In situ measurement of thermal transmittance and thermal resistance of hollow reinforced precast concrete walls

Aftab Ahmad; Mohammed Maslehuddin; Luai M. Al-Hadhrami

doi:10.1016/j.enbuild.2014.07.048

In situ measurement of thermal transmittance and thermal resistance of hollow reinforced precast concrete walls

Aftab Ahmad^*
, Mohammed Maslehuddin
, Luai M. Al-Hadhrami

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

101 Scopus citations

Abstract

A study was conducted to determine the in situ thermal transmittance and thermal resistance of two exterior reinforced precast concrete walls of a building constructed with hollow panels. The results indicate that the North and East facing walls have a mean thermal transmittance (air to air) of 1.459 and 1.803 W/m² K, respectively. The mean thermal resistance value (surface to surface) of the North and East walls is 0.355 and 0.352 m² K/W, respectively. While the thermal transmittance depends on the wall orientation and the outside weather conditions, the thermal resistance is independent of the wall orientation. The results also indicate that a monitoring period of six days is sufficient to ascertain the in situ thermal transmittance and thermal resistance of reinforced precast concrete walls.

Original language	English
Pages (from-to)	132-141
Number of pages	10
Journal	Energy and Buildings
Volume	84
DOIs	https://doi.org/10.1016/j.enbuild.2014.07.048
State	Published - Dec 2014

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

Keywords

Equivalent thermal conductivity
Hollow panels
Reinforced precast concrete walls
Thermal conductance
Thermal performance
Thermal resistance
Thermal transmittance

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanical Engineering
Electrical and Electronic Engineering

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10.1016/j.enbuild.2014.07.048

Cite this

@article{9778fa48061043e9a0417e12b1791caa,

title = "In situ measurement of thermal transmittance and thermal resistance of hollow reinforced precast concrete walls",

abstract = "A study was conducted to determine the in situ thermal transmittance and thermal resistance of two exterior reinforced precast concrete walls of a building constructed with hollow panels. The results indicate that the North and East facing walls have a mean thermal transmittance (air to air) of 1.459 and 1.803 W/m2 K, respectively. The mean thermal resistance value (surface to surface) of the North and East walls is 0.355 and 0.352 m2 K/W, respectively. While the thermal transmittance depends on the wall orientation and the outside weather conditions, the thermal resistance is independent of the wall orientation. The results also indicate that a monitoring period of six days is sufficient to ascertain the in situ thermal transmittance and thermal resistance of reinforced precast concrete walls.",

keywords = "Equivalent thermal conductivity, Hollow panels, Reinforced precast concrete walls, Thermal conductance, Thermal performance, Thermal resistance, Thermal transmittance",

author = "Aftab Ahmad and Mohammed Maslehuddin and Al-Hadhrami, \{Luai M.\}",

year = "2014",

month = dec,

doi = "10.1016/j.enbuild.2014.07.048",

language = "English",

volume = "84",

pages = "132--141",

journal = "Energy and Buildings",

issn = "0378-7788",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - In situ measurement of thermal transmittance and thermal resistance of hollow reinforced precast concrete walls

AU - Ahmad, Aftab

AU - Maslehuddin, Mohammed

AU - Al-Hadhrami, Luai M.

PY - 2014/12

Y1 - 2014/12

N2 - A study was conducted to determine the in situ thermal transmittance and thermal resistance of two exterior reinforced precast concrete walls of a building constructed with hollow panels. The results indicate that the North and East facing walls have a mean thermal transmittance (air to air) of 1.459 and 1.803 W/m2 K, respectively. The mean thermal resistance value (surface to surface) of the North and East walls is 0.355 and 0.352 m2 K/W, respectively. While the thermal transmittance depends on the wall orientation and the outside weather conditions, the thermal resistance is independent of the wall orientation. The results also indicate that a monitoring period of six days is sufficient to ascertain the in situ thermal transmittance and thermal resistance of reinforced precast concrete walls.

AB - A study was conducted to determine the in situ thermal transmittance and thermal resistance of two exterior reinforced precast concrete walls of a building constructed with hollow panels. The results indicate that the North and East facing walls have a mean thermal transmittance (air to air) of 1.459 and 1.803 W/m2 K, respectively. The mean thermal resistance value (surface to surface) of the North and East walls is 0.355 and 0.352 m2 K/W, respectively. While the thermal transmittance depends on the wall orientation and the outside weather conditions, the thermal resistance is independent of the wall orientation. The results also indicate that a monitoring period of six days is sufficient to ascertain the in situ thermal transmittance and thermal resistance of reinforced precast concrete walls.

KW - Equivalent thermal conductivity

KW - Hollow panels

KW - Reinforced precast concrete walls

KW - Thermal conductance

KW - Thermal performance

KW - Thermal resistance

KW - Thermal transmittance

UR - https://www.scopus.com/pages/publications/84907550506

U2 - 10.1016/j.enbuild.2014.07.048

DO - 10.1016/j.enbuild.2014.07.048

M3 - Article

AN - SCOPUS:84907550506

SN - 0378-7788

VL - 84

SP - 132

EP - 141

JO - Energy and Buildings

JF - Energy and Buildings

ER -

In situ measurement of thermal transmittance and thermal resistance of hollow reinforced precast concrete walls

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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