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Turbine diffusers are configured to improve pressure recovery within the turbo machinery. The diffuser both converts the non-uniform flow off the impeller into a uniform velocity profile and converts the dynamic energy of the flow into pressure with minimal losses. With an effective diffuser, the rotor exit static pressure will be less than the discharge value which increases the total/static pressure ratio of the turbine. With this increase in total/static pressure ratio, the total to total pressure ratio is reduced, but the overall turbine efficiency is improved..
Turbine diffusers are configured to improve pressure recovery within the turbo machinery. The diffuser both converts the non-uniform flow off the impeller into a uniform velocity profile and converts the dynamic energy of the flow into pressure with minimal losses. With an effective diffuser, the rotor exit static pressure will be less than the discharge value which increases the total/static pressure ratio of the turbine. With this increase in total/static pressure ratio, the total to total pressure ratio is reduced, but the overall turbine efficiency is improved..
For more information Read the Handbook of turbomachinery (Joseph Sherma, 2003 pg 342-348):
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What are the 4 major section of gasTURBINE engine?
compressor, diffuser, combustion section and turbine
The Mach number at inlet of a gas turbine diffuser is 0.3 The shape of thediffuser would be?
converging
Which part of the centrifugal pump increases the pressure of the liquid?
volute and or diffuser
What turbine does not require draft tube?
Draft tube is used to increase the pressure from the low turbine exit pressure to the pressure of the surrounding to which the fluid is rejected.Only reaction turbines require a draft tube as there is low pressure at the exit of the turbine,where as in an impulse turbine the pressure at the inlet and the exit is essentially the same, which is above the pressure to which the fluid is rejected and thus it require no draft tube.
What is throttle pressure regulator of a steam turbine?
Essentially its the pressure prior to entering the turbine chamber via the MSV (main stop valve)
What are the 4 main sections of a turbine engine?
compressor section, diffuser section, burner section and turbine
What are the 4 major section of gasTURBINE engine?
compressor, diffuser, combustion section and turbine
The Mach number at inlet of a gas turbine diffuser is 0.3 The shape of thediffuser would be?
converging
What is mix pressure turbine?
mix-pressure turbine
What is the wheel chamber pressure in turbine?
Resistance offered by turbine to the steam
Which part of the centrifugal pump increases the pressure of the liquid?
volute and or diffuser
What is intermediate pressure turbine?
Some varieties of gas turbine engines (e.g. RR Trent and RB211) have 3 concentric rotating shafts. Each shaft connects a compressor with a turbine. The low pressure compressor, or fan, is driven by the low pressure turbine. The high pressure compressor is driven by the high pressure turbine. Between the low and high pressure compressors there is an intermediate pressure compressor and, guess what... it's driven by the intermediate pressure turbine.
What is the difference between Diffuser and nozzle?
A diffuser is a device that reduces the velocity of a fluid and increases its pressure, often by expanding the flow area. A nozzle, on the other hand, is a device that accelerates the flow of a fluid by constricting the flow area, which increases its velocity. In simpler terms, a diffuser slows down fluid flow while a nozzle speeds it up.
What turbine does not require draft tube?
Draft tube is used to increase the pressure from the low turbine exit pressure to the pressure of the surrounding to which the fluid is rejected.Only reaction turbines require a draft tube as there is low pressure at the exit of the turbine,where as in an impulse turbine the pressure at the inlet and the exit is essentially the same, which is above the pressure to which the fluid is rejected and thus it require no draft tube.
What is difference bw condensing and non condensing steam turbines?
A condensing turbine uses all the energy from the steam going from high pressure turbine to secondary turbine to condensing turbine then sends the condensate back for reheating. where a non condensing turbine just uses the high pressure aspect of the steam then returns the low pressure stream back to be reheated. Condensng turbines utilises the entire available drop from high pressure to the vacuum in the condenser; a back pressure turbine only utilises only the top part, whereas an exhaust steam turbine utilises only th bottom part of the pressure drop. Hope that helps.
What is purpose of rapture disc in steam turbine?
when increase the turbine pressure it s add to the rapture disc and it s will be broken and reduce the pressure.
What is throttle pressure regulator of a steam turbine?
Essentially its the pressure prior to entering the turbine chamber via the MSV (main stop valve)
