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The Artificial Sky Laboratory At Oklahoma State University

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2004 Annual Conference


Salt Lake City, Utah

Publication Date

June 20, 2004

Start Date

June 20, 2004

End Date

June 23, 2004



Conference Session

Trends in Energy Conversion/Conservation

Page Count


Page Numbers

9.1232.1 - 9.1232.7



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Paper Authors

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Khaled Mansy

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NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Session 2233

The Artificial Sky Laboratory at Oklahoma State University

Khaled Mansy, Ph.D.

Assistant Professor, Oklahoma State University


Utilization of daylight is one of the most cost-effective energy-efficient strategies to design and engineer low-energy buildings. Integration between daylighting and electric lighting systems in commercial buildings results in a significant reduction in annual energy use and operating cost. As in other engineered systems, quantification of the performance of daylighting systems should dictate their design. In the US however, the majority of students of architectural engineering and architecture; architectural engineers; and architects currently use inaccurate rules of thumb and/or over-simplified methods to design and predict performance of daylighting systems. The Architectural Engineering Program at OSU is in the process of adopting and implementing the approach of testing daylighting scale models, which has proven to be able to accurately predict and quantify the performance of daylighting systems. With the support of the National Science Foundation (NSF), the school is currently in the process of building a cutting-edge daylighting laboratory, i.e., the Artificial Sky Dome. The new laboratory will help integrate the engineering of daylighting systems into the school’s curriculum, with the anticipation that this will nurture the scientific background and design skills of undergraduate students. The secondary mission of the laboratory is to disseminate the same knowledge and/or skills between graduate students, faculty, and practicing professionals. The laboratory will also be an effective venue to integrate teaching and research. The specific outcome expected from this project is to enable OSU’ students, and consequently OSU’ graduates to effectively incorporate daylighting systems into the design of buildings, which should result in the conservation of energy used to operate buildings, and the mitigation of related negative environmental impacts. The paper reports on the need of daylighting laboratories and their relevance to achieve a sustainable future through the design of low-energy buildings. The paper also reports on the existing tools currently being used in the USA to test daylighting scale models. The design challenges of building the new laboratory that assures accurate testing and results will be discussed.

1. Scope of Interest

Integration of daylight into buildings saves energy directly and indirectly. As published by the Energy Information Administration [1], an average of 44% of the electricity consumption in office buildings in the US is consumed by artificial lighting systems. Furthermore, thermal load from electric lighting systems appears as a component of the internal thermal loads in

“Proceedings of the 2004 American Society for Engineering Education Annual Conference & Exposition Copyright © 2004, American Society for Engineering Education”

Mansy, K. (2004, June), The Artificial Sky Laboratory At Oklahoma State University Paper presented at 2004 Annual Conference, Salt Lake City, Utah. 10.18260/1-2--13346

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