Heat pump is a machine that draws heat from one place to another investment of outside work. Usually it’s the colder places to warmer.
The heat pump is the foundation Board of machinery and equipment:
- refrigerator and freeze
- Air Conditioning
- some types of heating
Heating with heat pumps
Heating heat pump is a device that uses non-traditional sources of energy for central heating (central heating), heating and hot water. Wide range of uses otherwise unavailable energy – nízkopotencionálneho heat from our surroundings (ie water, air, earth or waste heat), when the overdrafts will trigger a change of temperature to a level usable in the heating system. The basic view of heat pumps is that the planet’s global temperature regime is directly added heat from the combustion of any fuel. Indirectly, there is a certain amount of heat in power plants – the production of electricity consumed to run a heat pump.
Principle and function
The principle of heat pump is known for more than 100 years. The first major technical applications of this method of heating took place in y. 1936th Extensive use of heat pumps for heating, however, occurred earlier than the increase in energy prices early seventies.
Definition of heat pump
According to the second sentence of thermodynamic heat energy flows from the substance or object of higher temperature to a substance or object at a lower temperature. In the ambient environment (air, water, earth) are enormous natural energy resources at a low temperature level. These energy sources can be used to heating only when their thermal energy pumped through a device at a higher temperature level. Heat pumps are therefore devices withdraw heat energy from heat sources that are available and the potential heat is not directly usable. Useful heat is composed of heat, which was a source of heat removed by cooling and heating, which is equal to energy fuel. In practical terms, the heat pump cooling device whose purpose is warm instead of cooling.
The principle of heat pump air-water
The basis of the heat pump is a closed circuit filled with refrigerant. Heat pump, or cooling circuit has four basic parts:
Evaporator: The evaporator is fed ambient air of low potential heat. Brought the heat causes evaporation of refrigerant, refrigerant vapor to become winners and thermal energy are transferred into the compressor. Air flow through the evaporator ensures axial fan or fans are doing so cool. Air is the primary route circuit TC.
Compressor: couples sucked from the evaporator, compresses and displaces them into the condenser. Work to drive the compressor is converted into heat, which is added to the heat introduced into the evaporator.
Capacitor: energy brought into the condenser vapor refrigerant from the evaporator and the compressor is transferred to the circulating heat sink (secondary circuit TC). Carry-over heat the heating medium heats.
Throttle valve: liquid refrigerant to the condenser skondenzovalo the upper (vapor) pressure, is injected into the evaporator to be here again evaporated at the lower (evaporation) pressure.