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State of Knowledge of Thermal Bridges—A Follow up in Sweden and a Review of Recent Research

Berggren, Björn LU and Wall, Maria LU (2018) In Buildings 8(11).
Abstract
It is important to minimize transmission heat transfer losses through the building envelope when designing and building energy efficient buildings in heating dominated climates. In such a climate, a large part of the space heating demand is caused by transmission heat transfer losses through the building envelope. Calculations of these losses must be carried out in a correct way to ensure a properly sized heating system and a good indoor climate. Furthermore, underestimating the transmission heat transfer may lead to energy costs that exceed expectations. A Swedish study was published five years ago which concluded that the state of knowledge was low and simplified methods used were not accurate. Five years has passed since the previous... (More)
It is important to minimize transmission heat transfer losses through the building envelope when designing and building energy efficient buildings in heating dominated climates. In such a climate, a large part of the space heating demand is caused by transmission heat transfer losses through the building envelope. Calculations of these losses must be carried out in a correct way to ensure a properly sized heating system and a good indoor climate. Furthermore, underestimating the transmission heat transfer may lead to energy costs that exceed expectations. A Swedish study was published five years ago which concluded that the state of knowledge was low and simplified methods used were not accurate. Five years has passed since the previous study. The purpose of this follow-up is to investigate whether the state of knowledge among Swedish consultants has increased and to review the progress within the international field. The study shows that little has changed in Sweden. The state of knowledge regarding different measuring methods and the effect on thermal bridges is still not satisfying. Furthermore, the review of recent research shows that the relative effect of thermal bridges vary greatly. More guidelines and education/training are needed. Further research should be carried out with a holistic approach where thermal bridges are investigated with varying construction types, energy efficiency of building envelopes and different measuring methods (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
thermal bridges, Transmission heat transfer, Dimensions, Buildings, Sweden, Review
in
Buildings
volume
8
issue
11
publisher
MDPI AG
external identifiers
  • scopus:85057032080
ISSN
2075-5309
DOI
10.3390/buildings8110154
language
English
LU publication?
yes
id
ac8dc369-1b9a-446c-bf04-913d54465e2b
date added to LUP
2018-11-22 13:02:37
date last changed
2019-05-24 13:58:34
@article{ac8dc369-1b9a-446c-bf04-913d54465e2b,
  abstract     = {It is important to minimize transmission heat transfer losses through the building envelope when designing and building energy efficient buildings in heating dominated climates. In such a climate, a large part of the space heating demand is caused by transmission heat transfer losses through the building envelope. Calculations of these losses must be carried out in a correct way to ensure a properly sized heating system and a good indoor climate. Furthermore, underestimating the transmission heat transfer may lead to energy costs that exceed expectations. A Swedish study was published five years ago which concluded that the state of knowledge was low and simplified methods used were not accurate. Five years has passed since the previous study. The purpose of this follow-up is to investigate whether the state of knowledge among Swedish consultants has increased and to review the progress within the international field. The study shows that little has changed in Sweden. The state of knowledge regarding different measuring methods and the effect on thermal bridges is still not satisfying. Furthermore, the review of recent research shows that the relative effect of thermal bridges vary greatly. More guidelines and education/training are needed. Further research should be carried out with a holistic approach where thermal bridges are investigated with varying construction types, energy efficiency of building envelopes and different measuring methods},
  articleno    = {154},
  author       = {Berggren, Björn and Wall, Maria},
  issn         = {2075-5309},
  keyword      = {thermal bridges,Transmission heat transfer,Dimensions,Buildings,Sweden,Review},
  language     = {eng},
  month        = {11},
  number       = {11},
  publisher    = {MDPI AG},
  series       = {Buildings},
  title        = {State of Knowledge of Thermal Bridges—A Follow up in Sweden and a Review of Recent Research},
  url          = {http://dx.doi.org/10.3390/buildings8110154},
  volume       = {8},
  year         = {2018},
}