Possible Use of New Materials for High Pressure Linepipe Construction: An Opening on X100 Grade Steel

Author(s):  
L. Barsanti ◽  
G. Mannucci ◽  
H. G. Hillenbrand ◽  
G. Demofonti ◽  
D. Harris

The increasing needs of natural gas, foreseen for the next years, makes more and more important the type of transportation chosen, both from strategic and economic point of view. The most important gas markets will be Northern America, Europe, Asia and Russia but the demand shall be fulfilled also by emerging producers as Kazakhstan, Turkmenistan and Eastern Siberia that at the moment are developing their resources in order to be competitive on Gas market. In this way producers and customers will be placed at greater and greater distances implying realization of complex gas transportation pipeline network, when use of LNG tankers is impossible or uneconomic. On the base of these considerations in 1997 began a feasibility study on X100 steel, given that, comparing different design approaches, it has been observed that consistent savings could be obtained by means of using high grade steel and high pressure linepipes. In this multi-sponsored project (Eni group, European Community of steel and Carbon, CSM, Corus and Europipe) CSM and Corus group were involved in the laboratory and full-scale pipes testing, Europipe was the pipes producer and Snam Rete Gas was involved in field weldability and technical coordination. No technical breakthrough, but only improvements in the existing expertise were involved in the X100 production; consequently, the production window is very narrow. However optimized steelmaking practices and processes enabled the material to reach the desired properties: strength, toughness and weldability. This paper is intended to present the general results arising from this project, in terms of steel properties (chemical composition, mechanical properties), ductile and brittle fracture resistance (results of full scale burst tests, West Jefferson tests) and field weldability, but above all the know-how stored till now on high grade steel and its possible use from a Gas company and a Pipe maker point of view.

Author(s):  
Luca Bacchi ◽  
Fabio Brugnetti ◽  
Michele Castano ◽  
Fabio Zanardo

Eni group is working on a gas transportation project aimed to develop and verify the technology for a “LD-HC-HP-HG” (Long Distance–High Capacity–High Pressure–High Grade) gas pipeline named TAP (Trasporto Alta Pressione). Interest in high pressure and high grade pipe steels is due to the increasing necessity of economic gas transportation on long distances between upstream and downstream in an international context. In the past Eni group has already studied long distance pipeline materials from the economic and pre-feasibility point of view. Now, with TAP project, Eni is going to do an “in field experience” with high pressure and high grade steels to concur and to promote the “gas to market” with the “pipeline” option. Snam Rete Gas competences in the project are related to: • partial contribution to the technical characterization of field welding joints; • analysis of solutions for coating and cathodic protection especially dedicated for long distance pipelines. The building of a pilot pipeline in X100 grade steel is an opportunity to test new technologies and new instrumentations to economically prevent corrosion with coating and cathodic protection in long distance pipelines where there could be logistic problems for the systems inspection and maintenance due also to the extreme environmental conditions. Design of the system solutions according to a “life cycle costing” approach and analysis of the experimental results of the pilot pipeline in X100 grade steel will be both included in the project. Aim of this paper is to suggest an experimental approach to coating and cathodic protection design on long distance gas pipeline in order to minimize inspection and maintenance costs, very relevant for such a type of application.


