Study on the Performance of Air Conditioning System Combining Heat Pipe and Vapor Compression Based on Ground Source Energy-Bus for Commercial buildings in north China

Yijun Gao
Tsinghua University, Beijing, China

Wei Wu
Tsinghua University, Beijing, China

Zongwei Han
Tsinghua University, Beijing, China

Xianting Li
Tsinghua University, Beijing, China

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp110571321

Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:12, s. 1321-1328

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Publicerad: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


After introducing the application status and problems of geothermal air conditioning system in China; a new kind of ground source air-conditioning system (EBCS) is put forward. The system consists of distributed air-conditioners combining heat pipe and vapor compression; fresh air handling unit with large enthalpy difference and ground source water loop. Geothermal energy is transported to the combined air-conditioners for heating and cooling by water loop. The combined air-conditioner can be operated at heat pump condition or heat pipe condition for air conditioning. In winter and transition season; the cooling energy in ground can be directly used for the cooling in inner zone by heat pipe mode; while the recovered heat is used for heating in peripheral zone.

To analyze the performance of proposed system; a commercial building in north China has been taken as the research object; and the annual energy use is simulated. It is shown that the new system can save 21.7% energy compared to the traditional ground source heat pump system; and may be a potential air conditioning system for commercial buildings in north China.


Building energy efficiency; Ground source; Heat pipe; Water loop; fresh air handing unit; air conditioning.


[1] W. Yang; J. Zhou; W. Xu; and G; Zhang. Current status of ground source heat pump in China. Energ. Policy; vol. 38; 2010: 323-332. doi: 10.1016/j.enpol.2009.09.021.

[2] Tao Meng. Yanqing Di; Li Liu; et al. Research of ground heat balance of ground source heat pump. 2009 International Conference on Energy and Environment Technology; 2009: 777-781. doi: 10.1109/ICEET.2009.194.

[3] Xianting Li; Yijun Gao; Zongwei Han; et al. A new central air conditioning system combining heat pipe and vapor compression based on energy-bus. HEATING VENTILATING & AIR CONDITIONING; Vol.41; No.2; 2011: 1-6.

[4] Chen Feng; Deng Yuchun; Xue Zhifeng and Wu Ruhong. Toolpack for building environment simulation. HEATING VENTILATING & AIR CONDITIONING; Vol.29; No.4; 1999: 58-63.

[5] Zongwei Han; Maoyu Zheng; Fanhong Kong. Simulation research on solar-assisted ground source heat pump heating system with seasonal soil thermal storage in severe cold area. ACTA ENERGIAE SOLARIS SINICA. Vol.29; No.5; 2008: 574-580.

[6] Liu Tianwei; Du Kai. Research on the energy saving of water loop heat pump system applied to office buildings. HEATING VENTILATING & AIR CONDITIONING; Vol.40; No.3; 2010: 63-67.

[7] Huang Bing;Yang Chang-zhi. Resarch on simulation and economic assessment of ground source heat pump system. FLUID MACHINERY; Vol.38; No.1; 2010: 75-80.

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