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ISSN 2029-7092 online
ISBN 978-609-457-690-4 CD
ISBN 978-609-457-640-9
Energy for Buildings

Kęstutis Valančius, Vilūnė Lapinskienė

Heat gains utilisation and system efficiency influence to the heat demand of a building heating

Conference Information: 9th International Conference on Environmental Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA
Source: ICEE-2011 - International Conference on Environmental Engineering
Book Series: International Conference on Environmental Engineering (ICEE) Selected papers
ISSN: ISSN 2029-7092 online
ISBN: 978-609-457-640-9 / 978-609-457-690-4 CD
Year: 2014
Publisher: Vilnius Gediminas Technical University Press Technika

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Experience shows that often theoretical heat demand and real building heat use varies, and in some cases a significant percentage. This can be explained by the fact that the identification methods of rooms’ heat demand are inaccurate or incorrect use. One issue for discussion is the building's heat gain use size of the overall balance of the building's energy needs. Currently, both legal instruments and computer tools take the heat gains use 100% or nearly for building heat needs to cover what in the real building is almost impossible to achieve because of heating system efficiency.

Keywords: heat gain utilization; building; heating; demand.

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