ME305 Lecture Notes - Lecture 4: Kaplan Turbine, Inq Mobile, Undera

23 views10 pages

anonymous175

11 Oct 2021

School

Sardar Vallabhbhai National Institute of Technology - SVNIT Surat

Department

Engineering

Course

ME305

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

9. 1) a kaplan turbine develops 50,000 k undera net co ith on overald eficien c ef 85. head of 30 m. 2 , flouw ratio =6,64 dia. or hub : o 35 times of the dia, of the runner, then calcw ae, (1) jia. of the tunner: speed of turbine f. Ui) spec ific speed op the turbi ne. A a aplan hurbine orling under a shart power, the eudlet dja. of the le ve lops oeve lops is 1 . The gldde the hub dia. blade a ngle at the exbreme edqe oc +he r un n e r is o. The hydrouic 4 vetall efficienc r e s . 1s 2ero at o t l e t , then dederm ine the runn e r vang at h e extreme edge of h e runn e r f spec angles ofthe turbine. U18meoh the f head of 25m . turbincs turbincs uhril.

Related Questions

A regenerative gas turbine power plant is
shown in Fig. P1. Air enters the compressor at 1
bar, 27ºC with a mass flow rate of 0.562 kg/s and
is compressed to 4 bar. The isentropic efficiency of
the compressor is 80%, and the regenerator
effectiveness is 90%. All the power developed by
the high-pressure turbine is used to run the
compressor. The low-pressure turbine provides the
net power output. Each turbine has an isentropic
efficiency of 87% and the temperature at the inlet
to the high-pressure turbine is 1200 K. Sketch the
corresponding T – s diagram and determine: (a) The net power output, in kW. (b) The thermal
efficiency. (c) The temperature of the air at states
2, 3, 5, 6, and 7, in K.

rosechinchilla472

A turboprop engine consists of a diffuser,
compressor, combustor, turbine, and nozzle. The
turbine drives a propeller as well as the
compressor. Air enters the diffuser with a
volumetric flow rate of 83.7 m3
/s at 40 kPa, 240 K,
and a velocity of 180 m/s, and decelerates
essentially to zero velocity. The compressor
pressure ratio is 10 and the compressor has an
isentropic efficiency of 85%. The turbine inlet
temperature is 1140 K, and its isentropic efficiency
is 85%. The turbine exit pressure is 50 kPa. Flow
through the diffuser and nozzle is isentropic. Using
an air-standard analysis, determine: (a) the power
delivered to the propeller, in MW. (b) the velocity at
the nozzle exit, in m/s. Neglect kinetic energy
except at the diffuser inlet and the nozzle exit

rosechinchilla472

ME305 Lecture Notes - Lecture 4: Kaplan Turbine, Inq Mobile, Undera

Document Summary

Get access

Related Questions