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گواهی نمایه سازی مقاله ESTIMATION OF GLOBAL SOLAR RADIATION USING SUNSHINE-BASED MODEL IN MAIDUGURI, NORTH EAST, NIGERIA

عنوان مقاله: ESTIMATION OF GLOBAL SOLAR RADIATION USING SUNSHINE-BASED MODEL IN MAIDUGURI, NORTH EAST, NIGERIA
شناسه (COI) مقاله: JR_ARJ-2-1_003
منتشر شده در مجله تحقیقات کاربردی در سال ۱۳۹۴
مشخصات نویسندگان مقاله:

A.A Garba - Department of Science Laboratory Technology Ramat Polytechnic, Maiduguri
R.O Amusat - Department of Physics University of Maiduguri
Y.H Ngadda - Department of Physics University of Maiduguri

خلاصه مقاله:
The facilities used for measuring and recording of global solar radiation arenot easily available due to the cost and techniques involved. The limitedeffort of the measurement indicates that there is a need to establishtheoretical methods for estimating solar radiation based on the availablemeteorological data. In this work, the measured data of solar radiation on ahorizontal surface and number of sunshine hours for Maiduguri for 15 years(1996-2010) were collected and analyzed, regression constants for the firstorder Angstrom-type correlations for Maiduguri were calculated usingregression analysis. The monthly calculated clearness index and monthlysunshine duration were correlated and modeled using four existingsunshine-based models which are linear, quadratic, exponential and powerequations. The results of the four models were compared. It was observedthat the quadratic model performed better in terms of coefficient ofdetermination than the other three models. A modified form of Ogelmanmodel has therefore been recommended in estimating the monthly averagedaily global solar radiation for Maiduguri.

کلمات کلیدی:
Global solar radiation, Maiduguri, Sunshine

صفحه اختصاصی مقاله و دریافت فایل کامل: https://www.civilica.com/Paper-JR_ARJ-JR_ARJ-2-1_003.html