JIANGSU SUNCHI NEW ENERGY CO.,LTD.

Air Source Heat Pump Working Principle

The working principle of the air source heat pump system is consistent with the working principle of the refrigeration cooling system. To understand the working principle of the heat pump, we must first understand the working principle of the refrigeration cooling system. The refrigeration cooling system (compressed refrigeration) generally consists of four parts : a compressor, a condenser, a throttle valve, and an evaporator. The working process is as follows: a low temperature and low pressure liquid refrigerant R410A (for example, Freon)-- is first absorbed heat in a vaporizer (for example, an air conditioner indoor unit) from a high temperature heat source (for example, room temperature air) and vaporized into a low pressure vapor.-- The refrigerant gas is then compressed in the compressor into a high temperature, high pressure gas which is cooled in the condenser by a low temperature heat source (e.g., condensor water) to form a high pressure liquid. --The throttling element (capillary, thermal expansion valve, electronic expansion valve, etc.) is throttled into a low temperature and low pressure liquid refrigerant. ---This completes a refrigeration cycle.

The air source heat pump (ASHP) is a system which transfers heat from outside to inside a building, or vice versa. Under the principles of vapor compression refrigeration, an ASHP uses a refrigerant system involving a compressor and a condenser to absorb heat at one place and release it at another. They can be used as a space heater or cooler, and are sometimes called "reverse-cycle air conditioners".

In domestic heating use, an ASHP absorbs heat from outside air and releases it inside the building, as hot air, hot water-filled radiators, underfloor heating and/or domestic hot water supply. The same system can often do the reverse in summer, cooling the inside of the house. Newest technology by R410A+R134A refrigerant combine into one dc inveter heat pump machine , the air source heat pump (ASHP) can offer a full central heating solution and domestic hot water up to 90 °C by radiator to heating room .
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