Browsing by Author "Turbomachinery Symposium (27th : 1998)"
Now showing items 1-19 of 19
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Jungbauer, David E.; Blodgett, Larry E. (Texas A&M University. Turbomachinery Laboratories, 1998)Much work has been done over the years to predict the potential for acoustic fatigue in piping systems associated with pressure reducing systems in the design stage. However, an easily usable screening criteria for ...
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Takeuchi, Takao; Kataoka, Tadashi; Nagasaka, Hiroshi; Katutani, Momoko; Ito, Masanobu; Muraki, Ryoji (Texas A&M University. Turbomachinery Laboratories, 1998)Ductile materials have been used for dry gas seal mating rings to replace conventional sintered materials that have experienced occasional brittle fracture. The ductile materials require a coating to make them suitable ...
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Jongh, Frits M. De; Hoeven, Pieter Van Der (Texas A&M University. Turbomachinery Laboratories, 1998)This paper explains how synchronous rotor instability can occur in high speed turbomachinery due to differential heating of bearing journals. Theoretical investigations have indicated that rotors supported by fluid-film ...
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Pardivala, Darayus; Dyer, Stephen W.; Bailey, Clark D. (Texas A&M University. Turbomachinery Laboratories, 1998)This paper describes the design modifications and active balancing on a 19,000 hp integrally forged steam turbine rotor to improve its dynamic characteristics and reliability. The turbine was purchased as a replacement ...
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Yakuwa, Hiroshi; Narita, Toshio; Kawasaki, Masamichi; Miyasaka, Matsuho; Fang, Cheng; Go, Tetsu; Nakahama, Shuhei (Texas A&M University. Turbomachinery Laboratories, 1998)A nickel-base superalloy for FCC power recovery turbine rotors was developed, which shows excellent sulfidation-corrosion resistance, high temperature strengths, and hot workability. To investigate the influences of the ...
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Whalen, John K.; Krieser, Skip (Texas A&M University. Turbomachinery Laboratories, 1998)Many pieces of rotating equipment experience oil leaks. Any piece of equipment with oil fed bearings, such as turbines, motors, gearboxes, and compressors, are susceptible to oil leaks from the bearing case seals. Usually ...
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Gilon, Dominique C.; Boutriau, Louis (Texas A&M University. Turbomachinery Laboratories, 1998)This paper presents the high speed, high power induction motor as a viable alternative for direct driving of compressors. A comparison is made between the existing different mechanical and electrical solutions, and the ...
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Meher-Homji, Cyrus B.; Gabriles, George (Texas A&M University. Turbomachinery Laboratories, 1998)With blading problems accounting for as many as 42 percent of the failures in gas turbines (Allianz, 1 978) and with its severe effect on plant availability, there is a pressing need for a unified treatment of the causes, ...
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Blahovec, James F.; Matthews, Terryl; Eads, Kevin S. (Texas A&M University. Turbomachinery Laboratories, 1998)Refineries, petrochemical companies, and gas processors are continually trying to increase plant production while budgets are getting tighter. Rerating process centrifugal compressors has become an ever-increasing trend ...
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Safwani, Ali H. Al; Dechoudhury, Pranabesh; Garvey, Martin; Farabaugh, Chet (Texas A&M University. Turbomachinery Laboratories, 1998)This paper is a discussion of the design, manufacture, test, and field operation of a totally oil-free string of rotating equipment. The turbomachinery string consists of a multistage centrifugal compressor driven by a ...
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Mitchell, Rod (Texas A&M University. Turbomachinery Laboratories, 1998)Recently, a major chemical company put together a project to specifically address the repetitive corrosion problem experienced on the long term storage of critical rotors in a Texas facility. However, as the strategy ...
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Alves, Paul (Texas A&M University. Turbomachinery Laboratories, 1998)Magnetic bearings have reached the point in their development where they can be considered a mature technology, and as such, should gain wide acceptance by the rotating equipment industry. While current industrial ...
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Bernstein, Henry L. (Texas A&M University. Turbomachinery Laboratories, 1998)Material issues are of paramount importance for the reliable and cost effective operation of gas turbine engines. Because of the high turbine temperatures, the materials degrade over time, which requires their repair ...
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Henry, David A.; DiCristoforo, Paul E.; Ewer, Timothy J.; Mindock, Michael (Texas A&M University. Turbomachinery Laboratories, 1998)A six stage mechanical drive steam turbine rated at 13,300 hp was installed at a petroleum facility in Texas to drive a multistage centrifugal compressor used in recycle gas service on a high pressure hydrogen cracker. ...
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Root Cause Analysis Of A Long Term Reliability Problem With Reciprocating Compressors In H2 Service. Drosjack, Michael J.; O'Neill, Philip E.; Lorio, Dale V. (Texas A&M University. Turbomachinery Laboratories, 1998)Three large reciprocating compressors in H2 makeup service had been a chronic reliability problem for 30 years. Unit revisions greatly compounded this issue by eliminating builtin spare capacity. A Root Cause Analysis ...
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Heckel, Bruce G.; Davis, Frank W. (Texas A&M University. Turbomachinery Laboratories, 1998)The purpose of this paper is to describe how computer simulation was used to size the main starter motors for single shaft gas turbine driven compressor strings used in a large LNG plant. The paper describes how the ...
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Evans, B. Fred; Shabi, Larry G. (Texas A&M University. Turbomachinery Laboratories, 1998)A large, double ended drive synchronous motor experienced severe, limiting lateral vibration during commissioning of a major plant expansion. The motor driving a centrifugal compressor providing process air is decoupled ...
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Turbomachinery Symposium (27th : 1998) (Texas A&M University. Turbomachinery Laboratories, 1998)
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Gruwell, David R.; Zeidan, Fouad Y. (Texas A&M University. Turbomachinery Laboratories, 1998)This lecture discusses how the vibration characteristics and eccentricity measurements were combined with rotordynamic analyses to help improve the reliability of a turbine generator unit. It also explains certain ...