scholarly journals Analysis of the influence of the input parameters on the efficiency of the operation of the detander generator unit in the gas network system of the republic of Uzbekistan

2020 ◽  
Vol 216 ◽  
pp. 01130
Author(s):  
Mukolyants Arsen Artyomovich ◽  
Buranov Mardon Davronovich ◽  
Sotnikova Irina Vladimirovna ◽  
Аzimova Munira Muminovna
Keyword(s):  
Natural Gas ◽  
Heat Pump ◽  
Electric Energy ◽  
Gas Pressure ◽  
Energy Resources ◽  
Gas Distribution ◽  
Gas Network ◽  
Secondary Energy ◽  
Turbo Expander ◽  
Secondary Energy Resources

The article is devoted to the generally recognized dilemma of using secondary energy resources in the transportation and distribution of natural gas. At stations where throttle devices are used, excessive gas pressure as the main component of secondary energy resources for technological processes is practically not used. Currently, the replacement of throttle devices with turbo-expander units is determined by energy and economic efficiency. This is due to the fact that the use of excess gas pressure in the turbo expander both at gas distribution stations and at compressor stations of gas pipelines without preheating has not yet been widely used. Expander-generator technology is probably one of the most effective technologies for reducing the consumption of fuel and energy resources. The combination of expander-generator units with heat pump units contributes to the creation of highly efficient power generating complexes that can generate electricity without burning fuel. Expansion of high-pressure natural gas at gas distribution stations is one of the technologies for generating electricity without combustion. To determine the share of electric energy supplied to the electric network based on the expander-generator set in the gas supply system, an analytical dependence was determined. Based on this, an arithmetic model of the installation with single-stage expander-generator units and steam-compression heat pump units is proposed. All data will be presented in detail in this article.

scholarly journals Expander-generator set for utilization of natural gas overpressure energy

2021 ◽  
Vol 289 ◽  
pp. 07034
Author(s):  
A. A. Mukolyants ◽  
I V Sotnikova ◽  
D K Ergasheva ◽  
A. A. Taubaldiev
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Energy Resources ◽  
Gas Temperature ◽  
Gas Distribution ◽  
Secondary Energy ◽  
Potential Source ◽  
Generator Unit ◽  
The Given ◽  
Secondary Energy Resources

The article deals with the problem of using secondary energy resources in the system of transportation and distribution of natural gas, and the possibility of generating electricity without burning fuel by reducing high-pressure natural gas at gas distribution stations. The analysis of the influence of the gas temperature at the entrance to the expander - generator unit, as well as the dependence of the power of the expander - generator unit on the gas temperature and the temperature of the low-potential source is presented. Optimal temperatures are obtained at which the power of the expander-generator unit is maximal for the given gas parameters.

scholarly journals Ways of increasing the energy efficiency of Ukraine's gas transmission system

2018 ◽  
pp. 40-43
Author(s):  
M. B. Kuzyk ◽  
M. O. Karpash
Keyword(s):  
Energy Efficiency ◽  
Natural Gas ◽  
Energy Efficient ◽  
Transmission System ◽  
Energy Resources ◽  
Energy Sources ◽  
Secondary Energy ◽  
Supply Systems ◽  
Secondary Energy Resources ◽  
Gas Supply

The ways of reducing the consumption of energy sources, which increase the efficiency of natural gas use at compressor stations are considered. The energy-efficient technologies in gas supply systems, namely the expander-generator technology, the use of secondary energy resources and “Aquarius” production units are analyzed. The ways of increasing the energy efficiency and rational use of energy resources to control main gas pipelines are defined.

Utilizing the Secondary Energy Resources Available in Coal Mines

Vestnik MEI ◽  
2018 ◽  
Vol 5 (5) ◽  
pp. 24-33
Author(s):  
Aleksey В. Biryukov ◽  
◽  
Dmitriy I. Parkhomenko ◽  
Viktor V. Varakuta ◽  
Pavel А. Gnitiev ◽  
...  
Keyword(s):  
Coal Mines ◽  
Energy Resources ◽  
Secondary Energy ◽  
Secondary Energy Resources

DYNAMICS OF CHANGES IN THE STRUCTURE AND VOLUMES OF FORMATION OF SECONDARY ENERGY RESOURCES IN THE ENERGY OF UKRAINE

2017 ◽  
Author(s):  
Nataliia Fialko ◽  
◽  
Viktor Prokopov ◽  
Nataliia Meranova ◽  
Nina Polozenko ◽  
...  
Keyword(s):  
Energy Sector ◽  
Energy Resources ◽  
Secondary Energy ◽  
Secondary Energy Resources

The paper presents the dynamics of changes in volumes of secondary energy resources (SER) in the energy sector of Ukraine by type of energy. The data on changes in the structure and volumes of secondary energy resources for the last period are presented.

ANALYSIS OF THE USE LEVEL OF SECONDARY ENERGY RESOURCES IN ENERGY SECTOR OF UKRAINE

2017 ◽  
Author(s):  
Nataliia Fialko ◽  
◽  
Viktor Prokopov ◽  
Julii Sherenkovskii ◽  
Artem Yevtushenko ◽  
...  
Keyword(s):  
Energy Sector ◽  
High Potential ◽  
Energy Resources ◽  
Secondary Energy ◽  
Secondary Energy Resources

The features of the use of heat and combustible and heat secondary energy resources (SER) in the energy sector of Ukraine are considered. The data on the use levels of various types of combustible SER, as well as high-potential heat SER by types of utilization plants are presented.

SERVICEABILITY OF NATURAL GAS DISTRIBUTION NETWORKS AFTER EARTHQUAKES

2013 ◽  
Vol 07 (02) ◽  
pp. 1350005 ◽  
Author(s):  
GIAN PAOLO CIMELLARO ◽  
ALESSANDRO DE STEFANO ◽  
OMAR VILLA
Keyword(s):  
Natural Gas ◽  
Distribution Network ◽  
Distribution Networks ◽  
Small Towns ◽  
Disaster Resilience ◽  
Gas Distribution ◽  
Gas Network ◽  
Resilience Index ◽  
Entire Network

The concept of disaster resilience has received considerable attention in recent years and it is increasingly used as an approach for understanding the dynamics of natural disaster systems. No models are available in literature to measure the performance of natural gas network, therefore, in this paper, a new performance index measuring functionality of gas distribution network have been proposed to evaluate the resilience index of the entire network. It can be used for any type of natural or manmade hazard which might lead to the disruption of the system. The gas distribution network of the municipalities of Introdacqua and Sulmona, two small towns in the center of Italy which were affected by 2009 earthquake have been used as case study. Together the pipeline network covers an area of 136 km2, with 3 M/R stations and 16 regulation groups. The software SynerGEE has been used to simulate different scenario events. The numerical results showed that, during emergency, to ensure an acceptable delivery service, it is crucial to guarantee the functionality of the medium pressure gas distribution network. Instead to improve resilience of the entire network the best retrofit strategy is to include emergency shutoff valves along the pipes.

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