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Energies
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Modeling, Simulation and Optimisation in Pipeline Network Analysis with Applications...
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Modeling, Simulation and Optimisation in Pipeline Network Analysis with Applications to Natural Gas and District Heating Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "H1: Petroleum Engineering".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 6577

Special Issue Editors

Prof. Dr. Maciej Chaczykowski

E-Mail Website
Guest Editor
Department of Building Installations, Hydrotechnics and Environmental Engineering, Warsaw University of Technology, 20, Nowowiejska Street, 00-653 Warsaw, Poland
Interests: fluid and thermal energy systems analysis; modeling, simulation, and optimization of pipeline systems
Prof. Dr. Andrzej J. Osiadacz

E-Mail Website
Guest Editor
Department of Building Installations, Hydrotechnics and Environmental Engineering, Warsaw University of Technology, 20, Nowowiejska Street, 00-653 Warsaw, Poland
Interests: hydraulics of fluid networks; optimal control; simulation and optimization of fluid networks; numerical methods
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

Future energy systems based on renewable energy technologies will heavily integrate hydrogen and renewable gases (biomethane and synthetic methane) as well as district heating systems in order to meet the high heat requirements of industrial processes and urban buildings, while ensuring clean air and lower emissions. Hydrogen and renewable gases are flexible energy carriers for fuel, electricity, and heat applications, which can be used across all sectors of the economy, particularly when heat-intensive processes are involved. Simultaneously, it is recognized that flexible energy storage, ideally for long periods of time, even seasonally, is required to realize the potential of renewable energy to reduce carbon emissions. In the context of energy storage, synthetic methane production is unique in being able to link electricity and gas networks, while power-to-heat technologies integrate electricity and district heating networks. Therefore, natural gas and district heating infrastructures have the capacity to transport and store large amounts of renewable energy and represent an underutilized asset for the long-term storage. Consequently, blending hydrogen into natural gas pipeline networks or building/expanding dedicated hydrogen networks could become a widespread, long-term, and integral practice used as a means of balancing renewable energy production, providing long-term storage, decarbonizing sources of heat, and improving security of supply.

This Special Issue comprises papers on optimal planning, design, and operation of fluid flow pipeline systems across different energy sectors. It intends to investigate the latest challenges and opportunities for natural gas and district heating systems in the context of modeling of energy transport and storage processes, providing high system capacity and reliability and helping to mitigate integration costs of variable renewables across different energy sectors.

Prof. Dr. Maciej Chaczykowski
Prof. Dr. Andrzej J. Osiadacz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • pipeline systems modeling and control
  • digitalization of fluid systems
  • energy-efficient pipeline transport
  • large-scale energy storage
  • grid flexibility and storage
  • integrated energy system concept
  • sector coupling and energy reconversion
  • fluid flow assurance and systems reliability
  • integration of renewable energies
  • sustainable energy transport system

Published Papers (4 papers)

