A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The frosting and soil imbalance performance issues of building heat pumps: An overview
Graphical abstract Display Omitted
Highlight Overviewing the performance behavior of air source heat pumps under frosting conditions. Overviewing the performance behavior of air source heat pumps with different defrosting/frost suppression methods. Analyzing the performance of ground source heat pumps under soil thermal imbalance. Overviewing the performance behavior of ground source heat pumps with different remedies to the soil thermal imbalance issue. Analyzing the economic impact of frosting and soil thermal imbalance in heat pumps.
Abstract Building Heat pumps transfer heat energy from low heat sources to high heat sinks for different applications and various types of heat pumps have been developed for building heating and cooling applications. However, some performance issues like frosting and soil thermal imbalance have been observed during the operation of these equipment. Frosting as a performance issue in Air-Source Heat Pumps (ASHP) systems occurs normally under air temperature between −7 to 5.5 °C and a relative humidity above 60 %. The frosting deteriorates the heating capacity of an ASHP and sometimes can lead to the system shutdown. The soil thermal imbalance is a performance issue observed in Ground Source Heat Pump (GSHP) systems that has a main root in the heat difference between the heat absorbed from the ground and the heat rejected to the ground during the operation of these GSHP systems. This work overviews the characteristic nature of the two issues in heat pumps and the performance behavior of different techniques developed to address the issues. Based on literature reviewed, defrosting and frost suppression have been widely used and researched on as solutions to the frosting problem and have shown a significant impact on the performance improvement of ASHPs under frosting conditions. The coupling of solar systems with GSHPs has also shown to address the problem of soil thermal imbalance at some level extent. This work has different benefits either for researchers who need data on the performance issues of heat pumps for further discoveries and improvements, to the reader who need to use heat pumps and to the manufacturers for effective heat pump production.
The frosting and soil imbalance performance issues of building heat pumps: An overview
Graphical abstract Display Omitted
Highlight Overviewing the performance behavior of air source heat pumps under frosting conditions. Overviewing the performance behavior of air source heat pumps with different defrosting/frost suppression methods. Analyzing the performance of ground source heat pumps under soil thermal imbalance. Overviewing the performance behavior of ground source heat pumps with different remedies to the soil thermal imbalance issue. Analyzing the economic impact of frosting and soil thermal imbalance in heat pumps.
Abstract Building Heat pumps transfer heat energy from low heat sources to high heat sinks for different applications and various types of heat pumps have been developed for building heating and cooling applications. However, some performance issues like frosting and soil thermal imbalance have been observed during the operation of these equipment. Frosting as a performance issue in Air-Source Heat Pumps (ASHP) systems occurs normally under air temperature between −7 to 5.5 °C and a relative humidity above 60 %. The frosting deteriorates the heating capacity of an ASHP and sometimes can lead to the system shutdown. The soil thermal imbalance is a performance issue observed in Ground Source Heat Pump (GSHP) systems that has a main root in the heat difference between the heat absorbed from the ground and the heat rejected to the ground during the operation of these GSHP systems. This work overviews the characteristic nature of the two issues in heat pumps and the performance behavior of different techniques developed to address the issues. Based on literature reviewed, defrosting and frost suppression have been widely used and researched on as solutions to the frosting problem and have shown a significant impact on the performance improvement of ASHPs under frosting conditions. The coupling of solar systems with GSHPs has also shown to address the problem of soil thermal imbalance at some level extent. This work has different benefits either for researchers who need data on the performance issues of heat pumps for further discoveries and improvements, to the reader who need to use heat pumps and to the manufacturers for effective heat pump production.
The frosting and soil imbalance performance issues of building heat pumps: An overview
Bisengimana, Emmanuel (author) / Zhou, Jinzhi (author) / Binama, Maxime (author) / Zhao, Kaiming (author) / Abbas, Sajid (author) / Yuan, Yanping (author)
Energy and Buildings ; 273
2022-08-11
Article (Journal)
Electronic Resource
English
| British Library Conference Proceedings | 1990
| British Library Conference Proceedings | 1990