Study on Temperature Distribution in the Jointing Fittings for Polyethylene Natural Gas Pipes

2015 ◽  
Vol 736 ◽  
pp. 103-109
Author(s):  
Eugen Avrigean ◽  
Laszlo Jozsef Hunyadi

The present paper aims to approach from a theoretical and experimental point of view an important topic in terms ofoperational safety of the polyethylene pipes used in natural gas distribution.

2015 ◽  
Vol 67 (1) ◽  
pp. 67-72
Author(s):  
Eugen Avrigean

Abstract The present paper intends to approach theoretically and experimentally an important topic concerning the operational safety of the polyethylene pipes used in natural gas distribution. We discuss the influence of temperature in the high density polyethylene elbows during welding to the polyethylene pipes.


energyo ◽  
2019 ◽  
Author(s):  
Fatima Zohra Talhi ◽  
Mohamed Tahar Benaniba ◽  
Naima Belhaneche-Bensemra ◽  
Valérie Massardier

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8461
Author(s):  
Marco Dell’Isola ◽  
Giorgio Ficco ◽  
Linda Moretti ◽  
Jacek Jaworski ◽  
Paweł Kułaga ◽  
...  

Hydrogen is increasingly receiving a primary role as an energy vector in ensuring the achievement of the European decarbonization goals by 2050. In fact, Hydrogen could be produced also by electrolysis of water using renewable sources, such as photovoltaic and wind power, being able to perform the energy storage function, as well as through injection into natural gas infrastructures. However, hydrogen injection directly impacts thermodynamic properties of the gas itself, such as density, calorific value, Wobbe index, sound speed, etc. Consequently, this practice leads to changes in metrological behavior, especially in terms of volume and gas quality measurements. In this paper, the authors present an overview on the impact of hydrogen injection in natural gas measurements. In particular, the changes in thermodynamic properties of the gas mixtures with different H2 contents have been evaluated and the effects on the accuracy of volume conversion at standard conditions have been investigated both on the theoretical point of view and experimentally. To this end, the authors present and discuss the effect of H2 injection in gas networks on static ultrasonic domestic gas meters, both from a theoretical and an experimental point of view. Experimental tests demonstrated that ultrasonic gas meters are not significantly affected by H2 injection up to about 10%.


1988 ◽  
Vol 156 (9) ◽  
pp. 117-135 ◽  
Author(s):  
L.P. Gor'kov ◽  
N.B. Kopnin

2016 ◽  
Vol 3 (1) ◽  
pp. 78
Author(s):  
Blerina Muskaj

At the beginning of my paper I will explain the concept of "Geopolitics of Energy", this will be done for a quite simple reason, because I want everyone who can sit to read this article to understand more clearly what is at stake, therefore allow them the comprehension of what is being elaborated bellow at first sight. Geopolitics of energy is a concept that relates to policies choosing exporters to implement on importers, is the policy that has an impact on energy consumption, which includes consumer’s choice in the geopolitical context, taking into account the economy, foreign policy, the safety of energy, environmental consequences and priorities that carries the energy exporter. This concept permits the understanding of how works the politics that undertakes this initiative taking into account natural resources such as: natural gas and oil. Natural gas and oil are two main resources that produce energy but also two main elements on which arises all the topic in the energetics game. For this paper is used qualitative methodology, through which we were able to accomplish this work. I focused on scientific literature, official publications and reports on energy geopolitics. The main aim has been to show how in this decade, energy security is at the center of geopolitical agenda and has become the focus of numerous political debates. Regarding this point of view, Europe is taking the initiative to create a common energy market within the continent by creating projects, in which Albania appears as a new regional energy potential. Russia, which is aiming to play a role in the international arena, is seeking to position itself geopolitically in "its political weapon", hydrocarbon resources, in particular natural gas resources.


Energies ◽  
2017 ◽  
Vol 10 (1) ◽  
pp. 124 ◽  
Author(s):  
Xianzheng Zhou ◽  
Chuangxin Guo ◽  
Yifei Wang ◽  
Wanqi Li

Author(s):  
Morgan R. Edwards ◽  
Amanda Giang ◽  
Gregg P. Macey ◽  
Zeyneb Magavi ◽  
Dominic Nicholas ◽  
...  

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