Effect Of Selected Shading Devices On Office Room Temperature

This study investigated the effects of selected shading devices on office room temperature at Universiti Putra Malaysia. The experimental and simulation results were presented to show the thermal effects of coating systems used. Initial work for a duration of two months showed that high temperat...

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Main Author: A. Wahhad, Ali Mohamed
Format: Thesis
Language:English
English
Published: 2008
Online Access:http://psasir.upm.edu.my/id/eprint/5409/1/fk_2008_37.pdf
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author A. Wahhad, Ali Mohamed
author_facet A. Wahhad, Ali Mohamed
author_sort A. Wahhad, Ali Mohamed
collection UPM
description This study investigated the effects of selected shading devices on office room temperature at Universiti Putra Malaysia. The experimental and simulation results were presented to show the thermal effects of coating systems used. Initial work for a duration of two months showed that high temperatures occurred at 10:00, 1200 and 14:00 hours. This frequency of measurement is similar to that of Etzion and Erell (2000). Thermocouple wires were used to measure the air temperature in an office of size 4.03 m x 3.82 m x 2.60 m (length x width x height). The window was a vertical glass plate with thickness 5 mm, height 1.53 m and width 2.12 m and it was facing northeast. Coating materials used were plain glass pane thickness 5 mm (control), tinted film, silver film, and blinds. Results showed that the differences in temperature between the inside and outside of the office were 4.4oC, 3.8oC, 3.5oC and 2.9oC for silver film, blinds, tinted film and clean glass (5 mm), respectively. Comparison between simulated and experimental results showed a reasonable agreement, ranging between 0.2 to 10 %. The external air velocity ranged between 0.19 and 0.45 ms-1 and relative humidity between 22.7% and 77.5 %, while the average air velocity in the office ranged from 0.03 to 0.05 ms-1 and relative humidity from 57.2 % to 66.8 %. The simulated results for internal air temperatures of the office ranged from 28oC to 29oC. In terms of cost, the blinds gave value for money with every temperature drop for temperature difference between internal and external temperatures. In addition the blinds could be easily fixed.
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spelling upm.eprints-54092013-05-27T07:22:37Z http://psasir.upm.edu.my/id/eprint/5409/ Effect Of Selected Shading Devices On Office Room Temperature A. Wahhad, Ali Mohamed This study investigated the effects of selected shading devices on office room temperature at Universiti Putra Malaysia. The experimental and simulation results were presented to show the thermal effects of coating systems used. Initial work for a duration of two months showed that high temperatures occurred at 10:00, 1200 and 14:00 hours. This frequency of measurement is similar to that of Etzion and Erell (2000). Thermocouple wires were used to measure the air temperature in an office of size 4.03 m x 3.82 m x 2.60 m (length x width x height). The window was a vertical glass plate with thickness 5 mm, height 1.53 m and width 2.12 m and it was facing northeast. Coating materials used were plain glass pane thickness 5 mm (control), tinted film, silver film, and blinds. Results showed that the differences in temperature between the inside and outside of the office were 4.4oC, 3.8oC, 3.5oC and 2.9oC for silver film, blinds, tinted film and clean glass (5 mm), respectively. Comparison between simulated and experimental results showed a reasonable agreement, ranging between 0.2 to 10 %. The external air velocity ranged between 0.19 and 0.45 ms-1 and relative humidity between 22.7% and 77.5 %, while the average air velocity in the office ranged from 0.03 to 0.05 ms-1 and relative humidity from 57.2 % to 66.8 %. The simulated results for internal air temperatures of the office ranged from 28oC to 29oC. In terms of cost, the blinds gave value for money with every temperature drop for temperature difference between internal and external temperatures. In addition the blinds could be easily fixed. 2008 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/5409/1/fk_2008_37.pdf A. Wahhad, Ali Mohamed (2008) Effect Of Selected Shading Devices On Office Room Temperature. Masters thesis, Universiti Putra Malaysia. English
spellingShingle A. Wahhad, Ali Mohamed
Effect Of Selected Shading Devices On Office Room Temperature
title Effect Of Selected Shading Devices On Office Room Temperature
title_full Effect Of Selected Shading Devices On Office Room Temperature
title_fullStr Effect Of Selected Shading Devices On Office Room Temperature
title_full_unstemmed Effect Of Selected Shading Devices On Office Room Temperature
title_short Effect Of Selected Shading Devices On Office Room Temperature
title_sort effect of selected shading devices on office room temperature
url http://psasir.upm.edu.my/id/eprint/5409/1/fk_2008_37.pdf
work_keys_str_mv AT awahhadalimohamed effectofselectedshadingdevicesonofficeroomtemperature