c) Calculate the 1st law efficiency of the generator that uses the Brayton cycle. In one...

Transcribed Image Text:

c) Calculate the 1st law efficiency of the generator that uses the Brayton cycle. In one sentence, explain what first law efficiency represents. [2 points] From the prompt: W Calculate Qin: net = 500 MW Qi? = 2 ????i??? 2,500 10 6 ??? h? - ????i?? Calculate First Law Efficiency: W ?et Qi? = X 1 ?Wh 3,414 ??? 500 MW 1,464.56 MW X 1 MW 1,000 ?W = 0.34 30% = 1,464.56 MW The first law efficiency represents how well an engine converts energy into useful work (in this case, thermal energy to electrical energy) c) Calculate the 1st law efficiency of the generator that uses the Brayton cycle. In one sentence, explain what first law efficiency represents. [2 points] From the prompt: W Calculate Qin: net = 500 MW Qi? = 2 ????i??? 2,500 10 6 ??? h? - ????i?? Calculate First Law Efficiency: W ?et Qi? = X 1 ?Wh 3,414 ??? 500 MW 1,464.56 MW X 1 MW 1,000 ?W = 0.34 30% = 1,464.56 MW The first law efficiency represents how well an engine converts energy into useful work (in this case, thermal energy to electrical energy)