1. The problem statement, all variables and given/known data A borehole produces 120kg/s of high pressure water at 165°C. A powerplant is to be designed to extract heat from the water, reducing the temp to 147°C. The plant which will initially be assumed to be reversible, will reject heat at 17°C to a river. Take 147°C as the highest temp available and assume the river is so large that there is negligible change in temp. Specific Heat Capacity of high pressure water is 4.2kj/kgK. Work out: a) Rate of heat input available to the plant. b) Rate at which heat is rejected c) Maximum power out from the plant and its efficiency. 2. Relevant equations QL/QH = TL/TH 3. The attempt at a solution I am not sure where or how to begin. Any help pointing me in the right direction for each question would be much appreciated.