Study and Field Tests of the Novel Low Pressure Fogger System for Industrial Gas Turbine

2008 ◽  
Vol 130 (1) ◽  
Author(s):  
Y. Levy ◽  
V. Sherbaum ◽  
V. Ovcharenko ◽  
Y. Sotsenko ◽  
I. Zlochin
Keyword(s):  
Gas Turbine ◽  
Closed Loop ◽  
Field Tests ◽  
Low Pressure ◽  
The Novel ◽  
Test Results ◽  
Sauter Mean Diameter ◽  
Jet Engine ◽  
Compressor Inlet ◽  
Industrial Gas Turbine

Based on three patented innovations (air-assist atomizer, wetness sensor, and closed loop programmable logic controller (PLC)), a new low-pressure power gas turbine augmentation system was developed. Two modifications of air-assist atomizer were tested in the Jet Engine Laboratory of the Technion. The tests were performed to investigate influence of thermodynamic parameters on spray characteristics, as droplet size and velocity distribution of the spray. The system as a whole has passed field test in a gas turbine of a power station. Droplet characteristics, conceptual design aspects, and test results are described. It was found that the droplet sauter mean diameter was 20μm. The field tests demonstrated that the power augmentation system operates safely and reliably. Wetness sensors and closed loop PLC proved to be a safe method for power augmentation, which prevents droplet penetration into the compressor inlet.

Low Pressure Fogger System for Power Augmentation of Industrial Gas Turbine

2005 ◽  
Author(s):  
Y. Levy ◽  
V. Sherbaum ◽  
V. Ovcharenko ◽  
Y. Sotsenko ◽  
I. Zlochin
Keyword(s):  
Velocity Distribution ◽  
Gas Turbine ◽  
Conceptual Design ◽  
Field Test ◽  
Closed Loop ◽  
Low Pressure ◽  
Power Station ◽  
Jet Engine ◽  
The Subject ◽  
Industrial Gas Turbine

Based on three patented innovations (air-assist atomizer, wetness sensor, closed loop PLC), a new low-pressure power GT augmentation system was developed. Two modifications of air-assist atomizer were tested in the Jet Engine Laboratory of the Technion. The tests were performed to investigate influence of thermodynamic parameters on spray characteristics, as droplet size and velocity distribution of the spray. The system as a whole has passed field test in a gas turbine of a power station. Droplet characteristics, conceptual design aspects and tests results are the subject of this paper.

scholarly journals Study on the Turbine Vane and Blade for a 1500°C Class Industrial Gas Turbine

1993 ◽  
Author(s):  
S. Amagasa ◽  
K. Shimomura ◽  
M. Kadowaki ◽  
K. Takeishi ◽  
H. Kawai ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Film Cooling ◽  
High Efficiency ◽  
Development Program ◽  
Test Results ◽  
Directionally Solidified ◽  
Barrier Coating ◽  
Turbine Vane ◽  
Nickel Base ◽  
Industrial Gas Turbine

This paper describes the summary of a three year development program for the 1st stage stationary vane and rotating blade for the next generation, 1500°C Class, high efficiency gas turbine. In such a high temperature gas turbine, the 1st turbine vane and blade are the most important hot parts. Full coverage film cooling (FCFC) is adopted for the cooling scheme, and directionally solidified (DS) nickel base super-alloy and thermal barrier coating (TBC) will be used to prolong the creep and thermal fatigue life. The concept of the cooling configuration, fundamental cascade test results and material test results will be presented.

Failure Investigation of 1st Stage Buckets From Frame 3002, 10 MW Gas Turbine Unit

2011 ◽  
Author(s):  
Girish M. Shejale ◽  
David Ross
Keyword(s):  
Gas Turbine ◽  
Test Results ◽  
High Carbon ◽  
High Carbon Content ◽  
Metallurgical Investigation ◽  
Root Cause ◽  
Failure Investigation ◽  
Surface Failure ◽  
Grain Boundary Embrittlement ◽  
Industrial Gas Turbine

The 1st stage buckets in Frame 3002, 10 MW industrial gas turbine experienced premature failures. The buckets failed unexpectedly much earlier than the designed bucket life. Bucket material is Inconel 738, with platinum-aluminized coating on the surface. Failure investigation of the buckets was performed to know the root cause of the failure. The failure investigation primarily comprised of metallurgical investigation. The results of the metallurgical investigation were co-related with the unit operational history. This paper provides an overview of 1st stage buckets investigation. The metallurgical investigation performed concluded prime failure mechanism due to high carbon content of bucket material and improper heat treatment. The bucket coating was initially damaged during the first loading and fracture occurred due to grain boundary embrittlement in short span of service. The metallurgical tests performed included Visual inspection, Scanning Electron Microscopy (SEM), Energy Dispersive Analysis of X-ray (EDS), Chemical analysis, Tensile test and Hardness survey. The test results, discussions and conclusions are presented in this paper.