2009 ◽  
Vol 48 ◽  
pp. 14-29
Author(s):  
Tomas Rytel

Šio straipsnio tikslas – atskleisti informacijos ir komunikacijos elementų svarbą šiuolaikinėje marketingo vadyboje, informaciją suvokiant kaip esminį mainų atributą, kuris skatina sandoriais (angl. transaction) grindžiamus mainus keisti santykių (angl. relationship) mainais. Šis aprašomojo pobūdžio tyrimas yra atliktas pasitelkiant mokslinės santykių marketingo literatūros šaltinių apžvalgos ir hipotetinio pobūdžio interpretacijomis grindžiamus mokslinės kūrybos metodus. Straipsnyje siekiama pagrįsti hipotezę, jog santykių mainai tarp įmonės ir vartotojo pasireiškia kaip informacijos ir komunikacijos procesų nulemta veikla, kuria mažinamas pažinimo disonansas, užtikrinamas saugumo jausmas, emocinis pasitenkinimas informacijos turiniu ir kiekiu. Santykių mainai nagrinėjami informacijos ir komunikacijos aspektais, siekiant atskleisti jų svarbą marketingo vadyboje. Informacija interpretuojama kaip esminė šiuolaikinės marketingo vadybos kategorija, nuo kurios valdymo priklauso būsima mainų tarp įmonės ir vartotojo forma bei mainų trukmė. Kintančio sociumo kontekste marketingas gali būti apibrėžiamas kaip informacijos procesų nulemta veikla, kuri leidžia didinti žinojimą apie rinką ir joje veikiančius dalyvius, šias žinias naudojant vertybiniams vartotojų bruožams nustatyti ir jomis remiantis kurti vertę rinkoje.Reikšminiai žodžiai: informacijos valdymas, komunikacija, dialogas, santykiai, socialinis emocinis ryšys.Informational aspects of relationship exchange in marketingTomas Rytel SummaryThe article aims at rationalizing a hypothesis that exchange of relations between a company and a user occurs as an activity conditioned by informational and communicational processes, which reduces cognitive dissonance and guarantees the feeling of safety and emotional satisfaction in terms of the content and amount of information. Information is interpreted as a basic category of modern marketing management, which influences the future swap between a company and a user as well as the duration of exchanges. Needs of current users may be approached as natural demand of a person for information, materialization of which in terms of content and amount enables to reduce cognitive dissonance in market exchanges. By applying postmodernistic discourse in the context of marketing management, the basic factor generating market-based exclusiveness and competitiveness (or an element of the value-establishing chain) is the know-how, and the main resource is information; thus, from the economic point of view, success or failure of any kind of business depends not on its production efficiency, but on the ability to involve the creative potential and know-how. An increasing need for brands and symbols in marketing prompts to satisfy individual expectations of users in terms of the content and amount of information. Users in today’s market are being governed by a great number of rapidly changing symbols which are being created in terms of the content and amount of information.The performed research has confirmed that relationship exchange is being generated as an activity determined by information and communication, which may change even the very conception of marketing management. The scientific problem discussed in the paper effectuates the following conclusions:1. Relations are being interpreted as an activity determined by verbal and non-verbal communication, which stimulate information spread, en courage a user to trust a company, minimize the search of alternatives, and increase loyalty towards a company, its products / services or brand name.2. Relationship exchanges appeal to the maximally individual relationship between a user and a company, which may occur only in the presence of the feeling of reliability and obligation, which is being generated as permanent phenomena of information exchange. These facts act as the basis for interpreting information and communication as a significant category of exchanges, which under participation in the process of exchange is likely to reduce formal separation and to increase the interdependence in terms of fellow-feeling.3. Relations are being generated on the emotional basis which is established according to the social-economic features of exchange. The mentioned features of exchange occur when swapping not material objects, but those involving the informational features.4. Bilateral communication is being developed, which discloses exchange as the process of information and know-how exchange capable of turning the interrelation between a company and a user into a relationship.5. Information and know-how turn into commodity which is a value for a company and a user. Information and know-how in the modern market ensure an organic link between a company and a user and serve for the development of relations, for exchanges based on relationship, reducing formal divides, determining a communication.Key words: information management, communication, dialogue, relationship.


2007 ◽  
Vol 25 (2) ◽  
pp. 104-116
Author(s):  
James C. Van Hook

Economics and economic history have a fundamental role to play in our understanding of Cold War Germany. Yet, it is still difficult to establish concrete links between economic phenomena and the most important questions facing post 1945 historians. Obviously, one may evaluate West Germany's “economic miracle,” the success of western European integration, or the end of communism in 1989 from a purely economic point of view. To achieve a deeper understanding of Cold War Germany, however, one must evaluate whether the social market economy represented an adequate response to Nazism, if memory and perspective provided the decisive impulse for European integration, or if the Cold War ended in Europe because of changes in western nuclear strategy. Economic history operates in relation to politics, culture, and historical memory. The parameters for economic action are often as determined by the given political culture of the moment, as they are by the feasibility of alternative economic philosophies.


2008 ◽  
Vol 1148 ◽  
Author(s):  
Hubert Huppertz

AbstractAt the moment, over 1100 borate crystal structures are listed in the Inorganic Crystal Structure Database ICSD. High-pressure investigations in this field are rare and were mainly performed from a geological point of view. Starting in 1999, systematic high-pressure / high-temperature experiments up to maximum pressures of 16 GPa have been carried out, using the multianvil technique to explore the synthetic possibilities in the field of borates under extreme conditions. This approach led to a variety of interesting new materials, which are unattainable via conventional solid state syntheses. The communication will give a short survey of the most important results in the last years.


2019 ◽  
Vol 140 ◽  
pp. 07005 ◽  
Author(s):  
A.A. Aksenov ◽  
Yu.V. Kozhukhov ◽  
A.A. Lebedev ◽  
A. Yu. Petrov ◽  
Minh Hai Nguyen

At the moment there is no effective way to clean the flow of the turbine unit, which is justified from an economic point of view. It is important to understand how deposits affect compressor performance and the need to clean out contaminants. In the available literature, such studies are not described. The computational model of a stage domain for the study includes the following elements: inlet pipe, impeller, bladeless diffuser, swivel elbow, backward guide apparatus, outlet pipe. For calculations, the computational fluid dynamics methods in the Ansys software package were used. A numerical experiment was carried out in six mass flow rate variants, two impeller revolutions variants, and three different sediment thicknesses in the flow part variants. Based on the numerical experiment results, the calculated machine operating modes characteristics are constructed. The analysis revealed that the studied deposits cause a drop in the stage characteristics by 1.5-2%. Losses in the stage increase proportionately to the thickness of deposits in the compressor flow part.


