Prediction of dew condensation of windows with airflow

Daisuke Kawahara, Shinsuke Kato

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Thermal insulating performance of windows is often poor. Thus, effective windows are important for sustainable buildings. In this study, we propose using a dynamic insulation (DI) window that uses indispensable ventilation effectively. The principle of the DI system is that airflow opposite to the direction of heat loss recovers part of the heat that would be lost. Another merit of DI windows is that they decrease the risk of dew condensation. In this paper, we report evaluation of humidity using a non-dimensional index: humidity index (HI), and dew condensation frequency for DI window frames, at several locations in Japan.

Original languageEnglish
Pages (from-to)519-524
Number of pages6
JournalEnergy Procedia
Volume78
DOIs
Publication statusPublished - 2015 Nov 1
Externally publishedYes
Event6th International Building Physics Conference, IBPC 2015 - Torino, Italy
Duration: 2015 Jun 142015 Jun 17

Keywords

  • Dew condensation prediction
  • DI window
  • Dynamic insulation
  • Measurements
  • Thermal performance

ASJC Scopus subject areas

  • Energy(all)

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