THERMAL SCIENCE
International Scientific Journal
OPTIMIZATION OF A HYBRID HEATING SYSTEM COMBINING AN AIR SOURCE HEAT PUMP AND WATER STORAGE IN NORTHWEST CHINA
ABSTRACT
In order to address the issue of inadequate heating in the northwest region of China, a hybrid heating system combining an air source heat pump and water storage is proposed. The proposed operation strategy and heating regulation mode are implemented in a water storage heating system and a hybrid heating system combining air source heat pump and water storage constructed using TRNSYS software. The optimization design is carried out with the annual cost value as the objective function. As a case study, the results demonstrate that the initial investment of the water storage thermoelectric boiler heating system increases with the increase of the heat storage ratio, while the annual operating cost decreases with the increase of the heat storage ratio. When the increased equivalent annual cost during the heating season exactly offsets the reduced annual operating cost, the optimal heat storage ratio is achieved. Furthermore, the optimal system is discussed. From the standpoint of comprehensive economic and energy conservation, the hybrid heating system exhibits notable advantages.
KEYWORDS
PAPER SUBMITTED: 2024-04-15
PAPER REVISED: 2024-07-07
PAPER ACCEPTED: 2024-07-07
PUBLISHED ONLINE: 2025-07-06
THERMAL SCIENCE YEAR
2025, VOLUME
29, ISSUE
Issue 3, PAGES [1899 - 1907]
- Wang, H., et al., Test Investigation of Operation Performance of Novel Split-Type Ground Source Heat Pump Systems for Clean Heating of Rural Households in North China, Renewable Energy, 163 (2021), Jan., pp. 188-197
- Liu, Z., et al., Challenges and Opportunities for Carbon Neutrality in China, Nature Reviews Earth and Environment, 3 (2022), 2, pp. 141-155
- ***, CABEE, China's Building Energy Consumption and Carbon Emissions Research Report 2022, Chongqing. mp.weixin.qq.com/s/7Hr__rkhS70owqTbYI_XuA
- Gan, L., et al., Regional Inequality in the Carbon Emission Intensity of Public Buildings in China, Building and Environment, 225 (2022), Nov., pp. 1-11
- Yao, X., et al., Can Urbanization Process and Carbon Emission Abatement be Harmonious? New Evidence from China, Environmental Impact Assessment Review, 71 (2018), July, pp. 70-83
- Wang, X., et al., Employing Cationic Kraft Lignin as an Electrolyte Additive to Enhance the Electrochemical Performance of Rechargeable Aqueous Zinc-Ion Battery, Fuel, 333 (2023), 126450
- Deng, M., et al., Techno-Economic Performances of Clean Heating Solutions to Replace Raw Coal for Heating in Northern Rural China, Energy and Buildings, 240 (2011), 110881
- Brenn, J., et al., Comparison of Natural Gas Driven Heat Pumps and Electrically Driven Heat Pumps with Conventional Systems for Building Heating Purposes, Energy and Building, 42 (2010), 6, pp. 904-908
- Zhao, N., You, F., Can Renewable Generation, Energy Storage and Energy Efficient Technologies Enable Carbon Neutral Energy Transition? Applied Energy, 279 (2020), 115889
- Wang, W., et al., Performances of ASHP System for a Kind of Mal-Defrost Phenomenon Appearing in Moderate Climate Conditions, Applied Energy, 112 (2013), Dec., pp. 1138-1145
- Zhang, Q. L., et al., Techno-Economic Analysis of Air Source Heat Pump Applied for Space Heating in Northern China, Applied Energy, 207 (2017), Dec., pp. 533-542
- Ma, G., et al., Experimental Investigation of Air-Source Heat Pump for Cold Regions, International Journal of Refrigeration, 26 (2003), 3, pp. 12-18
- Dong, J. K., et al., Defrosting Performances of a Multi-Split ASHP with Phase Change Thermal Storage, International Journal of Refrigeration, 55 (2015), July, pp. 49-59
- Yang, B., et al., Heating and Energy Storage Characteristics of Multi-Split ASHP Based on Energy Storage Defrosting, Applied Energy, 238 (2019), Mar., pp. 303-310
- Pourfayaz, F., et al., Numerically Investigating the Effect of Using Nanofluids on the Thermal Performance and Coefficient of Performance of a U-Tube Deep Borehole Ground Source Heat Pump, Geoenergy Science and Engineering, 238 (2024), 212890
- Narei, H., et al., The Effect of Employing Nanofluid on Reducing the Bore Length of a Vertical Ground-Source Heat Pump, Energy Conversion and Management, 123 (2016), Sept., pp. 581-591
- He, J. H., et al., Efficacy of a Modulated Viscosity-Dependent Temperature/Nanoparticles Concentration Parameter on a Non-linear Radiative Electromagneto-Nanofluid Flow Along an Elongated Stretching Sheet, Journal of Applied and Computational Mechanics, 9 (2023), 3, pp. 848-860
- He, J. H., Abd-Elazem, N. Y., The Carbon Nanotube-Embedded Boundary Layer Theory for Energy Harvesting, Facta Universitatis, Series: Mechanical Engineering, 20 (2022), 2, pp. 211-235