J. Phys. IV France 09 (1999) Pr3-525-Pr3-530
Internal film receiver possibilities for the third generation of central receiver technologyJ. León1, M. Sánchez2 and J.E. Pacheco3
1 Ciemat-PSA, Carretera de Senés s/n, 04700 Tabernas, Almería, Spain
2 Solargen Europe Ltd., Overmoor Farm, Neston Corsham, Wilts SN13 9TZ, U.K.
3 Sandia National Laboratories, P.O. Box 5800, MS-0703 Albuquerque, NM 87185, U.S.A.
During the last few years, a 0.5 MWt internal film receiver type was developed, mounted and tested at the Plataforma Solar de Almería, Spain. The chief goal was to test the feasibility of this concept operability and acceptable performance. In order to find out what the real performance is, several objectives were planned like measuring the heat transfer coefficient between salt film and panel surface, studying the behavior of the panel coating, checking the maximum allowable incident flux as well as the salt flow rate and the way to measure it. The maximum power on the panel expected was reached with flat distribution without any damage, in spite of later calculations which advised prudence. Thus the this type of receiver's potential can be considered very high. Other objectives, such as reducing the original power consumption and minimizing the heat losses were also reached. The obtained efficiency was very close of the expectations. We are optimistic taking into account the different parts which could be improved. Most of the problems appeared were solved during the test campaign while the roots of the unsolved problems were known and the acquired knowledge allows us to avoid them in a future receiver.
© EDP Sciences 1999