scholarly journals Optimization of Performances of Gas Turbines With Centrifugal Compressors for Pipelines

1970 ◽  
Author(s):  
B. S. Revzin
Keyword(s):  
Natural Gas ◽  
Transmission Lines ◽  
Gas Turbines ◽  
Operating Experience ◽  
Gas Pressure ◽  
Centrifugal Compressors ◽  
Natural Gas Transmission ◽  
Gas Pumping ◽  
Pumping Units

Some problems arising from the development of gas pumping units including gas turbines and centrifugal compressors, and particularly problems resulting from the tendency of increasing the pipeline diameters and gas pressure are considered. An operating experience with gas turbines GT-6-750 installed at the natural gas transmission lines is described.

Tubular Regenerator Development and Incorporation Experience

2003 ◽  
Author(s):  
V. Vinogradov ◽  
A. Orberg ◽  
V. Soudarev ◽  
E. Shevchenko
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Natural Gas Pipeline ◽  
High Durability ◽  
Design Service Life ◽  
Negative Effect ◽  
Enhance Efficiency ◽  
Gas Pumping ◽  
Pumping Units ◽  
Plate Type

A review of regenerative gas turbines operating at natural gas pipeline compressor stations across the Russia has been performed. Main performance characteristics, first of all, the power and efficiency of the recuperated gas turbines, many of those have been used up a design service life, can be recovered. Since a large negative effect on the performances is contributed by defective plate-type regenerators, their change seems to be essential when updating gas-pumping units. A tubular regenerator is developed and incorporated into the gas turbines for driving natural gas blowers. The regenerator being installed in place of the plate-type heat exchanger joints a rather simple fabrication process and high durability. Its design features are presented and discussed. Ways to enhance efficiency and decrease the weight of the regenerator are considered.

scholarly journals The Use of Air Turbine Heat Recovery Units for the Mod-ernization of Gas Pumping Units with Gas Turbine Drive

2019 ◽  
pp. 47-58 ◽  
Author(s):  
E.A. Manushin ◽  
A.I. Melnikov
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Heat Recovery ◽  
Significant Proportion ◽  
Combustion Products ◽  
Air Turbine ◽  
Gas Pumping ◽  
Pumping Units ◽  
Regenerative Cycle

One of the urgent tasks of further developing natural gas transportation systems is the need to increase fuel efficiency and to improve environmental performance of the gas turbine units (GTU) that are used to drive superchargers of gas pumping units. Outdated GTUs with low efficiency are being replaced by units of a new generation, including those of the regenerative cycle. However, this requires significant capital expenditures, thus, the possibilities of upgrading the existing units are also being investigated. A significant proportion of the energy generated by the gas combusted in driven GTUs is lost in the form of heat of the exhaust combustion products. These gases have a temperature not lower than 670 K. To utilize the heat of the exhaust combustion products, it is proposed to compliment the main GTU by an air turbine heat recovery unit (ATU) that is simple in design and inexpensive in production. This well-known idea has not yet been realized in practice, thus there are no recommendations on the use of a GTU-ATU as a drive for natural gas superchargers. It is shown that to ensure the possibility of upgrading drive gas turbines at a minimum cost, it is advisable to use an ATU that is kinematically independent of the GTU. The ATU’s power is used to cover the own needs of the compressor station and other purposes. The calculations show that under equal conditions, the combined GTU-ATU is inferior in efficiency to the GTU of the regenerative cycle. However, it provides a much smoother flow of the efficiency parameter depending on the operation mode, which is important for gas pumping units. The potential of using the ATU for the modernization of drive GTUs is estimated. It is noted that in addition to generating additional power, the use of ATU’s can decrease the flue gas temperature and the mass concentration of harmful emissions.

