The role of slope shape roofs in heating energy consumption Based on thermal comfort

Subject Areas : environmental management

Ali  Sharghi ¹ (Assistant Professor, Department of Architecture, Faculty of Architecture and urbanization, Shahid Rajaee Teacher Training University, Tehran,Iran)
Nazanin  Azimi Fereidani ² (Msc of Architecture, Department of Architecture, Faculty of Architecture and urbanization, Shahid Rajaee Teacher Training University, Tehran, Iran*(Corresponding Author).)

Received: 2015-11-03 Accepted : 2016-01-04 Published : 2017-06-22

Keywords: architecture, Roof shape, Thermal Comfort, mean radiant temperature, energy saving,

Abstract :

Background and Objective: In the past, thermal comfort was created through the design of buildings and a handful of construction equipment. Selection of appropriate crust form was one of the noteworthy methods in architecture. Such circumstances were changed in 1960s. Heating, cooling and lighting supply of buildings by mechanical equipment and the use of fossil fuels became pivotal aspect. In the past years following the energy crisis created in this way and environmental pollution, again the best case of heating and cooling, became the accordance to building design and use of clean energy. In these circumstances, appropriate and followed by that reduction of energy consumption of buildings. Among these components, roofing, which plays a fundamental role in thermal exchange, is often overlooked. Method: In this article, research method is done based on computer modeling and simulation by Revit 2014 and energy plus with version of 8.1.  Findings:So, ahead research intends to discuss in the mountainous of Karaj comparison between the four dominant type of roof including flat, one-way, two-way and four-way with the different angles. Its target is to achieve the optimum form and a roof sloping angle in this region based on the average radiant temperature, the man factors of thermal comfort. Discussion and Conclusion:  Results of Analysis of simulated models, shows optimal roof and its most appropriate angle in the sloping roof with constant floor area according to the average mean radiant temperature in the studied model. 

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