Residential high efficiency air cooled heat exchanger design

Residential high efficiency air cooled heat exchanger design

HSEER AW12/B-QPNHS, Air-source heat pump, often used in moderate climates, use the difference between outdoor air temperatures and indoor air temperatures to cool and heat your home, at the same time to supply domestic hot water.

AW12/B-QPNHS, high efficiency air source heat pump, stainless steel cabinet, with internal Wilo water pump and electric heater. It is heating & cooling unit, single phase, R410a refrigeration, designed and tested by EN14511, approved by TUV china branch, adopts the following world famous parts:
* SWEP or GEA plate type heat exchanger
* Siemens controller
* Daikin scroll compressor
* Schneider A/C contactor
* Emersion thermal expansion valve
* Emersion dry filter
*Soft start is standard part

How does a air source heat pump work?
An air source heat pump is made up of three main components - an evaporator coil, a compressor, and a heat exchanger.
The evaporator coil is fitted to the outside of an external wall. It absorbs heat from the outside air. The compressor pushes the refrigerant gas through the system compressing it until it is at the desired temperature (typically up to 35-40 degrees Celcius). The hot refrigerant then passes through the heat exchanger where the heat from the refrigerant is transferred to water or air.

The operation of a heat pump can be reversed and used to cool down the air in a building by radiating it outside - behaving in exactly the same way as a refrigerator.

Coefficient of performance
Heat pumps are measured by their coefficient of performance (COP). The COP for air source heat pumps is very similar to that for ground source heat pumps at approximately 2-3. With a COP for instance of 3, 3 units of heat are produced for every 1 unit of electricity consumed. (The two free units of heating were extracted from the outside air). Even with ambient air temperatures of -10 to -15 degrees Celsius, an air source heat pump can extract useful heat (i.e. > 1 unit of heat generated per unit of electricity consumed).

AW12/B-QPNHS technical data

HISEER, the brand name itself means high seasonal energy efficiency ratio.

Impressed by the founder’s specialist knowledge and experience at refrigeration fields, helped by the closed cooperation with engineers from world famous companies such as Hitachi, Siemens, SWEP, Honeywell, Emerson, etc. HIEER management team is keen to committed innovation to develop low carbon emissions heat pumps to fight for the world warming and power shortage. HISEER heat pumps, such as air source heat pumps, injection low temperature air to water heat pumps, geothermal ground source heat pumps are changing our ways of living, to reduce our foot print. HISEER is consistently create new possibilities to develop new technology for reducing carbon emissions, enhance people’s comfort and improve lives.