Experimental study of the influence of external factors on the functionality of a regenerative decentralized ventilation unit

Abstract

The article presents an experimental field study of the influence of environmental factors on the functionality of a commercial decentralized ventilation device for regenerative utilization of heat from the exhaust air, intended for installation in an external wall of buildings. The experiments included measurements during the winter and summer seasons. Real operating situations with two regenerative heat exchange matrices are presented and tested. The results of the experiments show that the functionality of the ventilation and heat recovery device does not meet the characteristics that the device shows under standard laboratory conditions.

Audit of opportunities for improving the energy performance of office buildings by renewable sources

“…The air exchange rate in the building is high (0.63 h -1 ), due to the constant opening of windows, which leads to constant heat loss from infiltration. Therefore second measure for innovative heat recovery ventilation could be implemented too, [6].…”