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Now showing items 641-650 of 725
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 ...
Design and Testing of a High-Pressure-Ratio Centrifugal Stage – Probing the Aerodynamic & Mechanical Limits
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
The paper describes the design, manufacture and testing of a novel high-pressure-ratio, single-stage centrifugal compressor targeted
for use in high molecular weight applications. The stage was designed to deliver a minimum ...
Superimposing Planetary Gears as Variable Speed Drives for Rotating Equipment
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
There are many high-power and high-speed pumps installed in power plants, oil & gas applications and in petrochemical industry
consuming a considerable amount of energy. Significant interest exists within operators to ...
Using Digital Models for Condition Based Maintenance of High Pressure Pumps in SWRO Desalination Plants
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Condition based maintenance (CBM) is a very
useful technique built around the concept of
monitoring the operation of assets. This allows
performing diagnostics, troubleshooting and
determining the proper maintenance ...
Influence of Inter-Coolers Technologies on yhe Performance of Isotherm Centrifugal Compressors
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
It is well known that gas compressor work can be greatly
reduced by inter-stage cooling. Since decades, isotherm
compressors are commonly used where very large volume of
gases is needed and low power consumption is ...
Modification of Oil Brake on Cryogenic Expander for Improved Efficiency Under Varying Load Conditions
(Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)
Investigation into the operation of a 200kW brake oil expander in a 1970’s
vintage ethane cracker revealed that maximum gas throughput was
significantly below design and that the gas throughput varied significantly in
normal ...