CIESC Journal ›› 2014, Vol. 65 ›› Issue (z2): 208-214.doi: 10.3969/j.issn.0438-1157.2014.z2.031

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System configuration and experimental study on LFG based biogas engine driven heat pump

WU Jiying1,2, MA Yimin1,2   

  1. 1. College of Mechanical and Energy Engineering, Jimei University, Xiamen 361021, Fujian, China;
    2. Fujian Province Key Laboratory of Energy Cleaning Utilization and Development, Xiamen 361021, Fujian, China
  • Received:2014-08-22 Revised:2014-08-28 Online:2015-01-05 Published:2014-09-02
  • Supported by:

    supported by the Natural Science Foundation of Fujian Province(2010J01301).


The system equipment configuration of a landfill gas (LFG) fueled biogas engine driven heat pump energy-saving system was studied, and the LFG collecting and purifying flow process was analyzed. By constructing an experimental plant, the performance of the system was tested. The results of experiments indicated that when the biogas engine operated at 70%—90% of its rated speed, the energy efficiency of the system would reach its maximum. That is because the waste heat recovery rate of exhaust fume was relatively higher, although the heat supplied by the system was not the maximum. Compared with other heating systems, biogas engine driven heat pump system can significantly reduce the consumption of fossil fuels and improve heating capability. Therefore, the heating system developed can lower energy consumption and utilize renewable energy sources comprehensively.

Key words: LFG, biogas engine driven heat pump, performance test, fume waste heat recovery, energy conservation

CLC Number: 

  • TU832.2

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