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Application of the exergy concept to ventilation with heat recovery.

Toepassing van het exergieconcept op ventilatie met warmteterugwinning.

Author(s) : SAKULPIPATSIN P., CAUBERG J. J. M., KOOI H. J. van der, et al.

Type of article: Article

Summary

This paper describes steady-state energy and exergy analyses on an instantaneous and on a daily basis for domestic ventilation systems and domestic hot water production systems. The ventilation system uses either mechanical exhaust with environmental air supply without heat recovery, or balanced ventilation with heat recovery. The exhaust ventilation air is used to preheat domestic hot water, using a heat exchanger or a heat pump. Energy and exergy demands in winter days for De Bilt, The Netherlands, are presented at the component level, in terms of heat and electricity, tor the systems. The results indicate that for these winter days the total energy demands, but not the total exergy demands, of balanced ventilation and domestic hot water production with preheat by the exhaust ventilation air using a heat pump are lowest. The total exergy demands are dominated by the exergy of electricity input to the heat recovery unit and the heat pump.

Details

  • Original title: Toepassing van het exergieconcept op ventilatie met warmteterugwinning.
  • Record ID : 2009-2144
  • Languages: Dutch
  • Source: TVVL Mag. - vol. 37 - n. 5
  • Publication date: 2008/05
  • Document available for consultation in the library of the IIR headquarters only.

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