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Research

24 pages, 10095 KiB  
Article
Drainage Potential Curves of Single Tapping Point for Bulk Oil–Water Separation in Pipe
by Hamidreza Asaadian, Sigurd Harstad and Milan Stanko
Energies 2022, 15(19), 6911; https://doi.org/10.3390/en15196911 - 21 Sep 2022
Cited by 4 | Viewed by 1337
Abstract
In this study, experimental quantification of drainage potential curves for unspiked and spiked Exxsol D60 was performed and compared against simplified numerical model results. This potential relates to the flow rate of tapped water from the bottom of the pipe to the water [...] Read more.
In this study, experimental quantification of drainage potential curves for unspiked and spiked Exxsol D60 was performed and compared against simplified numerical model results. This potential relates to the flow rate of tapped water from the bottom of the pipe to the water cut of the tapped stream. To mimic the separation characteristics of a real crude-water mixture, Exxsol D60 was spiked with small amounts of crude oil. A pipe separator with two parallel branches and one tapping point was used to measure drainage potential experimentally. There was a slight decrease in separation performance for the spiked Exxsol D60 in general when compared with the unspiked oil’s drainage potential curves. However, for low inlet water cuts, the performance of the former was significantly worse than the latter. There was, in general, a fair agreement between experimental and numerical drainage potential curves. The flow patterns of the oil–water mixture approaching the tapping point are the major determining factors of drainage potential curves. Results of this work could be employed to predict the performance and design of bulk oil–water pipe separators that have one or multiple tapping points. Full article
(This article belongs to the Special Issue Modeling, Simulation and Optimisation in Pipeline Network Analysis with Applications to Natural Gas and District Heating Systems)
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12 pages, 2759 KiB  
Article
Stochastic Simulation of Flow Rate and Power Consumption Considering the Uncertainty of Pipeline Cracking Rate and Time-Dependent Topology of a Natural Gas Transmission Network
by Robertas Alzbutas and Tomas Iešmantas
Energies 2022, 15(13), 4549; https://doi.org/10.3390/en15134549 - 22 Jun 2022
Viewed by 1064
Abstract
Various gas pipeline networks used for the transit of energy sources are some of the most important infrastructures. However, carrying gas from one point to another is not the only concern when planning the construction of a new network or expanding an already [...] Read more.
Various gas pipeline networks used for the transit of energy sources are some of the most important infrastructures. However, carrying gas from one point to another is not the only concern when planning the construction of a new network or expanding an already existing one. The reliability and environmental impact of the system are crucial when evaluating the network and risks posed by potential gas leaks, fires, explosions, etc. Even though everyone admits that reliability is a key aspect of any system, its constraints will still be most likely neglected in the assessment of the pipeline project. How much energy is wasted by pushing an additional amount of gas through the pipeline network, which will eventually gush out of the pipeline because of one crack or another? Moreover, if this additional power or fuel consumption and related environmental impact are significant, how could it be reduced? In this paper, an approach is introduced for the simulation and quantification of how much more power would be required if the pipelines are regarded as unreliable (i.e., by leaking, rupturing, or even exploding). By employing stochastic simulations and time-dependent topology (topology determined by the value of a variable representing time) of the pipeline network as a case study for the selected representative gas transmission network, the amount of additional power consumption in gas compressor stations due to uncertain cracking and the leaking rate was evaluated. Although the analysis of power consumption was performed for a hypothetical network, the estimates of the cracking rates, detection effectiveness, and leaking rates used were as close to the real cases as possible. Full article
(This article belongs to the Special Issue Modeling, Simulation and Optimisation in Pipeline Network Analysis with Applications to Natural Gas and District Heating Systems)
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19 pages, 8285 KiB  
Article
The Study of Soil Temperature Distribution for Very Low-Temperature Geothermal Energy Applications in Selected Locations of Temperate and Subtropical Climate
by Tomasz Janusz Teleszewski, Dorota Anna Krawczyk, Jose María Fernandez-Rodriguez, Angélica Lozano-Lunar and Antonio Rodero
Energies 2022, 15(9), 3345; https://doi.org/10.3390/en15093345 - 4 May 2022
Cited by 1 | Viewed by 1412
Abstract
The publication presents the results of research on soil temperature distribution at a depth of 0.25–3 m in three measurement locations. Two boreholes were located in Białystok in the temperate climatic zone and one measuring well was installed in Belmez in the subtropical [...] Read more.
The publication presents the results of research on soil temperature distribution at a depth of 0.25–3 m in three measurement locations. Two boreholes were located in Białystok in the temperate climatic zone and one measuring well was installed in Belmez in the subtropical climatic zone. Measurements were made in homogeneous soil layers in sand (Białystok) and in clay (Białystok and Belmez). Based on the results of the measurements, a simplified model of temperature distributions as a function of depth and the number of days in a year was developed. The presented model can be used as a boundary condition to determine heat losses of district heating pipes located in the ground and to estimate the thermal efficiency of horizontal heat exchangers in very low-temperature geothermal energy applications. Full article
(This article belongs to the Special Issue Modeling, Simulation and Optimisation in Pipeline Network Analysis with Applications to Natural Gas and District Heating Systems)
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20 pages, 4214 KiB  
Article
Selected Mathematical Models Describing Flow in Gas Pipelines
by Andrzej J. Osiadacz and Marta Gburzyńska
Energies 2022, 15(2), 478; https://doi.org/10.3390/en15020478 - 10 Jan 2022
Cited by 4 | Viewed by 2016
Abstract
The main aim of simulation programs is to study the behavior of gas pipe networks in certain conditions. Solving a specified set of differential equations describing transient (unsteady) flow in a gas pipeline for the adopted parameters of load and supply will help [...] Read more.
The main aim of simulation programs is to study the behavior of gas pipe networks in certain conditions. Solving a specified set of differential equations describing transient (unsteady) flow in a gas pipeline for the adopted parameters of load and supply will help us find out the value of pressure or flow rate at selected points or along selected sections of the network. Transient gas flow may be described by a set of simple or partial differential equations classified as hyperbolic or parabolic. Derivation of the mathematical model of transient gas flow involves certain simplifications, of which one-dimensional flow is most important. It is very important to determine the conditions of pipeline/transmission network operation in which the hyperbolic model and the parabolic model, respectively, should be used. Parabolic models can be solved numerically in a much simpler way and can be used to design simulation programs which allow us to calculate the network of any structure and any number of non-pipe elements. In some conditions, however, they describe the changes occurring in the network less accurately than hyperbolic models do. The need for analysis, control, and optimization of gas flows in high-pressure gas pipelines with complex structure increases significantly. Very often, the time allowed for analysis and making operational decisions is limited. Therefore, efficient models of unsteady gas flows and high-speed algorithms are essential. Full article
(This article belongs to the Special Issue Modeling, Simulation and Optimisation in Pipeline Network Analysis with Applications to Natural Gas and District Heating Systems)
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