Chelovek RU ◽  
2020 ◽  
pp. 18-53
Author(s):  
Sergei Avanesov ◽  

Abstract. The article analyzes the autobiography of the famous Russian philosopher, theologian and scientist Pavel Florensky, as well as those of his texts that retain traces of memories. According to Florensky, the personal biography is based on family history and continues in children. He addresses his own biography to his children. Memories based on diary entries are designed as a memory diary, that is, as material for future memories. The past becomes actual in autobiography, turns into a kind of present. The past, from the point of view of its realization in the present, gains meaning and significance. The au-thor is active in relation to his own past, transforming it from a collection of disparate facts into a se-quence of events. A person can only see the true meaning of such events from a great distance. Therefore, the philosopher remembers not so much the circumstances of his life as the inner impressions of the en-counter with reality. The most powerful personality-forming experiences are associated with childhood. Even the moment of birth can decisively affect the character of a person and the range of his interests. The foundations of a person's worldview are laid precisely in childhood. Florensky not only writes mem-oirs about himself, but also tries to analyze the problems of time and memory. A person is immersed in time, but he is able to move into the past through memory and into the future through faith. An autobi-ography can never be written to the end because its author lives on. However, reaching the depths of life, he is able to build his path in such a way that at the end of this path he will unite with the fullness of time, with eternity.


Author(s):  
R. R. Palmer

In 1792, the French Revolution became a thing in itself, an uncontrollable force that might eventually spend itself but which no one could direct or guide. The governments set up in Paris in the following years all faced the problem of holding together against forces more revolutionary than themselves. This chapter distinguishes two such forces for analytical purposes. There was a popular upheaval, an upsurge from below, sans-culottisme, which occurred only in France. Second, there was the “international” revolutionary agitation, which was not international in any strict sense, but only concurrent within the boundaries of various states as then organized. From the French point of view these were the “foreign” revolutionaries or sympathizers. The most radical of the “foreign” revolutionaries were seldom more than advanced political democrats. Repeatedly, however, from 1792 to 1799, these two forces tended to converge into one force in opposition to the French government of the moment.


Upravlenie ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 116-122
Author(s):  
Sadeghi Elham Mir Mohammad ◽  
Ahmad Vakhshitekh

The article considers and analyses the basic principles and directions of Russian foreign policy activities during the presidency of V.V. Putin from the moment of his assumption of the post of head of state to the current presidential term. The authors determine the basic principles of Russia's foreign policy in the specified period and make the assessment to them. The study uses materials from publications of both Russian and foreign authors, experts in the field of political science, history and international relations, as well as documents regulating the foreign policy activities of the highest state authorities. The paper considers the process of forming the priorities of Russia's foreign policy both from the point of view of accumulated historical experience and continuity of the internal order, and in parallel with the processes of transformation of the entire system of international relations and the world order. The article notes the multi-vector nature of Russia's foreign policy strategy aimed at developing multilateral interstate relations, achieving peace and security in the interstate arena, actively countering modern challenges and threats to interstate security, as well as the formation of a multipolar world. The authors conclude that at present, Russia's foreign policy activity is aimed at strengthening Russia's prestige, supporting economic growth and competitiveness, ensuring security and implementing national interests. Internal political reforms contribute to strengthening the political power of the President of the Russian Federation and increasing the efficiency of foreign policy decision-making.


2019 ◽  
Vol 85 (1(I)) ◽  
pp. 49-56 ◽  
Author(s):  
A. M. Lepikhin ◽  
V. V. Moskvichev ◽  
A. E. Burov ◽  
E. V. Aniskovich ◽  
A. P. Cherniaev ◽  
...  

The results of unique experimental studies of the strength and service life of a metal-composite high-pressure tank are presented. The goal of the study is to analyze the fracture mechanisms and evaluate the strength characteristics of the structure. The methodology included tests of full-scale samples of the tank for durability under short-term static, long-term static and cyclic loading with internal pneumatic pressure. Generalized test results and data of visual measurements, instrumental and acoustic-emission control of deformation processes, accumulation of damages and destruction of full-scale tank samples are presented. Analysis of the strength and stiffness of the structure exposed to internal pneumatic pressure is presented. The types of limiting states of the tanks have been established experimentally. Change in the stress-strain state of the tank under cyclic and prolonged static loading is considered. Specific features of the mechanisms of destruction of a metal-composite tank are determined taking into account the role of strain of the metal liner. The calculated and experimental estimates of the energy potential of destruction and the size of the area affected upon destruction of the tank are presented. Analysis of test results showed that the tank has high strength and resource characteristics that meet the requirements of the design documentation. The results of the experiments are in good agreement with the results of numerical calculations and analysis of the stress-strain state and mechanisms of destruction of the metal-composite tank.


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