The efficiency gain follows the law of diminishing return with the increase in the number of heaters.

Related MCQs

• Both first law efficiency and second law efficiency indicate how effectively the input has been converted into the product.
• How many types of feedwater heaters are present?
• 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
• ……… is the ratio of actual cycle efficiency to that of the ideal cycle efficiency
• 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?
• Second law efficiency can also be given as
• Second law efficiency is defined as
• For a power plant, second law efficiency can be given by desired output(W) / available energy(Wmax).
• In case of a heat pump, second law efficiency is given as
• The first law efficiency is defined as the ratio of the output energy to the input energy.