气候变化领域集成服务门户(CCPortal): Utilizing shallow geothermal energy to develop an energy efficient HVAC system

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DOI	10.1016/j.renene.2019.09.032
	Utilizing shallow geothermal energy to develop an energy efficient HVAC system
	Lyu W.; Li X.; Yan S.; Jiang S.
发表日期	2020
ISSN	9601481
起始页码	672
结束页码	682
卷号	147
英文摘要	Traditionally, shallow geothermal energy is utilized by a ground source heat pump. In fact, the temperature of shallow geothermal energy is typically quite suitable for the cooling/heating of building envelopes and fresh air. To utilize shallow geothermal energy more efficiently, an integrated system is proposed that combines pipe-embedded walls, pipe-embedded windows, and fresh air pre-handling system with the conventional ground source heat pump system. This proposal is based on the temperature comparison among indoor air, envelopes, fresh air and undisturbed soil. A simulation model of the integrated system is developed on the platform of TRNSYS. The free-running temperature and energy consumption of the integrated system applied in an office building in Beijing are investigated. The results show that the free-running temperature of the integrated system is always below 28 °C throughout the year, and the non-air conditioning period is extended by 34% compared with the conventional GSHP system. Moreover, the integrated system can greatly reduce the peak load, and the heat pump system capacity can be reduced by as much as 30%. The annual cumulated load for the building is reduced by approximately 43%. Consequently, the energy saving rate is approximately 29% compared with that of the conventional GSHP system. The emission reduction of CO2 is more than 7 kg per square meter. Therefore, the integrated system can fully utilize shallow geothermal energy to build an energy efficient HVAC system. Elsevier Ltd
英文关键词	Building energy efficiency; Free-running temperature; Fresh air pre-handling; Pipe-embedded envelope; Shallow geothermal energy
scopus关键词	Air conditioning; Emission control; Energy efficiency; Energy utilization; Geothermal energy; HVAC; Integrated control; Office buildings; Pumps; Simulation platform; Building energy efficiency; Building envelopes; Emission reduction; Energy-saving rates; Fresh air; Integrated systems; Shallow geothermal energies; Undisturbed soils; Geothermal heat pumps; air conditioning; building; carbon dioxide; computer simulation; energy efficiency; energy planning; geothermal energy; heat transfer; pipe flow; reduction; temperature effect
来源期刊	Renewable Energy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176971
推荐引用方式 GB/T 7714	Lyu W.,Li X.,Yan S.,et al. Utilizing shallow geothermal energy to develop an energy efficient HVAC system[J],2020,147.
APA	Lyu W.,Li X.,Yan S.,&Jiang S..(2020).Utilizing shallow geothermal energy to develop an energy efficient HVAC system.Renewable Energy,147.
MLA	Lyu W.,et al."Utilizing shallow geothermal energy to develop an energy efficient HVAC system".Renewable Energy 147(2020).