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Combination of a transpired solar wall and an air source heat pump.

Number: 824

Author(s) : NOUANEGUE H. F., LE LOSTEC B.

Summary

Transpired solar walls are commonly used in commercial and institutional buildings to preheat outside air. The efficiency of this process is correlated to the air velocity generated by the HVAC ventilation. Therefore, the technology has known very little expansion in residential buildings because of the relatively small needs of mechanically renewing air. This study proposes to use transpired solar collectors in residential buildings. For this purposes, a numerical model combining a transpired solar wall equipped with an air source heat pump for the heating needs of a residential building has been developed. The solar wall is being used to preheat the air entering the evaporator of the heat pump. The model is built in the TRNSYS environment. Results show that the energy consumption of the heat pump system decreases with increasing the area of the solar wall. The heat pumps capacity and the cut-off temperature have almost no effect on the system behavior but the reduction of the air velocity inside the solar wall air gap improves the overall energy gain.

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Pages: 10 p.

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Details

  • Original title: Combination of a transpired solar wall and an air source heat pump.
  • Record ID : 30009951
  • Languages: English
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

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