Dryness fraction of steam is defined as

Related MCQs

• Consider the following statements regarding superheating in Rankine Cycles 1. It reduces the specific steam consumption 2. It increases the dryness fraction of steam at the exhaust for the same value of condenser pressure 3. It reduces the cycle efficiency Of the these statements
• Higher dryness fraction of steam at turbine exit in a Rankine cycle
• Steam enters the turbine at 5.44 bar with dryness fraction of 0.9 & is expanded adiabatically to a pressure of 0.68 bar. It will enter the condenser with a quality very close to
• What is the most preferable dryness fraction of the exhaust steam?
• In an constant pressure heating certain fraction of heat supplied is converted into work. If ?=1.4 this fraction is
• What is the most preferable dryness
• Correlate the following statements i) the volume of water into which steam is condensed in condenser is very much smaller than the volume of steam before condensation ii) the net work of a Rankine cycle is heat supplied in boiler - heat rejected to condenser - pump work
• 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
• 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
• In a reheat Rankine cycle steam with enthalpy of 3300 kJ/kg is expanded in h.p turbine to a state where enthalpy is 2650 kJ/kg. The steam is further expnaded from a state where enthalpy is 2950 kJ/kg to enthalpy of 2525 kJ/kg & latent heat of 2201 kJ.kg. The work of the cycle & amount of reheat respectively are