3,760 research outputs found

    Failure Analysis Of The Mechanical Seal Used In The Condensate Booster Pump At Onshore Slugcatcher (OSC)

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    Mechanical seals are engineered for most pumps, mixer and agitator applications in maintenance. In addition, mechanical seals deliver a full range or rotary configurations and component materials to handle virtually and fluid moved by any equipment. Mechanical seals are the most versatile type of seal for rotating shafts. Hence, there are various types of mechanical seal widely used in the pump, especially for centrifugal pump in the industries. The main objective for this project is to carry out failure analysis for the failed seal used at the condensate booster pump. Due to the unresolved failure of the pump seals that are frequently occurred, this failure analysis is important in identifying the failures and causes of the failure. The scope of studies and research are focusing on the design, operation, type of materials and maintenance-wise of the pumps and mechanical seal used at the OSC terminal

    Roméo et Juliette, April 21, 2011

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    This is the concert program of the Roméo et Juliette by Charles Gounod performance on Thursday - Sunday, April 21 - 14, 2011 at 8:00 p.m., at the Boston University Theater, 264 Huntington Avenue, Bosotn, Massachusetts. Digitization for Boston University Concert Programs was supported by the Boston University Center for the Humanities Library Endowed Fund

    Microstructure Characterization of Creep-Tested Reformer Tube Material

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    In this project, the main objective was to study the transformation of a reformer tube material during creep by comparing the microstructure in creep-tested samples with an as-cast sample. The comparison was made in terms of the shape, average particle size, percentage particle area and additional microstructural characteristics of the creep-tested samples. Some basic characterization of creep voids was also included to study the effect of creep

    FATIGUE LITE PREDICTION METHODS IN AN ENGINE MATERIAL

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    Often, machine members are found to have failed due to the action of repeated or fluctuating stresses; yet the most careful analysis revealed that the actual maximum stresses were well below the ultimate strength of the material, and quite @uently even below the yield strength. The most distinguish characteristic of this failures is that ttre stresses have b€en repeated a very large number of times. Hence, the failtre is called a fatigue failure. tn this study, crankshaft has been used as a component to analyze and evaluate its fatigue perfonnance. Fatigue is the primary cause of failurc in int€rnal combustion engines due to the cyclic loading conditions and the stress concentratiom in the crank pin fillet. There are a lot of methods used to predict the f*igrre life. However, for this projecL only the most common method to predict the fatigue life will be focuse{ namely Stress Life Method and Strain Life Method. These two methods will be compared and one method will be selected to be used in fatigue life estimation of the crankshaft. Finite Element Analysis (FEA) will be done using ANSYS to obtain variation of stress magnitude at critical locations. In addition, the effect of diffeleot manufacturing pnocess and material will be investigatd to determine the fatipe performance of the crankshaft
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