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In 2004 the UK's Alba plc and the Turkish Koç's Beko jointly took over Grundig Home InterMedia System, Grundig's consumer electronics division. In 2007 Alba sold its half of the business to Koç for US$50.3 million, [ 15 ] although it retained the license to use the Grundig brand in the UK until 2010, and in Australasia until 2012.
A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.
In general, heat pumps work most efficiently (that is, the heat output produced for a given energy input) when the difference between the heat source and the heat sink is small. When using a heat pump for space or water heating, therefore, the heat pump will be most efficient in mild conditions, and decline in efficiency on very cold days.
Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]
Ground Source Heat Pumps are NOT GEOTHERMAL. They are solar thermal systems as they utilise energy stored in the soil from the sun. A geothermal system utilises heat that results from friction in the core and mantle layers of the earth. A true geothermal system does not require the use of a heat pump as it will quite happily generate steam.
The absorption heat pump can be used as a cooler during summer while, during winter, it can be used on heat pump or heat transformer mode according to the available heat source. [6] The performance of the absorption heat pump is indicated by the coefficient of performance (COP). The COP is the ratio of the removed (for refrigeration) or ...
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