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- Dahlblom, Mats, et al.
(författare)
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Vertical temperature gradients in apartments with hydronic radiator heating
- 2019
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Ingår i: Cold Climate HVAC 2018 : Sustainable Buildings in Cold Climates - Sustainable Buildings in Cold Climates. - Cham : Springer International Publishing. - 9783030006617 - 9783030006624 ; , s. 575-585
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Konferensbidrag (refereegranskat)abstract
- A vertical temperature stratification normally exists in rooms during the heat-ing season in cold climates. An expression of the gradient in apartments heated by hydronic radiator heating systems with exhaust ventilation has ear-lier been developed assuming a dependency of the outdoor temperature. The expression was used by a public real estate owner when re-calculating meas-ured indoor temperature at 2.1 m above floor to 1.2 m above floor represent-ing the occupancy zone and used for individual metering and billing of space heating cost. To validate the suggested expression temperature measurements have been made at four heights in living rooms in apartments built in the 70’s. The heights includes 0.0, 0.1, 1.1 and 1.7 m above floor. The theoreti-cal expression has been compared to the full-scale measurements and in general the expression overestimates the vertical temperature gradient. The measured gradients are generally very low. The thermal comfort in the aspect of vertical temperature gradient is good for the studied period.
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| 2. |
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| 3. |
- Arfvidsson, Jesper, et al.
(författare)
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Fukthandbok : Praktik och teori
- 2017. - 4
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Ingår i: Fukthandbok : Praktik och teori - Praktik och teori. - 9789173338233 - 9789173338530
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 4. |
- Arfvidsson, Jesper, et al.
(författare)
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Fuktsäkerhet i kalla vindsutrymmen
- 2005
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Ingår i: Bygg & teknik. - 0281-658X. ; :Nummer 4/05, s. 12-16
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 5. |
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| 6. |
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| 7. |
- Arfvidsson, Jesper, et al.
(författare)
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Moisture Safety in Cold Attics
- 2005
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Ingår i: Civil Engineering ´05. International scientific conference, Proceedings. - 998419745X ; , s. 165-173
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Konferensbidrag (refereegranskat)
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| 8. |
- Arfvidsson, Jesper, et al.
(författare)
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Tätskikt i våtrum
- 2005
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Rapport (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Bengtsson, Mathilda, et al.
(författare)
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Metoden ByggF-PST : Tillämpning av ByggaF på tillverkning av prefabricerade småhus i trä. Version 1.0
- 2018
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Metoden som presenteras i detta dokument är en tillämpning av ByggaF påprefabricerad småhustillverkning av hus med träbaserad stomme kallad:”ByggaF för Prefabricerade småhus med trästomme”, hädanefter omnämnd somByggaF-PST. ByggaF-PST är en metod som säkerställer, dokumenterar ochkommunicerar fuktsäkerheten i hela byggprocessen, från planering tillbruksskede. Metoden innebär ett arbetssätt för att uppfylla samhällets krav påfuktsäkerhet och innehåller rutiner och hjälpmedel för alla aktörer, frånsmåhustillverkare, konsulter, materialleverantörer och entreprenörer.
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| 10. |
- Ekberg, Olle, et al.
(författare)
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Investigating the presence of mold in wood treated with chlorophenol
- 2020
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Ingår i: 12th Nordic Symposium on Building Physics (NSB 2020). - : EDP Sciences. - 2555-0403. ; 172
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Konferensbidrag (refereegranskat)abstract
- A common moisture-related problem in Sweden and other countries, is mold odor indoors. The general perception is that mold odor indicates hazardous hidden mold. However, some grey literature studies indicate that the source of mold odor might not be substantial amounts of mold, but rather chloroanisoles (CAs) which are biomethylated from chlorophenols (CPs) in moist conditions. Products containing CPs were commonly used world-wide as wood preservatives in the 1960-70s and problems with indoor mold odor have been reported in buildings where such products have been used. In Sweden, one of the main uses of CPs in buildings was in wooden constructions exposed to big moisture loads, such as sill plates and crawl space ceilings. Here we aimed to determine the potential presence and level of mold growth on wood treated with CPs in one school building with reported odor problems built in the stated time period. Odorous wooden samples were taken and analyzed for mold growth. No mold was detected by the naked eye, but some growth was seen using a microscope. We presently investigate more schools and samples, but so far our results question that mold odor depends on substantial amounts of mold.
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