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Vinsamlegast notið þetta auðkenni þegar þið vitnið til verksins eða tengið í það: http://hdl.handle.net/1946/7761

Titill
en

Design of a water-CO2 evaporator : adoption of a carbon dioxide heat pump to geothermal conditions

Höfundur
Leiðbeinandi
Útgáfa
Febrúar 2009
Útdráttur
en

In this thesis the utilization of CO2 heat pumps, together with low-enthalpy geothermal waters or energy of waste water, will be discussed and an attempt will be made to convince the reader that those devices can be used in a simple way to save energy and mitigate global warming.
Basing on the so-called EcoCute air to water CO2 heat pump, a unit which can make use of low temperature geothermal resources, as the external lower heat source will be designed. To reach this target special attention will be paid to the design of a water to carbon dioxide evaporator.
The evaporator type suggested here is of a shell and tube design, with capillary copper tubes which are optimized for incoming water temperatures ranging from 15°C to 40°C and a working fluid pressure of 4MPa. This design will guarantee a small pressure drop on the CO2 side, no leaks, relatively large heat transfer area and will be worth its price.

Athugasemdir
en

Verkefnið er unnið í tengslum við Háskóla Íslands og Háskólann á Akureyri

Birting
22.3.2011


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