# GATE ME 2013 | Question: 28

Specific enthalpy and velocity of steam at inlet and exit of a steam turbine, running under steady state, are as given below:

$\begin{array}{ccc} & \underline{Specific \: enthalpy (kJ/kg)} & \underline{Velocity \: m/s} \\ \text{Inlet steam condition} & 3250 & 180 \\ \text{Exit steam condition} & 2360 & 5 \end{array}$

The rate of heat loss from the turbine per $kg$ of steam flow rate is $5$ $kW$. Neglecting changes in potential energy of steam, the power developed in $kW$ by the steam turbine per $kg$ of steam flow rate, is

1. $901.2$
2. $911.2$
3. $17072.5$
4. $17082.5$

recategorized

## Related questions

In a simple Brayton cycle, the pressure ratio is $8$ and temperatures at the entrance of compressor and turbine are $300$ $K$ and $1400$ $K$, respectively. Both compressor and gas turbine have isentropic efficiencies equal to $0.8$ ... kinetic and potential energies. The thermal efficiency of the cycle in percentage (%) is $24.8$ $38.6$ $44.8$ $53.1$
The pressure ratio across a gas turbine (for air, specific heat at constant pressure, $c_{p}=1040 J/kg.K$ and ratio of specific heats, $\gamma=1.4$) is $10$. If the inlet temperature to the turbine is $1200$ K and the isentropic efficiency is $0.9$, the gas temperature at turbine exit is ________ $K$
Consider a simple gas turbine (Brayton) cycle and a gas turbine cycle with perfect regeneration. In both the cycles, the pressure ratio is $6$ and the ratio of the specific heats of the working medium is $1.4$. The ratio of minimum to maximum temperatures is ... $K$) in the regenerative cycle. The ratio of the thermal efficiency of the simple cycle to that of the regenerative cycle is _________
Consider two hydraulic turbines having identical specific speed and effective head at the inlet. If the speed ratio $\displaystyle{\left(\frac{N_1}{N_2}\right)}$ of the two turbines is $2$, then the respective power ratio $\displaystyle{\left(\frac{P_1}{P_2}\right)}$ is _____________