Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
LABYRINTH SEALS - A LITERATURE REVIEW
Submission Author:
Willian Moreira Duarte , MG , Brazil
Co-Authors:
Glycon Pena de Souza Barros, Carlos Barreira Martinez, Edna Maria de Faria Viana, Hélio Augusto Goulart Diniz, Willian Moreira Duarte
Presenter: Willian Moreira Duarte
doi://10.26678/ABCM.ENCIT2018.CIT18-0775
Abstract
Gaps between stationary and rotating parts are inevitable in turbomachines. The leakage flow between the rotor-stator gaps of the high pressure region to the low pressure region can be reduced using seals. The most commonly used seals or seals in turbines are those of the brush seal type, seal oring, grooves, retainer, felt, gaskets, mechanical face seal and labyrinth. The labyrinth seals found in the literature are classified as plane, straight-through, staggered, stepped converged and stepped diverged. This paper presents a systematic approach to the different types of labyrinths and mathematical models that describe the flow and the head loss through these labyrinths.
Keywords
Labyrinth seal, volumetric flow, Head Loss, turbines
