Abstract
High temperature thermal storage in a packed bed is considered for air-based concentrated solar power plants. In this work, the performance of a high temperature sensible heat system has been analyzed using mathematical simulation. Heat transfer and fluid flow equations for a one-dimensional two-phase model has been discretized using explicit center difference scheme in space and Euler forward difference scheme in time. Discretized equations were solved to determine temperatures of different elements of bed, and corresponding temperature of air as a function of space and time coordinates. Temperature distribution of bed elements was utilized to obtain mean bed temperature and energy stored in the bed. These values were used to determine charging efficiency as a function of system parameters, namely void fraction and equivalent diameter. The extensive investigation of parametric effects of important bed parameters, namely element size, void fraction has been done in this work.
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Raghav, G., Nagpal, M., Kumar, S. (2020). Performance Analysis of High Temperature Sensible Heat Solar Energy Storage System. In: Singh, S., Ramadesigan, V. (eds) Advances in Energy Research, Vol. 1. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-15-2666-4_38
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DOI: https://doi.org/10.1007/978-981-15-2666-4_38
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