Estimation of effect of injecting polyurethane foam into walls and renovating windows in houses in Japan up to 2020 study on reduction of greenhouse gases from renovating thermal insulation in houses

Kazuhiko Mizuta, Toshiharu Ikaga, Shuzo Murakami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This research describes the effects of injecting rigid polyurethane foam into walls and fitting double glazing or inner panes to sash windows as simple renovation methods for houses, based on estimations of CO 2 emissions from heating/cooling and LCCO 2 (Life Cycle CO 2). We estimated CO 2 emissions and LCCO 2 up to 2020 in Japan and obtained the following results. (1) Injecting rigid polyurethane foam into walls in detached houses, where there is little thermal insulation, reduces the LCCO 2 significantly. (2) In regions with mild climates like Tokyo, renovating windows brings higher LCCO 2 reductions in houses insulated to 1992 Criteria for the Rational Use of Energy in Houses 1) than in those insulated to conventional levels or the 1980 criteria. (3) When choosing one of the two methods above, we should take into account the initial insulation level, the house structure, and the region. (4) Domestic CO 2 emissions for houses in Japan can be reduced by 13% to 19% by 2020 with the use of simple renovation methods for thermal insulation.

Original languageEnglish
Title of host publicationIAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings
Subtitle of host publicationSustainable Built Environment
Pages17-24
Number of pages8
Publication statusPublished - 2007 Dec 1
Event6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007 - Sendai, Japan
Duration: 2007 Oct 282007 Oct 31

Publication series

NameIAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment
Volume1

Other

Other6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment, IAQVEC 2007
CountryJapan
CitySendai
Period07/10/2807/10/31

Keywords

  • Global warming
  • Life cycle assessment
  • Renovation
  • Thermal insulation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Fingerprint Dive into the research topics of 'Estimation of effect of injecting polyurethane foam into walls and renovating windows in houses in Japan up to 2020 study on reduction of greenhouse gases from renovating thermal insulation in houses'. Together they form a unique fingerprint.

  • Cite this

    Mizuta, K., Ikaga, T., & Murakami, S. (2007). Estimation of effect of injecting polyurethane foam into walls and renovating windows in houses in Japan up to 2020 study on reduction of greenhouse gases from renovating thermal insulation in houses. In IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment (pp. 17-24). (IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment; Vol. 1).