Performance investigation of air source heat pump heating system with a novel thermal storage refrigerant-heated panel

2020 ◽  
Author(s):  
Wandong Zheng ◽  
Suola Shao ◽  
Huan Zhang ◽  
Shijun You ◽  
Chenxiao Zheng
Keyword(s):  
Heat Pump ◽  
Thermal Storage ◽  
Heating System ◽  
Air Source Heat Pump

Experimental Investigation of Air-Source Heat Pump Heating System With a Novel Thermal Storage Refrigerant-Heated Panel

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Suola Shao ◽  
Huan Zhang ◽  
Shijun You ◽  
Yaran Wang
Keyword(s):  
Heat Pump ◽  
Air Temperature ◽  
Thermal Storage ◽  
Heating System ◽  
Economic Feasibility ◽  
Coefficient Of Performance ◽  
Total Annual Cost ◽  
Condensation Temperature ◽  
Outdoor Air ◽  
Air Source Heat Pump

Abstract In response to the triple crisis of energy–environment–economy (3Es), the air-source heat pump (ASHP) system is considered to be one of the most feasible candidates to upgrade the traditional high emission heating solutions. In this paper, a novel thermal storage refrigerant-heated panel (RHP) is proposed for the ASHP heating system. Experiments were conducted in a climate chamber to test the heating and defrosting performance of the system, the thermal performance of the RHP, the system energy efficiency, and the system economic feasibility. The results show that the heat flux of the RHP is as high as 625.5 W/m2 at a condensation temperature of 40 °C and an outdoor air temperature of −7 °C. Meanwhile, the system is demonstrated to be reliable and competitive with efficient thermal stability in heating conditions and comfortable indoor thermal in defrosting conditions. The coefficient of performance (COP) ranges from 2.2 to 4.0 when the outdoor air temperature changes from −12 °C to 7 °C in the tests. Meanwhile, the initial capital cost and the total annual cost of the proposed system are 430 USD and 203.1 USD, respectively, which is competitive in the distracted heating systems.

Experimental study on a novel thermal storage refrigerant-heated radiator coupled with air source heat pump heating system

2019 ◽  
Vol 164 ◽  
pp. 106341 ◽  
Author(s):  
Huan Zhang ◽  
Lingfei Jiang ◽  
Wandong Zheng ◽  
Shijun You ◽  
Tingting Jiang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Heat Pump ◽  
Thermal Storage ◽  
Heating System ◽  
Air Source Heat Pump

Optimization of hybrid – ground coupled and air source – heat pump systems in combination with thermal storage

2010 ◽  
Vol 30 (8-9) ◽  
pp. 1073-1077 ◽  
Author(s):  
N. Pardo ◽  
Á. Montero ◽  
J. Martos ◽  
J.F. Urchueguía
Keyword(s):  
Heat Pump ◽  
Thermal Storage ◽  
Air Source Heat Pump

scholarly journals Technical Characteristics in the Diffusion of Cleaner Residential Heating System in China: The Case of Air-Source Heat Pump Technology

2019 ◽  
Vol 12 ◽  
pp. 194008291985591 ◽  
Author(s):  
Dejin Su ◽  
Wenli Zhou ◽  
Qixia Du ◽  
Yongchun Huang
Keyword(s):  
Product Design ◽  
Heat Pump ◽  
User Satisfaction ◽  
Linear Regression Analysis ◽  
Heating System ◽  
Product Knowledge ◽  
Total Cost ◽  
Positive Effects ◽  
Air Source Heat Pump ◽  
Residential Heating

This study aims to explore the technical characteristics that affect user satisfaction with air-source heat pump technology which is recognized as one typical cleaner residential heating system and being promoted in China in response to the national “coal to electricity” policy. Moderated hierarchical linear regression analysis was conducted to analyze data from a questionnaire survey of 256 residents in suburban Beijing. Empirical results indicated that product convenience, product design, product reliability, product knowledge, and total cost, respectively, affect user satisfaction, but product safety has no significant effect on user satisfaction. Meanwhile, total cost is an important contingent factor that might weaken the positive effects of product convenience (or product design) on user satisfaction. Our research provides empirical evidence for identifying factors that influence user satisfaction with cleaner residential heating system in response to new energy policy and further provides useful managerial implications for market practice.

