Design Principles for Energy-Efficient Envelopes of Tall Office Buildings

By Mohammad Mehdi Ghiai and Mansoureh Tahbaz.

Published by The Design Collection

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Article: Print $US10.00
Article: Electronic $US5.00

The external building envelope as the outermost part of the building plays the main role in creation the comfort conditions (visual, sound and thermal comfort) for their users. The thermal performance as a main function of the external envelope is very important in high energy consumption buildings. The development of tall buildings in the past decade uses a wide range of energy sources because of high user density in a limited area. Therefore, external envelopes of tall buildings should be designed for appropriate thermal performance and reduction of the total energy demand. In the first part of this paper, the external envelope types, functions and its thermal performance has been evaluated. Then the main components of the envelope that are affective on the thermal preference of external envelope are expressed in order of priority. In the next part, tall building, the need for its use and its role in terms of energy consumption has been introduced shortly. This paper has tried to analyze the tall building envelope structure and represent the envelope specifications as a design pattern to provide a low energy tall building with an appropriate thermal performance.

Keywords: Building Envelope, Tall Building, Thermal Performance, Energy Consumption, Energy Simulation

Design Principles and Practices: An International Journal, Volume 5, Issue 5, pp.201-214. Article: Print (Spiral Bound). Article: Electronic (PDF File; 2.790MB).

Dr. Mohammad Mehdi Ghiai

Ph.D Student, Art & Architecture Faculty, Department of Architecture, Science and Research Branch, Islamic Azad University, Tehran, Tehran, Iran (Islamic Republic of)

My full name is Mohammad Mehdi Ghiai.I have got a B.Sc in the field of Architecture from Iran University of Science & Technology, which is one of the most reputable universities in Iran and a M.Sc of architecture from University of Arts. I have completed my thesis entitled “Iranian Architectural Research Center”. Due to the studies done and gaining the necessary information for designing. I am currently a PHD student in the field of architecture with focus on “Sustainable Architecture” at Islamic Azad University, Science & Research Branch and aslo a member of scientific board at Islamic Azad Univercity, Shahr-e-Rey Branch.

Dr. Mansoureh Tahbaz

Associate Professor, Assistant Professor, Faculty of Architecture & Urbanism, Shahid Beheshti University, Tehran, Tehran, Iran (Islamic Republic of)

Mansoureh Tahbaz (Ph.D. of Architecture), Professor Assistant, Graduated from Shahid Beheshti University in Architecture. M. Arch Thesis: - “Thermal Comfort in Open Areas and Passages”, School of Architecture and Urban Planning, Shahid Beheshti University, Tehran, 1990. (By supervising of Dr. Mahmoud Razjouyan) Ph.D Thesis: - “Warmth-Light Mask of Window, evaluation of solar energy and daylight in window design simultaneously”, School of Architecture and Urban Planning, Shahid Beheshti University, Tehran, 2004. (By supervising of Dr. Mahmoud Razjouyan and Prof. Peter Tregenza) Publications: 5 books in the field of environmental architecture, 16 articles in scientific Journals, 50 articles in international conferences in Iran and abroad, 12 completed research projects, Awards and Patent: Being awarded as “The Best Woman Researcher” in the Women and Research Nation-wide Festival in Tehran Dec. 2004, One Patent of Evaluating Solar Energy & Daylight Getting through the Window Simultaneously in a Pattern Year, Research and Industry Ministry, Patent No. 32791, Sep. 2005. Being awarded as the best PhD student by the ministry of science and technology of Iran, Being awarded as the best PhD project in the conference of energy conservation in building (IFCO IRAN) 2006, Being awarded as the best article in the conference of the conference of energy conservation in building (IFCO IRAN) 2003, Being awarded as the best poster presentation by the conference of CISBAT 2009 (EPFL University Switzerland).


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