Abstract
Parabolic trough solar thermal power plants are at present the cheapest option for utility scale solar electricity production. At present several projects are under development in Spain, in the USA, Egypt, Morocco, Mexico, Algeria and Iran. The levelised cost of electricity (LCE) for solar thermal power plants is in the range of 13-21 €Cts/kWh. Accordingly, subsidies are necessary to bridge the gap between current LCE’s and market price. To achieve a sustainable competitiveness significant cost reduction is required. One possibility for cost reduction is increasing the efficiency. So far synthetic oil is used as a heat transfer fluid (HTF) in the absorber tubes of the collector field. This HTF limits the upper temperature of the power cycle to 370°C and thus the achievable efficiency to approx. 38%. Alternative HTF’s are under investigation. This paper compares the different HTF’s with respect to the operation temperature, overall operation aspects, storage concepts safety aspects and of course costs.
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References
Benz N.: Next generation receivers, NREL Trough Work Shop, March 7-8, Golden, http://www.nrel.gov/csp/troughnet/wkshp_2007.html, (2007).
Eck M., Hirsch T.: Dynamics and control of parabolic trough collector loops with direct steam generation, Solar Energy, Vol. 81 (2007), pp. 268–279.
Fabrizi F.: Trough molten salt HTF filed test experience, NREL Trough Work Shop, March 7–8, Golden, http://www.nrel.gov/csp/troughnet/wkshp_2007.html, (2007).
Kearney D., Herrmann U., Nava P., Kelly B., Mahoney R., Pacheco J., Cable R., Potrovitza N., 2 D., Price H.: Assessment of a molten salt heat transfer fluid in a parabolic trough solar field, J. of Solar Energy Eng., Vol. 121 (2003), pp. 170–176.
Kelly B., Barth D., Brosseau D., Konig S., 7 F.: Nitrate and Nitrite/Nitrate Salt Heat Transport Fluids, NREL Parabolic Trough Workshop 2007, March 9, Golden, http://www.nrel.gov/csp/troughnet/wkshp_2007.html, (2007).
Laing D., Steinmann W.-D., Fiß M., Tamme R., Brand T., Bahl C.: Solid media thermal storage development and analysis of modular storage operation concepts for parabolic trough power plants, 13th International Symposium on Concentrated Solar Power and Chemical Energy Technologies, June 20–23 (2006) Seville, Spain.
Lüpfert E., Riffelmann K.-J., Price H., Moss T., Experimental analysis of overall thermal properties of parabolic trough receivers, 13th International Symposium on Concentrated Solar Power and Chemical Energy Technologies, June 20–23 (2006) Seville, Spain.
Marton J., Berze Z.: A new fluid for the CSP which could make a new market of the tower and trough systems, 13th International Symposium on Concentrated Solar Power and Chemical Energy Technologies, June 20–23 (2006) Seville, Spain.
Moens L., 2 D.M.: Advanced heat transfer and thermal storage fluids, Proceedings of ISEC 2005 International Solar Energy Conference, August 6–12, Orlando (2005).
Pacheco J.E. (Ed.): Final Test and Evaluation Results from the Solar Two Project, Sandia Report SAND2002-0120, (2002).
Pacheco J.E., Showalter S.K., Kolb W.J.: Development of a molten salt thermocline thermal storage system for parabolic trough plants, Proceedings of ASME Solar Forum 2001, April 21–25, Washington DC (2001).
Price H., Lüp fert E., Kearney D., ZarzaE., Cohen G., Gee R., Mahoney R.: Advances in parabolic trough solar power plants, J. of Solar Energy Eng., Vol. 124 (2002), pp. 109–125.
Rubbia C.: Advances in Solar Energies: looking into the future, Key note lecture, 13th International Symposium on Concentrated Solar Power and Chemical Energy Technologies, June 20–23 (2006) Seville, Spain.
Steinmann W.-D., Tamme R.: Latent heat storage for solar steam systems, 13th International Symposium on Concentrated Solar Power and Chemical Energy Technologies, June 20–23 (2006) Seville, Spain.
Wu B., Reddy R.G., Rogers R.D.: Novel ionic liquid thermal storage for solar thermal electric power systems, Proceedings of ASME Solar Forum 2001, April 21–25, Washington DC (2001).
Zarza E., ValenzuelaL., León J., Hennecke K., EckM., Weyers H.-D., Eickhoff M.: Direct Steam Generation in Parabolic Troughs Final Results and Conclusions of the DISS Project, Energy, Vol. 29 (2004), pp. 635–644.
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© 2008 Tsinghua University Press, Beijing and Springer-Verlag GmbH Berlin Heidelberg
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Eck, M., Hennecke, K. (2008). Heat Transfer Fluids for Future Parabolic Trough Solar Thermal Power Plants. In: Goswami, D.Y., Zhao, Y. (eds) Proceedings of ISES World Congress 2007 (Vol. I – Vol. V). Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75997-3_369
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DOI: https://doi.org/10.1007/978-3-540-75997-3_369
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