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Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
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Author | Facchini, B. Simonetti, F. Tarchi, L. Abram, R. Maritano, M. |
Copyright Year | 2012 |
Abstract | This paper presents the results of the experimental campaign on the measurement of thermal contact conductance (TCC) in a realistic test rig replicating the contact between the ceramic heat shield and the liner for an ANSALDO Energia s.p.a. heavy-duty gas turbine. The designed test rig is made up of a single sector consisting of a combustor ceramic brick and a liner sector with a non-rigid ceramic fiber textile insulating layer in between, to better replicate the operating conditions of the combustor components. The experimental campaign was carried out with a steady-state technique applying an uniform thermal load on the heat shield surface. The effect of brick-holders, that in the actual combustor anchor the bricks on the liner walls, was replicated with static loads. The liner sector was tested without the brick-holder grooves first and afterwards their effect was assessed in the same test conditions; the test campaign also aimed at measuring the load cycling effect on TCC. Validation of the measured TCC was then performed with a finite element code to compare the predicted temperature profiles with the measured ones. |
Sponsorship | International Gas Turbine Institute |
Starting Page | 945 |
Ending Page | 955 |
Page Count | 11 |
File Format | |
ISBN | 9780791844700 |
DOI | 10.1115/GT2012-68410 |
Volume Number | Volume 4: Heat Transfer, Parts A and B |
Conference Proceedings | ASME Turbo Expo 2012: Turbine Technical Conference and Exposition |
Language | English |
Publisher Date | 2012-06-11 |
Publisher Place | Copenhagen, Denmark |
Access Restriction | Subscribed |
Subject Keyword | Gas turbines Bricks Ceramic fibers Heat shielding Contact resistance Ceramics Finite element analysis Temperature profiles Combustion chambers Steady state Stress Textiles |
Content Type | Text |
Resource Type | Article |
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