Solar Radiation Literature Review

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Chapter II REVIEW OF LITERATURE 2.1 Solar radiation Naoto [1] has done experiments on the In situ Measurements of the Incoming Solar Radiation by Voluntary Ships in Western Pacific. He performed the in situ measurement of the downward short wave radiation in western Pacific Ocean in cooperation of voluntary ship in 1990 in order to obtain the much more precise knowledge of the downward short wave radiation at sea’s surface than before. The result of observations from the autumn 1990 through the spring 1992 was discussed in this paper. Comparison of the observed daily mean downward short wave radiation , with that of the estimated from the observed cloudiness by using the Reed (1977) formula was also presented to show necessity of the in situ…show more content…
The major component unique to active systems is the solar collector. This device absorbs the incoming solar radiation, converting it into heat at the absorbing surface, and transfers this heat to a fluid (usually air or water) flowing through the collector. The warmed fluid carries the heat either directly to the hot water or space conditioning equipment or to a storage subsystem from which can be drawn for use at night and on cloudy days. A precise and detailed analysis of a solar flat plate collector is quite complicated because of the many factors involved. Efforts have been made to combine a number of the most important factors into a single equation and thus formulate a mathematical model which will describe the thermal performance of the collector in a computationally efficient manner. N. Bal [6] has done experimental studies of radiative heat transfer in a translucent fuel sample exposed to different spectral sources. Radiative heat transfer to a solid is a key mechanism in fire dynamics, and in-depth absorption is especially of importance for translucent fuels. The sample-heater interaction for radiative heat transfer is…show more content…
The author brings forth the various sources of infrared signature as well as a radar signature in a naval platform. The author also brings various methodologies for reduction of ships vulnerability from the enemy such as reduction of radar cross section which will decrease long range detection and classification, improved IR decoy effectiveness by development of decoy in dilution or discretion mode, IR signature reduction which will help to postpone the lock on and extend the time frame for the decoy in distraction and reduction of exhaust plume temperatures by use of IRSS ships. Daniel[17] brings out the Infrared signature management (IRSM) techniques in the field of aeronautics, following a brief overview of IRSM and the current thermodynamics limitations, theoretical and experimental challenges to the second law are reviewed, second law based infrared signature management (SL-IRSM) strategies are considered for two representative military scenario: an underground installation and second law based jet engine. This article brings second law challenges and Infrared stealth and cloaking. Birk and Davis[18] brings forth the infrared signature is produced as the result of the temperature possessed by the body. The signature produces an

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