Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements

Petteri Huttunen; Juha Vinha

doi:10.1007/978-981-19-9822-5_75

Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements

Petteri Huttunen^*
, Juha Vinha

^*Corresponding author for this work

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

27 Downloads (Pure)

Abstract

A Finnish-German collaborative project was carried out in 2018–2020 with the objective to investigate the accuracy and reliability of a novel metering device for in-situ determination of U-values of envelope structures. A rapid and reliable in-situ measurement method would clearly be a desirable tool for surveying the actual energy performance of existing buildings. Series of experimental and computational studies around a novel measurement device were carried out in Rapid U project. Rapidness of the measurement is sought by scheduling the moment of measurement so that the outdoor temperature has been sufficiently stable and cold before the measurement. Several test building measurements were carried out for certain structures in real weather conditions. Numerical modelling was also used to estimate the total number of hours in a year when the conditions are theoretically possible for similar structures to be measured rapidly. Repeated test building measurements showed unfortunately significant variation in the results. However, on average the results were promising and according to the simulations there should be plenty of suitable hours per year for rapid U-value measurement in cold countries if certain error tolerance is allowed.

Original language	English
Title of host publication	Proceedings of the 5th International Conference on Building Energy and Environment
Editors	Liangzhu Leon Wang, Hua Ge, Mohamed Ouf, Zhiqiang John Zhai, Dahai Qi, Chanjuan Sun, Dengjia Wang
Publisher	Springer
Pages	703-711
Number of pages	9
ISBN (Electronic)	978-981-19-9822-5
ISBN (Print)	978-981-19-9821-8
DOIs	https://doi.org/10.1007/978-981-19-9822-5_75
Publication status	Published - 2023
Publication type	A4 Article in conference proceedings
Event	International Conference on Building Energy and Environment (COBEE) - Montreal, Canada Duration: 25 Jul 2022 → 29 Jul 2022

Publication series

Name	Environmental Science and Engineering
ISSN (Print)	1863-5520
ISSN (Electronic)	1863-5539

Conference

Conference	International Conference on Building Energy and Environment (COBEE)
Country/Territory	Canada
City	Montreal
Period	25/07/22 → 29/07/22

Keywords

In-situ measurement
Thermal transmittance
U-value

Publication forum classification

Publication forum level 2

ASJC Scopus subject areas

Environmental Engineering
Information Systems

Access to Document

10.1007/978-981-19-9822-5_75

Overview of a research project
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Accepted author manuscript, 448 KBLicence: Unspecified

https://urn.fi/URN:NBN:fi:tuni-202401111355Licence: Unspecified

Cite this

Huttunen, P., & Vinha, J. (2023). Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements. In L. L. Wang, H. Ge, M. Ouf, Z. J. Zhai, D. Qi, C. Sun, & D. Wang (Eds.), Proceedings of the 5th International Conference on Building Energy and Environment (pp. 703-711). (Environmental Science and Engineering). Springer. https://doi.org/10.1007/978-981-19-9822-5_75

Huttunen, Petteri ; Vinha, Juha. / Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements. Proceedings of the 5th International Conference on Building Energy and Environment. editor / Liangzhu Leon Wang ; Hua Ge ; Mohamed Ouf ; Zhiqiang John Zhai ; Dahai Qi ; Chanjuan Sun ; Dengjia Wang. Springer, 2023. pp. 703-711 (Environmental Science and Engineering).

@inproceedings{582e4d8bc4d34992aa73c12ebd79f1fe,

title = "Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements",

abstract = "A Finnish-German collaborative project was carried out in 2018–2020 with the objective to investigate the accuracy and reliability of a novel metering device for in-situ determination of U-values of envelope structures. A rapid and reliable in-situ measurement method would clearly be a desirable tool for surveying the actual energy performance of existing buildings. Series of experimental and computational studies around a novel measurement device were carried out in Rapid U project. Rapidness of the measurement is sought by scheduling the moment of measurement so that the outdoor temperature has been sufficiently stable and cold before the measurement. Several test building measurements were carried out for certain structures in real weather conditions. Numerical modelling was also used to estimate the total number of hours in a year when the conditions are theoretically possible for similar structures to be measured rapidly. Repeated test building measurements showed unfortunately significant variation in the results. However, on average the results were promising and according to the simulations there should be plenty of suitable hours per year for rapid U-value measurement in cold countries if certain error tolerance is allowed.",

