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Now showing items 111-120 of 221
A Review of Aerodynamically Induced Forces Acting on Centrifugal Compressors, and Resulting Vibration Characteristics of Rotors
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This tutorial reviews the various types of forces that can cause non-synchronous vibrations in centrifugal compressors. Many of these forces are aerodynamically-induced, such as impeller or diffuser stall or impeller / ...
Centrifugal Compressor Evolution
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This tutorial addresses the advancements that have been made during the past 50 years in the design, analysis, and manufacturing methods for centrifugal compressors. The paper provides a historical perspective on these ...
Multidisciplinary Approach to Failure Analysis of Turbomachinery Components
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
This tutorial session is intended to provide insights into the failure analysis approach taken by authors for various components across different types of turbomachinery, such as steam turbines, axial and centrifugal ...
Bearings for Oil-Free Rotating Machinery
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
The short course provides practicing engineers with a comprehensive review of existing gas bearing technologies including their principle of operation, analysis and experimental verification, comparison amongst other gas ...
Turbomachinery Control Valves Sizing and Selection
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Turbomachinery Controls dedicated to centrifugal and
axial compressors use several types of control valves, such as:
-Antisurge (recycle) valve
-Suction throttle valve
-Hot-gas bypass valve
-Quench control valve
As the ...
Conversion of a Horizontal Split Centrifugal Compressor with a Closed Impeller to an Open Face Impeller with a One Piece Diaphragm
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
A 1970 vintage polyethylene plant faced a market driven requirement to improve its
polyethylene grade.
The improved, new grade required a new highly reactive catalyst and needed to be ready for
customer’s product trial in ...
The Selection and Design of Dual Pressurized Liquid Sealing Systems
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Dual mechanical seals represent one of the most common approaches to improving seal reliability and reducing process emissions. While the presence of the pressurized barrier fluid provides significant benefits, the challenge ...
Overview of Turbomachinery for Super-Critical CO2 Applications
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Cycles involving super critical carbon dioxide (sCO2) have the potential to increase system efficiencies well beyond current industry norms. Research on advanced direct and indirect cycles is ongoing in national labs and ...
Advancements in Mechanical Sealing - API 682 Fourth Edition
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
API 682 is the leading document for mechanical seals in petrochemical, chemical, and pipeline services worldwide. It has combined the aspects of seal design, testing, standardization, and applications to provide the users ...
Investigating & Improving the Drooping Curve of A Two-Stage Feed Pump
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
A two-stage between-bearing pump of the upgraded material was supplied to replace the existing machine. The pump utilized a higher number of impeller blades to obtain higher efficiency at its design point, but exhibited a ...