Guangdong Z., Tim W., Wagner M.J., Chuck K., History, current state, and future of linear Fresnel concentrating solar collectors. Tsekouras P., Tzivanidis C., Antonopoulos K., Optical and thermal investigation of a linear Fresnel collector with trapezoidal cavity receiver. (accessed on April 28, 2019)įrancia G., Pilot plants of solar steam generation systems. Matthias G., Advanced CSP teaching materials: Chapter 6 Linear Fresnel technology. Najla E.G., Halima D., Sofiane B., Noureddine S., A comparative study between parabolic trough collector and linear Fresnel reflector technologies.
Guangdong Z., Development of an analytical optical method for linear Fresnel collectors. K −4 φĭeepak B., Sudhakar K., Modeling and performance simulation of 100 MW LFR based solar thermal power plant in Udaipur India.m −1 q ∲ 3SolAbsĬoncentrated solar irradiance on absorber pipe/W.m −1 q ∲ 36convĬonvective heat loss to ambient air/W.m −1 q ∲ 12convĬonvective heat transfer to the working fluid/W.m −2 IAM:Ĭonduction from outer to inner pipe/W.Total irradiation the ground receives from the sun/W View factor of the surface with respect to the ground G d SolTrace™ analysis indicated significant spillage loss when a conventional-LFR was used without a secondary reflector or slight curvature of the mirrors. Also, there was an average increase of useful heat by 3 times in the month of February and 4.7 times in the month of September. For greenhouse-LFR, the maximum thermal efficiency was 73.2% whereas for conventional-LFR it was 37.2%. The results concluded that the greenhouse-LFR is better than the conventional-LFR as it had higher efficiency and useful heat with lesser heat losses. More detailed optical analysis was further performed for conventional-LFR considering the seasonal variations. Sets of non-linear equations for each system were solved using Newton-Raphson method. A complete thermal and optical analysis was presented for modeling and performance evaluation of the solar field of both conventional-LFR and novel greenhouse-LFR. It was expected that such an enclosure can: (1) increase the incoming solar radiation, (2) further improve the overall efficiency due to simplified cleaning process and (3) reduce the capital cost for the construction of LFR support system. For achieving the same objective, this study presents a novel concept where a conventional LFR is enclosed in a greenhouse called greenhouse-LFR. In recent past, Linear Fresnel Reflector systems have received great attention and novel designs have been proposed keeping in view the objective to enhance its functionality and performance. Concentrating solar power technology is one of the most promising alternative energy technologies.
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