Heat Engine problem 2

1. Jan 29, 2012

ChunkymonkeyI

1. The problem statement, all variables and given/known data
Modern nuclear power plants have an overall efficiency of about 30%. Fossil fuel plants achieve overall efficiencies of 40%. Compare the rate of heat emission from a nuclear plant with that from a fossil fuel plant each of which produces an output power of 1000 MW

2. Relevant equations

e=W/Qh

3. The attempt at a solution
I don't know where to start because we're only given the efficency and the power but that's not enough information i think
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Jan 29, 2012

Delphi51

I don't think your formula is useful in this case. It is a more basic efficiency question.

It's kind of like this. Say you are picking berries and you eat 70% of what you pick. After a long hot day, you have 5 pounds of berries in your pail. Can you figure out what you picked and what you ate? If you have trouble with that, try a 50% eating rate first.