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Radiation Cooling
Published in Ali Jamnia, Practical Guide to the Packaging of Electronics, 2016
The major complication with the view factor calculation is the possibility of partial blocking or “shadowing” between two surfaces by an intervening body. Three types of shadowing may exist between two surfaces: total self-shadowing, partial self-shadowing, and third surface shadowing. An in-depth discussion of this topic is beyond the scope of this book. In general, an accurate calculation of view factors is a time- and computation-intensive task.
Power loss minimization in radial distribution systems with obstructed solar astronomical model and temperature effect using grey wolf optimization technique
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Aliva Routray, Khyati D Mistry, Sabha Raj Arya
In this work, few technical points are emphasized as, The objective of the work is focused on minimizing the line losses in any RDS.Distribution Generation (DG) allocation is implemented to the RDS system as a source of additional energy supply to the existing network.Solar Energy as DG is employed to the system with a consideration of external factors like Solar Astronomical ModelScaled Astronomical ModelObstructed Astronomical ModelAmbient Temperature ModelTo implement the obstruction model, scaling parameter and obstruction parameter are considered for the specific solar farm location. These values are generated with an evaluation of old measured insolation data and available global insolation data from NASA website.The PV modules installation in the solar farm considers the self-shadowing effect so as to minimize the shadow losses of solar panels and to extract the maximum power from the farm. The solar farm area and DG power capacity is decided according to the size of the test bus system.The system analysis is carried out with IEEE-15 bus RDS and IEEE-28 bus RDS.The optimum position of DG placement is decided by using GWO algorithm for which the system will give the most minimum line losses being the primary objective of the work.