Energy performance of a lightweight opaque ventilated fa莽ade integrated with the HVAC system using saturated exhaust indoor air
- 作者：Claudio Cianfrini ; Massimo Corcione ; massimo.corcione@uniroma1.it ; Emanuele Habib ; Alessandro Quintino
- 关键词：Energy saving ; Lightweight ventilated opaque faç ; ade ; Evaporative air-cooling ; Recovery heat exchanger ; Numerical simulation
- 刊名：Energy and Buildings
- 出版年：2012
- 期刊代码：12_03787788
- 类别：pw
- 出版时间：July, 2012
- 卷：50
- 期：Complete
- 页码：26-34
- 文件大小：768 K
摘要
The energetic performance of an integrated system basically consisting of an adiabatic humidifier, a lightweight mechanically ventilated opaque fa莽ade equipped with a direct evaporative air-cooling device, and an air-to-air heat exchanger for energy transfer from the outdoor airstream to the exhaust airstream leaving the air space, is analyzed numerically using an in-house-developed computer code. The minor energy consumptions with respect to a basic configuration consisting of a traditional closed cavity wall and a recovery equipment wherein energy is transferred from the outdoor air to the exhaust air extracted from within the building, are also calculated by introducing a cooling performance index and discussed in full details. A dimensional empirical correlation that expresses such cooling performance index as a function of the several independent variables considered is also proposed.