Power cycle efficiency problem

by brvfan20
Tags: electricity, power cycle, thermal efficiency, thermodynamics
brvfan20 is offline
Sep7-09, 01:08 PM
P: 7
1. The problem statement, all variables and given/known data
A power cycle has a thermal efficiency of 40% and generates electricity at a rate of 100 MW. The electricity is valued at $0.08 per kW * h. Based on the cost of fuel, the cost to supply Qin is $4.50 per GJ. For 8000 hours of operation annually, determine, in $.
a. The value of electricity generated per year.
b. The annual fuel cost.
c. Does the difference between the results of parts (a) and (b) represent profit? Discuss.

2. Relevant equations
Thermal Efficiency = W cycle/ Q in

3. The attempt at a solution
I don't even know where to begin.
Can someone please get me on the right track.
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CFDFEAGURU is offline
Sep7-09, 01:43 PM
P: 723
First convert GJ to KW.
mangeshpjoshi is offline
Oct16-09, 09:28 AM
P: 2
i would solve today night ,youwould have answer tomorrow ..
mangesh joshi

brvfan20 is offline
Oct16-09, 07:13 PM
P: 7

Power cycle efficiency problem

Quote Quote by mangeshpjoshi View Post
i would solve today night ,youwould have answer tomorrow ..
mangesh joshi
I figured it out...thanks though!

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