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Keywords: leakage
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2024, 146(5): 051019.
Paper No: GTP-23-1331
Published Online: December 26, 2023
... issues in GTs, numerical studies of potential gas leakages are essential to understand the properties of flammable jets and the development of fuel clouds in the GT enclosure. In this paper, the effects of (i) hydrogen concentration in the fuel, (ii) pressure ratio of the leak, and (iii) intensity...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051019.
Paper No: GTP-22-1478
Published Online: January 10, 2023
..., the FPDS leakage is roughly up to 26% larger than the HCS leakage, while the 20-blade LS leaks in between both. The comparison of results shows the LS has insignificant forces compared to those from the HCS and FPDS, both producing a comparable C eff and similar crossover frequencies (C eff > 0...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111007.
Paper No: GTP-21-1278
Published Online: September 27, 2021
... seal tooth clearance oil-air mixtures multiphase pump rotordynamic coefficients leakage The balance-piston seal is widely used in a centrifugal pump to balance the axial thrust force because of its robust design and high reliability in operation [ 1 ]. The balance-piston seal...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111009.
Paper No: GTP-21-1280
Published Online: September 27, 2021
..., transitional, and turbulent flow regimes for a smooth annular seal based on the test results of Zhang et al. [ 12 , 13 ]. The performance (leakage and rotordynamic coefficients) of the smooth seal is discussed and summarized under the following four flow conditions: Laminar flow conditions...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2021, 143(5): 051003.
Paper No: GTP-20-1180
Published Online: March 11, 2021
...Xinbo Dai; Xin Yan; Kun He; Jun Li; Zhenping Feng The finite element analysis (FEA) and computational fluid dynamics (CFD) methods are utilized to investigate the leakage performance degradations in two kinds of flexible seals (i.e., forward bending and backward bending) and two kinds of shroud...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2021, 143(1): 011015.
Paper No: GTP-20-1477
Published Online: January 4, 2021
...-liquid to pure-gas conditions. Zhang and Childs (2019) (Zhang, M., and Childs, D., 2019, “A Study on the Leakage and Rotordynamic Performance of a Long Labyrinth Seal Under Mainly-Air Conditions,” ASME J. Eng. Gas Turbines Power, 141(12), p. 121024) conducted a comprehensive experimental study...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2020, 142(11): 111012.
Paper No: GTP-20-1479
Published Online: October 28, 2020
...Min Zhang; Dara W. Childs; Dung L. Tran; Hari Shresth The labyrinth seal is one of the most popular noncontact annular seals used in centrifugal compressors to improve machine efficiency by reducing the secondary flow leakage. Reducing the radial clearance C r can effectively decrease the seal's...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2020, 142(8): 081001.
Paper No: GTP-19-1483
Published Online: July 31, 2020
...Kali Charan Nayak One of the basic assumptions of the traditional labyrinth seal leakage calculation is that rotation has minimal or no effect on seal leakage. With the advancement of gas turbine technology, to achieve high performance, seals are run at tight clearances and very high rotational...