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1394 15 3 239 - 242

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Please cite this article using:

A. Ebrahimpour, N. Solhjoei,E. Mohseni Homagerani, M. Rasooly, Arash Karimipour, Experimental Analysis and Simulation of Temperature Contour Generated in the Welding Process of Electrofusion Tapping Saddle Polyethylene Gas Pipes and Relevant Temperature Estimation for Fitting, Modares Mechanical Engineering Vol. 15, No. 3, pp. 239-242, 2015 (In Persian)

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* 75736 - 81739 [email protected]

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1393 1393 15 : 15 : 1393 .

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ABAQUS

Experimental Analysis and Simulation of Temperature Contour Generated in the Welding Process of Electrofusion Tapping Saddle Polyethylene Gas Pipes and Relevant Temperature Estimation for Fitting

Ali Ebrahimpour

1

Nosratolah Solhjoei

1*

, Ebrahim Mohseni Homagerani

2

Meysam Rasooly

2

Arash Karimipour

1- Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran.

2- Manager Inspection Office, Gas Department, Isfahan, Iran P.O.B. 81739-75736 Isfahan, Iran, [email protected]

A

RTICLE

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NFORMATION

A

BSTRACT

Original Research Paper Received 28 December 2014 Accepted January 2015 Available Online 04 February 2015

Due to the increasing demand for using polyethylene pipes in gas distribution networks and regarding the technical specifications of transmission and suitable service condition as well as ease of implementation and installation, these materials are considered as ideal substitutes for metal pipes. Regarding the safety and economic aspects in PE (polyethylene) pipe networks before and during the operations, technical inspection is extremely necessary. Examinations have significant role in the safety and proper function of gas distribution PE pipes tests because of the damage of the products, and the excessive costs and time are usually not affordable.

Consequently, the mentioned tests are nowadays being replaced by non-destructive types and admissibility of various industries’ gas companies in these methods is increasing. Electrofusion is proper and fundamental technique for connecting PE pipes. In this research, the mechanism of electrofusion tapping saddle polyethylene welding has been thoroughly studied and simulated using ABAQUS software. Thermal equation of electrofusion is investigated and the results of simulation as compared with experimental results have been evaluated based on which the best qualified methods for connection have been determined and presented.

Keywords:

Polyethylene Gas distribution PE pipe Saddle Polyethylene Electrofusion welding Hot tensile test

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[1] Polyethylene Pipes, Introduction Grade PE100 or HM CRP 100 Jam Petrochemical Company, Accessed February 2013;

http://www.jpcomplex.ir. (In Persian)

[2] Institute of Polymer Science and Technology Investigate and Provide Solution for Non-destructive Testing of Polyethylene Welding Gas Company of West Azarbaijan, Research Project, Fall 1383 (In Persian) [3] J. Bowman Review of the Electro Fusion Joining Process for

Polyethylene Pipe Systems, Polym.Eng.Sci, pp. 674-691, 1997.

[4] Z. Chebbo, M. Vincent, A. Boujlal, D. Gueugnaut, Y. Tillier Numerical and Experimental Study of the Electrofusion Welding Process of Polyethylene Pipes, France 2014.

[5] O. Hehn, Analyse Exp_erimentale et simulationthermom_ecanique du soudage bout _a bout de tubes de PE PhDThesis, Ecole des Mines de Paris, France, 2006.

[6] D. M. Price, M. Jarratt, Thermochim, Acta pp.392–393, pp.231-236, 2002.

[7] M. Nelkon, P. Parker, Advanced Level Physics 3rd ed, Heinman, London, 1988.

[8] M. Fujikakef, M. Fukumurat, K. KitaoS, Analysis of the Electrofusion Joining Process in Polyethylene Gas Piping Systems, Materials and Processing Research Center NKK Corporation, Kokan-cho, Fukuyama, Hiroshima, pp.939, Japan I997.

[9] A. Nakashiba, H. Nishimura, F. Inoue, Fusion Simulation of Electrofusion Polyethylene Joints for Gas Distribution, Osaka Konohanaku, Japan, Polymer Engineering and Science pp.1146-1151, Mid-September, 1993.

[10] T. L. Bergman, A. S. Lavine, F. P. Incropera, D. P. Dewitt,Fundamentals of Heat and Mass Transfer Seventh Edition, pp.981-112, United States of America, 2011.

[11] EN1555-3, Plastics piping systems for the supply of gaseous fuels Polyethylene (PE) Part 3: Fittings December 2008.

[12] Research Team, Gas density polyethylene, polyethylene fittings, electrofusion saddle purchase speci ication, March 1388. (In Persian)

0 50 100 150 200

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(s)

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