Abstract
To estimate the monthly averaged solar radiations (global, diffuse and direct solar radiation) on horizontal surface and tilted surface over 10 stations (districts) in Bangladesh, thirty years monthly averaged data of various meteorological parameters namely the monthly averaged value of maximum temperature, minimum temperature, humidity and sunshine hours were used in this study. Assessment of the solar resources for the solar based renewable energy technologies of Bangladesh may be based upon this kind of measured data analyzed study. This study tried to estimate the monthly averaged solar radiation by presenting data in table and graph and finally analyze through equations and descriptions. Correlation between the measurements of monthly averaged solar radiation and the meteorological parameters was given for the selected 10 stations in Bangladesh. In conclusion, we tried to make a comparison among solar radiation on horizontal surface, fixed 20.83 ° (degree) optimal tilt angle and variable optimal tilt surface at Dhaka station.
Highlights
The social and economic development of a nation is assessed on the basis of energy consumption per capita
An angle for which solar radiation becomes highest is called as optimal tilt angle which has been discussed hereafter
Comparison of Solar Radiation on Horizontal Surface and Tilted Surface at Dhaka Station In January, we have found the value of solar radiation is 5.058 Kwh/m2 day for optimal tilt angle 40 ̊
Summary
The social and economic development of a nation is assessed on the basis of energy consumption per capita. Besides the fast rate of consumption of conventional energy resources, the other very important factor responsible for energy crisis is the odd distribution and consumption of these resources This is to be mentioned here that one-third of the world population consumes about four fifths of the total world energy while a very meager share is left to the majority of the population living in developing or underdeveloped countries. With the rapid industrialization and fast growth rate of energy consumption, the world will soon run out of its conventional fuel This problem demands an urgent and serious attention, especially by the inhabitants of developing and underdeveloped countries, to the husbanding of present resources, and to the short and long-term development of future energy resources. Bangladesh is fairly rich as far as solar radiation is concerned
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