01739nas a2200169   4500008004100000022001400041245006500055210006200120300001400182490000700196520121000203653001801413100002701431700001901458700002101477856007101498       2012                        eng d  a0301-421500aAn analysis of costs of parabolic trough technology in India0 aanalysis of costs of parabolic trough technology in India  a407 - 4190 v483 aThere is a global resurgence in solar thermal power across the world. This paper provides a transparent framework for calculating the cost of generated electricity from a concentrated solar power (CSP) plant and the internal rate of return on equity. The different factors contributing to the capital cost and generation cost of \{CSP\} technology have been discussed. The effect of variation of plant size, solar insolation and discount rate has been shown. India has launched the Jawaharlal Nehru National Solar Mission (JNNSM) and plans to install 20&nbsp;GW of grid connected solar power by 2022. An analysis of the bids received in the National Thermal Power Corporation’s Vidyut Vyapar Nigam Ltd. (NVVN) bidding process, indicates that successful companies have access to low interest capital (effective discount rate ranging from 6.3–12.2%). With the current generation cost of 11–12 Rs/kW&nbsp;h (24–25 \{US\} Cents/kW&nbsp;h), an achievable target for \{CSP\} in the future is likely to be 6.5–7 Rs/kW&nbsp;h (14–15 \{US\} Cents/kW&nbsp;h). This may be possible through reductions in solar field and power block costs combined with increases in collector and overall plant efficiency.10aCost analysis1 aKrishnamurthy, Pranesh1 aMishra, Shreya1 aBanerjee, Rangan  uhttp://www.sciencedirect.com/science/article/pii/S030142151200453301644nas a2200169   4500008004100000022001400041245009500055210006900150300001600219490000700235520106600242653003201308100002401340700001801364700002101382856007101403       2012                        eng d  a0038-092X00aAnalysis of heat losses from a trapezoidal cavity used for Linear Fresnel Reflector system0 aAnalysis of heat losses from a trapezoidal cavity used for Linea  a1313 - 13220 v863 aA Computational study to investigate the heat loss due to radiation and steady laminar natural convection flow in a trapezoidal cavity having eight absorber tubes for a Linear Fresnel Reflector (LFR) solar thermal system with uniformly heated tubes and adiabatic top wall and side walls has been performed. The losses due to convection and radiation were considered from the bottom glass cover. The results are validated with experimental data. Radiative component of losses from the cavity was found to be dominant which contributes around 80–90%. Heat loss characteristics have been studied for cavities of different depths. Simulations have been carried out for various values of heat transfer coefficient based on the wind speed below the glass surface. Effect of emissivities of the tubes on the heat loss has also been simulated. Flow pattern and isotherms inside the cavity for various depths have been analyzed. Finally, the correlation between the total average Nusselt number and its influencing parameters has been obtained for the proposed cavity.10aNusselt number correlations1 aSahoo, Sudhansu, S.1 aSingh, Suneet1 aBanerjee, Rangan  uhttp://www.sciencedirect.com/science/article/pii/S0038092X12000394