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This work presents a new low pressure heat pumping process COOL-HOT (CO2 loop for Hybrid Operation Thermal-pumping), of CO2/amines-wet compression/re-sorption type. Monoethanolamine is selected as CO2 absorbent. The COOL-HOT process is thermally modelled, following a basic scheme of the compression/resorption cycle. COPs have values within 2.53 and 8.76. A thermal comparison shows that COOL-HOT has superior heating COP values as compared to other experimental ammonia/water compression/resorption systems given in the literature, and that its thermal performance with respect to the Lorenz cycle might be quite high. Technically, being a low pressure process, COOL-HOT has the advantage of a fail-safe operation with respect to the transcritical CO2 cycle, or to other tested compression/resorption cycles.
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Details
- Original title: CO2 hybrid heat pump: the "COOL-HOT" process.
- Record ID : 2005-2812
- Languages: English
- Source: Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
- Publication date: 2004/08/01
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Indexing
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Themes:
Heat pumps techniques;
Compression systems;
CO2;
Absorption and adsorption systems - Keywords: Comparison; Lorenz; Resorption; Amine; Absorption; Heat pump; Modelling; Ethanol; Thermodynamic cycle; Cycle; COP; Compression; CO2
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