keywords = "In-situ measurement, Thermal transmittance, U-value",

author = "Petteri Huttunen and Juha Vinha",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.; International Conference on Building Energy and Environment (COBEE) ; Conference date: 25-07-2022 Through 29-07-2022",

year = "2023",

doi = "10.1007/978-981-19-9822-5\_75",

language = "English",

isbn = "978-981-19-9821-8",

series = "Environmental Science and Engineering",

publisher = "Springer",

pages = "703--711",

editor = "Wang, \{Liangzhu Leon\} and Hua Ge and Mohamed Ouf and Zhai, \{Zhiqiang John\} and Dahai Qi and Chanjuan Sun and Dengjia Wang",

booktitle = "Proceedings of the 5th International Conference on Building Energy and Environment",

}

Huttunen, P & Vinha, J 2023, Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements. in LL Wang, H Ge, M Ouf, ZJ Zhai, D Qi, C Sun & D Wang (eds), Proceedings of the 5th International Conference on Building Energy and Environment. Environmental Science and Engineering, Springer, pp. 703-711, International Conference on Building Energy and Environment (COBEE), Montreal, Canada, 25/07/22. https://doi.org/10.1007/978-981-19-9822-5_75

Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements. / Huttunen, Petteri; Vinha, Juha.
Proceedings of the 5th International Conference on Building Energy and Environment. ed. / Liangzhu Leon Wang; Hua Ge; Mohamed Ouf; Zhiqiang John Zhai; Dahai Qi; Chanjuan Sun; Dengjia Wang. Springer, 2023. p. 703-711 (Environmental Science and Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements

AU - Huttunen, Petteri

AU - Vinha, Juha

PY - 2023

Y1 - 2023

N2 - A Finnish-German collaborative project was carried out in 2018–2020 with the objective to investigate the accuracy and reliability of a novel metering device for in-situ determination of U-values of envelope structures. A rapid and reliable in-situ measurement method would clearly be a desirable tool for surveying the actual energy performance of existing buildings. Series of experimental and computational studies around a novel measurement device were carried out in Rapid U project. Rapidness of the measurement is sought by scheduling the moment of measurement so that the outdoor temperature has been sufficiently stable and cold before the measurement. Several test building measurements were carried out for certain structures in real weather conditions. Numerical modelling was also used to estimate the total number of hours in a year when the conditions are theoretically possible for similar structures to be measured rapidly. Repeated test building measurements showed unfortunately significant variation in the results. However, on average the results were promising and according to the simulations there should be plenty of suitable hours per year for rapid U-value measurement in cold countries if certain error tolerance is allowed.

AB - A Finnish-German collaborative project was carried out in 2018–2020 with the objective to investigate the accuracy and reliability of a novel metering device for in-situ determination of U-values of envelope structures. A rapid and reliable in-situ measurement method would clearly be a desirable tool for surveying the actual energy performance of existing buildings. Series of experimental and computational studies around a novel measurement device were carried out in Rapid U project. Rapidness of the measurement is sought by scheduling the moment of measurement so that the outdoor temperature has been sufficiently stable and cold before the measurement. Several test building measurements were carried out for certain structures in real weather conditions. Numerical modelling was also used to estimate the total number of hours in a year when the conditions are theoretically possible for similar structures to be measured rapidly. Repeated test building measurements showed unfortunately significant variation in the results. However, on average the results were promising and according to the simulations there should be plenty of suitable hours per year for rapid U-value measurement in cold countries if certain error tolerance is allowed.

KW - In-situ measurement

KW - Thermal transmittance

KW - U-value

U2 - 10.1007/978-981-19-9822-5_75

DO - 10.1007/978-981-19-9822-5_75

M3 - Conference contribution

AN - SCOPUS:85172738442

SN - 978-981-19-9821-8

T3 - Environmental Science and Engineering

SP - 703

EP - 711

BT - Proceedings of the 5th International Conference on Building Energy and Environment

A2 - Wang, Liangzhu Leon

A2 - Ge, Hua

A2 - Ouf, Mohamed

A2 - Zhai, Zhiqiang John

A2 - Qi, Dahai

A2 - Sun, Chanjuan

A2 - Wang, Dengjia

PB - Springer

T2 - International Conference on Building Energy and Environment (COBEE)

Y2 - 25 July 2022 through 29 July 2022

ER -

Overview of a Research Project of Novel and Rapid In-Situ U-Value Measurements

Abstract

Publication series

Conference

Keywords

Publication forum classification

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this