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52 articles for “solar radiation”
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Research ArticleOpen accessIn the abstractFabrication and Experimental Investigation of PCM Capsules Integrated in Solar Air HeaterMahmud M. Alkilani, Kamaruzzaman Sopian, Sohif MatProblem statement: Thermal Energy Storage (TES) process can reduce the time or rate mismatch between energy supply and energy demand. Organic latent heat materials are suitable to use as storage medium, however, the low thermal conductivity of these materials slow the thermal response during charging and discharging processes. Approach: A solar air heater integrated with (PCM) has been designed, fabricated … …American Journal of Environmental Sciences, Vol. 7, Issue 6 · 11 Jan 2012 · 7,596 accessesView PDFCite
Research ArticleOpen accessIn the abstractAnalytical and Experimental Studies on the Thermal Efficiency of the Double-Pass Solar Air Collector with Finned AbsorberAhmad Fudholi, Kamaruzzaman Sopian, Mohd Hafidz Ruslan et al.Problem statement: The design of suitable air collectors is one of the most important factors controlling the economics of the solar drying. Air type collectors have two inherent disadvantages: Low thermal capacity of air and low absorber to air heat transfer coefficient. Different modifications are suggested and applied to improve the heat transfer coefficient between the absorber plate and air. … …American Journal of Applied Sciences, Vol. 8, Issue 7 · 24 Jun 2011 · 7,417 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Estimation of Rainfall using Fuzzy Set-Genetic Algorithms ModelTeerawat Thongwan, Anongrit Kangrang, Sahalaph HomwuttiwongProblem statement: Damaged by floods are natural disasters that have violence cause significant damage and economic and social. If we can prevent disasters that may occur in advance is important. So an estimated rainfall data is important information for prevention disasters. Approach: The objective of this study is to apply a fuzzy set theory to estimate rainfall. The genetic algorithm … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 1 · 28 Jan 2011 · 8,027 accessesView PDFCite
Research ArticleOpen accessIn the abstractComputational Study of Hybrid Water Heater with Evacuated Glass Tube Solar Collector and Rice Husk CombustionPiyanun Charoensawan, Chaiwat WannagositProblem statement: The thermal performance modeling of hybrid water heater with evacuated glass tube solar collector and flue gas of rice husk combustion was developed. The solar global radiation and ambient air temperature data used in the system modeling belongs Phitsanulok province from 7 am-5 pm in the summer season. Approach: The system can be divided into two parts, i.e., … …Energy Research Journal, Vol. 1, Issue 2 · 31 Oct 2010 · 7,598 accessesView PDFCite
Research ArticleOpen accessIn the abstractCritical Retrospect on Conventional and Luminescent Solar Concentration DevicesHamzah Abdul-Rahman, Chen WangProblem statement: Conventional solar concentrators are only sensitive for the beam radiation and they function poorly in overcast sky conditions. Even under a clear sky condition, trackers are always needed for conventional solar concentrators. Static concentrators always come with a poor concentration rate without a tracker and the light concentrated by normal Luminescent Solar Concentrators (LSC) could not be transported … …American Journal of Environmental Sciences, Vol. 6, Issue 5 · 31 Oct 2010 · 6,930 accessesView PDFCite
Research ArticleOpen accessIn the abstractInfluence of Geometry and Orientation on Flank Insolation of Streets in an Arid Climate CityMehrdad Mazloomi, Ahmad Sanusi Hassan, Parmis Naraghi Bagherpour, Mohd Rodzi IsmailProblem statement: Whilst at the design stage the various aspects of design impact must be taken into account, the incident solar radiation, insolation, is a key to many environmental aspects of street canyons. In this regard, the configuration of an urban street has a decisive role in magnitude of the solar radiation which it receives on its flank. This study … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 3 · 30 Sep 2010 · 9,006 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of γ- ray, Microwave Heating and Solar Irradiation of Apple Juice on Organochlorinated Pesticides ResiduesK. Al-Ismail, S. Herzallah, H. DmoorThis study was conducted to evaluate the effect of solar radiation, microwave heating and γ-irradiation on the Organochlorinated Pesticide (OCP’s) in apple juice. The solar radiation caused a destruction of 20% after 20 hr exposure to sunlight compared to 12% reduction for the tested OCP’s after microwave heating for 10 min. On the other hand, the use of γ-irradiation leads … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 1 · 31 Mar 2009 · 8,165 accessesView PDFCite
Research ArticleOpen accessIn the abstractTreatment of Wastewater by Natural Lagoon for its Reuse in IrrigationM. Driche, D. Abdessemed, G. NezzalThe process of natural lagoon consists in purifying the waste water by simple flow of the effluent in not very deep ponds where proliferate bacteria, algae and other living organisms, under a surrounding air and in the presence of a solar radiation. For this study, which is spread out over 3 years (2004-2006) and which still continues, we chose the … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 7,187 accessesView PDFCite
Research ArticleOpen accessIn the abstractExperimental Investigation of Single Pass, Double Duct Photovoltaic Thermal (PV/T) Air Collector with CPC and FinsM. Ebrahim Ali Alfegi, Kamaruzzaman Sopian, Mohd Yusof Hj Othman, Baharudin Bin YatimThe temperature of photovoltaic modules increases when it absorbs solar radiation, causing a decrease in efficiency. This undesirable effect can be partially avoided by applying a heat recovery unit with fluid circulation (air or water) with the photovoltaic module. Such unit is called photovoltaic/thermal collector (pv/t) or hybrid (pv/t). An experimental investigation of a solar air heater with photovoltaic cell … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 6,992 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Temperature Trend In Contaminated Tidal Flat In The Ariake Sea, JapanM. A. Moqsud, Shigenori Hayashi, y. j. Du, Daisuke suetsuguThermal environment of the tidal flat is one of the major parts of the contaminated geo-environment of the Ariake Sea. The activities of marine ecosystem in tidal flats depend strongly on the thermal environment. In order to get a clear idea about the thermal environment of the tidal flats of the Ariake Sea, two study areas, Iida and Higashiyoka tidal … …American Journal of Environmental Sciences, Vol. 2, Issue 3 · 30 Sep 2006 · 6,750 accessesView PDFCite