Final control questions on the subject “heat engineering” The purpose and function of the subject. Working parameter. Status parameters. Base words and phrases

 
Base words and phrases: Steam, states, Color, Cycle, scheme, diagram 
Steam turbine units are used to generate electricity from steam by turning a turbine. Here are some 
base words and phrases related to steam turbine units: 
- Steam: The steam used in a steam turbine unit is typically generated by heating water in a boiler 
using various fuels such as coal, natural gas, or nuclear energy. The steam is directed onto the 
blades of a turbine to generate rotation. 
- States: The steam undergoes changes in state as it flows through the turbine unit. It starts as a 
high-pressure and high-temperature gas that enters the turbine. As it flows through the turbine, 
the pressure and temperature decrease, and the steam turns into a lower-pressure gas. 

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- Color: The color of the steam in a steam turbine unit can indicate its temperature and pressure. 
White steam is usually hot, high-pressure steam, while gray or black steam can indicate lower 
temperature or pressure. 
- Cycle: The steam turbine unit operates on a thermodynamic cycle that involves the 
transformation of energy between heat and work. The cycle has four main stages: heating of 
water to form high-pressure steam, expansion of the steam in the turbine to generate work, 
cooling of the steam to form low-pressure condensate, and pumping the condensate back to 
the boiler to restart the cycle. 
- Scheme/diagram: Steam turbine units are often represented by schematics and diagrams that 
depict the different components of the unit. The diagram typically includes the boiler, turbine, 
condenser, and pump. 
In summary, a steam turbine unit uses steam generated by heating water to turn a turbine and 
generate electricity. The steam undergoes changes in state as it flows through the turbine unit, with 
the pressure and temperature decreasing over time. The steam operates on a thermodynamic cycle 
with four main stages, and the color of the steam can indicate its temperature and pressure. Finally, 
steam turbine units are often represented using diagrams that show the different components of the 
unit. 
19. Wet air.