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What is the range of Thermal efficiency in Brayton cycle?
If helium is used instead of air the efficiency of brayton cycle.
The relationship between work ratio and back work ratio (BWR) is
isoentropic efficiency in a turbine is considered to account for
In Rankine cycle which of the following is neglisible compared to others.
The formula for specific fuel consumbtion in kg/ kw hr is
Due to superheating dryness fraction in Rankine cycle.
In a Rankine cycle if boiler pressure is increased the efficiency of the cycle
Which of the following increases cycle efficiency
Reciprocating compressor is used for.
i. High pressure ratio
ii. High Discharge
iii. Small Pressure ratio
iv. small discharge
If clearance volume decreases The volumetric efficiency of a reciprocating compressor
The net work output is minimum during compression for
For a 3 stage compression from 1 bar to 27 bar the intermediate pressure at last stage for perfect intercooling is
Which of the following blades gives maximum pressure ratio
Forward-curved blades produce higher pressure ratio.
In which of the following compressors air flows radially.
If drop in enthalpy in moving blades is 150 kJ and in fixed blades in 300 kJ. The degree of reaction is
For supersonic flow a diverzing passage behaves as.
In a converzing diverzing nozzle at chocked condition the relation between throat temperature (T2) and Inlet temperature (T1) is
The size of which of the following turbine is largest.
The cross section between blade passage in a simple impulse turbine is