For proper utilization of exergy, it is desirable to make first law efficiency           and the source and use temperatures should

Related MCQs

• Both first law efficiency and second law efficiency indicate how effectively the input has been converted into the product.
• Exergy is lost due to
• With the concept of exergy available, which of the following is possible?
• A Carnot cycle operates between source & sink temperatures of 250°C & - 15°C. If the system receives 90kJ from the source then the net work transfer equals
• Consider the following statements: The definition of 1. temperature is due to zeroth law of thermodynamics 2. entropy is due to first law of thermodynamics 3. internal energy is due to second law of thermodynamics 4. reversibility is due to Kelvin-Planck's ststement of these statements
• The first law efficiency is defined as the ratio of the output energy to the input energy.
• A simple Rankine cycle produces 40 MW of power, 50 MW of process heat and rejects 60 MW of heat to the surroundings. What is the utilization factor of this co generation cycle neglecting the pump work?
• ……… is the ratio of actual cycle efficiency to that of the ideal cycle efficiency
• The final temperatures of two bodies, initially at T1 and T2 can range from
• The final temperatures of two bodies, initially at T1 and T2 can range from