The Effects of Solar Reflectance Index (SRI) on Roof Tiles for Climate Change Mitigation
Temperature rise is a global phenomenon that has been occuring for a long time. This is due to the development that occurs everywhere around the world. As human continue their pursue of the latest technology and the tallest skyscrapper, we tend to neglect the negative impact it has on the world....
Saved in:
Main Author: | |
---|---|
Format: | Final Year Project |
Language: | English |
Published: |
Universiti Teknologi PETRONAS
2011
|
Subjects: | |
Online Access: | http://utpedia.utp.edu.my/10358/1/2011%20-%20The%20effects%20of%20solar%20reflectance%20index%28SRI%29%20on%20roof%20tiles%20for%20climate%20change%20mitigation.pdf http://utpedia.utp.edu.my/10358/ |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my-utp-utpedia.10358 |
---|---|
record_format |
eprints |
spelling |
my-utp-utpedia.103582017-01-25T09:41:44Z http://utpedia.utp.edu.my/10358/ The Effects of Solar Reflectance Index (SRI) on Roof Tiles for Climate Change Mitigation Mohd Nawawi, Mohamad Helmi TA Engineering (General). Civil engineering (General) Temperature rise is a global phenomenon that has been occuring for a long time. This is due to the development that occurs everywhere around the world. As human continue their pursue of the latest technology and the tallest skyscrapper, we tend to neglect the negative impact it has on the world. Although we cannot dismiss the importance of developing a nation, we also need to ensure mitigation methods in order to cope with the ever-rising temperature. We tend to cope with this issue by using more air-conditioning units in our residents and work places. Green house gasses emission caused by excessive usage of air-conditioning units is one of the factors that cause the temperature rise. These gasses are one of the factors of global warming. Urban Heat Island effect is a huge problem that occurs in rural and urban areas. It is the effect of excessive heat gain on buildings. During the peak heat of the day, the temperature of an exposed area might rise up to 50°C [19]. Since the roof affects more of the heat gain compared to the envelope (walls) of a low-rise building, we conducted the experiment only on the roofs. A method that can be used to reduce the usage of air-conditioning units is by choosing light colored roof tiles, which has high SRI value. A standard white color has the SRI value of 100 while a standard black color has the SRI value of 0. Solar Emittance and Solar Reflectance affect these values with both ranging from 0 to 1. By choosing lighter colors, we can manage to reduce heat absorbtion of our building, especially during the peak heat of the day. The experiment consists of four roof tile colors, which are white, orange, dark brown and light grey. The data compared for these colors are the ambient temperature, indoor temperature, solar irradiation and relative humidity. The experiment was conducted at an experimental house with the size of 3m x 3m x 2.5m. The instruments used are a solarimeter, a multimeter and an internal automatic data logger. The duration of each color was six days. Universiti Teknologi PETRONAS 2011-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/10358/1/2011%20-%20The%20effects%20of%20solar%20reflectance%20index%28SRI%29%20on%20roof%20tiles%20for%20climate%20change%20mitigation.pdf Mohd Nawawi, Mohamad Helmi (2011) The Effects of Solar Reflectance Index (SRI) on Roof Tiles for Climate Change Mitigation. Universiti Teknologi PETRONAS. (Unpublished) |
institution |
Universiti Teknologi Petronas |
building |
UTP Resource Centre |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Teknologi Petronas |
content_source |
UTP Electronic and Digitized Intellectual Asset |
url_provider |
http://utpedia.utp.edu.my/ |
language |
English |
topic |
TA Engineering (General). Civil engineering (General) |
spellingShingle |
TA Engineering (General). Civil engineering (General) Mohd Nawawi, Mohamad Helmi The Effects of Solar Reflectance Index (SRI) on Roof Tiles for Climate Change Mitigation |
description |
Temperature rise is a global phenomenon that has been occuring for a long time. This
is due to the development that occurs everywhere around the world. As human
continue their pursue of the latest technology and the tallest skyscrapper, we tend to
neglect the negative impact it has on the world. Although we cannot dismiss the
importance of developing a nation, we also need to ensure mitigation methods in
order to cope with the ever-rising temperature. We tend to cope with this issue by
using more air-conditioning units in our residents and work places. Green house
gasses emission caused by excessive usage of air-conditioning units is one of the
factors that cause the temperature rise. These gasses are one of the factors of global
warming. Urban Heat Island effect is a huge problem that occurs in rural and urban
areas. It is the effect of excessive heat gain on buildings. During the peak heat of the
day, the temperature of an exposed area might rise up to 50°C [19]. Since the roof
affects more of the heat gain compared to the envelope (walls) of a low-rise building,
we conducted the experiment only on the roofs. A method that can be used to reduce
the usage of air-conditioning units is by choosing light colored roof tiles, which has
high SRI value. A standard white color has the SRI value of 100 while a standard
black color has the SRI value of 0. Solar Emittance and Solar Reflectance affect these
values with both ranging from 0 to 1. By choosing lighter colors, we can manage to
reduce heat absorbtion of our building, especially during the peak heat of the day. The
experiment consists of four roof tile colors, which are white, orange, dark brown and
light grey. The data compared for these colors are the ambient temperature, indoor
temperature, solar irradiation and relative humidity. The experiment was conducted at
an experimental house with the size of 3m x 3m x 2.5m. The instruments used are a
solarimeter, a multimeter and an internal automatic data logger. The duration of each
color was six days. |
format |
Final Year Project |
author |
Mohd Nawawi, Mohamad Helmi |
author_facet |
Mohd Nawawi, Mohamad Helmi |
author_sort |
Mohd Nawawi, Mohamad Helmi |
title |
The Effects of Solar Reflectance Index (SRI) on Roof Tiles for
Climate Change Mitigation |
title_short |
The Effects of Solar Reflectance Index (SRI) on Roof Tiles for
Climate Change Mitigation |
title_full |
The Effects of Solar Reflectance Index (SRI) on Roof Tiles for
Climate Change Mitigation |
title_fullStr |
The Effects of Solar Reflectance Index (SRI) on Roof Tiles for
Climate Change Mitigation |
title_full_unstemmed |
The Effects of Solar Reflectance Index (SRI) on Roof Tiles for
Climate Change Mitigation |
title_sort |
effects of solar reflectance index (sri) on roof tiles for
climate change mitigation |
publisher |
Universiti Teknologi PETRONAS |
publishDate |
2011 |
url |
http://utpedia.utp.edu.my/10358/1/2011%20-%20The%20effects%20of%20solar%20reflectance%20index%28SRI%29%20on%20roof%20tiles%20for%20climate%20change%20mitigation.pdf http://utpedia.utp.edu.my/10358/ |
_version_ |
1739831793547214848 |
score |
13.18916 |