What is the Working Principle of Air Source Heat Pump Cooling?

The principle of air source heat pump heating and cooling is mainly based on heat pump technology, which realizes heat transfer and exchange through reverse Carnot cycle. Specifically, the working principle of air source heat pump heating and cooling is as follows:

1. Working principle of air source heat pump heating

The air source heat pump heating system uses low-grade heat energy in the air, compresses this heat into high-temperature heat energy through a compressor, and then exchanges heat through a condenser or evaporator to heat the cold water, and then transfers the hot water to the indoor terminal equipment (such as floor heating pipes or radiators) through a circulation system, thereby achieving the purpose of heating.

The system consists of key components such as evaporator, compressor, condenser and expansion valve. In the evaporator, the refrigerant absorbs heat from the air and evaporates, and then increases its temperature and pressure through the compressor. The high-temperature and high-pressure refrigerant enters the condenser, releases heat to the indoor air, and then reduces the pressure through the expansion valve and returns to the evaporator, and the cycle repeats.

2. Working principle of air source heat pump refrigeration

Air source heat pump refrigeration is also based on the reverse Carnot cycle principle. The refrigerant circulates in the compressor, evaporator, condenser and expansion valve to achieve heat transfer and exchange. When the system is running, the compressor sucks in low-temperature and low-pressure refrigerant gas and compresses it into high-temperature and high-pressure gas and sends it to the condenser. Then the high-temperature and high-pressure refrigerant gas releases heat to the air through the cooling fan or natural convection, and at the same time it is cooled and condensed into liquid. The liquid refrigerant evaporates rapidly through the expansion valve and absorbs a large amount of heat, which greatly reduces the temperature. Finally, the low-temperature and low-pressure refrigerant liquid enters the evaporator to absorb heat from the air, lowering the air temperature and achieving a cooling effect.

The core of air source heat pump heating and cooling technology is to use a small amount of electrical energy to drive the compressor to work, absorb or release heat from the air through the heat pump cycle, thereby achieving efficient heating and cooling effects.