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GATE 2022 ME: RAC, PPE & IC Engines Quiz - 6
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Question 1
A calorically perfect gas (specific heat at constant pressure 1000 J/kg.K) enters and leaves a gas turbine with the same velocity. The temperatures of the gas at turbine entry and exit are 1100 K and 400 K, respectively. The power produced is 4.6 MW and heat escapes at the rate of 300 kJ/s through the turbine casing. The mass flow rate of the gas (in kg/s) through the turbine is
Question 2
A gas turbine working on Brayton cycle has a back work ratio of 0.35 and net output is 250 kJ. If compressor efficiency of 90%, then find the work output by the turbine ____________?
Question 3
The cycle generally used for gas turbines is:
Question 4
Find the maximum work obtainable per kg of air in ideal brayton cycle working between temperature limits of 127oC and 1327oC. (Take Cp = 1 kJ/kg/K)
Question 5
If m is the ratio of maximum and minimum temperature of Brayton cycle, then the efficiency corresponding to the maximum work done is given by the relation _________.
Question 6
In Brayton Cycle, the work ratio is 0.65. What is the back work ratio of this Brayton Cycle?
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Sep 6ESE & GATE ME
