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You compare the btu input with the btu output. Divide the input into the output and that will give you the efficiency. With multiple extraction you will have to add all the uses.
For example 100 million btuh input, with all sources of output having 82 million btuh-
divide 100 into 82, for .82, or 82% efficiency.
What else can I help you with?
How does an extraction turbine work?
An extraction turbine is a type of steam turbine that operates by extracting a portion of the steam at intermediate pressure from the turbine for use in heating or other processes. As steam enters the turbine, it passes through various stages, converting thermal energy into mechanical energy to drive the turbine blades. The extracted steam is typically at a lower pressure and temperature, which makes it suitable for applications like district heating or process heating in industrial settings. The remaining steam continues through the turbine to generate additional power before being condensed and returned to the boiler system.
What is relative velocity of turbine blade?
The relative velocity of a turbine blade refers to the velocity of the fluid (such as air or water) relative to the blade itself. It is calculated by subtracting the velocity of the blade from the velocity of the fluid. This concept is crucial in turbine design and operation, as it affects the lift and drag forces acting on the blade, ultimately influencing the turbine's efficiency and performance. Understanding relative velocity helps engineers optimize blade shapes and angles for maximum energy extraction.
What is a droop in steam turbine?
A droop in a steam turbine refers to a decrease in the output frequency of the turbine generator system as the load increases. This phenomenon occurs due to the inherent characteristics of the steam turbine's governor control system, which allows for a slight reduction in speed to maintain stability and respond to changes in demand. The droop setting is crucial for ensuring proper load sharing among multiple generators in a grid. It helps prevent overloading and potential damage to the turbine while maintaining overall system reliability.
Explain the working of a 2 stage velocity compounding impulse turbine curtis?
A 2-stage velocity compounding impulse turbine, like the Curtis turbine, operates by using two sets of nozzle blades and two sets of moving blades. In the first stage, steam is directed through nozzles that expand it, converting pressure energy into kinetic energy, which then strikes the first set of moving blades. The steam exits the first stage at a lower velocity and enters the second stage, where it passes through additional nozzles before impacting the second set of moving blades, further extracting energy. This compounding process enhances efficiency by maximizing energy extraction from the steam at multiple stages.
What is difference between radial flow turbine and axial flow turbine?
in a radial flow turbine the steam enters the turbine in the direction of its radius and leaves it in the direction of the axis of the shaft. in a axial flow turbine the steam enters the turbine in the direction of the axis of the shaft and leaves the turbine in the same direction.
Why extraction taken from steam turbine?
Why extractions are taken out from steam turbine.
What is controlled and uncontrolled extraction in double extraction steam turbine?
The extraction of steam can either be controlled or uncontrolled. In an uncontrolled extraction the pressure of the extracted steam will decrease with an increase in extraction flow from the turbine. In a controlled extraction the extraction pressure is kept constant as extraction flow is increased or decreased.
How does an extraction turbine work?
An extraction turbine is a type of steam turbine that operates by extracting a portion of the steam at intermediate pressure from the turbine for use in heating or other processes. As steam enters the turbine, it passes through various stages, converting thermal energy into mechanical energy to drive the turbine blades. The extracted steam is typically at a lower pressure and temperature, which makes it suitable for applications like district heating or process heating in industrial settings. The remaining steam continues through the turbine to generate additional power before being condensed and returned to the boiler system.
What the difference between extraction and bleeding in steam turbine?
bleed is amount of steam output from turbine through pipe and exit from final stage of turbine . this bleed enter to feed water heater (low and high) and deaereator to increase unit efficiency or rather bleed is the amount of steam drained out of the steam turbine during the expansion of steam and this rejected heat energy is used to heat the feed water supplied to the boiler...........
Why the gas turbine needs 3 bucket stages only in 110MW TURBINE?
The 3 bucket stages in a 110MW gas turbine are designed to efficiently extract energy from the high-pressure hot gas produced by combustion. By using 3 stages, the turbine can effectively expand the gas across multiple stages, thereby maximizing energy extraction and overall efficiency within the power plant. Additionally, the design may also optimize the velocity and pressure of the gas flow to ensure proper turbine performance at the specified power output level.
Why lp heater have no qcnrv?
non-return valves of swing check type provided with a forced closing mechanism. They are installed in turbine extraction lines. The purpose of these valves is to prevent the back flow of heavy specific weight and low temperature steam to turbine during a turbine trip
What will be the effect to the thermal efficiency to a simple Rankine cycle when the turbine work output decrease?
The efficiency will decrease.Remeber the formula for effiency for a cycle:What we want over what we pay for. So,ηT=WT/QAWhereWT = Work done by the turbineQA = Heat taken from the hot reservoir
What is alignment of rotor shaft in steam turbine?
steam turbine is multiple shaft euipment, to avoid the viberation of the shaft train runing, the multiple shaft need to be aligned within tolorance. usually, the rim and face run out checked is request.
Does a wind turbine generate more energy than it takes to produce the turbine?
It depends on time and location. If you place your windmill on top of a hill, it will be the most efficient. But as for your question, its down to the matter of time. How long is the windmill going to be running for? If 2000Kw where used to produce a windmill.. and the windmill produced 1000Kw a year, it would make its effiency in 2 years. This is called pay back time! Hope this helps!!
What is relative velocity of turbine blade?
The relative velocity of a turbine blade refers to the velocity of the fluid (such as air or water) relative to the blade itself. It is calculated by subtracting the velocity of the blade from the velocity of the fluid. This concept is crucial in turbine design and operation, as it affects the lift and drag forces acting on the blade, ultimately influencing the turbine's efficiency and performance. Understanding relative velocity helps engineers optimize blade shapes and angles for maximum energy extraction.
What is HP and LP turbine expansion?
HP Turbine is High Performance Turbine LP Turbine is Low Performance Turbine
What is a droop in steam turbine?
A droop in a steam turbine refers to a decrease in the output frequency of the turbine generator system as the load increases. This phenomenon occurs due to the inherent characteristics of the steam turbine's governor control system, which allows for a slight reduction in speed to maintain stability and respond to changes in demand. The droop setting is crucial for ensuring proper load sharing among multiple generators in a grid. It helps prevent overloading and potential damage to the turbine while maintaining overall system reliability.
