1
GATE ME 2014 Set 3
Numerical
+2
-0
At the inlet of an axial impulse turbine rotor, the blade linear speed is 25 m/s, the magnitude of absolute velocity is 100 m/s and the angle between them is 25°. The relative velocity and the axial component of velocity remain the same between the inlet and outlet of the blades. The blade inlet and outlet velocity triangles are shown in the figure. Assuming no losses, the specific work (in J/kg) is ____________.
![GATE ME 2014 Set 3 Thermodynamics - Rankine Cycle Question 19 English](https://gateclass.static.cdn.examgoal.net/ydROsOX38MfwizKlN/WVOHuWFqQ69eNn5OXWMD10GTQHUWZ/AzblPsXx75xEqN4DWGCXVW/uploadfile.jpg)
Your input ____
2
GATE ME 2014 Set 1
Numerical
+2
-0
An ideal reheat Rankine cycle operates between the pressure limits of $$10$$ $$kPa$$ and $$8$$ $$MPa,$$ with reheat being done at $$4$$ $$MPa.$$ The temperature of steam at the inlets of both turbines is $${500^ \circ }C$$ and the enthalpy of steam is $$3185$$ $$kJ/kg$$ at the exit of the high pressure turbine and $$2247$$ $$kJ/kg$$ at the exit of low pressure turbine. The enthalpy of water at the exit from the pump is $$191$$ $$kJ/kg$$. Use the following table for relevant data.
![GATE ME 2014 Set 1 Thermodynamics - Rankine Cycle Question 21 English](https://gateclass.static.cdn.examgoal.net/JxR9k9d9QpFjRlGTD/1czRg2M8vgTHMBTEBqUyjMppB7dES/t0djvRn4AtvWeTgdGY2uSa/uploadfile.jpg)
Disregarding the pump work, the cycle efficiency (in percentage ) is ________________
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3
GATE ME 2011
MCQ (Single Correct Answer)
+2
-0.6
The values of enthalpy of steam at the inlet and outlet of a steam turbine in a Rankine cycle are $$2800$$ $$kJ/kg$$ and $$1800$$ $$kJ/kg$$ respectively. Neglecting pump work, the specific steam consumption in $$kg/kW$$-hour is
4
GATE ME 2010
MCQ (Single Correct Answer)
+2
-0.6
In a steam power plant operating on the Rankine cycle, steam enters the turbine at $$4$$ $$MPa,$$ $${350^ \circ }C$$ and exits at a pressure of $$15$$ $$kPa.$$ Then it enters the condenser and exits as saturated water. Next, a pump feeds back the water to the boiler. The adiabatic efficiency of the turbine is $$90\% $$. The thermodynamic states of water and steam are given in the table.
![GATE ME 2010 Thermodynamics - Rankine Cycle Question 24 English](https://gateclass.static.cdn.examgoal.net/BTBnaH9I24dMrTCrL/dESsJ1bvm37Tj4AHlw9WBTFkEGN8g/xRxzELso5z0J73XNz0RaRz/uploadfile.jpg)
$$h$$ is specific enthalpy, $$s$$ is specific entropy and $$v$$ the specific volume; subscripts $$f$$ and $$g$$ denote saturated liquid state and saturated vapour state.
The net work output $$(kJ/kg)$$ of the cycle is
Questions Asked from Rankine Cycle (Marks 2)
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Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude