A regenerative Rankine cycle may approach efficiency of a Carnot cycle between same temperature by

Related MCQs

• In a regenerative Rankine cycle as compared to simple Rankine cycle
• A Carnot engine receiving heat at 400K has an efficiency of 25%. The C.O.P. of a Carnot refrigerator working between the same temperature limits is
• The temperature of feed water can be increased in following two ways in a regenerative Rankine cycle i) by passing feed water around turbine casing in direction opposite to flow of steam ii) by bleeding certain portion of steam at the end of h.p expansion & mixing with condensate to make feed water at the temperature of boiler
• Considerfollowing options for a simple Rankine cycle i) increasing pressure at exist of turbine ii) increasing average temperature of heat addition iii) decreasing pressure at exit of turbine iv) superheating of steam v) decreasing pressure during superheating. Which combination of above will increase Rankine efficiency?
• A steam power plant working on Rankine cycle produces steam in the boiler at a rate of 100 kg/s with enthalpy of 3280 kJ/kg from water whose total heat content is 420 kJ/kg. The plant has Rankine efficiency of 24.65 while pump requires 5 kJ/kg of work. The turbine generates power of
• 2 STATEMENTS OF SECOND LAW AND ITS COROLLARIES. CARNOT CYCLE REVERSED CARNOT CYCLE, PERFORMANCE. CLAUSIUS INEQUALITY.
• Examine follwing two statements & choosethe correct relationship i) for a steam power plant Rankine cycle is preferred over Carnot cycle ii) a pump which will handle the mixture of vapour & liquid is difficult to construct
• A Rankine cycle is less efficient than Carnot cycle because
• A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350°C and the Condenser at 50 kPa. Assuming ideal operation and processes, what is the thermal efficiency of this cycle?
• The efficiency of the Carnot cycle may be increased by