Design, Fabrication, and Testing of a Semi-Closed Cycle Gas Turbine Engine

2001 ◽  
Author(s):  
C. Rodgers
Keyword(s):  
High Pressure ◽  
Gas Turbine ◽  
Low Pressure ◽  
Exhaust Gas ◽  
Closed Cycle ◽  
Demonstration Program ◽  
Turbine Engine ◽  
Compressor Inlet ◽  
Gas Recirculation ◽  
Engine Development

A small semi-closed gas turbine was designed, fabricated, and tested to demonstrate the cycle the cycle feasibility with exhaust gas recirculation. The demonstrator unit comprised a low pressure spool compressor and turbine supercharging a high pressure spool compressor and turbine, whose exhaust passed through a recuperator, and was subsequently split, one half being recirculated to the high pressure spool compressor inlet via an intercooler, and the remaining half expanded across the low pressure spool turbine. The design and fabrication phases proceeded on schedule but commencement of engine development testing encountered mechanical difficulties. These were eventually resolved and shakedown testing of the demonstrator accomplished prior to final contractual delivery. The demonstration program was funded under a NASA LeRc contract NAS3-27396.

Aircraft Gas Turbine Rotating Compressor Disk Vibration

1965 ◽  
Author(s):  
R. F. French
Keyword(s):  
Experimental Investigation ◽  
Gas Turbine ◽  
Test Results ◽  
Jet Engine ◽  
Insignificant Effect ◽  
Low Mass ◽  
Centrifugal Loading ◽  
Compressor Disk

This paper is concerned with the experimental investigation of vibration in aircraft jet-engine rotating compressor disks of two different configurations. The blades in the first configuration were small, with relatively low mass, and had an insignificant effect on the disk vibration except for centrifugal loading. The second configuration had relatively large blades which resulted in combined blade and disk modes. The test techniques, test results, and examples of some known phenomenon as they occur in lightweight aircraft jet-engine disks are discussed.

Structural Design and High-Pressure Test of a Ceramic Combustor for 1500°C Class Industrial Gas Turbine

1997 ◽  
Vol 119 (3) ◽  
pp. 506-511 ◽  
Author(s):  
I. Yuri ◽  
T. Hisamatsu ◽  
K. Watanabe ◽  
Y. Etori
Keyword(s):  
Fracture Toughness ◽  
High Pressure ◽  
Gas Turbine ◽  
Structural Design ◽  
Metal Structure ◽  
Combustion Efficiency ◽  
Test Results ◽  
Industrial Gas Turbine ◽  
Hybrid Ceramic ◽  
Load Conditions

A ceramic combustor for a 1500°C, 20 MW class industrial gas turbine was developed and tested. This combustor has a hybrid ceramic/metal structure. To improve the durability of the combustor, the ceramic parts were made of silicon carbide (SiC), which has excellent oxidation resistance under high-temperature conditions as compared to silicon nitride (Si3N4), although the fracture toughness of SiC is lower than that of Si3N4. Structural improvements to allow the use of materials with low fracture toughness were made to the fastening structure of the ceramic parts. Also, the combustion design of the combustor was improved. Combustor tests using low-Btu gaseous fuel of a composition that simulated coal gas were carried out under high pressure. The test results demonstrated that the structural improvements were effective because the ceramic parts exhibited no damage even in the fuel cutoff tests from rated load conditions. It also indicated that the combustion efficiency was almost 100 percent even under part-load conditions.

Application of the GT35 Industrial Gas Turbine for the Propulsion of Fast Ferries

1997 ◽  
Author(s):  
Bo S. Svensson
Keyword(s):  
Gas Turbine ◽  
Support System ◽  
Power Production ◽  
Low Pressure ◽  
Rotor System ◽  
Liquid Fuels ◽  
System Behavior ◽  
Industrial Gas Turbine

The paper describes the modifications required to make the GT35 industrial gas turbine suitable for use in fast ferries as propulsion machinery. The modifications made to get the unit to meet pitch and roll requirements are dealt with, as well as the engine support system modifications. The GT35’s capability to burn low quality, liquid fuels is discussed, and a close look is taken at the effect such fuel has on the life of the unit and the time between service. In order to facilitate power production on the ship, the GT35 has been equipped with a starting motor which during operation is used as a shaft driven generator. The generator is driven by the low pressure rotor. Each generator can produce 500 kW, which means 1000 kW for the ferry. The effect of the arrangement on the rotor system behavior is described. At the time of writing this paper ABB has sold 6 GT35 units for operation in 3 fast ferries. The speed of the ferries varies between 40 knots and 60 knots. At the time of writing this paper, the first of the two HSS 900 ferries for Stena Line, Sweden, has just completed its first set of sea trials.

