Several simplified design procedures for solar energy systems require monthly average meteorological data. Monthly average daily totals of the solar radiation incident on a horizontal surface are available. However, radiation data on tilted surfaces, required by the design procedures, are generally not available. A simple method of estimating the average daily radiation for each calendar month on surfaces facing directly towards the equator has been presented by Liu and Jordan [1]. This method is verified with experimental measurements and extended to allow calculation of monthly average radiation on surfaces of a wide range of orientations.

Calculation of monthly average insolation on tilted surfaces

The use of solar energy in recent years has reached a remarkable edge. The continuous research for an alternative power source due to the perceived scarcity of fuel fossils is its driving force. It has become even more popular as the cost of fossil fuel continues to rise. The earth receives in just 1 h, more energy from the sun than what we consume in the whole world for 1 year. Its application was proven to be most economical, as most systems in individual uses requires but a few kilowatt of power. This paper reviews the present day solar thermal technologies. Performance analyses of existing designs (study), mathematical simulation (design) and fabrication of innovative designs with suggested improvements (development) have been discussed in this paper.

A review of solar thermal technologies

Solar radiation model

Comparative study of Ångström's and artificial neural networks' methodologies in estimating global solar radiation

Estimation of monthly average daily global solar irradiation using artificial neural networks

A morphological study of GPS-TEC data at Agra and their comparison with the IRI model

Estimation of global solar radiation in Uttar Pradesh (India) and comparison of some existing correlations

between the two. Further, GIMs of TEC have been analysed for five different latitudes along the common meridian of 80 0 E longitude. The present study has been carried out for three months of the year 2009 in each season. The role of equatorial ionization anomaly (EIA) crest is clearly visible on TEC data. These results are significant for Agra station which is a new location in the low latitude sector of Indian region.

http://nopr.niscair.res.in/bitstream/123456789/11195/1/IJRSP%2040%281%29%2026-36.pdf

O.P. Singh

Papers

A morphological study of GPS-TEC data at Agra and their comparison with the IRI model

Estimation of global solar radiation in Uttar Pradesh (India) and comparison of some existing correlations

Diurnal and seasonal variation of GPS-TEC during a low solar activity period as observed at a low latitude station Agra

Performance study of solar cooker with modified utensil

Empirical relationship to estimate global radiation from hours of sunshine