Reliability Field Test of the Air–Surface Temperature Ratio Method for In Situ Measurement of U-Values

Reliability Field Test of the Air–Surface Temperature Ratio Method for In Situ Measurement of U-Values

This study proposes the air–surface temperature ratio (ASTR) method as an in situ measurement method to rapidly and accurately measure wall U-values in existing houses. Herein, the wall U-values were measured in situ applying the heat flow meter (HFM) method of ISO 9869-1 and the ASTR method. The re...

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Bibliographic Details
Main Authors: Seo-Hoon Kim, Jong-Hun Kim, Hak-Geun Jeong, Kyoo-Dong Song
Format: Article
Language:English
Published: MDPI AG 2018-03-01
Series:Energies
Subjects:
energy retrofitting of existing houses
U-value
heat transfer coefficient
quasi-steady state
in situ
Online Access:http://www.mdpi.com/1996-1073/11/4/803

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