This research examines energy consumption of public housing in Sao Paulo, Brazil and how changes in the current design practice affect building’s energy consumption and comfort level. The hypothesis is that energy-efficient design concepts applied to the public housing design in Sao Paulo could significantly reduce energy consumption in buildings. Computer simulation is used to evaluate the current buildings’ energy performance and to simulate the performance of new energy-saving design strategies. The findings show that energy consumption can be reduced by as much as 54% by implementing the new design strategies. This study highlights the many opportunities for architects to change the public housing scenario in Sao Paulo. It showed that changes carefully applied to the current design process can significantly enhance building’s energy performance and comfort level inside the envelope.
The paper’s primary contribution is showing that small changes in the design thinking, such as adopting more efficient building materials and considering the site’s natural features, can change the public housing scenario in Sao Paulo improving people’s life while promoting a more sustainable use of natural resources.
U.S. International Energy Agency, "Sectoral approaches in electricity: Building bridges to a safe climate, 2009." http://www.iea.org/publications/free_new_Desc.asp?PUBS_ID=2132 [Accessed 2013], 2009.
U.S. International Energy Agency, "Brazil. Country analysis brief, 2013." Available: http://www.eia.gov/countries/country-data.cfm?fips=BR [Accessed 2013], 2013.
P. M. Fearnside and S. Pueyo, "Greenhouse-gas emissions from tropical dams, nature climate change." Available: http://www.nature.com [Accessed 2013].
S. J. Battles and E. M. Burns, "Trends in building-related energy and carbon emissions: Actual and alternate scenarios," Energy Information Administration. Available: http://www.eia.gov/emeu/efficiency/aceee2000.html [Accessed June 2014], 2010.
UNSTATS, "Indicators of population." Available: http://unstats.un.org/unsd/demographic/products/socind/population.html, 2009.
S. Davis, The architecture of affordable housing. Berkeley and Los Angeles, California: University of California Press, 1995.
T. R. Lakshmanan, L. Chatterjee, and P. Roy, "Housing anyone? Housing requirements and national resources: Implications of the U.N. world model," HABITAT, An International Journal, vol. 2, pp. 277-289, 1977.
Department of Human Services, "State government of victoria, housing, Ks apartments, Australia." Available: http://www.dhs.vic.gov.au/for-business-and-community/building-and-construction-industry/property-developers/building-projects, 2009.
Housing and Development Board, "Singapore yearbook. Available: http://app.www.sg/who/3/25/437/2009-Yearbook---Housing-and-Development-Board.aspx," 2009.
FJP, "Deficit habitacional no Brasil 2007," Governo do Estado de Minas Gerais. Available: http://www.fjp.mg.gov.br//index.php?option=com_content&task=view&id=84&Itemid=96, p. 25, 2009.
N. G. Bonduki, "Origens da habitacao social no Brasil," Analise Social, vol. XXIX, pp. 715-716, 2004.
UN HABITAT, "São Paulo; A tale of two cities. Cities & citizens series, bringing the urban divide (Series Title)," Nairobi, United Nations Human Settlements Programme, 2010.
D. Holm, Energy conservation in hot climates. London, New York: The Architectural Press, Nichols Publishing Company, 2010.
N. Lechner, Heating, cooling, lighting. Design methods for architects, 2nd ed. New York: John Wiley and Sons, Inc, 2001.
R. E. Rouse, Passive solar design for multi-family buildings. Case studies and conclusions from massachusetts’ multi-family passive design program. Danvers, MA: Bradford & Bigelow, 2003.
L. Gartland, Heat island. Understanding and mitigating heat in urban areas. Trowbridge, UK: Cromwell Press, 2008.
NFRC, "The facts about solar heat gain and windows, national fenestration rating council." Available: www.nfrc.org, 2005.
M. C. Ruiz and E. Romero, "Energy saving in conventional design of a Spanish house using thermal simulation," Energy and Buildings, vol. 43, pp. 3226-3235, 2011.
M. Ke, C. Yeh, and J. Jian, "Analysis of building energy consumption parameters and energy savings measurement and verification by applying eQUEST software," Energy and Buildings, vol. 61, pp. 100-107, 2013.
D. Taleb and B. Abu-Hijleh, "Urban heat islands: Potential effect of organic and structured urban configurations on temperature variations in Dubai, UAE," Renewable Energy, vol. 50, pp. 747-762, 2013.
N. Al-Masri and B. Abu-Hijleh, "Courtyard housing in midrise buildings - an environmental assessment in hot-arid climate," Renewable & Sustainable Energy Reviews, vol. 16, pp. 1892-1898, 2012.
Y. Saadah and B. Abu-Hijleh, "Decreasing CO2 emissions and embodied energy during the construction phase using sustainable building materials," International Journal of Sustainable Building Technology and Urban Development, vol. 1, pp. 115-120, 2010.
M. Haase and A. A. Amato, "An investigation of the potential for natural ventilation and building orientation to achieve thermal comfort in warm and humid climates," Solar Energy, vol. 83, pp. 389-399, 2009.
S. M. Bambrook, A. B. Sproul, and D. Jacob, "Design optimization for a low energy home in sydney," Energy and Buildings, vol. 43, pp. 1702–1711, 2011.
A. Almusaed, Biophilic and bioclimate architecture, analytical therapy for the next generation of passive sustainable architecture. London: Springer, 2011.
R. Thomas, Environmental design. An introduction for architects and engineers, 3rd ed. New York: Taylor and Francis, 2009.
ASHRAE, "Thermal environmental conditions for human occupancy. Addendum 55a, ASHRAE, standard 55." Available: http://www.ashrae.org/advocacy/page/1347 [Accessed September 2009], 2009.