Affiliation:
1. Department of Mechanical Engineering, Mississippi State University, Mississippi State, MS 39762
Abstract
Previous work by one of the authors entailed modeling of a packed bed thermal energy storage system utilizing phase-change materials (PCM). 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 paper describes the model constructed for the high-temperature thermal energy storage system utilizing multiple families of phasechange materials and presents results obtained in the exercise of the model. Other factors investigated include the effect on system performance due to the thermal mass of the containment vessel wall and variable temperature of the flue gas entering the packed bed during the storage process. The results obtained indicate efficiencies for the system utilizing the five PCM families exceeding those for the single PCM family by as much as 13 to 26 percent. It was also found that the heat transfer to the containment vessel wall could have a significant detrimental effect on system performance.
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Reference27 articles.
1. Adebiyi G. A. , 1991, “A Second-Law Study on Packed Bed Energy Storage Systems Utilizing Phase-Change Materials,” ASME Journal of Solar Energy Engineering, Vol. 113, pp. 146–156.
2. Beasley D. E. , RamanarayananC., and TorabH., 1989, “Thermal Response of a Packed Bed of Spheres containing a Phase-Change Material,” International Journal of Energy Research, Vol. 13, pp. 253–265.
3. Beasley D. E. , and ClarkJ. A., 1984, “Transient Response of a Packed Bed for Thermal Energy Storage,” International Journal of Heat and Mass Transfer, Vol. 27, No. 9, pp. 1659–1669.
4. Bird, R. B., Stewart, W. E., and Lightfoot, E. N., 1960, Transport Phenomena, Wiley, New York, NY.
5. Coberly C. A. , and MarshallW. R., 1951, “Temperature Gradients in Gas Streams Flowing Through Fixed Granular Beds,” Chemical Engineering Progress, Vol. 47, pp. 141–150.
Cited by
36 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献