Evaluation of energy savings related to building envelope retrofit ...
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Posting Date | 2 September 2010Publication Date | 2010
Country | Pan European
Geographic Coverage | International
Theme | Building envelope (walls, windows,...), Air conditioning, cooling, ventilation, air infiltration, Energy efficiency technologies and materials, Thermal comfort, indoor air quality, acoustics
Type of publication | Article
Publisher | Mines ParisTech (France)
Number pages | 13
Submitted by François Durier (CETIAT )
Source Languages | English
Evaluation of energy savings related to building envelope retrofit techniques and ventilation strategies for low energy cooling in offices and commercial sector
This paper is based on some results of the European Commission supported project KeepCool2. It
discusses a methodology for bottom-up assessment of the energy savings related to “sustainable
summer comfort” solutions: reference base case building typologies in offices and commercial sector are analyzed in 5 european typical climates, and dynamic simulations are used to calculate the reductions in the energy needs for cooling which can be achieved by specific retrofit actions (e.g. additions of effective solar protections, increased thermal insulation, day-time and nighttime mechanical ventilation, natural ventilation, low solar absorbance surfaces and others); also thermal comfort conditions in the analysed base cases are evaluated by using Fanger model and Adaptive ones, according to the european standard EN15251. Dynamic simulations also allow to evaluate the effects on energy consumptions of the interactions between several considered energy efficiency improvement action.
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