building stock; energy efficiency; building renovation; thermal comfort
Abstract :
[en] Indoor thermal environment monitoring has been done in 20 residential buildings of Liege city followed by questionnaire based comfort survey amongst the occu- pants of 85 houses in order to record their preference and expectations about in- door thermal environment in winter and spring season. It is found from the anal- ysis that change of glazing has a minimum or even sometimes an adverse effect on the existing indoor environment due to the absence of proper insulation of the rest of the building envelope. It is observed that in winter there is a sudden drop in indoor temperature and also overheating in summer. This is due to unplanned installation of glazing which actually increases the fenestration area ratio lead- ing to higher indoor temperature fluctuation and causes discomfort. It is also im- portant that the occupant’s preference and expectations as well as overall as- sessment of indoor environment needs to be consider towards energy efficiency improvement.
Salat, S., Energy Loads, CO2Emissions and Building Stocks: Morphologies, Typologies, Energy Systems and Behaviour, Building Research and Information, 37 (2009), 5-6, pp. 598-609.
Carvalho, M. da G., EU Energy and Climate Change Strategy, Energy, 40 (2012),1, pp. 19-22.
Nicol, F., Stevenson F., Adaptive Comfort in an Unpredictable World, Building Research and Information, 41 (2013), 3, pp. 255-258.
Singh, M. K., et al., Thermal Performance Study and Evaluation of Comfort Temperatures in Vernacular Buildings of North-East India, Building and Environment, 45 (2010), 2, pp. 320-329.
Singh, M. K., et al., Adaptive Thermal Comfort Model for Different Climatic Zones of North-East India, Applied Energy, 88 (2011), 7, pp. 2420-2428.
Singh, M. K., et al., Thermal Monitoring and Indoor Temperature Modeling in Vernacular Buildings of North-East India, Energy and Buildings, 42 (2010), 10, pp. 1610-1618.
de Meester, T., et al., Impact of Occupants Behaviours on Residential Heating Consumption for Detached Houses in a Temperate Climate in the Northern Part of Europe, Energy and Buildings, 57 (2013), 2, pp. 313-323.
Dujardin, S., et al., Spatial Planning as a Driver of Change in Mobility and Residential Energy Consumption, Energy and Buildings, 68 (2014), C, pp. 779-785.
Reiter, S., Marique, A. F., Towards Low Energy Cities: A Case Study of the Urban Area of Liege, Journal of International Ecology, 16 (2012), 6, pp. 829-838.
Fracastoro, G. V., Serraino, M., A Methodology for Assessing the Energy Performance of Large Scale Building Stocks and Possible Applications, Energy and Buildings, 43 (2011), 4, pp. 844-852.
Bradley, P. E., Kohler, N., Methodology for the Survival Analysis of Urban Building Stocks, Building Research and Information, 35 (2007), 5, pp. 529-542.
Bradley, P. E., Kohler, N., Directive 2010/31/EU of the Parliament and of the Council of 19 May 2010 on the Energy Performance of Buildings (recast), Official Journal of the European Communities L 153/13 (2010).
Singh, M. K., et al., An Analysis on Energy Efficiency Initiatives in the Building Stock of Liege, Belgium, Energy Policy, 62 (2013), 11, pp. 729-741.
Kohler, N., Hassler, U., The Building Stock as a Research Object, Building Research and Information, 30 (2002), 4, pp. 226-236.
Georgiadu, M. C., et al., A Conceptual Framework for Future Proofing the Energy Performance of Buildings, Energy Policy, 47 (2012), 8, pp. 145-155.
Bradley, P. E., Kohler, N., Methodology for the Survival Analysis of Urban Building Stocks, Building Research and Information, 35 (2007), 5, pp. 529-542.
Anisimova, N., The Capability to Reduce Primary Energy Demand in EU Housing, Energy and Buildings, 43 (2011), 10, pp. 2747-2751.
Huizenga, C., et al., Window Performance for Human Thermal Comfort, CBE, University of California, Berkeley, Cal., USA, 2006.
Lomas, K. J., Kane, T., Summer Time Temperature and Thermal Comfort in UK Homes, Adaptive Comfort in an Unpredictable World, Building Research and Information, 41 (2013), 3, pp. 259-280.
Lomas, K. J., Kane, T., EN 15251, Indoor Environmental Input Parameters for Design and Assessment of Energy Performance of Buildings Addressing Indoor Air Quality, Thermal Environment, Lighting and Acoustics. CEN, Brussels, Belgium, 2007.
Lomas, K. J., Kane, T., ASHRAE Standard 55-2010, Thermal Environment Conditions for Human Occupancy, ASHRAE, Atlanta, Geo., USA.
