About: Efficiency of internal heat gains in passive houses

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Main part of heat gains in passive houses are due to direct solar radiation while the remaining 30 percent are generated by electrical devices and by occupants themselves. In a particular room the power can rise up to thousands of watts, compared to mere 100 watts of heat losses. Do we know how to utilize such a high power? The timing of the heat gains is usually rather unpredictable and does not correlate with the heat losses. In the course of winter, heat losses and internal gains are typically very well-balanced; however, it is impossible to make use of the gains from direct solar radiation at the time. In order to maximize utilization of the heat gains, energy can be accumulated in building materials or in Phase Change Material (PCM). In calculations, a utilization coefficient of solar gains efficiency of 0.9 is used; nevertheless, the efficiency in a real passive house is usually lower. Main part of heat gains in passive houses are due to direct solar radiation while the remaining 30 percent are generated by electrical devices and by occupants themselves. In a particular room the power can rise up to thousands of watts, compared to mere 100 watts of heat losses. Do we know how to utilize such a high power? The timing of the heat gains is usually rather unpredictable and does not correlate with the heat losses. In the course of winter, heat losses and internal gains are typically very well-balanced; however, it is impossible to make use of the gains from direct solar radiation at the time. In order to maximize utilization of the heat gains, energy can be accumulated in building materials or in Phase Change Material (PCM). In calculations, a utilization coefficient of solar gains efficiency of 0.9 is used; nevertheless, the efficiency in a real passive house is usually lower. (en)
Title	Efficiency of internal heat gains in passive houses Efficiency of internal heat gains in passive houses (en)
skos:prefLabel	Efficiency of internal heat gains in passive houses Efficiency of internal heat gains in passive houses (en)
skos:notation	RIV/00216305:26110/09:PU83486!RIV10-GA0-26110___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA103/07/0907)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Kalousek, Miloš
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta stavební
http://linked.open...dnocenehoVysledku	312496
http://linked.open...ai/riv/idVysledku	RIV/00216305:26110/09:PU83486
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	heat gains, passive house, energy, comfort (en)
http://linked.open.../riv/klicoveSlovo	comfort passive house energy heat gains
http://linked.open...ontrolniKodProRIV	[AB7014D4331A]
http://linked.open...v/mistoKonaniAkce	Bratislava
http://linked.open...i/riv/mistoVydani	Bratislava
http://linked.open...i/riv/nazevZdroje	Zborník přednášek z medzinárodnej konfeencie BODOVY A PROSTREDIE 2009
http://linked.open...in/vavai/riv/obor	JN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Solar chimneys and phase-change materials for passive cooling of buildings
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Kalousek, Miloš
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2009-10-27 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	STU - Vydavatelsvo STU
https://schema.org/isbn	978-80-227-3180-5
http://localhost/t...ganizacniJednotka	26110

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