Effect of selected shading devices on office room temperature
Document Type
Article
Publication Date
1-1-2010
Abstract
This study investigated the effects of selected shading devices on office room temperature. The experimental 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 during 10:00, 12:00 and 14:00 hours. The coating materials used, were plain glass pane with the thickness of 5 mm (control), tinted film, silver film, and blinds. Results showed that the differences in temperatures between the inside and outside of the office were 4.4°C, 3.8°C, 3.5°C and 2.9°C for silver film, blinds, tinted film and clear glass (5 mm), respectively. In terms of cost, the blinds proved to be low in cost with every temperature drop for temperature difference between internal and external temperatures. For every degree difference, silver coating would cost RM 6.80/°C, tinted laminating RM4.57/°C, blind RM 1.97/°C, and clean glass (5mm) RM 1.90/ °C . RM is Malaysian Ringgit and 1Euro= 4.50 RM. In addition the blinds could be easily fixed comparatively.
Keywords
Laminating shading devices, Passive design, Window.
Divisions
fac_eng
Publication Title
International Journal of Mechanical and Materials Engineering
Volume
5
Issue
2
Publisher
International Journal of Mechanical and Materials Engineering
Additional Information
Export Date: 6 December 2012 Source: Scopus Language of Original Document: English Correspondence Address: Whaad, A. M.; Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia References: Al-Homoud, M.S., Optimum thermal design of office buildings (1997) International Journal of Energy Research, 21 (10), pp. 941-957; Bojic, M., Yik, F., Sat, P., Energy performance of windows in high-rise residential buildings in Hong Kong (2002) Energy and Buildings, 34 (1), pp. 71-82. , DOI 10.1016/S0378-7788(01)00079-2, PII S0378778801000792; Etzion, Y., Erell, E., Controlling the transmission of radiant energy through windows: A novel ventilated reversible glazing system (2000) Building and Environment, 35 (5), pp. 433-444. , DOI 10.1016/S0360-1323(99)00039-6; Ismail, K.A.R., Henriquez, J.R., Thermally effective windows with moving phase change material curtains (2001) Applied Thermal Engineering, 21 (18), pp. 1909-1923. , PII S1359431101000588; Ismail, K., Henriquez, J.R., Modeling and simulation of a simple glass window (2003) Journal of Solar Energy Materials and Solar Cells, 80, pp. 355-374; Lam, J.C., Li, D.W., An analysis of day lighting and solar heat for cooling dominated office buildings (1999) Journal of Solar Energy, 65, pp. 251-262; Mehlika, N., Inanici, Demirbilek, Thermal performance optimization of building aspect ratio and south window size in five cities having different climatic characteristics of Turkey (2000) Journal of Building and Environment, 35, pp. 41-52; Nielsen, D., Svendsen, Energy performance of glazing and windows (2001) Journal of Solar Energy, 69, pp. 137-2000; Sivasankar, S., (2006) Development of An Internet-based System to Measure Thermal Comfort in Indoor Environments, , Master Thesis. Universiti Putra Malaysia; Zahedi, S.H., (2005) Simulation and Optimization of Thermpsyphon Solar Water Heater for Kuala Lumpur Climate Using TRNSYS Software, , MS Thesis, Universiti Putra Malaysia