the house according to the Carnot cycle: from 1 kW of electricity I get 3.81 kW of heat
Asking the "Unified State Exam generation" to scroll further, this article is for those who at least understand something in physics and at least have heard about the Carnot cycle. So, I'll tell you about our house - this is a log house built in the 1990s with a total area of 100 square meters. It was installed not by German engineers, but by simple village guys from the Kirov region, and the house can certainly not be called energy efficient.
It stands on the usual foundation of the MZFL, outside it is sheathed with 100 mm mineral wool and two sheets of glassine. Log thickness ~ 22 cm. That is, to the state of a "thermos house", oh how far we are.
With all this, only 500-600 watts of electricity are spent to maintain heat in three residential premises and in a corridor with a total area of 60 square meters.
I will not pull the rubber for a long time and say that the point is that I heat the house with electricity. But not convectors or oil radiators, but air conditioning.
This is much more profitable because our air conditioner takes 1 kW of electricity from the outlet, and produces up to 3.81 kilowatts of heat. No, no, the law of conservation of energy is not violated here, it is used here Carnot cycle.
The air conditioner has a closed loop made of copper tubes, into which freon gas is pumped. Freon has non-standard physical properties: in the cold and when compressed by a compressor, it starts to warm up, and this is in our favor: the compressor pumps warm freon from the street to the room, where the freon line is blown by the fans of the indoor unit and gives warmth into the house. And so in a circle. Who cares - see. Carnot cycle on Wikipedia.
I don't want to be unfounded, and I will show a video showing how much my air conditioner is currently consuming and what temperature it shows.
Measurement is performed using a Robiton PM-2 wattmeter.
Hope you waited for the ad to end before the video
and made sure of the veracity of the title of the article.
I successfully I have been heating my house with an air conditioner (heat pump) since autumn 2020. Electricity bills were coming in funny
(from 1 to 4 thousand rubles) at a price of almost 4 rubles / kWh.
In this article I have already talked in more detail about the Carnot cycle. I recommend reading.
Many people ask what kind of air conditioner I have and why it heats up to -15, and not to -5, like all household ones. I answer - Cooper & Hunter CH-S18FTX5(there are, of course, more expensive models that work up to -30. But I'm not a million (yet).
To monitor the consumption of the air conditioner, I use the Robiton PM-2 wattmeter, it counts according to the day and night tariffs and sums up the total number of spent kW-hours during the period of operation of the device.