Cyclic operation of molten-salt thermal energy storage in thermoclines for solar power plants

Applied Energy

Volumn 103, Issue , 2013, Pages 256-265

  Yang, Zhen ^a   Garimella, Suresh V ^a  

^a PURDUE UNIVERSITY   (United States)

Author keywords

Cyclic operation; Energy storage; Molten salt; Solar thermal energy; Thermocline

Indexed keywords

ENERGY STORAGE; FILLERS; HEAT STORAGE; NUSSELT NUMBER; PARTICLE SIZE; REYNOLDS NUMBER; SOLAR ENERGY; SOLAR POWER PLANTS; STREAM FLOW; TANKS (CONTAINERS); TEMPERATURE DISTRIBUTION;

CYCLE EFFICIENCY; CYCLIC BEHAVIOR; CYCLIC OPERATION; DARCY LAW; ENERGY EQUATION; FILLER PARTICLES; FINITE-VOLUME; FLOW DISTANCE; GOVERNING EQUATIONS; LENGTH RATIO; MOLTEN SALT; MOMENTUM EQUATION; POWER CAPACITY; SOLAR THERMAL ENERGY; SOLAR THERMAL POWER PLANTS; TANK HEIGHT; TEMPERATURE PROFILES; THERMAL CHARACTERISTICS; THERMAL STORAGE SYSTEM; TWO TEMPERATURE MODEL;

FUSED SALTS;

EFFICIENCY MEASUREMENT; ENERGY FLOW; FINITE VOLUME METHOD; FLOW FIELD; NUMERICAL MODEL; PARTICLE SIZE; POROUS MEDIUM; POWER PLANT; SOLAR POWER; THERMAL POWER; THERMOCLINE;

EID: 84871723002     PISSN: 03062619     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.apenergy.2012.09.043     Document Type: Article

References (27)

1. Pacheco J.E., Showalter S.K., Kolb W.J. Development of a molten-salt thermocline thermal storage system for parabolic trough plants. J Sol Energy - T ASME 2002, 124:153-159.
2. Kearney D., Herrmann U., Nava P. Assessment of a molten salt heat transfer fluid in a parabolic trough solar field. J Sol Energy - T ASME 2003, 125:170-176.
3. Pacheco JE, Gilbert R. Overview of recent results of the solar two test and evaluations program, Paper number RAES99-7731. In: Hogan R, Kim Y, Kleis S, O'Neal D, Tanaka T, editors. Renewable and advanced energy systems for the 21st century. Proceedings of the 1999 ASME International Solar Energy Conference, Maui, HI; April 11-14 1999 [CD-Rom].
4. Kolb GJ, Hassani V. Performance analysis of thermocline energy storage proposed for the 1MW SAGUARO solar trough plant, Paper number ISEC2006-99005. In: Proceedings of ISEC 2006 ASME international solar energy conference, Denver, CO; July 8-13 2006.
5. Brosseau D., Kelton J.W., Ray D., Edgar M. Testing of thermocline filler materials and molten-salt heat transfer fluids for thermal energy storage systems in parabolic trough power plants. J Sol Energy - T ASME 2005, 127:109-116.
6. Price H. A parabolic trough solar power plant simulation model. [accessed 19.07.10]. http://www.nrel.gov/docs/fy03osti/33209.pdf.
7. Kearney D. Engineering evaluation of a molten salt HTF in a parabolic trough solar field, NREL, Contract No. NAA-1-30441-04, 2001.
8. Koh J.C.Y., Colony R. Analysis of cooling effectiveness for porous material in a coolant passage. ASME J Heat Transfer 1974, 96:324-330.
9. Koh J.C.Y., Stevens R.L. Enhancement of cooling effectiveness by porous materials in coolant passage. ASME J Heat Transfer 1975, 97:309-311.
10. Beasley D.E., Clark J.A. Transient response of a packed bed for thermal energy storage. Int J Heat Mass Transfer 1984, 27:1659-1669.
11. Paek J.W., Kang B.H., Hyun J.M. Transient cool-down of a porous medium in pulsating flow. Int J Heat Mass Transfer 1999, 42:3523-3527.
12. Singh C., Tathgir R.G., Muralidhar K. Energy storage in fluid saturated porous media subjected to oscillatory flow. Heat Mass Transfer 2009, 45:427-441.
13. El-Sebaii A.A., Aboul-Enein S., Ramadan M.R.I., El-Bialy E. Year round performance of double pass solar air heater with packed bed. Energy Convers Manage 2007, 48:990-1003.
14. Mawire A., McPherson M., van den Heetkamp R.R.J., Mlatho S.J.P. Simulated performance of storage materials for pebble bed thermal energy storage (TES) systems. Appl Energy 2009, 86:1246-1252.
15. Mawire A., McPherson M. A feedforward IMC structure for controlling the charging temperature of a TES system of a solar cooker. Energy Convers Manage 2008, 49:3143-3154.
16. Fukai J., Kanou M., Kodama Y., Miyatake O. Thermal conductivity enhancement of energy storage media using carbon fibers. Energy Convers Manage 2000, 41:1543-1556.
17. Guillot S., Faik A., Rakhmatullin A., Lambert J., Veron E., Echegut P., et al. Corrosion effects between molten salts and thermal storage material for concentrated solar power plants. Appl Energy 2012, 94:174-181.
18. Yang Z., Garimella S.V. Thermal analysis of solar thermal energy storage in a molten-salt thermocline. Sol Energy 2010, 84:974-985.
19. Xu C., Wang Z., He Y., Li X., Bai F. Sensitivity analysis of the numerical study on the thermal performance of a packed-bed molten salt thermocline thermal storage system. Appl Energy 2012, 92:65-75.
20. Yang Z., Garimella S.V. Molten-salt thermal energy storage in thermocline under different environmental boundary conditions. Appl Energy 2010, 87:3322-3329.
21. Flueckiger S., Yang Z., Garimella S.V. An integrated thermal and mechanical investigation of molten-salt thermocline energy storage. Appl Energy 2011, 88:2098-2105.
22. HITEC heat transfer salt, Costal Chemical Co., L.L.C., Brenntag Company. [accessed 19.07.10]. http://www.coastalchem.com/.
23. Gonzo E.E. Estimating correlations for the effective thermal conductivity of granular materials. Chem Eng J 2002, 90:299-302.
24. Wakao N., Kaguei S. Heat and mass transfer in packed beds 1982, Gordon and Breach Science Publishers, New York.
25. Issa R.I. Solution of implicitly discretized fluid flow equations by operator splitting. J Comput Phys 1986, 62:40-65.
26. Fluent 6.3 User's Guide, ANSYS Inc., Lebanon, NH; 2006.
27. Qin F.G.F., Yang X.P., Ding Z., Zuo Y.Z., Shao Y.Y., Jiang R.H., et al. Thermocline stability criterions in single-tanks of molten salt thermal energy storage. Appl Energy 2012, 97:816-821.