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Mini review on a technological map of R744 heat pumps.
Number: 0029
Author(s) : KANBUR B. B., KRIEZI E. E., ELMEGAARD B., SKOVRUP M., SEVER M.
Summary
The recent global challenges in current socioeconomic conditions have raised efforts for alternative ways of searching for gas- and oil-fuelled boilers that supply hot water to buildings for heating and/or domestic use. Heat pumps, which are in the heating capacity range of 20 kW-200 kW, are strong candidates for replacing fossil-fuelled boilers. Among other heat pump solutions, carbon dioxide-based solutions are more popular thanks to their environment-friendly and energy-efficient operating conditions; thus, they have been under technology radar over the last years, especially for residential and industrial purposes. This paper presents a mini-review of the carbon dioxide heat pump technologies from the component- to system-level, as appears in literature and industry, by generating a technological map of the solution throughout time. The review starts with an overview; then focuses on the R744 heat pump components; which are followed by discussions related to the system-level studies.
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Details
- Original title: Mini review on a technological map of R744 heat pumps.
- Record ID : 30030988
- Languages: English
- Source: 10th IIR Conference on Ammonia and CO2 Refrigeration Technologies.
- Publication date: 2023/04/27
- DOI: http://dx.doi.org/10.18462/iir.nh3-co2.2023.0029
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Indexing
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Themes:
Heat pumps techniques;
CO2 - Keywords: Heat pump; Domestic heat pump; R744; Compressor; Expansion valve; Evaporator; Gas cooler; Performance; Air-source system; Water-source system; Review
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