Thermodynamics and heat

1. Oct 17, 2011

Grigoris_Da

If heat source and heat sink temperature of a power plant is 900C and 25C respectively, then
i) Calculate the maximum efficiency of the power cycle
ii) Calculate the power input if the output is 210MW
iii) Calculate energy loss from cycle
iv) Draw the energy flow diagram (sankey diagram) of the plant
v) Calculate the fuel consumption flow rate if the plant operates on natural gas with Gross calorific value of 39MJ/m3
vi) If the actual efficiency of the power plant is 35%, then explain where the energy is lost.

2. Oct 17, 2011

LawrenceC

Hint: What is the most thermally efficient cycle?