Introduction
Energy efficiency in buildings is a prime objective for energy policy at regional , national and international levels ( Perez-Lombard et al . 2008 ). Buildings have a massive potential for energy savings . Especially old school buildings have been objects of interests aimed towards energy renovations ( Butala and Novak 1999 ; IEA 1996 ).
Energy renovation of school buildings is very important task that requires consideration of both the indoor climate comfort and the energy saving potential . An energy efficient renovation of educational buildings collected by the United States ( US )’ s International Energy Agency ( IEA ) provided information on retrofit technologies , energy saving approaches and ventilation strategies ( IEA 1996 ; Zimmermann , 2011 ; Erhorn-Kluttig and Mørck 2005 ). Many national programs for school energy efficiency specify ways to improve their energy performance for low energy cost and sustainability , for example ( US EPA 2011 ; TEC 2015 ; CASH 2009 ; ENSIGHT 2009 ), together with trends toward low energy and green school buildings ( Eco-Schools 2015 ; Green-Schools , 2015 ). The recent project has been conducted within the European Union ( EU )’ s Seventh Framework Programme , School of the Future , and focused on zero emission with high performance indoor environment ( SF 2013 ). The aim of this project was to design , realize and communicate good examples of future high performance buildings . Both , the energy and the indoor environment performance of the demonstration buildings under different European climates will be greatly improved due to the holistic retrofits of building envelopes , their services , and the integration of renewables and management systems .
The guide to the sustainable design of schools ( Gelfand 2010 ) presents design principles for modern elementary and secondary school buildings , and campuses including the complete resource on performing sustainable renovations . They are in a good compliance with the main principles for energy efficient architectural design ( Gonzalo and Habermann 2002 ). Comprehensive research studies aimed at helping to achieve thermal comfort , ventilation rates and CO2 levels for Indoor Air Quality ( IAQ ) in school classrooms ( Chatzidiakou et al . 2015 ), also giving importance of the educational building design and renovation with respect to energy efficiency building design . High performance thermal insulation solutions have become one of the promising approaches to reducing energy consumption in buildings under a number of key research efforts related to decision making tools in building refurbishment projects and selected energy efficiency efforts in the built environment through a review completed on sustainable refurbishment by ( Gohardani and Björk 2012 ).
Methodology
This paper is presenting a study focusing on evaluation of thermal and daylight comfort in an existing school building selected as a case study . In the study , three different software packages are used for computer simulations and analyses of building physics . Software Teplo is dedicated to evaluation of overall heat loss coefficient of the building construction compositions and condensation regions for interstitial condensation ( Software Teplo 2011 ). Software Area is utilized for simulation of temperature distributions in 2D cross sectional details ( Software Area 2011 ). WDLS ( Windows Daylighting System ) software package is used for daylight factor simulations ( WDLS 2015 ). Computer simulations are presenting analysis of the optimized renovation concept in central European region locality and for the specified climatic conditions .
714 ZEMCH 2015 | International Conference | Bari - Lecce , Italy