scholarly journals Design concept of high-power supercritical CO2 Allam cycle gas turbine flow path

Vestnik IGEU ◽  
2018 ◽  
pp. 5-14
Author(s):  
A.N. Rogalev ◽  
◽  
E.Yu. Grigoryev ◽  
V.O. Kindra ◽  
S.K. Osipov ◽  
...  
Keyword(s):  
Gas Turbine ◽  
High Power ◽  
Supercritical Co2 ◽  
Flow Path ◽  
Design Concept ◽  
Turbine Flow Path

scholarly journals Optimal Design of Gas Turbines Flow Paths Considering Operational Modes

2014 ◽  
Author(s):  
Anatoli Boiko ◽  
Yuri Govorushchenko ◽  
Aleksander Usaty ◽  
Oleksii Rudenko
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Power Efficiency ◽  
Operation Mode ◽  
Flow Path ◽  
Path Optimization ◽  
Flow Paths ◽  
Operating Modes ◽  
A New Technique ◽  
Turbine Flow Path

A new technique for multi-parameter optimization of gas turbines flow paths considering a variable mode for their operation is presented. It allows the estimation of the influence of flow path optimization on performance parameters of gas-turbine units, such as power, efficiency, and fuel consumption. An algorithm for turbine flow path multi-criteria optimization that takes into account the gas-turbine unit operation mode is shown. Approaches to speed up the optimization process are described. Using this technique GT-750-6M low pressure turbine flow path optimization based on real working loads during one year is carried out and the results are analyzed. Due to optimization the unit efficiency was improved at all operating modes. The total fuel economy for considered period makes 50.831 t.

Feasibility Study of an Intercooled-Cycle Marine Gas Turbine

2008 ◽  
Vol 130 (2) ◽  
Author(s):  
Wen Xue-you ◽  
Xiao Dong-ming
Keyword(s):  
Gas Turbine ◽  
Feasibility Study ◽  
High Power ◽  
Power Output ◽  
Flow Path ◽  
Simple Cycle ◽  
Significant Enhancement ◽  
Gas Generator ◽  
Overall Performance

From the perspective of an overall entity we analyzed the performance obtainable from the adoption of an intercooled-cycle gas turbine under different typical cycle parameters of a gas turbine. On this basis, a study was conducted of the conversion of a high-power simple-cycle marine gas turbine (MGT-33) into a type of intercooled-cycle marine gas turbine. The precondition of the conversion is to keep the flow path and the majority of the structure of the original engine gas generator unchanged in order to inherit the reliability of the prototype machine. The results of the study indicate that after the adoption of an intercooled cycle under the precondition of performing minimum structure modifications and maintaining the compactness of the engine as a whole, there is still a significant enhancement of the gas turbine overall performance with its power output and efficiency being increased by about 34% and 4.1%, respectively, demonstrating the merits of the engineering conversion under discussion.

Feasibility Study of an Intercooled-Cycle Marine Gas Turbine

2007 ◽  
Author(s):  
Xue-You Wen ◽  
Dong-Ming Xiao
Keyword(s):  
Gas Turbine ◽  
Feasibility Study ◽  
High Power ◽  
Power Output ◽  
Flow Path ◽  
Simple Cycle ◽  
Significant Enhancement ◽  
Gas Generator ◽  
Overall Performance

From the perspective of an overall entity analyzed was the performance obtainable from the adoption of an intercooled-cycle gas turbine under different typical cycle parameters of a gas turbine. On this basis, a study was conducted of the conversion of a high-power simple-cycle marine gas turbine (MGT-33) into a type of intercooled-cycle marine gas turbine. The precondition of the conversion is to keep the flow path and the majority of the structure of the original engine gas-generator unchanged in order to inherit the reliability of the prototype machine. The results of the study indicate that after the adoption of an intercooled cycle under the precondition of performing minimum structure modifications and maintaining the compactness of the engine as a whole, there is still a significant enhancement of the gas turbine overall performance with its power output and efficiency being increased by about 34% and 4.6% respectively, demonstrating the merits of the engineering conversion under discussion.

