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Now showing items 21-30 of 32
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 ...
Design, Construction, And Applications Of Magnetically Coupled Centrifugal Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Since the early 1970s, the environmental protection has become more and more important when designing industrial plants and, today, this question is always first in any public discussion. Thus, the engineering profession ...
Evolution Of A Mechanical Seal Condition Monitoring System
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Mechanical face seals have been used in fluid handling equipment for many years, with a long history of reliability and safety. Most users of mechanical seals, however, tend to have a few critical service areas where process ...
Experimental Evaluation Of Bladder Type Pulsation Dampeners For Reciprocating Pumps
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
Pulsation dampeners are frequently used to reduce piping pressure pulsations and vibrations in reciprocating pump systems. Despite their extensive use, scientific understanding of how the dampeners work and what design ...
Improving Pump Reliability In Light Hydrocarbon And Condensate Service With Metal Filled Graphite Wear Parts
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1990)
A number of single stage overhung and multistage horizontal pumps with a history of dry running seizure have been modified by replacing the metal stationary wear parts with metal filled graphite. After modification, the ...
Romex - An Expert System Testbed For Turbomachinery Diagnostics.
(Texas A&M University. Turbomachinery Laboratories, 1990)
A rule based system developed for vibration oriented diagnosis of turbomachinery for fault identification and for predictive maintenance is described. The system is implemented in a PC based PROLOG environment, with the ...
Piping Vibration Analysis.
(Texas A&M University. Turbomachinery Laboratories, 1990)
Excessive piping vibrations are a major cause of machinery downtime, leaks, fatigue failures, high noise, fires, and explosions in refineries and petrochemical plants. Excessive vibration levels usually occur when a ...
Energy Recovery In A Gas Distribution Station By Combination Of Expanders With Planetary Gear And Optimum Single Valve Control.
(Texas A&M University. Turbomachinery Laboratories, 1990)
The prevailing use of expansion gases in distribution stations can be economically replaced by the application of turbo expanders. The advantage of turbine impulse wheels is that they have high efficiencies, even at very ...