How to Calculate Annual Value and Cost for a Power Cycle with 40% Efficiency?

AI Thread Summary
To calculate the annual value and cost for a power cycle with 40% efficiency generating 100 MW, first determine the annual electricity value by multiplying the output (8000 hours at 100 MW) by the electricity rate of $0.08 per kWh. The annual fuel cost can be calculated by converting the energy input required (based on thermal efficiency) into GJ and multiplying by the fuel cost of $4.50 per GJ. The difference between the electricity value and fuel cost indicates potential profit, which should be analyzed further. The discussion highlights the importance of understanding thermal efficiency and conversion factors in energy calculations.
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Homework Statement


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.


Homework Equations


Thermal Efficiency = W cycle/ Q in


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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First convert GJ to KW.
 
i would solve today night ,youwould have answer tomorrow ..
faithfully
mangesh joshi
 
mangeshpjoshi said:
i would solve today night ,youwould have answer tomorrow ..
faithfully
mangesh joshi

I figured it out...thanks though!
 
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