compression, condensation, Referat, Hausaufgabe, Heatpumps
Themengleiche Dokumente anzeigen

HEATPUMPS: What´s that and how do they work? Improvements in energy efficiency, leading to lower environmental pollution, particularly by CO2, can be achieved in many ways. The heat pump, which can be used for heating and cooling buildings as well as in many industrial processes, offers the best prospects for attaining these goals in a wide variety of appropriate applications. By upgrading low temperature heat, enabling it to be used at a higher temperature, the heat pump can use fossil fuel resources more effectively than conventional heating methods. The heat pump is the only known process that recirculates environmental or waste heat back into a heat production process, and therefore can dramatically reduce the demand for fossil fuels as well as NOx, hydrocarbons, acid rain and CO2-emissions. Detailed studies have shown that electric- or gas-driven heat pumps would reduce emissions of CO2 and other pollutants associated with space heating in Europe by between 30 and 50 , depending upon the conditions of use. The vast majority of heat pumps operate on the vapour compression cycle , which can accommodate electric motor or gas engine drives. A growing minority of heat pumps employ what is called the absorption cycle. They predominantly use gas as fuel and are directly-fired. Many other methods exist, but are not yet widely applied. Source: Brochure Heat Pumps - an option for an energy efficient and clean society of the Commission of the European Communities. The vapour ...

Anzahl Wörter:
Bewertung dieser Hausaufgabe
Diese Hausaufgabe wurde bislang noch nicht bewertet.