LAPSE:2023.21146
Published Article
LAPSE:2023.21146
Performance Analysis of a Combined Solar-Assisted Heat Pump Heating System in Xi’an, China
March 21, 2023
Abstract
This study proposed a combined solar-assisted heat pump (SAHP) system that could operate in the serial mode or parallel mode. For this proposed system, a stable year-round operation could be achieved without the assistance of electric heating or low-temperature heat pump. By analyzing the heat balance equations, a correlation of the combined SAHP system for the two modes switched was obtained, which provided a theoretical basis for the optimal operation of this system. In addition, the performance of the proposed system applied in a university bathroom in Xi’an district was investigated using TRNSYS. The results illustrated that compared to the serial and parallel systems, the proposed system exhibited a good performance on energy efficiency. The annual average coefficient of performance (COP) of the proposed system was 5.7, obviously higher than those of the serial system and the parallel system, which were 3.3 and 4.3, respectively. Therefore, the results in this study could provide the theoretical guidance and reference for practical engineering design.
This study proposed a combined solar-assisted heat pump (SAHP) system that could operate in the serial mode or parallel mode. For this proposed system, a stable year-round operation could be achieved without the assistance of electric heating or low-temperature heat pump. By analyzing the heat balance equations, a correlation of the combined SAHP system for the two modes switched was obtained, which provided a theoretical basis for the optimal operation of this system. In addition, the performance of the proposed system applied in a university bathroom in Xi’an district was investigated using TRNSYS. The results illustrated that compared to the serial and parallel systems, the proposed system exhibited a good performance on energy efficiency. The annual average coefficient of performance (COP) of the proposed system was 5.7, obviously higher than those of the serial system and the parallel system, which were 3.3 and 4.3, respectively. Therefore, the results in this study could provide the theoretical guidance and reference for practical engineering design.
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Keywords
combined system, COP, parallel system, serial system, solar-assisted heat pump, TRNSYS
Subject
Suggested Citation
Huan C, Li S, Wang F, Liu L, Zhao Y, Wang Z, Tao P. Performance Analysis of a Combined Solar-Assisted Heat Pump Heating System in Xi’an, China. (2023). LAPSE:2023.21146
Author Affiliations
Huan C: Energy School, Xi’an University of Science and Technology, Xi’an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China [ORCID]
Li S: Energy School, Xi’an University of Science and Technology, Xi’an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China
Wang F: School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Liu L: Energy School, Xi’an University of Science and Technology, Xi’an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China
Zhao Y: Energy School, Xi’an University of Science and Technology, Xi’an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China
Wang Z: School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Tao P: Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an 710021, China [ORCID]
Li S: Energy School, Xi’an University of Science and Technology, Xi’an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China
Wang F: School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Liu L: Energy School, Xi’an University of Science and Technology, Xi’an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China
Zhao Y: Energy School, Xi’an University of Science and Technology, Xi’an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi’an 710054, China
Wang Z: School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Tao P: Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi’an 710021, China [ORCID]
Journal Name
Energies
Volume
12
Issue
13
Article Number
E2515
Year
2019
Publication Date
2019-06-29
ISSN
1996-1073
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PII: en12132515, Publication Type: Journal Article
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LAPSE:2023.21146
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https://doi.org/10.3390/en12132515
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Mar 21, 2023
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