Question

Question 1 The following diagram shows a solar thermal power system. The average daily overall plant (solar- to-electric) efficiency is 20 %. Solar trough collectors have an approximate efficiency of 60 % . Efficiency of the steam-turbine is about 50 % . The energy conversion efficiency of the generator is 98%. (a) Calculate other losses that are unaccounted for in the system. (b) List the other losses occurring in the system. Solar Field Soler Superheater Steam Turbine Hot Salt Tank Generaton Boler (optional) Condenser Ol-to-Sat Heat Exchanger Deaerator Steam Generator Fuel Feedwater Heaters Solar Preheater Solar Reheater Cold Salt Tank Expansion Vessel

Answer 1

Peart Ca) Total Etlicieng etliciency sola thoosh XEPficiency sleean forine X EfPrciency Electric Generatoi Efficiency Uncounted 20/100 60/100 X 50/100 X8100x Efficiency Unaccounted EPiciency Unccoonted EO 6802 EPficiency uncoounted 68.021 31.917 Loss uncount ed -- Part (b)- ccounted losses which Cne heat exchange eY locses Oil to Salt Sopply losses Soperheatev Stream Generator, ctveam tyansfer losses at Preheater