Effects of evaporator frosting and defrosting on the performance of air-to-water heat pumps
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As frosting commences, heat extracted from the air by the evaporator is reduced, resulting in a decrease in refrigerant temperature, a decrease in refrigerant density at the compressor inlet, and reduction in both refrigerant flow rate and compressor power.
“As frosting commences, the heat extracted from the air by evaporator is reduced, resulting in a decrease in refrigerant temperature, yielding a decrease in refrigerant density at the compressor inlet and leading to reduction in both refrigerant flow rate and compressor power.”
From Studies of an air cooler under frost condition (2019) · cites this paper as Tassou and Marquand (1987)
The mass of frost accumulated on the evaporator increases with air relative humidity.
“The mass of frost accumulated on the evaporator increases with air relative humidity.”
From Studies of an air cooler under frost condition (2019) · cites this paper as Tassou and Marquand (1987)
The heating capacity and COP of the heat pump increased initially but later showed a gradual drop due to the insulating effect and drop in air flow.
“The heating capacity and COP of the heat pump increased initially but later showed a gradual drop due to the insulating effect and drop in air flow.”
From Studies of an air cooler under frost condition (2019) · cites this paper as Tassou and Marquand (1987)
Cited by
Sorted by citations
Xia, Y., Zhong, Y., Hrnjak, P. S., & Jacobi, A. M. (2006) · International Journal of Refrigeration · doi:10.1016/j.ijrefrig.2006.03.005 · Cited by 148 · see citing works
A new method of defrosting evaporator coils
Mader, G., & Thybo, C. (2012) · Applied Thermal Engineering · doi:10.1016/j.applthermaleng.2012.01.033 · Cited by 37 · see citing works
Studies of an air cooler under frost condition
Cheng, Y. C. (2019) · doi:10.32657/10356/6557
“Chapter 2 27 Tassou and Marquand (1987) and Ameen (1993) studied the overall performance of heat pump under frosting condition.”
BackgroundResultInfluential
- Authors
- Tassou, S. A., & Marquand, C. J.
- Affiliations
- University of West London (GB)
- ORCID
- Tassou, S.A.
- Venue
- Applied Energy
- Publisher
- Elsevier BV
- Published
- 1987
- Volume
- 28
- Issue
- 1
- Pages
- 19-33
- ISSN
- 0306-2619 (ISSN-L)
- OpenAlex
- W1978576078
- Cited by
- 19
- References
- 0
- Citations by year
- 2024: 3 · 2022: 1 · 2021: 1 · 2019: 1 · 2017: 1 · 2013: 1 · 2012: 2
- FWCI
- 1.36
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Energy (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Refrigeration and Air Conditioning Technologies
- Physical Sciences › Engineering › Mechanical Engineering › Adsorption and Cooling Systems
- Physical Sciences › Engineering › Building and Construction › Building Energy and Comfort Optimization
- Keywords
- air-to-water heat pump, thawing, frost formation, ambient temperature, humidity effects, pressure difference, evaporator coil
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