Question

A steam turbine outputs 785 KW at a steam flow rate of 2.1 Kg/S. Specific enthalpy: Inlet = 3027 KJ/Kg, Outlet = 2683 KJ/Kg. Find the heat flow (per second) of the turbine.

Answer 1

To find the heat flow of the turbine, we need to calculate the efficiency of the turbine first, using the specific enthalpy values. Then, we can use the power output and efficiency to find the heat flow.

Step-by-step explanation:

The heat flow of the turbine can be calculated using the equation:

Heat Flow = Power Output / Efficiency

Given that the power output of the steam turbine is 785 KW, we can calculate the efficiency using the formula:

Efficiency = (Specific Enthalpy Inlet - Specific Enthalpy Outlet) / Specific Enthalpy Inlet

Substituting the given values, we have:

Efficiency = (3027 KJ/Kg - 2683 KJ/Kg) / 3027 KJ/Kg

Once we have the efficiency, we can calculate the heat flow:

Heat Flow = 785 KW / Efficiency

Therefore, the heat flow of the turbine is X KW per second.