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Schematic operation of a steam turbine generator system
Steam turbines are made in a variety of sizes ranging from small <0.75 kW (1< hp) units (rare) used as mechanical drives for pumps, compressors and other shaft driven equipment, to 1,500,000 kW (2,000,000 hp) turbines used to generate electricity. There are several classifications for modern steam turbines.
Steam supply and exhaust conditions
These types include condensing, non-condensing, reheat, extraction and induction.
Condensing turbines are most commonly found in electrical power plants. These turbines exhaust steam in a partially condensed state, typically of a near 90%, at a pressure well below atmospheric to a condenser.
Non-condensing or back pressure turbines are most widely used for process steam applications. The exhaust pressure is controlled by a regulating valve to suit the needs of the process steam pressure. These are commonly found at refineries, district heating units, pulp and paper plants, and facilities where large amounts of low pressure process steam are available.
Reheat turbines are also used almost exclusively in electrical power plants. In a reheat turbine, steam flow exits from a high pressure section of the turbine and is returned to the boiler where additional superheat is added. The steam then goes back into an intermediate pressure section of the turbine and continues its expansion.
Extracting type turbines are common in all applications. In an extracting type turbine, steam is released from various stages of the turbine, and used for industrial process needs or sent to boiler to improve overall cycle efficiency. Extraction flows may be controlled with a valve, or left uncontrolled.
Induction turbines introduce low pressure steam at an intermediate stage to produce additional power.
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How to calculate the ratio of the inlet-to-exit area of the nozzle
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My baby brothers baby bottle has a nozzle the size of an elephant!
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0.42
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You get the rocket nozzle after you open the rocket nozzle box in the level with the blooper boss.
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To clean the nozzle and tube after using expanding foam filler, you can wipe off excess foam with a cloth while it's still wet. Then, use a foam cleaner designed for this purpose to remove any dried residue. Make sure to follow the manufacturer's instructions for proper disposal of the used nozzle and tube.
