CFD Analysis of Turbine of a Turboexpander

Amarthaluri, Lalitha Jyothi (2017) CFD Analysis of Turbine of a Turboexpander. MTech thesis.

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Abstract

Cryogenic Turboexpander is a refrigerating device that mostly used in Cryogenic plants for industrial refrigeration. It consists of Turbine, Compressor, Shaft, Diffuser, Nozzle, Bearings etc. In this device turbine and compressor rotates on same shaft. It is also a pressure letting down device by expanding the gas through the turbine from high pressure to low pressure. This project describes the analysis of fluid flow through an expansion turbine at higher speeds. It deals with computational analysis of fluid flow through radial turbine where Nitrogen is taken as working fluid. The analysis has been done on Ansys Workbench using the components like Bladegen, Turbogrid, and CFX Pre and Post. The turbine blade profile, hub and shroud has been designed in bladegen. The meshing of turbine wheel has been done in Turbogrid. CFX Pre and post are used for giving boundary conditions and for further analysis of fluid. Temperature, Pressure, velocity contours have been drawn from CFX post and various graphs like Mach Number, has been plotted.

Item Type:Thesis (MTech)
Uncontrolled Keywords:Cryogenic Refrigeration; Turbine blades; Blade editor; Hub; Shroud; CFX Analysis
Subjects:Engineering and Technology > Mechanical Engineering > Cryogenics
Divisions: Engineering and Technology > Department of Mechanical Engineering
ID Code:8977
Deposited By:Mr. Kshirod Das
Deposited On:25 Apr 2018 11:17
Last Modified:25 Apr 2018 11:17
Supervisor(s):Satapathy, Ashok Kumar

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