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Steady state vapor compression refrigeration cycle simulation for a monovalent inverter-driven water-to-water heat pump with a desuperheater for low energy houses

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Title: Steady state vapor compression refrigeration cycle simulation for a monovalent inverter-driven water-to-water heat pump with a desuperheater for low energy houses
Other Titles: Simulation d'un cycle frigorifique à compression de vapeur en régime permanent pour une pompe à chaleur eau-eau monovalente munie d'un désurchauffeur destinée aux maisons à faible consommation d'énergie
Authors: Blanco, David L. Browse this author
Nagano, Katsunori Browse this author →KAKEN DB
Morimoto, Masahiro Browse this author
Keywords: Modeling
Simulation
Heat pump
Compression system
Hot water
Heating
Issue Date: Nov-2012
Publisher: Elsevier
Journal Title: International Journal of Refrigeration
Volume: 35
Issue: 7
Start Page: 1833
End Page: 1847
Publisher DOI: 10.1016/j.ijrefrig.2012.07.005
Abstract: A steady-state simulation is presented for a monovalent inverter-driven water-to-water heat pump with a desuperheater. For design-oriented simulations, superheating or subcooling degrees are used as input. However, the proposed simulation only uses the system's refrigerant charge, environmental, and control parameters, which make it particularly useful for off-design evaluations, including the annual performance factor calculation. Block models were used for the compressor and electronic expansion valve, while novel adaptive zone models were used for the heat exchangers. A multivariable error minimization algorithm was used over a sequential component scheme to provide global convergence. The numerical calculations were compared with 118 experimental results. The resulting COP agrees within 10% for 95.77% of the data. The mapping results reveal a maximum COP deviation of 8.78%. Computational results for the studied system reveal that a constant degree of superheating might not always maximize the COP.
Type: article (author version)
URI: http://hdl.handle.net/2115/52252
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: David Leonardo Blanco

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