EPrints@IIT Delhi >
Faculty Research Publicatons  >
Mechanical Engineering >

Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/553

Full metadata record

DC FieldValueLanguage
dc.contributor.authorGodara, B-
dc.contributor.authorTandon, N-
dc.contributor.authorGupta, K-
dc.identifier.citationEngineering Failure Analysis, 5(1), 13-20en
dc.description.abstractInvestigation of failures in connectors of compressor suction and discharge lines in roof mounted package air conditioners designed for use in passenger coaches of Indian Railways was the objective of the study. The connectors consisted of copper pipe and corrugated red brass flexible tubing reinforced with bronze wire braiding. Resonance between the discharge line and the first harmonic of the compressor excitation frequency was the cause of failure in this line. In the suction line resonance was ruled out as a reason of failure.Tests conducted on the compressor connector subassembly to simulate shocks encountered during coach movement could replicate field failures. A change in the compressor mounting from soft to rigid resulted in elimination of the failures in these simulated tests. So shock was concluded as a reason for suction line failures and a change in mounting of the compressor has been recommended as a solution to prevent failures. The connectors have been changed to plain copper tubes with a geometry tested for absence of resonance with compressor excitation frequencies.en
dc.format.extent190256 bytes-
dc.subjectair conditioneren
dc.subjectmachinery failuresen
dc.subjectrailway engineeringen
dc.titleA failure analysis approach to solving refrigerant connector failures in rail coach air conditioning unitsen
Appears in Collections:Mechanical Engineering

Files in This Item:

File Description SizeFormat
godarafai1998.pdf185.8 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback