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Heating tower-heat pump system with concentration device.

Author(s) : NISHIMURA H., KONG C. N., TAKAHASHI A., SAKAMOTO T., TSUJI H.

Summary

The authors developed a heat pump system incorporating a heating tower to recover heat from the atmosphere and reduce the energy consumed by a building's HVAC system. A compact and inexpensive heating tower was fabricated by modifying an opening crossflow type cooling tower, and an aqueous solution of polyethylene glycol was used as antifreeze. A heating tower of 50 RT scale was build as a prototype system, was operated through the summer and winter of 1992. The results obtained showed that the COP of the heat pump and the entire system is satisfactory, that the heating tower can be designed in common with the design technology for a cooling tower, and that the concentration of the antifreeze changes according to the vapour pressure difference between the antifreeze and outdoor air. It was also found that the antifreeze concentration must be managed.

Details

  • Original title: Heating tower-heat pump system with concentration device.
  • Record ID : 1995-0534
  • Languages: English
  • Publication date: 1993/11/01
  • Source: Source: CLIMA 2000, London
    n. 112; 10 p.; 9 fig.; 3 tabl.; 3 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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