scholarly journals 1126. Learner Driven Call Center to increase Convalescent Plasma Donation in COVID-19

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S593-S593
Author(s):  
Nancy M Joyner ◽  
Michael Deaney ◽  
Caroline Derrick ◽  
Jeannette Bouchard ◽  
Hannah G Brown ◽  
...  
Keyword(s):  
Call Center ◽  
Closed Loop ◽  
The Novel ◽  
Test Results ◽  
Inclusion Criteria ◽  
Eligibility Criteria ◽  
Successful Model ◽  
Plasma Donation ◽  
Polymerase Chain ◽  
Novel Coronavirus

Abstract Background Convalescent plasma (CP) may be obtained from patients who have recovered from the novel coronavirus disease, COVID-19, caused by the virus SARS-CoV-2. Although not FDA approved, preliminary data suggests patients who receive convalescent plasma from recovered donors may have shortened recovery time and symptom reduction. The purpose of the study is to detail learner recruitment of convalescent plasma donation (CPD) for treating hospitalized COVID-19 patients. Methods Prisma Health Midlands formed a multidisciplinary CP donation team, consisting of seven COVID-19-certified pharmacy learner volunteers, two pharmacists, and two providers. Primary eligibility criteria were SARS-CoV-2 polymerase chain reaction (PCR) positivity at least 28 days prior to donation and asymptomatic for a minimum of 14 days. Donors were excluded based on FDA guidelines for CPD, limiting ineligible contact. Team learners were trained on call techniques and subsequently contacted, educated, and requested candidates donate through this program. Willing donors were then linked to The Blood Connection to circulate CP back into the Prisma Health System, creating a self-sustaining and closed-loop donation cycle. Results In total, 253 recovered adult patients with positive SARS-CoV-2 PCR test results were evaluated. 195 patients met baseline inclusion criteria for contact. This pre-screen reduced call and travel time for ineligible candidates. 108 patients were successfully reached. Of the 108, n=79 (73.14%) accepted referral to The Blood Connection, and n=29 (26.85%) were no longer candidates primarily due to patient communicated new exclusionary factors, such as active COVID-19 symptoms. The program allowed for rapid, internal access to CP for patients hospitalized with COVID-19 at Prisma Health Midlands. Conclusion Interest and awareness in COVID-19 CPD was successfully increased upon direct communication from the team and was felt to represent a personnel intense but successful model for recruiting potential CP donors. This program educated and utilized learners during this pandemic to enhance Prisma Health’s ability to obtain CP for hospitalized patients using a closed system. Disclosures All Authors: No reported disclosures

scholarly journals Operational and Maintenance Experience of an Industrial Type 14-MW Gas Turbine

1977 ◽  
Author(s):  
H. Werner ◽  
S. Ekman ◽  
H. Boltshauser
Keyword(s):  
Gas Turbine ◽  
Development Program ◽  
Jet Engine ◽  
Industrial Gas Turbine ◽  
Engine Development

The GT35, originally planned as a new step in the author’s jet engine development program, is a lightweight industrial gas turbine. This paper describes the operation, maintenance procedures, costs, problems and cures of several plants located in Sweden, Venezuela, Holland, Turkey and Algeria.

A New 1.7MW Industrial Gas Turbine: The Ruston Hurricane

1991 ◽  
Author(s):  
A. T. Sanders ◽  
M. H. Tothill ◽  
G. R. Wood
Keyword(s):  
Gas Turbine ◽  
High Efficiency ◽  
Pressure Ratio ◽  
Axial Flow ◽  
Thermodynamic Efficiency ◽  
The Novel ◽  
Exhaust Temperature ◽  
High Pressure Ratio ◽  
Industrial Gas Turbine ◽  
Novel Design

The paper describes the design of a compact new 1.7MW (2300hp) single shaft industrial gas turbine and package, with high efficiency and exhaust temperature ideal for industrial congeneration applications. These advantages are obtained with a high pressure ratio single stage centrifugal compressor, single high temperature combustor and two-stage axial flow turbine using only one row of cooled blades. The novel design features are described with the associated development testing. A typical installation is also described showing the potential for very high overall thermodynamic efficiency.

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