Applications Questions Set 5:
What is the expression for water power in a Pelton wheel?
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What is the most effective inhibitor of pre-ignition in internal combustion engines?
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What happens to the drag coefficient of the impeller when there is an increase in cavitation?
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What defines the critical size of a nuclear reactor?
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Which of the following refrigeration processes corresponds to the refrigerating effect?
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Find the value of the Coefficient of Performance (COP) if the reversed Carnot cycle is operating as a heat pump between temperature limits of 369 K and 290 K.
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If the work input is 50 kJ/kg and the refrigeration effect produced is 110 kJ/kg of refrigerant flowing, then calculate the relative coefficient of performance (COP) of the system.
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Consider the following statements about the sensible heating process:
- Wet-bulb temperature increases
- Relative humidity decreases
- Vapor pressure remains constant
Which of the above statements are correct?
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A steam turbine receives steam steadily at 10 bar with an enthalpy of 3000 kJ/kg and discharges at 1 bar with an enthalpy of 2700 kJ/kg. The work output is 250 kJ/kg. The changes in kinetic and potential energies are negligible. The heat transfer from the turbine casing to the surroundings is:
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Where does the inlet valve open in a 4-stroke diesel engine?
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