Energy consumption and potential energy savings in old school buildings |
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| Affiliation: | 1. SINTEF Building and Infrastructure, 7491 Trondheim, Norway;2. EURAC, Institute for Renewable Energy, 39100 Bolzano, Italy;1. Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;2. Institute for Energy Systems, School of Engineering, The University of Edinburgh, Edinburgh EH9 3JL, United Kingdom;1. Building Environment & Materials Lab, School of Architecture, Soongsil University, Seoul 156-743, Republic of Korea;2. Centre for sustainable Architecture and Building System Research, School of Architecture, Chung-Ang University, Seoul 156-756, Republic of Korea;1. Building, Energy & Environment Research Group, Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK;2. School Energy Efficiency CIC, Chair of Governors, FHA Ladybrook, UK;3. Department of Architecture & Built Environment, Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK |
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| Abstract: | Energy and indoor environmental audits of energy consumption and indoor air quality were taken in 24 school buildings in Slovenia. The audits show that these buildings are high energy consumers and have poor indoor air quality, as expressed by 60% of the surveyed pupils. This article deals with energy consumption in the analysed schools. The nominal heating power of boilers, and heat exchangers, which are used in district heating, show a 57% overcapacity. The heat losses of the school buildings are 89% higher than the recommended values. According to our analysis of the possible measures to improve the situation in the school buildings, it will not be possible to ensure rational energy use and good indoor air quality with low investment costs. Should we change from hot-water heating systems and natural ventilation to energy efficient blown air systems with which one device provides the comfort of both heating and air conditioning? |
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