Abstract: The purpose of this research paper is to develop an understanding that how to build a solar water geyser (SWG) that provides hot water during winter season and distilled water during summer. Calculations were the initial steps to determine the area, size and capacity of storage tank. The amount of solar radiations falling in different areas and different seasons is different. Therefore after calculations, the physical model may have sight differences from theoretical results. The solar geyser used is passive type because there is no external pump and flow is due to gravity and thermo-siphoning. The inclination angle of the solar collector can be changed as it is made adjustable by using a new concept of screw jack as used in raising cars and trucks. The solar geyser consists of copper tubes painted dull black because of the fact that black color absorbs maximum amount of radiations. The solar energy is allowed to be entrapped in the collector as it is laminated with glass and convection of cold air is prevented and the warm water is not allowed to lose most of its thermal energy, this procedure is also called “green house effect”. There is a black flat plate so the maximum sunlight can be absorbed by the back side of the tubes also. The storage tank has a capacity of 80 liters which is almost satisfactory to fulfill the demand of one family. There is also a calculated thermal insulation of the tank that prevents hot water from becoming cold at nights or low temperatures. Therefore there is no consumption of either electricity or natural gas. This geyser can be used as an economical mass product and installed in domestic as well as different industries also. As solar geyser needs very little or no maintenance, therefore it could save economy of a nation to a great extent.
Keywords: Solar Geysers, Mathematical Modeling Black Body Radiation, Green House effect, Thermal energy, Thermal Insulation.
Title: Mechanical Modeling of a Solar Water Geyser
Author: Shehrayar Ahmed, Dr. Liaquat ali Najmi
International Journal of Mechanical and Industrial Technology (IJMIT)
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