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Performance Acceptance Test for a Condensing Regenerative Cycle Turbine Generator Drive Superheated Inlet With Condensate Heaters Out of Service
This paper discusses the test procedure that follows is intended to convey Dresser-Rand's position to customers in regard to field performance acceptance testing. The instrumentation required for the Dresser-Rand test is less costly and fewer component readings are required as compared to a PTC-6 high accuracy performance acceptance test. This...
Performance Acceptance Test for a Controlled Extraction Condensing Turbine Generator Drive Superheated Inlet
The following document is a simplified ASME performance test procedure which Dresser-Rand believes is satisfactory for the majority of extraction condensing regenerative cycles. The instrumentation required for this test is much less costly, and fewer component readings are needed to obtain good results as compared to a full ASME PTC-6...
Operating Turbomachinery on or Near the Second Critical Speed in Accordance With API Specifications
The question of when is it safe to operate turbomachinery on or near the second critical speed is addressed. A parallel evolutionary progression of the API rotordynamic specifications and rotordynamic analysis capabilities is discussed. Actual test stand results are presented, illustrating second critical speeds near the operating range with high...
Performance Acceptance Test for a Non-Condensing Turbine Generator Drive Superheated Inlet
This document is a simplified ASME performance test procedure which Dresser-Rand believes is satisfactory for the majority of non-condensing turbines. The instrumentation required for this test is much less costly, and fewer component readings are needed to obtain good results as compared to a full ASME PTC-6 test. In this...
Performance Acceptance Test for a Condensing Turbine Generator Drive Superheated Inlet
This paper discusses the test procedure that follows is intended to convey Dresser-Rand's position to customers in regard to field performance acceptance testing. The instrumentation required for the Dresser-Rand test is less costly and fewer component readings are required as compared to a PTC-6 high accuracy performance acceptance test. This...
Performance Acceptance Test for a Non-Condensing Turbine (Enthalpy Drop Method) Generator Drive Superheated Inlet and Exhaust
The following document is a simplified ASME performance test procedure which Dresser-Rand believes is satisfactory for a high percentage of non-condensing turbines. The instrumentation required for this test is much less costly, as compared to a full ASME PTC-6 enthalpy drop acceptance test. In this simplified test, only the quantities...
Steam Turbine Water Washing
This paper discusses about the capability for full speed turbine water washing which has become an increasing requirement, especially on mechanical drive units. Although load carrying capability will be somewhat reduced, essentially the overall plant requirements are maintained. Occasions may arise when deposits form on the internal parts of steam...
Frequency Evaluation of Steam Turbine Bladed Risks
In this paper, Dresser-Rand has initiated the use of the SAFE (Singh's Advanced Frequency Evaluation) diagram to help bladed disk designer. Identification of when the frequency of variable force match component's natural frequencies is the traditional method to design around potential blade failures. The identification of matching frequencies-the force with...
Improving Critical Speed Calculations Using Flexible Bearing Support FRF Compliance Data
In this paper the importance of including flexible supports in rotordynamic analyses is discussed. Various methods of including the support in rotordynamic calculations are reviewed. A method is described in which actual compliance frequency response function, FRF, data arc used directly in a rotordynamic forced response computer program to accurately...
Mechanical Upgrades to Improve Centrifugal Compressor Operation and Reliability - TP072
There are tens of thousands of centrifugal compressors currently operating with outdated technology, resulting in increased maintenance costs and reduced reliability. However, product upgrades can improve compressor operation and increase reliability and availability by incorporating the latest technology into existing rotating equipment. This paper reviews the latest technology available as...
The Application of Low Solidity Diffusers in Centrifugal Compressors
This paper focuses on low solidity diffusers. Also early results are presented from a development effort aimed at providing the basic data needed to establish application ranges and design criteria and procedures for LSDs. Results for tandem LSD are included. This paper states that LSD holds great promise for extended...
Variable Speed Drives: Hydromechanic or Electric - A Point of View Based on Experience of a Compressor Manufacturer
Applications of Variable Speed Drives VSD are expanding in numerous industrial fields during recent years for various reasons. However, hydromechanic speed variation has also improved, mainly due to the use of a hydrodynamic adjustable torque converter instead of an hydrodynamic coupling combined with fixed and revolving planetary epicyclic gears based...
Stability Analysis and Testing of a Train of Centrifugal Compressors for High Pressure Gas Injection
This paper describes the rotor dynamic stability analysis and the PTC-10 Class 1 test of a three body centrifugal compressor train for high pressure natural gas injection service. This train had a full load full pressure string test on hydrocarbon gasses to a final discharge pressure of 500 BAR (7250...
Medium-Speed Separable Compressors, an Alternative to Slow-Speed Integral Engine / Compressors for Natural Gas Transmission and Gas Storage.
This paper will review the design work that has been accomplished by Dresser-Rand Co. to develop and successfully apply modern Medium-Speed Compressors with absorbed power up to 8MW as an alternative to the slow-speed Integral Engine / Compressor. This paper will address development of the compressor, reliability, installation cost, and...
Sidestream Optimization Through the Use of Computational Fluid Dynamics and Model Testing
The development of side streams for industrial centrifugal compressors presents many difficult challenges for aerodynamics designers. The obvious solution was more effective use of computational fluid dynamics codes. However, to properly use such codes, they must be calibrated or validated against test data. To this end, OEM funded an extensive...
Rotating Stall - An Overview of Dresser-Rand Experience
This paper provides a brief review of the published literature on impeller and diffuser rotating stall. Observation are offered regarding the compressors operating characteristics that typically occur when such stall arise. Discussion of Dresser Rand's research into and experience with the various phenomenon's are presented. Also provided are commentaries on...
Simulation Testing of Alloys and Coatings for Gas Expander Applications
This paper focuses on simulation corrosion testing of unstressed Waspaloy and IN -738 Expander blade materials, and two of the coating evaluated to increase sulfidation resistance. Comparative fretting wear tests data, and rotating beam high-cycle fatigue data is also presented. The goal of this work is to decrease the potential...
Advances in Tilting Pad Journal Bearing Design
This paper has been both experimental and theoretical, and has ranged from evaluation of steady state performance to dynamic influence on rotor response. With the continuing drive for further increase in operating speed, the application of this type of bearing is reaching a limit whereby, under certain conditions, steady state...
Vectra Power Turbine Design and Development
Dresser-Rand has designed and manufactured phases of the VECTRA development program. The first unit is in the test cell, and the second is being assembled with extensive instrumentation. To complete the planned extensive development test program, a test cell dedicated to testing turbine packages has been constructed. This paper reviews...
Lateral Rotordynamic Stability Criteria for Centrifugal Compressors
This paper discusses the lateral rotordynamic stability criteria for centrifugal compressors. It provides a description of and perspective on the proposed standards on stability for the seventh edition of API 617 for centrifugal compressors. The paper gives a first level filter for identifying compressors that need a more refined stability...
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Dresser-Rand Company Info
NAICS Code
Turbine and Turbine Generator Set Units Manufacturing: 333611
