dc.contributor.author | Hamdy, Mohamed | |
dc.date.accessioned | 2017-10-25T06:16:34Z | |
dc.date.available | 2017-10-25T06:16:34Z | |
dc.date.created | 2017-02-10T16:42:41Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Energy and Buildings. 2013, 56 189-203. | nb_NO |
dc.identifier.issn | 0378-7788 | |
dc.identifier.uri | http://hdl.handle.net/11250/2461968 | |
dc.description.abstract | Finding cost-optimal solutions towards nearly-zero-energy buildings (nZEBs) in accordance with European energy performance of buildings directive (EPBD-recast 2010) is a challenging task. It requires exploring a huge number of possible combinations of energy-saving measures (ESMs) and energy-supply systems including renewable energy sources (RESs), under a comparative framework methodology. The current study introduces efficient, transparent, and time-saving simulation-based optimization method for such explorations. The method is applied to find the cost-optimal and nZEB energy performance levels for a study case of a single-family house in Finland. Different options of building-envelope parameters, heat-recovery units, and heating/cooling systems as well as various sizes of thermal and photovoltaic solar systems are explored as design options via three-stage optimization. The resulted economic and environmental trade-offs show that primary energy consumption ≥93 and ≤103 kWh/m2a is a cost-optimal energy performance level. It is economically feasible to achieve nZEB with 70 kWh/m2a. However, incentives (e.g., energy credits) are required to reach lower-environmental-impact houses. Investing in low-operating-cost environmentally friendly heating system (e.g. ground source heat pump) is a key element for optimal solutions. The optimal implementation of ESMs and RES depends significantly on the installed heating/cooling system and the escalation rate of the energy price. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.title | A multi-stage optimization method for cost-optimal and nearly-zero-energy building solutions in line with the EPBD-recast 2010 | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.source.pagenumber | 189-203 | nb_NO |
dc.source.volume | 56 | nb_NO |
dc.source.journal | Energy and Buildings | nb_NO |
dc.identifier.doi | http://dx.doi.org/10.1016/j.enbuild.2012.08.023 | |
dc.identifier.cristin | 1449462 | |
dc.description.localcode | This article will not be available due to copyright restrictions (c) 2012 by Elsevier | nb_NO |
cristin.unitcode | 194,64,35,0 | |
cristin.unitname | Institutt for bygg, anlegg og transport | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |