Chapter 8, Problem 8.53P

1. Steam at 10 MPa, 500°C has an ideal engine turbine that has one stage of reheat, K] exhaust is at 0.005 MPa and 85% quality. The work produced by the engine is 800 kg. Determine the thermal efficiency of the turbine.

A condenser (heat exchanger) brings 1 kg/s water flow at 10 kPa quality 95% to saturated liquid at 10 kPa. The cooling is done by lake water at 20 degree Celsius that returns to the lake at 30 degree Celsius. For an insulated condenser, find the flow rate of cooling water.

A cycle heat engine does 60KJ of work per cycle. If th efficiency of the heat engine is 60%. The heat rejected per cycle is?

I need the answer as soon as possible

Problem 4.01. A carnot refrigerator (carnot cycle heat pump in reverse) operating between Th and Te is used to cool and freeze a bottle of water, volume V, at a temperature To < Th to freezing temperature T (known density Pw, heat capacity cw). (a) Find the work required to cool and freeze the water. (b) Find the change in entropy in the heat baths, and use it to place a limit on the change in entropy of the water (without calculating the entropy change in the water). The C.O.P. of a carnot refrigerator: KR= Qc = W Te Th-Te

In an engine, the air in a piston-cylinder arrangement has a compression ratio of 0.1. It starts from 100kPa and 20degC. Find the temperature at state 2. You can assume an adiabatic process and the ideal gas law applies.

find the specific enthalphy at each point of the cycle, the amount of heat added, heat rejected, turbine work, pump work, net work and thermal efficiency in a carnot cycle between pressure limits of 3MPa and 10KPa

Please be very detailed

A gas turbine plant operates on the Brayton cycle between T 27°C and T 800 °C  Find the maximum work done per kg of air, and max the corresponding cycle efficiency. How does this efficiency compare with the Carnot cycle efficiency operating between the same two temperatures?