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Now showing items 71-80 of 104
Steam Challenge: Developing A New DOE Program to Help Industry be Steam Smart
(Energy Systems Laboratory (http://esl.tamu.edu), 1998-04)
Last year, the Alliance to Save Energy, the Department of Energy's Office of Industrial Technologies, and a cadre of private companies and associations formed an innovative "Steam Partnership" with the goal of developing ...
Verification of Motor Repair Quality
(Energy Systems Laboratory (http://esl.tamu.edu), 1998-04)
Motor testing at Advanced Energy has shown that a motor that has not suffered irreparable damage as a result of failure can be repaired to perform as well as before the failure. But the only way to achieve the performance ...
Pump Rotordynamics Made Simple
(Texas A&M University. Turbomachinery Laboratories, 1998)
One of the foremost concerns facing pump users today is that of rotordynamics. As pump speeds have increased to provide improved efficiencies and lighter packages, rotordynamics has assumed a significantly greater role in ...
Hydraulically Rerating Centrifugal Pumps To Improve Reliability
(Texas A&M University. Turbomachinery Laboratories, 1998)
The authors present two case studies where improperly applied hydraulics resulted in poor mechanical reliability, due to chronic flow instability problems. A successful hydraulic rerate of these pumps, which required minimal ...
Experience In The Use Of Flexure Pivot Tilt Pad Bearings In Boiler Feed Water Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
Boiler feedwater (BFW) pumps are among the most critical rotating equipment in power plants. The bearings in these pumps must be able to attenuate rotor vibrations and other hydraulic forces while still maintaining a high ...
Polymer Composite Industrial Chemical Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
Polymers are important materials in the design and application of pumps and piping in many chemical processing systems today. The ability of polymer composites to resist chemical attack is the primary reason for use in ...
Severe Suction Bell Damage In Large, Open Impeller, Vertical Turbine Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
Sixteen (nine 1500 hp and seven 500 hp) single stage, vertical turbine, cooling water pumps suffered massive metal loss within two years of installation. All pumps had cast iron suction bells and semiopen, manganese bronze ...
Computer Simulation Of The Flowpath In Magnetic Sealless Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
For applications that involved fluids with a high rate of change of vapor pressure or low specific heat, it was found that there could be inadequate flow through the thrust bearing. This effect was compounded by the heat ...
CFD Analysis Of A Double Suction Cooling Water Pump
(Texas A&M University. Turbomachinery Laboratories, 1998)
In 1991, four large double suction cooling pumps were installed at a chemical plant in Texas. Although these pumps met performance specifications on the test stand, they proved to be noisy when installed. Sound power levels ...
Using Fiber-Optic Pressure Sensors To Detect Cavitation And Flow Instabilities In Centrifugal Pumps
(Texas A&M University. Turbomachinery Laboratories, 1998)
This paper introduces the benefits of applying the fiber-optic Fabry-Perot interferometer (ffpi) pressure sensor as a means of detecting cavitation and flow instabilities in centrifugal pumps. The need for monitoring dynamic ...