Primary energy consumption of the dwelling with solar hot water system and biomass boiler

Berković-Šubić, Mihaela and Rauch, Martina and Dović, Damir and Andrassy, Mladen (2014) Primary energy consumption of the dwelling with solar hot water system and biomass boiler. = Primary energy consumption of the dwelling with solar hot water system and biomass boiler. Energy Conversion and Management, 87. pp. 1151-1161. ISSN 0196-8904. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2013). Točan broj autora: 4.

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Abstract

This paper presents a new methodology, based on the energy performance of buildings Directive related European norms. It is developed to overcome ambiguities and incompleteness of these standards in determining the delivered and primary energy. The available procedures from the present "Algorithm for determining the energy demands and efficiency of technical systems in buildings", normally used for energy performance certification of buildings, also allow detailed analyzes of the influence of particular system components on the overall system energy efficiency. The calculation example is given for a Croatian reference dwelling, equipped with a solar hot water system, backed up with a biomass boiler for space heating and domestic hot water purposes as a part of the dwelling energy performance certification. Calculations were performed for two cases corresponding to different levels of the dwelling thermal insulation with an appropriate heating system capacity, in order to investigate the influence of the building heat losses on the system design and energy consumption. The results are compared against those obtained for the conventional system with a gas boiler in terms of the primary energy consumption as well as of investment and operating costs. These results indicate great reduction in both delivered and primary energy consumption when a solar system with biomass boiler is used instead of the conventional one. Higher savings are obtained in the case of the dwelling with higher energy need for space heating. Such dwellings also have a shorter payback period than the ones with better thermal insulation. © 2014 Elsevier Ltd.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Biomass boiler; Energy performance certification; Payback period; Primary energy; Solar hot water system
Subjects: TECHNICAL SCIENCE
Divisions: 300 Department of Thermodynamics, Thermal and Process Engineering > 320 Chair of Thermal and Process Engineering
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2013)
Date Deposited: 25 May 2015 13:58
Last Modified: 08 Feb 2017 07:33
URI: http://repozitorij.fsb.hr/id/eprint/4284

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