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