Знание отопления

Question:What is a heat pump? Answer:A heat pump extracts low temperature energy from the environment and increases its temperature for heating purposes. Heat pump efficiencies are normally quoted as the coefficient of performance of the system, these are typically in the range 3 to 5. In other words, extracting heat from renewable sources requires just 1kW […]

How heat pumps achieve energy savings and CO2 emissions reductionHeat pumps and energy savingThis section gives a brief introduction to heat pumps. Based on six basic facts about heat supply the value of heat pumps is discussed. It is argued that heat pumps are very energy efficient, and therefore environmentally benign. An efficient technologyHeat pumps […]

Heat Pump Technology Heat flows naturally from a higher to a lower temperature. Heat pumps, however, are able to force the heat flow in the other direction, using a relatively small amount of high quality drive energy (electricity, fuel, or high-temperature waste heat). Thus heat pumps can transfer heat from natural heat sources in the […]

Heat sources The technical and economic performance of a heat pump is closely related to the characteristics of the heat source. An ideal heat source for heat pumps in buildings has a high and stable temperature during the heating season, is abundantly available, is not corrosive or polluted, has favourable thermophysical properties, and its utilisation […]

Heat pump performanceThe heat delivered by a heat pump is theoretically the sum of the heat extracted from the heat source and the energy needed to drive the cycle. The steady-state performance of an electric compression heat pump at a given set of temperature conditions is referred to as the coefficient of performance (COP). It […]

Heat pumps in residential and commercial buildingsFunctionsHeat pumps for heating and cooling buildings can be divided into four main categories depending on their operational function: Heating-only heat pumps, providing space heating and/or water heating. Heating and cooling heat pumps, providing both space heating and cooling.The most common type is the reversible air-to-air heat pump, which […]

Abbreviations Below common abbreviations related to heat pumping technology are listed. The list is not complete and it will continuously be updated.AHUAn air handling unit, or air handler COPCoefficient Of PerformanceCFC  ChlorofluorocarbonDHWDomestic Hot WaterDXDirect ExpansionEEREnergy Efficiency RatioEESEarth Energy SystemGCHPGround Coupled Heat PumpGHPGeothermal Heat PumpGSHPGround Source Heat PumpGWHPGround Water Heat PumpGWPGlobal Warming PotentialHCFCHydrochlorofluorocarbonHDH Cumulative Heating Degree HoursHFCHydrofluorocarbonHSPFHeating […]