Call number:
ZSP-201-82/38
In:
CRREL Report, 82-38
Description / Table of Contents:
Extreme cold causes heavy buildup of frost, ice and condensation on many windows. It also increases the incentive for improving the airtightness of windows against heat loss. Our study shows that tightening specifications for Alaskan windows to permit only 30% of the air leakage allowed by current American airtightness standards is economically attractive. We also recommend triple glazing in much of Alaska to avoid window icing in homes and barracks. We base our conclusions on a two-year field study of Alaskan military bases that included recording humidity and temperature data, observing moisture accumulation on windows and measuring airtightness with a fan pressurization device.
Type of Medium:
Series available for loan
Pages:
v, 26 Seiten
,
Illustrationen
Series Statement:
CRREL Report 82-38
URL:
https://apps.dtic.mil/docs/citations/ADA124528
URL:
https://hdl.handle.net/11681/9333
Language:
English
Note:
Contents
Abstract
Preface
Nomenclature
Introduction
Previous work in cold weather window performance
Investigation
Data acquisition and analysis
Modeling the window thermal regime
Moisture and ice observations
Airtightness testing and analysis
Annual heat loss from air leakage
Results and conclusions
Moisture on windows
Airtightness
Airtightness economics
Recommendations for windows in extreme cold
Airtightness
Multiple glazing
Literature cited
Appendix A: Moisture levels and airtightness
Appendix B: Dewpoint data
Appendix C: Sample observations of icing
Location:
AWI Archive
Branch Library:
AWI Library
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