Second Generation Sodium Heat Pipe Receiver for a USAB V-160 Stirling Engine: Evaluation of On-Sun Test Results Using the Proposed IEA Guidelines and Analysis of Heat Pipe Damage

Author:

Laing D.1,Tra¨bing C.1

Affiliation:

1. German Aerospace Research Establishment (DLR), Institute for Technical Thermodynamics, D-70569 Stuttgart, Germany

Abstract

At the DLR a second generation sodium heat pipe receiver for the Schlaich Bergermann und Partner (SBP) 9-kWe dish/Stirling system has been developed and constructed. Long-term operation occurred from Oct. 1992 until Aug. 1993 at the Plataforma Solar de Almeria (PSA) in Spain, accumulating 950 operating hours. The performance of the SBP 9-kWe system with a sodium heat pipe receiver is evaluated according to the guidelines for dish/Stirling performance evaluation by Stine and Powel, as proposed to the International Energy Agency (IEA). Tests were stopped due to a leak in the receiver absorber surface. The analysis of this damage are reported.

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Reference8 articles.

1. Borgstedt, H. U., and Mathews, C. K., 1987, Applied Chemistry of the Alkali Metals, Plenum, New York.

2. Brost, O., Mack, H., and Wierse, M., 1992, “Heat Pipe Technology: A Technology to Improve Solar-Thermal Power Systems,” Proceedings of the 8th International Heat Pipe Conference.

3. Goebel, O., and Laing, D., 1993, “Second Generation Sodium Heat Pipe Receiver for a USAB V160 Stirling Engine: Development and On-Sun Test Results,” Proceedings of the 28th IECEC Conference, Vol. 2, pp. 2.539–2.545.

4. Laing, D., and Goebel, O., 1991, “Sodium Heat Pipe Receiver for a SPS V160 Stirling Engine: Development, Laboratory, and On-Sun Test Results,” Proceedings of the 26th IECEC, Vol. 5, pp. 363–369.

5. Schiel, W., Keck, T., Kern, J., and Schweitzer, A., 1994, “Long Term Testing of Three 9kW Dish/Stirling Systems,” Proceedings of the ASME International Solar Engineering Conference.

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