Simulation of a high temperature thermal energy storage system employing several families of phase-change storage material
- Mississippi State Univ., MS (United States)
Previous work by the author entailed modeling of the Packed Bed Thermal Energy Storage System, utilizing Phase-Change Materials, and a performance evaluation of the system based on the Second Law of thermodynamics. A principal conclusion reached is that the use of a single family of phase-change storage material may not in fact produce a thermodynamically superior system relative to one utilizing sensible heat storage material. This prompted us to modify our model so that we could investigate whether or not a significantly improved performance may be achieved via the use of multiple families of phase-change materials instead. Other factors investigated in the present work include the effect on system performance due to the thermal mass of the containment vessel wall, varying temperature and mass flow rate of the flue gas entering the packed bed during the storage process, and thermal radiation which could be a significant factor at high temperature levels. The resulting model is intended to serve as an integral part of a real-time simulation of the application of a high temperature regenerator in a periodic brick plant. This paper describes the more comprehensive model of the high temperature thermal energy storage system and presents results indicating that improved system performance could be achieved via a judicious choice of multiple families of phase-change materials.
- Research Organization:
- USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (United States). Office of Energy Management; Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- OSTI ID:
- 106797
- Report Number(s):
- CONF-890351-; ON: DE95016394; TRN: 95:006984-0010
- Resource Relation:
- Conference: Thermal energy storage program review, New Orleans, LA (United States), 15-17 Mar 1989; Other Information: PBD: Mar 1989; Related Information: Is Part Of U.S. Department of Energy thermal energy storage research activities review: 1989 Proceedings; Hoffman, H.W. [ed.] [PAI Corp., Oak Ridge, TN (United States)]; Tomlinson, J.J. [ed.] [Oak Ridge National Lab., TN (United States)]; PB: 357 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Using Encapsulated Phase Change Material in Thermal Energy Storage for Baseload Concentrating Solar Power (EPCM-TES)
A second-law study on packed bed energy storage systems utilizing phase-change materials