Principles of Imitation for the Loading of the Test Bench for Gas Turbines of Gas Pumping Units, Adequate to Real Conditions

2021 ◽  
Vol 13 (24) ◽  
pp. 13678
Author(s):  
Anton Petrochenkov ◽  
Aleksandr Romodin ◽  
Vladimir Kazantsev ◽  
Aleksey Sal’nikov ◽  
Sergey Bochkarev ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Power Plants ◽  
Simulation Models ◽  
Turbine Rotor ◽  
Operating Conditions ◽  
Automation System ◽  
Model Free ◽  
Gas Pumping ◽  
Pumping Units

The purpose of the study is to analyze the prospects for the development of loading methods for gas turbines as well as to develop a mathematical model that adequately describes the real operating conditions of the loading system at various loads and rotation speeds. A comparative analysis of the most common methods and technical means of loading the shafts of a free turbine at gas turbine plants intended for operation as part of gas pumping units is presented. Based on the results of the analysis, the expediency of using the loading model “Free Power Turbine Rotor–Hydraulic Brake” as a load simulation is shown. Recommendations for the creation of an automation system for the load testing of power plants have been developed. Mathematical models and Hardware-in-the-Loop simulation models of power plants have been developed and tested. One of the most important factors that predetermine the effectiveness of the loading principle is the possibility of software implementation of the loading means using software control systems that provide the specified loading parameters of the gas turbine.

scholarly journals SPE “Mashproekt” Gas Turbine Engines for Gas Pumping Sets

1996 ◽  
Author(s):  
Victor I. Romanov ◽  
Vladimir V. Lupandin ◽  
Anatoliy V. Kovalenko ◽  
Anatoliy I. Shelestyuk
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Test Bed ◽  
Technical Data ◽  
Gas Pumping ◽  
Gas Pumping Unit ◽  
Pumping Units ◽  
Gas Loop

The paper describes the experience gained in designing, developing and operation of gas turbine engines for gas pumping units on the marine gas turbine engine’s base. More than 800 Mashproekt gas turbines of various power output have been in service in gas pumping application since 1980. This paper shows the SPE Mashproekt designing and developing approach for gas turbines to be installed in gas pumping units along with their full-scale testing in the test bed of close gas loop type equipped with gas compressor and gas coolers to simulate operation of the gas pumping unit in the real gas pipeline conditions. The gas turbines for gas pumping application on the 2.5 MW, 6 MW, 10 MW, 16 MW and 25 MW engines base were developed in the period of 1990–1995 for replacement of the existing old gas turbine line-up and installation in the new gas pumping units at the compressor stations in Russia and Ukraine. We are replacing engines with Mashproekt gas turbines at the following gas pumping units: Russian GTN-25, Ukrainian GPA-6.3, GPA-16 and “Coberra-182” (Great Britain) gas pumping units. The comparison of the technical characteristics of these replacements is given in the paper. Technical data on 2.5–25 MW Mashproekt gas turbines for gas pumping units is also presented in this paper.

scholarly journals Experience With Gas Turbines as Prime Movers for Underground Storage of Natural Gas

1971 ◽  
Author(s):  
R. C. Bonner
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Operating Experience ◽  
Economic Planning ◽  
Underground Storage ◽  
Basic Design ◽  
The Past ◽  
Engine Compressor ◽  
Prime Movers ◽  
Aircraft Type

Aircraft-type gas turbines have been used by Consumers Power Co. to provide power for the injection of natural gas into underground storage for the past five years. Special controls, auxiliary and driven equipment are required for this unique application. Operating experience has prompted numerous refinements as well as providing information for maintenance and economic planning. The paper describes the basic design of the engine-compressor units for a remotely controlled, unmanned compressor station as well as highlights from the operating experience with this application.

scholarly journals METHOD FOR APPROXIMATE CALCULATION OF FUNCTIONAL CHARACTERISTICS OF GAS PUMPING UNITS

2021 ◽  
Vol 1 (161) ◽  
pp. 274-279
Author(s):  
B. Ilchenko ◽  
O. Efimov ◽  
A. Romashko ◽  
R. Tkachenko
Keyword(s):  
Gas Turbines ◽  
Approximate Calculation ◽  
Automatic Transmission ◽  
Transmission System ◽  
Actual State ◽  
Functional Characteristics ◽  
Efficient Operation ◽  
Program Complex ◽  
Gas Pumping ◽  
Pumping Units

