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Research Papers

Impact of Solar Model Selection on Building Energy Analysis for Kuwait

[+] Author and Article Information
Adnan Al-Anzi

Department of Architecture, Kuwait University, PO Box 5969, Safat 13060, Kuwaitalanzi2001@yahoo.com

Donghyun Seo

Civil, Environmental, and Architectural Engineering Department, University of Colorado, Boulder, Co 80309seodh@colorado.edu

Moncef Krarti

Civil, Environmental, and Architectural Engineering Department, University of Colorado, Boulder, Co 80309krarti@colorado.edu

J. Sol. Energy Eng 130(2), 021004 (Mar 10, 2008) (6 pages) doi:10.1115/1.2844410 History: Received May 08, 2006; Revised August 14, 2007; Published March 10, 2008

This paper summarizes the results of a comparative analysis for four models utilized to predict solar radiation in Kuwait City, Kuwait. The four models include the Kasten model, Zhang and Huang model, Muneer model, and neural network based model. The analysis was based on hourly measured solar data for Kuwait City. The measured hourly solar radiation data are obtained for the year 1994 and include global, direct, and diffuse solar radiations. Nonsolar weather data for the same year and site are obtained from the US National Climatic Data Center (NCDC). Weather files suitable for building energy simulation are developed using measuered data as well as predictions from the four solar models. A series of simulation analysis to determine the impact of solar model selection for the weather file on the energy uses predictions from a whole-building simulation program using office buildings in Kuwait. The results of the validation analysis and the simulation evaluation indicate that Zhang and Huang model is suitable for the predicting hourly solar radiation suitable for energy analysis of buildings in Kuwait.

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Copyright © 2008 by American Society of Mechanical Engineers
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Figures

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Figure 1

Hourly values of calculated from Kasten model versus measured global irradiance

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Figure 2

Monthly values of predicted from Kasten model versus measured global radiation

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Figure 3

Hourly values of calculated from Zhang and Huang model versus measured global irradiance

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Figure 4

Monthly values of predicted from Zhang and Huang model versus measured global radiation

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Figure 5

Hourly values of calculated from Muneer model versus measured global irradiance

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Figure 6

Monthly values of predicted from Muneer model versus measured global radiation

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Figure 7

Hourly values of NN predicted versus measured global irradiance

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Figure 8

Monthly values of NN predicted versus measured global radiation for Kuwait

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Figure 9

Two of several office building configurations used in the analysis: (a) aspect ratio-1∕1 and WWR-20%; (b) aspect ratio-1∕16 and WWR-40%

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Figure 10

Normalized office building energy use as a function of WWR for two aspect ratios

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Figure 11

Normalized office building energy use as a function of WWR for two aspect ratios

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