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pro vyhledávání: '"Umar Kangiwa Muhammad"'
Publikováno v:
Open Journal of Renewable Energy and Sustainable Development. 2014:47-55
Wind and solar energy are naturally intermittent renewable energy resources. Wind speed is periodically and seasonally variable and its variability has significant effects on wind turbine electrical power output. This paper estimated the percentage c
Publikováno v:
American Journal of Energy Engineering. 2:23
In recent years solar energy has been strongly promoted as a viable energy source. one of the most simplest and direct application of this energy is the conversion of solar radiation in to heat energy using a devices called sollar collectors [3].In o