scholarly journals Development of the system of energy and resource saving during the operation of the gas pumping unit

2021 ◽  
Vol 5 (1(61)) ◽  
pp. 18-24
Author(s):  
Mykhailo Kologrivov ◽  
Vitalii Buzovskyi
Keyword(s):  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Compressor Station ◽  
Fuel Gas ◽  
Turbine Engine ◽  
Process Gas ◽  
Gas System ◽  
Complex Utilization ◽  
Gas Pumping ◽  
Gas Pumping Unit

The object of research is the fuel gas system of a gas turbine engine. The study of the use of secondary energy resources of the gas-pumping unit at the compressor station of the main pipeline has been carried out. The work of a gas turbine engine, including the work of the fuel gas system, is considered. The main drawback of the fuel gas system is revealed – ineffective use of excess gas pressure. An informational analysis of the options that eliminate the identified drawback is carried out. It is shown that in order to eliminate the disadvantage, it is advisable to use a turbo-expander at the compressor station to utilize the excess pressure of the fuel gas. It is also shown that the operation of a fuel gas turboexpander to drive an additional air compressor as part of a gas turbine engine is impractical. An expander-generator set with the generation of additional electricity at the compressor station is recommended for use. Modeling the operation of the utilization system made it possible to recommend constructive proposals for its improvement. A schematic diagram of a system for the complex utilization of excess pressure of fuel gas and heat of combustion products from the operation of a gas turbine engine is proposed. The system of complex utilization includes parts-generator unit, heat exchanger for cooling process gas and heat exchanger for firing gas. Regenerative heating of fuel gas up to 250 °С reduces energy consumption for heating it up to the ignition temperature. A model of a robot installation of the type GPU 16/56-1.44 (Ukraine) is carried out. It is determined that when a component engine of the J-59 (Ukraine) type with a shaft power of 16 MW operates, it is possible to additionally receive 102 kW of electricity and save 64 m3/h of fuel gas. It is revealed that the subcooling of the process gas does not play a significant role in reducing energy consumption during its transportation. It is recommended to use the process gas to heat the cold fuel gas stream downstream of the turboexpander to positive temperatures. The integrated utilization system is not a simple connection of an expander-generator set and two heat exchangers along the flow of the fuel gas. As a result of its operation, a significant reduction in the consumption of fuel gas and electricity is achieved. The disadvantages that hinder the implementation of a comprehensive disposal system are identified. This is the use of equipment for generating electricity at a compressor station. It is uncharacteristic for the operation of the station and requires additional qualifications in service. It is also required that the characteristics of industrial expander-generator sets correspond to the fuel gas consumption of a gas turbine engine.

scholarly journals EVALUATION OF THE PROSPECTS FOR PRELIMINARY COOLING OF NATURAL GAS ON MAIN PIPELINES BEFORE COMPRESSION THROUGH THE DISCHARGE OF EXHAUST HEAT OF GAS-TURBINE UNITS

2019 ◽  
Vol 5 ◽  
pp. 47-55
Author(s):  
Oleksandr Titlov ◽  
Oleg Vasyliv ◽  
Tetiana Sahala ◽  
Nataliia Bilenko
Keyword(s):  
Natural Gas ◽  
Gas Pipelines ◽  
Gas Temperature ◽  
Fuel Gas ◽  
Process Gas ◽  
Exhaust Heat ◽  
Pumping Unit ◽  
Gas Pumping ◽  
Gas Pumping Unit ◽  
Pumping Units

For the transportation of natural gas through pipelines, gas pumping units (GPU) are installed at numerous compressor stations (CS), the energy carrier for which, in most cases, is transported natural gas. 0.5 ... 1.5 % of the volume of transported gas is consumed (burned) by the pumping unit drive. The situation with the replacement of existing equipment with modern equipment is associated with significant investments, on the one hand, and the uncertainty with the transit of Russian natural gas through gas transmission systems of Ukraine in the near future. More promising is the way to increase the efficiency of the GPU cycle through the use of circuits with preliminary cooling of the compressed gas. The aim of this research is studying the prospects for the application of technology for pre-cooling technological natural gas before compression in a gas pumping unit based on heat-using absorption refrigeration machines. To analyze the effect of pre-cooling of technological natural gas on the compressor stations of main gas pipelines, gas pumping units – GTK-10I were selected. The calculation of GPU power consumption and fuel gas consumption at various temperatures of the process gas at the inlet to the supercharger was performed. The calculation of the operating parameters of the gas pumping unit is performed and the energy and financial prospects of the technology for cooling the process gas before compression in the GPU CS are shown. For the current economic situation (July 2019) in the Ukrainian gas market, the daily decrease in operating costs in standard gas pipelines with a decrease in gas temperature before compression in the gas pumping unit by 20 K ranges from 1800 USD to 3360 USD. A scheme of a recycling plant based on absorption water-ammonia refrigeration machine (AWRM) is proposed, which in the range of initial data allows to reduce the temperature of technological natural gas before compression by 11 ... 13 ° C.

THE FLOW CALCULATION OF END PRODUCTS OF FUEL COMBUSTION THROUGH THE AIR-GAS CHANNEL OF GAS TURBINE ENGINE

2017 ◽  
pp. 102-108
Author(s):  
S. I. Perevoshcikov
Keyword(s):  
Gas Turbine ◽  
Flow Rate ◽  
Combustion Products ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
Gas Channel ◽  
Rate Of Combustion ◽  
End Products ◽  
Gas Pumping ◽  
Pumping Units

The article includes relations, allowing to calculate the flow rate of combustion products through the airgas channel of the gas turbine engine (GTE) gas pumping units (GPU). Usina of this dependence allows parametric diagnostics of GTE gas pumping units at a sufficient physical basis and with greater accuracy.

scholarly journals Determination of Fuel Gas Flow Rate in Gas Pumping Unit and Compressor Station

2020 ◽  
Vol 0 (1) ◽  
pp. 10-14
Author(s):  
Yuriy Anatolyevich Oleynik ◽  
Sergey Aekseyevich Saprykin ◽  
Svetlana Naumenko
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Compressor Station ◽  
Gas Flow Rate ◽  
Fuel Gas ◽  
Pumping Unit ◽  
Gas Pumping ◽  
Gas Pumping Unit

Flexible manufacturing in repair of gas turbine engine components

1992 ◽  
Author(s):  
KIRK D ◽  
ANDREW VAVRECK ◽  
ERIC LITTLE ◽  
LESLIE JOHNSON ◽  
BRETT SAYLOR
Keyword(s):  
Gas Turbine ◽  
Flexible Manufacturing ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
Engine Components
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