A Central-Receiver Solar-Thermal Power Plant uses (2000) heliostats that each have (40 m?) of reflecting surface area, which receives normal solar radiation of (800 W/m2). The receiver converts feedwater from the condenser at (0.07 bar) to steam at (34 bar and 315 C°). No feedwater heaters are used. Assuming absorption by the steam in the receiver to be (60 %) of all radiation incident on the heliostats, and that (20 %) of all receiver energy goes to storage at peak radiation, and that the turbine-generator mechanical-electrical efficiency to be (80 %). Find for the condition at peak radiation: The heat added to the cycle, in (Mj). The turbine steam mass flow rate, in (kg/hr). The generator output, in (MW). а. b. с.

A Central-Receiver Solar-Thermal Power Plant uses (2000) heliostats that each have (40 m?) of reflecting surface area, which receives normal solar radiation of (800 W/m2). The receiver converts feedwater from the condenser at (0.07 bar) to steam at (34 bar and 315 C°). No feedwater heaters are used. Assuming absorption by the steam in the receiver to be (60 %) of all radiation incident on the heliostats, and that (20 %) of all receiver energy goes to storage at peak radiation, and that the turbine-generator mechanical-electrical efficiency to be (80 %). Find for the condition at peak radiation: The heat added to the cycle, in (Mj). The turbine steam mass flow rate, in (kg/hr). The generator output, in (MW). а. b. с.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.44P

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