The Feasibility of Improving the Accuracy of In Situ Measurements in the Air-Surface Temperature Ratio Method

Seo-Hoon Kim, Jung-Hun Lee, Jong-Hun Kim, Seung-Hwan Yoo and Hak-Geun Jeong
Additional contact information
Seo-Hoon Kim: Energy ICT∙ESS Laboratory, Korea Institute of Energy Research, Daejeon 34101, Korea
Jung-Hun Lee: Energy ICT∙ESS Laboratory, Korea Institute of Energy Research, Daejeon 34101, Korea
Jong-Hun Kim: Energy ICT∙ESS Laboratory, Korea Institute of Energy Research, Daejeon 34101, Korea
Seung-Hwan Yoo: Energy ICT∙ESS Laboratory, Korea Institute of Energy Research, Daejeon 34101, Korea
Hak-Geun Jeong: Energy ICT∙ESS Laboratory, Korea Institute of Energy Research, Daejeon 34101, Korea

Energies, 2018, vol. 11, issue 7, 1-18

Abstract: This paper reports on a feasibility study conducted to improve the in situ measurement accuracy of the air-surface temperature ratio (ASTR) method. The measured relative error rate was analyzed using the ISO 6946 [7.69 W/(m 2 ·K)] and Korea Energy Saving Design Standard [9.09 W/(m 2 ·K)] indoor total surface heat transfer coefficients. The relative error rate was analyzed according to fluctuations in outdoor temperature data. The relative error rate obtained using the ISO 6946 standard was analyzed about 6.3% and that obtained using the Korea Energy Saving Design Standard was about 9.5%. The relative error rate measured for outdoor temperature fluctuations of less than 1 K was about 4.62% and that for temperatures greater than 1 K was about 14.31%. The study results confirmed the cause of the error in the measurement of the ASTR. It was also found that the accuracy of the latter can be improved when the ISO 6946 indoor total surface heat transfer coefficient is applied and when outdoor temperature fluctuations less than 1 K are sampled and analyzed.

Keywords: air-surface temperature ratio; indoor total surface heat transfer coefficient; in situ measurement of U-value (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
https://www.mdpi.com/1996-1073/11/7/1885/pdf (application/pdf)
https://www.mdpi.com/1996-1073/11/7/1885/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:11:y:2018:i:7:p:1885-:d:158885

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().