Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate
Published Article === The purpose of this paper is to analyse the thermal performance of two buildings. The one has a large thermal mass and the other a highly insulated low thermal mass. A typical 120 m2 suburban building was modelled in Ecotect. As part of the model infiltration rate, wind sensiti...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | en_US |
Published: |
Journal for New Generation Sciences, Vol 11, Issue 3: Central University of Technology, Free State, Bloemfontein
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/11462/645 |
id |
ndltd-netd.ac.za-oai-union.ndltd.org-cut-oai-ir.cut.ac.za-11462-645 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-netd.ac.za-oai-union.ndltd.org-cut-oai-ir.cut.ac.za-11462-6452016-03-16T03:59:04Z Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate Kumirai, T. Conradie, D.C.U. Central University of Technology, Free State, Bloemfontein Heavy weight Thermal mass Light-weight building construction Thermal performance Energy efficiency Published Article The purpose of this paper is to analyse the thermal performance of two buildings. The one has a large thermal mass and the other a highly insulated low thermal mass. A typical 120 m2 suburban building was modelled in Ecotect. As part of the model infiltration rate, wind sensitivity and a central Pretoria weather file were used. New material composites were introduced in the materials database to represent typical building materials used in the construction of heavy and light-weight buildings in South Africa. The thermal characteristics of these new materials were then calculated within Ecotect. Ecomat was used to calculate thermal lag which was used as an additional input into Ecotect. The research indicates that a low thermal mass and highly insulated building have been shown to use 18.3% less annual space heating and cooling energy when compared to the high thermal mass building. The good thermal performance results of the light-weight building will help in clearing scepticism to adopting this construction technology in southern Africa where high thermal mass masonry is still predominant. 2015-10-05T10:55:57Z 2015-10-05T10:55:57Z 2013 2013 Article 16844998 http://hdl.handle.net/11462/645 en_US Journal for New Generation Sciences;Vol 11, Issue 3 Central University of Technology, Free State, Bloemfontein 635 660 bytes, 1 file Application/PDF Journal for New Generation Sciences, Vol 11, Issue 3: Central University of Technology, Free State, Bloemfontein |
collection |
NDLTD |
language |
en_US |
format |
Others
|
sources |
NDLTD |
topic |
Heavy weight Thermal mass Light-weight building construction Thermal performance Energy efficiency |
spellingShingle |
Heavy weight Thermal mass Light-weight building construction Thermal performance Energy efficiency Kumirai, T. Conradie, D.C.U. Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate |
description |
Published Article === The purpose of this paper is to analyse the thermal performance of two buildings. The one has a large thermal mass and the other a highly insulated low thermal mass. A typical 120 m2 suburban building was modelled in Ecotect. As part of the model infiltration rate, wind sensitivity and a central Pretoria weather file were used. New material composites were introduced in the materials database to represent typical building materials used in the construction of heavy and light-weight buildings in South Africa. The thermal characteristics of these new materials were then calculated within Ecotect. Ecomat was used to calculate thermal lag which was used as an additional input into Ecotect. The research indicates that a low thermal mass and highly insulated building have been shown to use 18.3% less annual space heating and cooling energy when compared to the high thermal mass building. The good thermal performance results of the light-weight building will help in clearing scepticism to adopting this construction technology in southern Africa where high thermal mass masonry is still predominant. |
author2 |
Central University of Technology, Free State, Bloemfontein |
author_facet |
Central University of Technology, Free State, Bloemfontein Kumirai, T. Conradie, D.C.U. |
author |
Kumirai, T. Conradie, D.C.U. |
author_sort |
Kumirai, T. |
title |
Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate |
title_short |
Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate |
title_full |
Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate |
title_fullStr |
Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate |
title_full_unstemmed |
Thermal performance of heavy-weight and light-weight steel frame construction approaches in the central Pretoria climate |
title_sort |
thermal performance of heavy-weight and light-weight steel frame construction approaches in the central pretoria climate |
publisher |
Journal for New Generation Sciences, Vol 11, Issue 3: Central University of Technology, Free State, Bloemfontein |
publishDate |
2015 |
url |
http://hdl.handle.net/11462/645 |
work_keys_str_mv |
AT kumirait thermalperformanceofheavyweightandlightweightsteelframeconstructionapproachesinthecentralpretoriaclimate AT conradiedcu thermalperformanceofheavyweightandlightweightsteelframeconstructionapproachesinthecentralpretoriaclimate |
_version_ |
1718204719471525888 |