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The influence of secondary effects on global warming and cost optimization of insulation in the building envelope

Ylmén, Peter LU ; Mjörnell, Kristina LU ; Berlin, Johanna and Arfvidsson, Jesper LU (2017) In Building and Environment 118. p.174-183
Abstract

The relative environmental impact from the building construction phase is increasing compared to the operation phase for new buildings. Therefore, it is important to consider the complete environmental life cycle of energy improvement measures. Many advanced optimization methods have been developed in recent years to assess building life cycle impact. However, these previous studies have not fully addressed the secondary effects, in other words, indirect effects outside the actual design option. This may lead to conclusions of optimization studies based on misleading calculation results. The main purpose this study was to highlight the relevance of including secondary effects in optimization of building design with respect to global... (More)

The relative environmental impact from the building construction phase is increasing compared to the operation phase for new buildings. Therefore, it is important to consider the complete environmental life cycle of energy improvement measures. Many advanced optimization methods have been developed in recent years to assess building life cycle impact. However, these previous studies have not fully addressed the secondary effects, in other words, indirect effects outside the actual design option. This may lead to conclusions of optimization studies based on misleading calculation results. The main purpose this study was to highlight the relevance of including secondary effects in optimization of building design with respect to global warming potential and cost. This was done by conducting a parameter study of the building envelope insulation thickness with regard to global warming potential and life cycle costs, while considering secondary effects induced by the different design options. Findings from this study show that secondary effects influence the system boundary, algorithm architecture, results and the final conclusions of optimal building design. Omitting secondary effects can thus lead to incorrect decision on optimal solutions with regard to global warming potential and life cycle cost. Therefore, it is therefore important to take them into consideration when performing optimization studies of building design options.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Building envelope, Life cycle assessment, Life cycle cost, Optimization, Secondary effects
in
Building and Environment
volume
118
pages
10 pages
publisher
Elsevier
external identifiers
  • scopus:85016298996
  • wos:000401374600013
ISSN
0360-1323
DOI
10.1016/j.buildenv.2017.03.019
language
English
LU publication?
yes
id
8d9d6f27-7b51-48a2-bc05-bf1fdbc715ec
date added to LUP
2017-04-11 11:14:56
date last changed
2018-03-18 05:11:32
@article{8d9d6f27-7b51-48a2-bc05-bf1fdbc715ec,
  abstract     = {<p>The relative environmental impact from the building construction phase is increasing compared to the operation phase for new buildings. Therefore, it is important to consider the complete environmental life cycle of energy improvement measures. Many advanced optimization methods have been developed in recent years to assess building life cycle impact. However, these previous studies have not fully addressed the secondary effects, in other words, indirect effects outside the actual design option. This may lead to conclusions of optimization studies based on misleading calculation results. The main purpose this study was to highlight the relevance of including secondary effects in optimization of building design with respect to global warming potential and cost. This was done by conducting a parameter study of the building envelope insulation thickness with regard to global warming potential and life cycle costs, while considering secondary effects induced by the different design options. Findings from this study show that secondary effects influence the system boundary, algorithm architecture, results and the final conclusions of optimal building design. Omitting secondary effects can thus lead to incorrect decision on optimal solutions with regard to global warming potential and life cycle cost. Therefore, it is therefore important to take them into consideration when performing optimization studies of building design options.</p>},
  author       = {Ylmén, Peter and Mjörnell, Kristina and Berlin, Johanna and Arfvidsson, Jesper},
  issn         = {0360-1323},
  keyword      = {Building envelope,Life cycle assessment,Life cycle cost,Optimization,Secondary effects},
  language     = {eng},
  month        = {06},
  pages        = {174--183},
  publisher    = {Elsevier},
  series       = {Building and Environment},
  title        = {The influence of secondary effects on global warming and cost optimization of insulation in the building envelope},
  url          = {http://dx.doi.org/10.1016/j.buildenv.2017.03.019},
  volume       = {118},
  year         = {2017},
}