A McDonnell-Douglas/Rocketdyne (MDAC) once-through central receiver design has been selected as the plant's solar-to-electrical energy conversion device for the Barstow, California 10MW Solar Thermal Pilot Plant. In order to augment the data which will be produced by the Pilot Plant operation and to assist in the detail design of the Pilot Plant receiver itself, an early series of tests on a full-size MDAC receiver panel has been planned at the DOE Central Receiver-Solar Thermal Test Facility (CR-STTF) in Albuquerque. A dynamic digital computer simulation of that STTF-MDAC receiver panel configuration has been developed by the Aerospace Corporation. The purpose of such a simulation is to permit early, inexpensive studies of proposed test sequences and rapid investigations of potential control schemes. The results of those studies could give experimenters valuable insight into equipment performance parameters, and thus permit prudent limiting of actual hardware test time on the more expensive facility. The program contains modules to simulate the collector field, cooling subsystem, steam depressurization and desuperheat subsystem, feedwater regenerative heat exchanger, MDAC receiver panel, and control subsystem. Facility controllers have been modeled pursuant to data received from STTF personnel, but in one case (the Feedwater Pressure Control Loop) a simulation gain constant had to be altered to prevent instability. Two other controllers, the Feedwater Inlet Temperature and the Receiver Outlet Steam Temperature, were also modeled with gain constants selected by Aerospace in the absence of any specified values. The results reported here indicate that the gains selected by Aerospace for that steam temperature controller are not optimum and must be further refined. (ERA citation 09:025712)


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    Title :

    Preliminary Simulation of the MDAC Receiver Panel Test Sequences to Be Implemented at the CR-STTF (Central Receiver-Solar Thermal Test Facility)


    Publication date :

    1979


    Size :

    51 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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