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Design And Retrofit Of A Low Solidity Diffuser For A Pipeline Centrifugal Gas Compressor Application.
(Texas A&M University. Turbomachinery Laboratories, 1997)
A high efficiency, single-stage pipeline centrifugal gas
compressor, originally designed with a wedge-type vaned diffuser,
was retrofitted with a vaneless diffuser along with two low solidity
diffuser configurations in ...
Vibration Reduction Or Large Steam Turbine Generator Through Bearing Analysis/Modification.
(Texas A&M University. Turbomachinery Laboratories, 1997)
Large utility steam turbines have experienced very high vibration levels on their generator exciter bearings. Units where the exciter rotor is supported by a single bearing are particularly susceptible. This synchronous ...
Discovering, The Hard Way, How A High Performance Coupling Influenced The Critical Speeds And Bearing Loading Of An Overhung Radial Compressor - A Case History.
(Texas A&M University. Turbomachinery Laboratories, 1997)
A case is presented where significant unacceptable vibration levels were encountered during mechanical testing of a single stage overhung radial compressor used in a mechanical vapor recompression process. The contract ...
Turbine Remanufacture - One Option For Reliability And Efficiency Improvement.
(Texas A&M University. Turbomachinery Laboratories, 1997)
A case study of a remanufacture of a steam turbine is presented. The turbine has been in service for 20 years. Thermal and physical stresses have taken their toll on the turbine casing and supporting hardware. Remanufacture ...
Risk Based Maintenance Of Turbomachinery.
(Texas A&M University. Turbomachinery Laboratories, 1997)
The authors help maintenance staff compete effectively for
scarce corporate resources. Their presentation defines important
concepts, including expected cost of failure ("risk"), avoided
consequential cost, and value ...
Expert Systems Provide Support For A Proactive Machinery Management Methodology.
(Texas A&M University. Turbomachinery Laboratories, 1997)
In today's competitive business environment, one is constantly called upon to make decisions that directly influence operations, and, therefore, profitability. In recent years, it has been necessary to evaluate not just ...
Determining Long-Term Performance of Cool Storage Systems from Short-Term Tests; Literature Review and Site Selection, Nov. 1997 (Revised Feb. 1998)
(Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University, 1997)
This is the preliminary report contains the literature review and site selection recommendations for ASHRAE Research Project RP 1004 — "Determining Long-term Performance of Cool Storage Systems From Short-term Tests".
Bone-Dry Running Tests Utilizing Diamond Like Carbon Coated Silicon Carbide Bearings And Polymer Lubricating Strips In An ANSI Magnetic Drive Pump
(Texas A&M University. Turbomachinery Laboratories, 1997)
Dry run failures in sealless pumps continue to be of major concern to users and, in some cases, have precluded the purchase of these types of pumps. Users are demanding robust pump designs that are more tolerant of dry ...
Design And Application Of Dual Gas Seals For Small Bore Seal Chambers
(Texas A&M University. Turbomachinery Laboratories, 1997)
Since the release of dual gas lubricated seal technology for process pumps over three years ago, this technology has provided a more versatile, efficient, safe, and less costly alternative to sealless pumps and traditional ...
Oil Lubrication Systems For Process Pumps And Related Equipment
(Texas A&M University. Turbomachinery Laboratories, 1997)
Oil lubrication systems, when required and provided for the pumping system, are the life insurance policy for the process. If the oil lubrication system should fail to perform, the results are bearing failures in pumps, ...