Downloads: 127
Research Paper | Mechanical Engineering | India | Volume 4 Issue 6, June 2015
Modeling & Analysis of Labyrinth Seals Used in Steam Turbines
L. Karthik Chakravarthy [2] | Dr. P. Srikanth [2]
Abstract: Labyrinth seals are used to provide a tortuous passage to help prevent leakage by allowing the fluid to pass through a long and difficult gap. Labyrinth seals on rotating shafts provide non contact sealing action by controlling the passage of the fluid through large no. of chambers by centrifugal motion as well as by the formation of controlled fluid vortices. The fluid that gets escaped from the main chamber becomes entrapped in the cavities of labyrinth where it is forced into a vortex like motion. During the service period of steam turbines, labyrinth seals which are mounted on the rotor, as the increase of wear rate in the labyrinth seal material it increases the clearance between the stator & rotor. If the wear rate & clearance is high, it causes the leakage of steam flow through the seals which effects the total efficiency of the steam turbine. The main objective of this work is to evaluate the leakage flow rate due to the clearance caused by the wear of the seal material in labyrinth seals by using CFD & adopting a new material (Silicon Carbide) to the labyrinth seals, thereby calculating the leakage flow rate and compare it with the theoretical calculated leakage flow rate using mathematical results.
Keywords: Labyrinth seals, Computational Flow Dynamics CFD, Steam flow, Steam turbine, & Leakage Flow rate
Edition: Volume 4 Issue 6, June 2015,
Pages: 1808 - 1813
Similar Articles with Keyword 'Steam turbine'
Downloads: 5 | Weekly Hits: ⮙1 | Monthly Hits: ⮙1
Case Studies, Mechanical Engineering, Indonesia, Volume 10 Issue 12, December 2021
Pages: 554 - 560Bearing Vibration Analysis on Steam Turbine
Risal Abu [2] | Afdal
Downloads: 112
Research Proposals or Synopsis, Mechanical Engineering, India, Volume 6 Issue 11, November 2017
Pages: 1446 - 1449Test Protocol for Accelerated Creep and Transient Thermo-Mechanical Testing of Super Critical Steam Turbine Rotor
Bishnu Pada Pal | M Naga Suresh | K Ramakrishna | A Narayana Teja | Supak Pore | Prabhat Kr. Hensh | Somnath Nandi | Maneesh Batrani