Prediction of dew condensation of windows with airflow

Daisuke Kawahara; Shinsuke Kato

doi:10.1016/j.egypro.2015.11.724

Prediction of dew condensation of windows with airflow

Daisuke Kawahara^*, Shinsuke Kato

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

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 language	English
Pages (from-to)	519-524
Number of pages	6
Journal	Energy Procedia
Volume	78
DOIs	https://doi.org/10.1016/j.egypro.2015.11.724
Publication status	Published - 2015 Nov 1
Externally published	Yes
Event	6th International Building Physics Conference, IBPC 2015 - Torino, Italy Duration: 2015 Jun 14 → 2015 Jun 17

Keywords

DI window
Dew condensation prediction
Dynamic insulation
Measurements
Thermal performance

ASJC Scopus subject areas

Energy(all)

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10.1016/j.egypro.2015.11.724

Cite this

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title = "Prediction of dew condensation of windows with airflow",

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.",

keywords = "DI window, Dew condensation prediction, Dynamic insulation, Measurements, Thermal performance",

author = "Daisuke Kawahara and Shinsuke Kato",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.; 6th International Building Physics Conference, IBPC 2015 ; Conference date: 14-06-2015 Through 17-06-2015",

year = "2015",

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day = "1",

doi = "10.1016/j.egypro.2015.11.724",

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TY - JOUR

T1 - Prediction of dew condensation of windows with airflow

AU - Kawahara, Daisuke

AU - Kato, Shinsuke

PY - 2015/11/1

Y1 - 2015/11/1

N2 - 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.

AB - 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.

KW - DI window

KW - Dew condensation prediction

KW - Dynamic insulation

KW - Measurements

KW - Thermal performance

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U2 - 10.1016/j.egypro.2015.11.724

DO - 10.1016/j.egypro.2015.11.724

M3 - Conference article

AN - SCOPUS:84962493917

SN - 1876-6102

VL - 78

SP - 519

EP - 524

JO - Energy Procedia

JF - Energy Procedia

T2 - 6th International Building Physics Conference, IBPC 2015

Y2 - 14 June 2015 through 17 June 2015

ER -

Prediction of dew condensation of windows with airflow

Abstract

Keywords

ASJC Scopus subject areas

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