A Review of Gas Turbine Flow Path Analysis: From Paper Calculation to Artificial Neural Networks

2002 ◽  
Author(s):  
Magnus Genrup ◽  
Mohsen Assadi ◽  
Tord Torisson
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Path Analysis ◽  
Gas Turbine ◽  
Flow Path ◽  
Third Party ◽  
Spreadsheet Program ◽  
Artificial Neural ◽  
Analysis System ◽  
Turbine Flow Path

Today many methods are available for gas turbine flow path analysis. Some of them are very simple but yet very useful, since they give an indication of the compressor capacity with almost no calculation effort. The state of the art today is the heat and mass balance models (HMB), which are more sophisticated. This paper presents a general overview of these methods, including the most recent trend, Artificial Neural Networks (ANN). In the future, the ANN-based flow path analysis system will probably, to some extent, replace the HMB-based systems, or become a complementary tool for monitoring and performance analysis of power production units. This paper will give a comprehensive explanation of how to build a flow path analysis system in an equation-solving package (e.g. spreadsheet program), by using relationships presented here. This may give a system that is well within the capabilities of most commercially available systems, used and developed by consultant companies (third party companies).

Modularized, Combined LM2500 PE and Plus Package for Power Generation and Mechanical Drive

1997 ◽  
Author(s):  
Knuth Jahr
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
Design Concept ◽  
Auxiliary System ◽  
System Concept

This paper presents the Kværner design concept for an LM2500 Gas Turbine Package, with combined engine interfaces for both the LM2500 PE and the LM2500 Plus. The paper also presents the Kværner Modularized Auxiliary System concept, where the lube oil module and the fuel modules are located in separate compartments integrated in the turbine skid, protected from soak-back heat and blade-out conditions.

Acoustic Characteristics of a Gas Turbine Exhaust Model

1974 ◽  
Vol 96 (3) ◽  
pp. 181-184 ◽  
Author(s):  
J. R. Cummins
Keyword(s):  
Gas Turbine ◽  
Acoustic Radiation ◽  
Flow Path ◽  
Scale Model ◽  
Temperature Ratio ◽  
Acoustic Characteristics ◽  
Gas Turbine Exhaust ◽  
Acoustical Data ◽  
Turbine Exhaust

To investigate the sources of acoustic radiation from a gas turbine exhaust, a one-seventh scale model has been constructed. The model geometrically scales the flow path downstream of the rotating parts including support struts and turning vanes. A discussion and comparison of different kinds of aerodynamic and acoustic scaling techniques are given. The effect of the temperature ratio between model and prototype is found to be an important parameter in comparing acoustical data.

Optimal structure design of supercritical CO2 power cycle for gas turbine waste heat recovery: A superstructure method

2021 ◽  
Vol 198 ◽  
pp. 117515
Author(s):  
Chendi Yang ◽  
Yuanyuan Deng ◽  
Ning Zhang ◽  
Xiaopeng Zhang ◽  
Gaohong He ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Supercritical Co2 ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Structure Design ◽  
Optimal Structure ◽  
Power Cycle

A Comparison Between ORC and Supercritical CO2 Bottoming Cycles For Energy Recovery From Industrial Gas Turbines Exhaust Gas

2021 ◽  
Author(s):  
M. A. Ancona ◽  
M. Bianchi ◽  
L. Branchini ◽  
A. De Pascale ◽  
F. Melino ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Thermal Efficiency ◽  
Gas Turbines ◽  
Supercritical Co2 ◽  
Energy Demand ◽  
Oil And Gas ◽  
Gas Production ◽  
Medium Size ◽  
Oil And Gas Production ◽  
Industrial Gas Turbines

Abstract Gas turbines are often employed in the industrial field, especially for remote generation, typically required by oil and gas production and transport facilities. The huge amount of discharged heat could be profitably recovered in bottoming cycles, producing electric power to help satisfying the onerous on-site energy demand. The present work aims at systematically evaluating thermodynamic performance of ORC and supercritical CO2 energy systems as bottomer cycles of different small/medium size industrial gas turbine models, with different power rating. The Thermoflex software, providing the GT PRO gas turbine library, has been used to model the machines performance. ORC and CO2 systems specifics have been chosen in line with industrial products, experience and technological limits. In the case of pure electric production, the results highlight that the ORC configuration shows the highest plant net electric efficiency. The average increment in the overall net electric efficiency is promising for both the configurations (7 and 11 percentage points, respectively if considering supercritical CO2 or ORC as bottoming solution). Concerning the cogenerative performance, the CO2 system exhibits at the same time higher electric efficiency and thermal efficiency, if compared to ORC system, being equal the installed topper gas turbine model. The ORC scarce performance is due to the high condensing pressure, imposed by the temperature required by the thermal user. CO2 configuration presents instead very good cogenerative performance with thermal efficiency comprehended between 35 % and 46 % and the PES value range between 10 % and 22 %. Finally, analyzing the relationship between capital cost and components size, it is estimated that the ORC configuration could introduce an economical saving with respect to the CO2 configuration.

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