Heat Pumps

A heat pump is a set of devices that transfer heat by a compressor, low-temperature heat transfer from the heat source, to heat up. Then sent to the desired source with high heat by the Heat Sink, which uses the cooling cycle with heat. Which can be found in air conditioning systems that transfer the cold but use the heat from the machine to make hot water The cooling obtained from the heat pump is a by-product. Can be used with air conditioning systems Or mixed with Fresh air to cool.
In general, heat pumps can produce hot water up to 70 (<70 C)  degrees Celsius, depending on the type of refrigerant used. It can make hot water instead of using oil or natural gas to produce hot water. A heat pump is a system with a high coefficient of performance (COP), typically greater than 3 (attention only to heating), thus saving energy compared With the production of hot water using oil or natural gas boilers with a COP of approximately 0.75 – 0.95, in addition to heating water, the Heat Pump can also be used for heating air for drying, heating indoor air or can reduce the humidity of the air.

Components of the HEAT PUMP SYSTEMS

According to the meaning of ARI (Air Condition and Refrigeration Institute), it consists of the following main equipment.

1. Condenser is responsible for cooling from the working fluid to the heat source.

2. Evaporator absorbs heat from the heat source.

3. Compressor serves to compress the vapor of the working substance to a higher temperature than the surrounding temperature.

4. Expansion Valve In the case of a small system, a capillary tube is used instead. It is responsible for reducing the pressure of the working fluid.

5. Accessories include water pump, control unit and pressure gauge. Temperature control and measuring unit Electrical control and measurement units

Maintaining a heat pump system is similar to an air conditioning system. This is done by cleaning the condenser, evaporator and cooling fins. For the most efficient heat transfer Generally use the wind. To eliminate dust due to the increasing problem with dust and regularly check the function.