How do you determine the temperature of a steam turbine outlet?
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How do you determine the temperature of a steam turbine outlet?
The unit work equation is: wt = (inlet steam enthalpy – cold reheat enthalpy) + (hot reheat enthalpy – turbine exhaust enthalpy). In this case, wt = (1,474.1 – 1,248.1) + (1,526.5 – 1,003.9) = 748.6 Btu/lbm.
What is the temperature of steam turbine?
A steam turbine consists of stationary and rotating blades on an axle. High pressure steam enters the turbine. The steam can be anywhere from 200 °C to 400 °C. The stationary blades direct streams of high pressure steam onto the rotating blades, which turns the axle.
How do you calculate turbine inlet temperature?
Turbine inlet temperature of a gas turbine engine is calculated from compressor discharge temperature, total and static pressures and total fuel metered to the engine by combining a sensed engine temperature with a derived fuel/air ratio and from the empirical burner can temperature rise equation solving for the …
How is steam calculated?
Step 2: Determine Feedwater Properties and Mass Flow
- Blowdown Mass Flow = Feedwater Mass Flow * Blowdown Rate.
- Steam Mass Flow = Feedwater Mass Flow – Blowdown Mass Flow.
- Steam Mass Flow = Feedwater Mass Flow – Feedwater Mass Flow * Blowdown Rate.
- Feedwater Mass Flow = Steam Mass Flow / [ 1 – Blowdown Rate ]
How do you calculate steam turbine efficiency?
Using the outlet specific enthalpy, calculate the isentropic efficiency: Isentropic Efficiency = ( Inlet Specific Enthalpy – Outlet Specific Enthalpy ) / ( Inlet Specific Enthalpy – IDEAL Outlet Specific Enthalpy )
What is bleeding of steam turbine?
The terminology bleeding in a turbine is basically for the steam turbines, where the hot steam bleeds out from the turbine due to unsteady pressure conditions. The bled steam is further used in regenerative heating. The bleeding of steam is from the intermediate stages of the turbine.
What is the maximum possible tit turbine inlet temperature?
The efficiency of the cycle is maximum when turbine inlet temperature is maximum. Maximum temperature can occur when fuel- air mixture is burned under stoichiometric conditions. The turbine inlet temperature (TIT) has increased from 700 °C in 1950 to about 1700 °C.
What is the actual turbine inlet temperature in Rankine cycle for turbine?
What is the actual turbine inlet temperature in Rankine cycle? Explanation: The TIT(Turbine Inlet Temperature) is of the range 500-570C.
Where is turbine inlet temperature monitored?
In certain turbine engines, the temperature of the exhaust gases is measured at the entrance to the turbine unit. This is referred to as a turbine inlet temperature (TIT) indicating system. Several thermocouples are used to measure EGT or TIT.
What is a boiler inlet temperature?
The inlet temperature of the turbine (or the outlet temperature of the boiler) is varied between 500°C and 700°C in steps of 20°C. Also, the inlet pressure of the turbine (or the outlet temperature of the boiler) is varied between 8 MPa and 10 MPa in steps of 200 kPa.