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Now showing items 191-200 of 384
Development Of A Magnetic Bearing, API Process Pump With A Canned Motor
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1992)
A new class of pumps has been developed where both end face seals and contacting bearings are eliminated. The objective is to provide a sealless pump with long life bearings meeting the duty requirements of API Standard ...
Magnetically Driven Centrifugal Pumps Eliminating Seal Problems In Refinery And Chemical Processing Plant Equipment
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Centrifugal pump design plays an essential role in the safe operation of any refinery or chemical processing plant. In analyzing the performance of centrifugal pumps, pump operating time to failure is almost always limited ...
Pump Rotor Critical Speeds Diagnosis And Solutions
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Delmarva Power Indian River Power Station’s Unit 4 has had boiler feed pump reliability problems since startup in 1980. The pump has been rebuilt nine times with post overhaul operability ranging from 30 minutes to 16 ...
New Developments In Standby Seals For Applications For Environmental Sensitive Duties
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Over the years, close attention has been paid in process facilities to the pumping of light hydrocarbons. Leakage of these products can and do cause environmental and health threatening situations. Since attention has been ...
Influence Of Oil Injection Method On Thrust Bearing Performance At Low Flow Conditions.
(Texas A&M University. Turbomachinery Laboratories, 1999)
The advantage of operating a thrust bearing in an evacuated cavity has been well documented in the literature. By draining the
oil from the bottom of the housing and eliminating standing oil around the thrust collar, ...
High Frequency Fatigue Failure In Silencer/Pulsation Dampers For Oil Free Screw Compressors.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Oil-free screw (OFS) compressors are capable of producing
high-pressure pulsations in the discharge gas stream, over a
frequency range of 200 to 3000 Hz. The fundamental pressure
pulsation is due to the opening cycle ...
Tilting Pad Journal Bearing Pivot Design For High Load Applications.
(Texas A&M University. Turbomachinery Laboratories, 1995)
Reducing pivot stress, pivot wear and preventing pivot failure are major design challenges encountered by tilting pad bearing designers in the extremely high load regime where the bearing unit load may often range up to ...
The Design And Application Of A Squeeze Film Damper Bearing To A Flexible Steam Turbine Rotor.
(Texas A&M University. Turbomachinery Laboratories, 1995)
A critical multistage steam turbine in a large chemical plant experienced high vibration levels and frequent repairs. Numerous failures occurred while passing through the rotor's first critical speed including heavy rubs. ...
Use Of Metal Bellows Noncontacting Seal And Guidelines For Steam Applications.
(Texas A&M University. Turbomachinery Laboratories, 1999)
Steam turbines are used throughout the process industries and
provide a reliable means of driving pumps, compressors; and other
rotating equipment. Carbon rings are currently the most common
way
.
of seali g these ...
Experience With High Speed Induction Motors For Direct Driving Of Compressors.
(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 ...