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Experimental tests on different systems for heat recovery on exhausted air.

Author(s) : SERRAINO M., RANZATO G.

Summary

This paper describes the realization of a test device which aim is to estimate the energy efficiency of the heat recovery systems on the exhausted air. The systems which are tested are: a cross-flow heat exchanger, an enthalpy device and a reversible heat pump with evaporator and condenser (in cooling mode, vice versa in heating mode), respectively located on the supply air flow and on the exhausted one. These systems, characterized by low air flow rates and designed for residential use, can also work in stand-alone mode. The apparatus used for the tests had been built in order to make an energy efficiency analysis on the above mentioned three different systems, with controlled and variable conditions typical of the Italian climate. The experimental activity goals are: the evaluation of the energy efficiency variations as a function of the temperature and the relative humidity boundary conditions of the two airflows (supply and exhausted); the evaluation of the differences in the energy savings calculations performed using the experimental results; and finally, the evaluation of the actual seasonal averaged efficiency of the three compared systems.

Details

  • Original title: Experimental tests on different systems for heat recovery on exhausted air.
  • Record ID : 2008-2220
  • Languages: English
  • Source: Technological innovations in air-conditioning and refrigeration industry + CD-ROM.
  • Publication date: 2007/06/08

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