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55 results for “Solar radiation”
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Research ArticleOpen accessPhrase in the titleEvaluation of Solar Radiation and Atmospheric Air during Hay Harvesting in KazakhstanElmira Kulshikova, Abat Zhayliev, Aigul Yerekeshova, Saira KalievaThe study presents a probabilistic and statistical assessment of the actinometric characteristics of solar radiation and temperature and humidity parameters of atmospheric air during the hay harvesting period in Kazakhstan. The following characteristics are considered actinometric: The duration of the sunshine period, the total solar radiation flow, and the average intensity of the total solar radiation per unit area of … …OnLine Journal of Biological Sciences, Vol. 23, Issue 1 · 25 Jan 2023 · 5,190 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleFeasibility of Hybrid Neuro-Fuzzy (ANFIS) Machine Learning Model with Classical Multi-Linear Regression (MLR) For the Simulation of Solar Radiation: A Case Study Abuja, NigeriaNajashi B. Gafai, Asia'u Talatu BelgoreThe extremely variable nature of solar radiation makes it difficult for solar power plants to keep up with predicted power output and demand curves. As a result, solar radiation simulation is crucial to the efficient design, administration, and operation of any solar power plant. With only partially satisfactory results, empirical models have been routinely employed in Nigeria to predict solar … …Energy Research Journal, Vol. 13, Issue 1 · 21 Jul 2022 · 10,032 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleForecasting the Diffuse Solar Radiation by using a New Modeling over Saudi ArabiaSamy A. KhalilWithin the arranging and execution assessment of solar energy projects, particularly within the planning and estimation of solar photovoltaic sources as elective energy sources within the future, exact evaluation of Diffuse Solar Radiation (DSR) is one of the essential and basic issues. The target of this article is to use the new model to predict DSR in four different locations … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 5 May 2021 · 7,352 accessesView PDFCite
Research ArticleOpen accessPhrase in the titlePiecewise Positivity Preserving Cubic Bezier Interpolation for Estimating Solar Radiation Missing Value in Penang, MalaysiaAzizan Saaban, Mohd Lutfi Zainudin, Mohd Nazari Abu BakarComplete solar radiation data is important in variety of disciplines such as solar radiation development system or solar project which is strongly affected by hourly variation of the solar radiation. However, the available data may contain missing data for several days in the absence of measurement due to several factors such as instrument failure and human errors. In this study, … …Journal of Mathematics and Statistics, Vol. 12, Issue 4 · 28 Dec 2016 · 7,119 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleGlobal Solar Radiation Studies Due to Sunshine Hours and Other Meteorological ParametersMfon David Umoh, Sunday O. Udo, Ye-Obong N. UdoakahMultiple linear regression models were developed to estimate the monthly daily Sunshine Hours using four parameters during a period of eleven years (1997-2007) for locations in South Eastern Nigeria. These locations include Uyo (Latitude 5°18'53.7"N), Calabar (Latitude 5°16'07.6"N), Port Harcourt (Latitude 4°56'26.2"N), Warri (Latitude 5°34'21.0"N), Enugu (Latitude 6°27'42.42"N), Owerri (Latitude 5°38'05.1"N). The parameters include Relative Humidity, Maximum and Minimum temperatures, … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 3 · 30 Sep 2013 · 7,700 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleApplication of Neuro-Fuzzy Techniques for Solar RadiationW. A. Rahoma, U. Ali Rahoma, A. H. HassanProblem statement: The prediction is very useful in solar energy applications because it permits to estimate solar data for locations where measurements are not available. The developed artificial intelligence models predict the solar radiation time series more effectively compared to the conventional procedures based on the clearness index. Approach: The forecasting ability of some models could be further enhanced with … …Journal of Computer Science, Vol. 7, Issue 10 · 11 Aug 2011 · 7,077 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleSolar Radiation at Total Solar Eclipse, 29-March 2006, at TobruqA. H. Hassan, U. Ali RahomaProblem statement: Measurement of the different components of solar radiation and fractions of these components for the global (horizontal and tracker), direct (white and three colors, yellow, red and infrared) and diffuse solar radiation during the solar eclipse, 29 March 2006 at Tobruq, Libya (Lat. 32.08°N and Long. 23.98°E). The time interval of solar eclipse was 2 h: 40 m … …American Journal of Environmental Sciences, Vol. 6, Issue 5 · 31 Oct 2010 · 6,824 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleReference Solar Radiation Year and Some Climatology Aspects of East Coast of West MalaysiaAbdul Majeed Muzathik, Wan Mohd Norsani Bin Wan Nik, Khalid Bin Samo, Mohd Zamri IbrahimProblem statement: This study examined in detail some aspects of radiation climatology for Terengganu state in Malaysia. The geographical co-ordinates of the site are 5°10’N latitude 103°06’E longitude and 5.2 m altitude. Approach: The data used in the present study were taken from a recording data station installed at site by the Malaysian Meteorology Department (2004). In addition to this, … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,854 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleFourier transforms Investigation of Global Solar Radiation at True Noon: in the Desert climatologyU. Ali Rahoma, A.H. HassanThe aim of this work has been to obtain a typical annual time a function by the application of a calculation procedure based on a Fourier analysis to global solar radiation data of nine years at Helwan Egypt from June 1991 to August 1999. This function allows us to estimate the most probable values of the horizontal daily global solar … …American Journal of Applied Sciences, Vol. 4, Issue 11 · 30 Nov 2007 · 7,085 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleSimulation of Solar Radiation SystemM.S. Alam, Sushanta Kumar Saha, M.A.K. Chowdhury et al.In this research work, a mathematical model for simulation of the solar radiation system has been developed by using a system dynamics methodology. Bangladesh is used here for model validation. The simulated results obtained from this model have compared with the experimental results and found reasonably a good agreement. Therefore the performance of the model is to be expected as … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 7,695 accessesView PDFCite