A Parametric Study Of Window, Orientation And Shading to Minimize Energy Consuption in Mechanically Ventilated High Rise Office Buildings in Dhaka, Bangladesh
Vital statistics of a building, meaning geometric attributes, are very important design tool to manipulate energy performance of a building which is often neglected. Though a lot of recent researches focused on increasing capabilities of material and technology to build energy efficient buildings, design elements such as form, shape, window, orientation, etc. can play a very important and effective role to increase energy efficiency. The strategic design decisions about geometric attributes in the design phase costs almost nothing and can save energy bills through lifetime of the building, which is yet be specified in particular climatic region and particular building types where energy consumption matters in national scale. This paper investigates the critical proportion of façade glazing through parametric study by simulation to obtain optimum balance between luminous and thermal behavior as well as energy consumption. The context of the study is Dhaka, with tropical monsoon climate where heat and humidity is a big concern. The experiment is carried out and hence relevant to highrise office building due to its large vertical surface compared to insignificant roof area. The outcomes indicate that significant harvesting of daylight and reduction of total energy consumption by 50% comes with proper shading on large glazing on East and West facade; and 30% on South facade.
Al-Homoud, M.. (1997). “Optimum thermal design of office buildings”. International Journal of Energy Research, 21, pp. 941-957.
BODART, M. And De Herde, A.. (2002). “Global energy savings in offices buildings by the use of daylighting”. Energy And Buildings, 34(5), pp.421-429.
CHOUDHURY, J. R.. (1990). Tall Building Developments in Bangladesh. In:Fourth World Congress on Tall Buildings: 2000 and Beyond, Hong Kong: Council for Tall Buildings and Urban Habitat.
DANNY H. W.. (2001). “Evaluation of lighting performance in office buildings with day lighting controls”. Energy And Buildings, 33, pp.793-803.
FRANZETTI, Christelle et al. (2004). “Influence of the coupling between daylight and artificial lighting on thermal loads in office buildings”. Energy And Buildings, 36, pp.117-126.
GIVONI, Baruch. (1992). “Comfort, climate analysis and building design guidelines”. Energy and Buildings, 18, pp.11-23.
GRATIA, E. and De Herde, A. (2003). “Design of low energy offices”. Energy and Buildings, 35, pp.473-491.
HEGGER, Manfred et al. (2008). Energy Manual : Sustainable Architecture. Munich: Birkhäuser.
JOARDER, M.A.R. et al, (2009). Daylight simulation for sustainable urban office building design in Dhaka, Bangladesh: decision-making for internal blind configurations. In: Second International Conference on Whole Life Urban Sustainability and its Assessment. Loughborough: SUE-MoT.
KOENIGSBERGER, Otto H., et al. (1980). Manual of tropical housing and building: Climatic design. London:Longman.
LEHAR, M.A. (2007). “Rapid algorithm for modeling daylight distributions in office buildings”. Building and Environment, 42, pp.2908-2919.
LOMBARD, Luis Perez, et al. (2008). “A review on building energy consumption information”. Energy and Buildings, 40(3), pp. 394-398
MAHTAB-UZ-ZAMAN, Q.M. and Lau, Stephen S.Y..(2000). City Expansion Policy versus Compact City Demand: The Case of Dhaka. In: JENKS, Mike and BURGESS, Rod, ed., Compact Cities, 1st ed. NY: Spon Press.
MALLICK, Fuad H. (1996). “Thermal Comfort and Building Design in Tropical Climate”. Energy and Buildings, 23, pp.161-167.
MOURSHED, M..(2011). “The impact of the projected changes in temperature on heating and cooling requirements in buildings in Dhaka, Bangladesh”. Applied Energy, 88 (11), pp. 3737 – 3746.
MRIDHA, A.M.M.H. (2002). A study of Thermal Performance of Operable Roof Insulation with Special Reference to Dhaka. M.Arch. Department of Architecture, BUET, Dhaka.
PARVEEN, Rehnuma. (2004). Wind on Highrise Apartments with respect to Height & Orientation. M.Arch. Department of Architecture, BUET, Dhaka.
PARYS, Wout, et al. (2009). Optimization of energy use for heating/cooling and lighting for a typical office room in a moderate climate. In: The 6th International Symposium on Heating, Ventilating and Air Conditioning. Nanjing: Southeast University
POIRAZIS, Harris. (2008). “Energy simulations for glazed office buildings in Sweden”. Energy and buildings, 40(7), pp.1161 -1170.
GORDON, Jeffrey. (2001). Solar energy: the state of the art : ISES position papers. UK: James & James ltd.
RAHMAN, Anisur. (2008). “Observations on Performance of Commonly Used Shading Devices in Tall Office Buildings of Dhaka”. Protibesh, 12(2), pp. 15-26.
RAHMAN, Anisur. (2007). Performance Evaluation of Shading Devices in Tall Office Buildings of Dhaka, M.Arch. Department of Architecture, BUET, Dhaka.
TRISHA, S.H. and Ahmed, Zebun, 2016, Light Zones vs. HVAC Loads: evaluating energy efficiency for shading devices in commercial buildings. In: 32nd International Plea Conference. Los Angeles: PLEA2016
Websites and other sources
ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers) [online] available at: http://www.ccohs.ca/oshanswers/phys_agents/thermal_comfort.html [accessed 13 August 2014]
BNBC (Bangladesh National Building Code).(2006). Extra Gazette.
BPDB (Bangladesh Power Development Board) [online] available at: http://www.bpdb.gov.bd/bpdb [accessed 25 August, 2012]
BSS (Bangladeh Shangbad Shnagatha, national news agency) [online] available at: www.bssnews.net [accessed 25 August, 2012]
CSA (Canadian Standards association) and CCOHS (Canadian Center for Occupational Health and safety) [online] available at: http://www.ccohs.ca/oshanswers/phys_agents/thermal_comfort.html [accessed 2 September 2012]
Emporis: Global provider of building information [online] available at: http://www.emporis.com/corporate [accessed 25 August, 2012]
Energy Plus: Energy simulation software from US Department of Energy. [online] available at: http://apps1.eere.energy.gov [accessed 2 August, 2012]
The Daily NEWSTODAY [online] available at: http://www.newstoday.com.bd [accessed 25 August, 2012)
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