How is steam turbine design?
How is steam turbine design?
Two basic types of steam turbine designs are available. One is an impulse design in which the rotor turns as a result of the force of steam on the blades. The other is a reaction design, and it operates on the principle that the rotor derives its rotational force from the steam as it leaves the blades.
How do you size a steam turbine?
Calculation Details
- Step 1: Determine Inlet Properties.
- Step 2: Calculate Ideal Outlet Properties (Inlet Entropy equals Outlet Entropy)
- Step 3: If solve for ‘Isentropic Efficiency’, Determine Outlet Properties.
- Step 3: If solve for ‘Outlet Properties’, Determine Outlet Specific Enthalpy.
How do you increase steam turbine efficiency?
At present, the most popular approaches to improve the total efficiency of a steam turbine include increasing the initial steam parameters, decreasing final steam parameters, installing a feed-water heater, and applying combined-cycle technology.
What are the five types of steam turbine?
While based on the flow of steam they can be classified as a single flow, double flow and reverse flow turbines. Similarly, based on exhaust conditions, there are five main types of steam turbines; condensing, non-condensing, automatic extraction, mixed pressure, and regenerative extraction.
Why vacuum is required in steam turbine?
Vacuum applies to steam turbines because the pressure of saturated vapour above available cooling water is well below 1 bar (typically 17 mbar at 15°C ambient).
How can I reduce steam consumption?
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- Recover and use heat from industrial furnaces:
- Use heat cascading:
- Use proper heating methods:
- Use proper furnace insulation and maintenance techniques:
- Reduce flue gas oxygen content:
- Reduce steam demand:
- Use alternate fuel:
- Improve boiler efficiency:
