ANALYSIS OF FIRST AND SECOND LAWS OF THERMODYNAMICS AND THERMOECONOMICS OF SENSIBLE HEAT STORAGES
DOI:
https://doi.org/10.59627/cbens.2008.1369Keywords:
Sensible Heat, Solar Energy, Entropy Generation, ExergyAbstract
In solar heating systems there is a need for thermal energy storage systems. In these systems the thermal energy can be stored by sensible or latent heat and it is of technical and scientific interest to design low cost and efficient storage units. For this purpose the thermodynamical analysis is widely used. The main objective of this work is to make an analysis of first and second laws of thermodynamics and thermoeconomics of a simple thermal energy storage system. This system consists of a mass of a liquid acting as the thermal energy storage medium and a stream of hot gas as the heat transfer fluid. The analysis is carried out for charging and discharging processes. A case study is performed to illustrate the problem.
Downloads
References
Badar, M. A. Zubair, S. M. Al-Farayedhi, A. A. 1993. Second-law-based thermoeconomic optimization of a sensible
thermal energy storage system, Energy, vol. 18, pp. 641-649, 1993.
Badar, M. A. Zubair, S. M. On thermoeconomics of s sensible heat, thermal energy storage system, ASME J. Solar
Energy Engineering, vol. 117, pp. 255-259, 1995.
Bejan, A., 1978. Two thermodynamic optima in the design of sensible heat units for energy storage, Journal of Heat Transfer, vol. 100, pp. 708-712, 1978.
Bejan, A., 1996, Entropy Generation Minimization, CRC Press.
Domanski, R. Fellah, G. 1995. Exergy as a tool for designing and operating thermal storage units, Biuletyn Instytutu Technik Cieplnej Politechniki Warszawskiej, vol. 81, pp. 24-45, 1995.
Domanski, R. Fellah, G. 1998. Thermoeconomic analysis of sensible heat, thermal energy storage systems, Applied Thermal Engineering, vol. 18, n. 8, pp. 693-704.
Krane, R. J. 1987. A second law analysis of the optimum design and operation of thermal energy storage systems, Int. J. Heat Transfer, vol. 30, pp. 43-57, 1987.
Moran, M. J. Shapiro, H. H, 2002, Princípios de Termodinâmica para Engenharia, LTC Editora.