Is described the method of approximate calculation of the functional characteristics of gas-pumping units and the method of diagnostics of the value of the impairment of the working wheel of the central center of the main gas pipelines is described. It is clear that the deposits are inflated with the impairment of productivity and productivity, and that is efficiency factor of superchargers. The architecture of the program complex is described, as well as the necessary system and technical facilities for carrying out the transfer for fragmentation at the warehouse of the automatic transmission system of the gas transmission system. Experimentally, the accuracy of the value of the radial prominence in the gaps of the working wheel on the buttstock of the "Demag" 655 P2 type was verified. The revision of the growth rates from the results of the straight lines to the open flow part was not shifted 0.15 mm. Descriptions of the method of implementation by a complex of programs, allow to carry out the development of the main indicators of the functional and technical mill of the VCN GPA: vitreous-pressure, forceful, polytropic KKD characteristics. These indicators are used for the purpose of determining the overall performance of the energy efficiency of the robotic skin GPU: the effective effort of the gas turbines, the vitrates of the fired gas from the of the coated gas pump, which is displayed in the real demand. The economics of the robotics of compressor stations, the supply of the pumped gas, the confirmation of the plans for the supply of gas to the residents and the safe functioning of the gas transportation system (GTS) of Ukraine, a significant world of possessing the functional To this, it is of particular importance to build up the development of new methods and to provide diagnostics, to ensure that the actual FCS possesses an assessment. At present, there is evidence of the actual state of possession of a more efficient operation of the plant in the transition from a traditional technical service to a resource-saving one. The obtained results show that the calculation of the actual characteristics of the VCN using the proposed method allows to take into account the influence of seal wear on the actual parameters of the regime over the entire range of workloads of single-stage and multistage superchargers.

Gas Turbine High Temperature Casing Upgrade

2005 ◽  
Author(s):  
Alexei N. Orberg ◽  
Vladimir B. Soudarev
Keyword(s):  
High Temperature ◽  
Natural Gas ◽  
Gas Turbines ◽  
Operation Time ◽  
Insulation Material ◽  
Pumping Stations ◽  
Investigation Methods ◽  
Flow Investigation ◽  
Turbine Casing ◽  
Gas Pumping

Due to enormous material losses in the case of emergency, it is vital to ensure the operation reliability of the natural gas pipeline compressor stations (CS). The risk of breakdown is rather high for gas turbines (GT) with total operation time approaching the design-estimated life and particularly for those in which the actual period of operation exceeds this value. Over 25% of turbine drives working on natural gas transportation net in Russia have exceeded their design life [1]. For instance, around 600 gas turbines of the GTC-10-4 type (10MW power) are still in service despite their 120,000–160,000 hours of operation (more than 1,000 gas turbines GTC-10 type have been made and installed at natural gas pumping stations in the seventies in Russia). These gas turbines contain several critical components. Most of them are related to the high temperature parts, including inner high-temperature turbine casing (ITC). This ITC is a kind of a collector (duct) connecting a combustion chamber outlet and the turbine’s entry. Combined with an insulation layer, it serves as a protective shield for outer (main) turbine casing against the effect of hot gases. Notwithstanding the fact that the GTC-10-4 turbine has a modest inlet gas temperature (TIT∼800°C), there are various problems with the ITC shape and state during the turbine’s operation. The ITC operates under conditions of dramatic temperature changes, pressure drops, extended periods of high temperature. All these factors can cause the ITC shell deformations, which results in poor turbine performances. Regular maintenance inspections including opening a turbine do not permit to establish reasons for dramatic changes in the ITC shape. A detailed numerical analysis has been performed to better understand the ITC dynamics over its service period of operation. Moreover, it should be observed that ITC forms a flow prior to entering a turbine. Then, gas flow is directed to the first stage nozzles of the turbine. Advanced numerical flow investigation methods were applied to improve hot gas distribution in front of the turbine. A considerable decrease in velocity nonuniformity was achieved both radially and circumferentially through the ITC shape optimization. Great need in this component stimulated introduction of a new manufacturing technology aimed at production of new ITCs and replacement of numerous defective ones still used at natural gas pumping stations across Russia. Results of thermo-deformation analysis and numerical flow investigation for various ITC configurations are presented in the paper. It also contains proposals for improving the state of the ITC and outer turbine casing (OTC) in the result of the fixing unit development and applying a new insulation material.

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