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Wood stove combustion air retrofits: a low cost way to increase energy savings in dwellings
Danish Building Research Institute, Aalborg University, Copenhagen, Denmark; Centre for Environmental and Marine Studies, University of Aveiro, Campus Universitário de Santiago, Portugal. (Thermochemical Energy Conversion Laboratory)ORCID-id: 0000-0002-6521-4160
(Centre of Environment and Marine Studies (University of Aveiro))ORCID-id: 0000-0002-4279-3569
(Centre of Environment and Marine Studies (University of Aveiro))ORCID-id: 0000-0003-0385-5621
(Danish Building Research Institute)ORCID-id: 0000-0002-7112-6474
2018 (engelsk)Inngår i: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 164, s. 140-152Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In Europe, wood-fired stoves remain as major renewable household heating and emission sources. This study focused on improving the performance of a wood stove (natural draft) traditionally used in Portugal by the adoption of alternative combustion air retrofits. Additionally, the performance of a new pellet stove (forced-air) was determined to investigate the highest achievable goal for solid-fuel stoves. In the wood stove, an outer chimney component was installed around the existing chimney to allow the vertical admission of outdoor air that was preheated before entering the combustion chamber. This measure increased the thermal efficiency of the wood stove from 62% to up to 79%. Another component was used to administrate secondary air to the wood stove reducing the carbon monoxide emissions by 39% to 2808 mg Nm−3. The two retrofits enhanced a more stable heat release from the wood stove, which reached a thermal efficiency 11% lower than that achieved by the pellet stove. This research suggests that retrofitting stoves with chimney components that allow the admission of combustion air can substantially increase energy savings in dwellings. Further efforts should focus on improving the interplay between the outdoor air and secondary air admission to achieve higher emission reductions at low-cost.

sted, utgiver, år, opplag, sider
Elsevier, 2018. Vol. 164, s. 140-152
Emneord [en]
Wood stoves, chimney components, combustion air admission, energy performance, thermal efficiency, emission reductions
HSV kategori
Forskningsprogram
biologi, miljövetenskap
Identifikatorer
URN: urn:nbn:se:umu:diva-148315DOI: 10.1016/j.enbuild.2018.01.002ISI: 000428492700013OAI: oai:DiVA.org:umu-148315DiVA, id: diva2:1212658
Prosjekter
AIRUSE – Testing and development of air quality mitigation measures in Southern Europe, LIFE 11 ENV/ES/000584Tilgjengelig fra: 2018-06-03 Laget: 2018-06-03 Sist oppdatert: 2018-11-23bibliografisk kontrollert

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Carvalho, RicardoVicente, EstelaTarelho, LuísJensen, Ole Michael
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