scholarly journals A Domestic Solar/Heat Pump Heating System Incorporating Latent and Stratified Thermal Storage

2008 ◽  
Author(s):  
Christoph Trinkl ◽  
Wilfried Zo¨rner ◽  
Vic Hanby
Keyword(s):  
Latent Heat ◽  
Heat Pump ◽  
Solar Collector ◽  
Energy Demand ◽  
Heat Storage ◽  
Thermal Storage ◽  
Heating System ◽  
System Control ◽  
Latent Heat Storage ◽  
Solar Heat

Both solar and heat pump heating systems are innovative technologies for sustaining ecological heat generation. They are gaining more and more importance due to the accelerating pace of climate change and the rising cost of limited fossil resources. Against this background, a heating system combining solar thermal collectors, heat pump, stratified thermal storage and water/ice latent heat storage has been investigated. The major advantages of the proposed solar/heat pump heating system are considered to be its flexible application (suitable for new and existing buildings because of acceptable space demand) as well as the improvement of solar fraction (extended solar collector utilisation time, enhanced collector efficiency), i.e. the reduction of electric energy demand for the heat pump. In order to investigate and optimise the heating system, a dynamic system simulation model was developed. On this basis, a fundamental control strategy was derived for the overall coordination of the heating system with particular regard to the performance of the two storage tanks. In a simulation study, a fundamental investigation of the heating system configuration was carried out and optimisation derived for the system control as well as the selection of components and their dimensioning. The influence of different parameters on the system performance was identified, where the collector area and the latent heat storage volume were found to be the predominant parameters for system dimensioning. For a modern one-family house, a solar collector area of 30m2 and a latent heat store volume of 12.5m3 are proposed. In this configuration, the heating system reaches a seasonal performance factor of 4.6, meaning that 78% of the building’s and users’ heat demand are delivered by solar energy. The results show that the solar/heat pump heating system can give an acceptable performance using up-to-date components in a state-of-the-art building.

Performance analysis and optimization of a solar-air source heat pump heating system in Tibet, China

2020 ◽  
Vol 220 ◽  
pp. 110084 ◽  
Author(s):  
Tianhe Long ◽  
Zhenyong Qiao ◽  
Meilin Wang ◽  
Yongcai Li ◽  
Jun Lu ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Heat Pump ◽  
Heating System ◽  
Air Source Heat Pump

scholarly journals Frosting Phenomenon and Frost-Free Technology of Outdoor Air Heat Exchanger for an Air-Source Heat Pump System in China: An Analysis and Review

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2642 ◽  
Author(s):  
Yi Zhang ◽  
Guanmin Zhang ◽  
Aiqun Zhang ◽  
Yinhan Jin ◽  
Ruirui Ru ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Heat Pump ◽  
Operating Cost ◽  
Heating System ◽  
Coefficient Of Performance ◽  
Outdoor Air ◽  
Pump System ◽  
Heat Pump System ◽  
Reduce Operating Cost ◽  
Air Source Heat Pump

Frost layer on the outdoor air heat exchanger surface in an air-source heat pump (ASHP) can decrease the system coefficient of performance (COP). Although the common defrosting and anti-frosting methods can improve the COP, the periodic defrosting not only reduces the system energy efficiency but also deteriorates the indoor environment. To solve these problems, it is necessary to clearly understand the frosting phenomenon and to achieve the system frost-free operation. This paper focused firstly on the analyses of frosting pathways and frosting maps. Followed by summarizing the characteristics of frost-free technologies. And then the performances of two types of frost-free ASHP (FFASHP) systems were reviewed, and the exergy and economic analysis of a FFASHP heating system were carried out. Finally, the existing problems related to the FFASHP technologies were proposed. Results show that the existing frosting maps need to be further improved. The FFASHP systems can not only achieve continuous frost-free operation but reduce operating cost. And the total COP of the FFASHP heating system is approximately 30–64% higher than that of the conventional ASHP system under the same frosting conditions. However, the investment cost of the FFASHP system increases, and its reliability also needs further field test in a wider frosting environment. In the future, combined with a new frosting map, the control strategy for the FFASHP system should be optimized.

Sign in / Sign up

Export Citation Format

Share Document