In a regenerative Brayton cycle the maximum heat input that can be saved corresponds to the difference in enthalpy between the exhaust of the turbine and the inlet of the compressorQuestion 6Select one:a.TRUEb.FALSE

In an ideal Brayton cycle with regeneration, air is compressed from 80 kPa and 10C to 400 kPa and 180C, is heated to 450C in the regenerator, and then further heated to 1200C before entering the turbine. Under cold air standard conditions, the effectiveness of the regenerator isQuestion 1Select one:a.26%b.42%c.65%d.57%e.94%

Regeneration can only increase the efficiency of a Brayton cycle when working fluid leaving the turbine is hotter than the working fluid leaving the compressorQuestion 5Select one:a.TRUEb.FALSE

Consider a gas turbine that has a pressure ratio of 8 and operates on the Brayton cycle with regeneration between the temperature limits of 20 deg C and 900 deg C. If the specific heat ratio of the working fluid is 1.33, the highest thermal efficiency this gas turbine can have isQuestion 4Select one:a.42%b.49%c.58%d.63%e.69%

In an ideal Brayton cycle, air is compressed from 84 kPa and 25C to 840 kPa. Under cold air standard conditions, the thermal efficiency of this cycle isQuestion 3Select one:a.48%b.52%c.10%d.60%e.74%

A Brayton Gas turbine cycle produces 14 MW with an inlet state of the compressor is T10C, P1 kPa, and a compression ratio of rP. The heat added in the combustion is 960 kJ/kg. Determine the specific compressor work.Where,T1=190CP1= 118 kParP=14:1Specific heat at a constant pressure of air, CP= 1.004 kJ/kg kPolytropic Index, n for compressor, turbine and combustion chamber=1.4