Increasing efficiency and decreasing CO-emissions for a combined solar and wood pellet heating system for single-family houses
Document identifier: oai:dalea.du.se:2106
Keyword: Engineering and Technology,
Other Engineering and Technologies,
Other Engineering and Technologies not elsewhere specified,
Teknik och teknologier,
Annan teknik,
Övrig annan teknik,
Boilers,
Efficiency,
Emissions,
Emission reductionPublication year: 2006Relevant Sustainable Development Goals (SDGs):

The SDG label(s) above have been assigned by OSDG.aiAbstract: This study focus on how wood pellets and solar heating systems for single-family houses should be designed and controlled to reach high efficiency and to reduce the CO-emissions. A recently developed TRNSYS model was used to simulate the wood pellet boiler. Parameters for the model were identified from laboratory measurements on a boiler. A detailed simulation model of a complete solar combisystem was created and annual simulations were performed. Assuming that all heat losses to the room are waist heat, the results show that the most important factors to achieve high system efficiency are that the boiler and the buffer store should be well insulated. The sensor controlling the boiler should be placed in the store; the pump between the boiler and the store should only be in operation together with the burner and for some time after the burner have stopped to take care of the after burning heat. For boilers with relatively large start and stop CO-emissions modulating power may be an efficient measure to reduce CO-emissions. Especially for boilers using an ON-OFF control, the dominating contribution of CO-emissions may be during the start and stop phases, thus reducing emissions during operation may have little influence on the annual CO-emissions.
Authors
Tomas Persson
Högskolan Dalarna; Miljöteknik
Other publications
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Frank Fiedler
Högskolan Dalarna; Miljöteknik
Other publications
>>
Mats Rönnelid
Högskolan Dalarna; Miljöteknik
Other publications
>>
Chris Bales
Högskolan Dalarna; Miljöteknik
Other publications
>>
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header:
identifier: oai:dalea.du.se:2106
datestamp: 2021-04-15T14:31:33Z
setSpec: SwePub-du
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version: 3.7
recordInfo:
recordContentSource: du
recordCreationDate: 2006-05-16
identifier: http://urn.kb.se/resolve?urn=urn:nbn:se:du-2106
titleInfo:
@attributes:
lang: eng
title: Increasing efficiency and decreasing CO-emissions for a combined solar and wood pellet heating system for single-family houses
abstract: This study focus on how wood pellets and solar heating systems for single-family houses should be designed and controlled to reach high efficiency and to reduce the CO-emissions. A recently developed TRNSYS model was used to simulate the wood pellet boiler. Parameters for the model were identified from laboratory measurements on a boiler. A detailed simulation model of a complete solar combisystem was created and annual simulations were performed. Assuming that all heat losses to the room are waist heat the results show that the most important factors to achieve high system efficiency are that the boiler and the buffer store should be well insulated. The sensor controlling the boiler should be placed in the store; the pump between the boiler and the store should only be in operation together with the burner and for some time after the burner have stopped to take care of the after burning heat. For boilers with relatively large start and stop CO-emissions modulating power may be an efficient measure to reduce CO-emissions. Especially for boilers using an ON-OFF control the dominating contribution of CO-emissions may be during the start and stop phases thus reducing emissions during operation may have little influence on the annual CO-emissions.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Other Engineering and Technologies
Other Engineering and Technologies not elsewhere specified
@attributes:
lang: swe
authority: uka.se
topic:
Teknik och teknologier
Annan teknik
Övrig annan teknik
@attributes:
lang: eng
topic: Boilers
@attributes:
lang: eng
topic: efficiency
@attributes:
lang: eng
topic: emissions
@attributes:
lang: eng
topic: emission reduction
language:
languageTerm: eng
genre:
conference/other
vet
note:
Published
4
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Persson
Tomas
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roleTerm: aut
affiliation:
Högskolan Dalarna
Miljöteknik
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Fiedler
Frank
role:
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affiliation:
Högskolan Dalarna
Miljöteknik
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type: personal
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namePart:
Rönnelid
Mats
role:
roleTerm: aut
affiliation:
Högskolan Dalarna
Miljöteknik
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Chris
role:
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affiliation:
Högskolan Dalarna
Miljöteknik
nameIdentifier: cba
originInfo:
dateIssued: 2006
place:
placeTerm: Jönköping Sweden
relatedItem:
@attributes:
type: host
titleInfo:
title: Proc. on USB of Pellets 2006 30 May - 1 June Jönköping Sweden
location:
url: http://du.diva-portal.org/smash/get/diva2:521613/FULLTEXT01.pdf
accessCondition: gratis
physicalDescription:
form: electronic
typeOfResource: text