Abstract
To utilize solar energy, the solar irradiance of the place where it is being used should be known, including the type of day and the number of sunshine hours or daylength. The days of a year can be divided into four types, namely, clear day (blue sky), hazy day, partially hazy and cloudy day, and completely cloudy day, based on the ratio of daily diffuse to daily global radiation and the number of sunshine hours (Singh and Tiwari [32]). Their criteria are given in Table 3.1.
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Dincer, I., Joshi, A.S. (2013). Solar Energy Aspects. In: Solar Based Hydrogen Production Systems. SpringerBriefs in Energy. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7431-9_3
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DOI: https://doi.org/10.1007/978-1-4614-7431-9_3
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