Periodic inspection of the CNG vessels; discussion on defects and challenges

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Eskandarzade Mehdi; Kalaki Ali

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Journal: Non-Destructive Testing Technology Year:2018 | Volume:2 | Issue:2 Page(s): 26-31

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Information Journal Paper

Title

Periodic inspection of the CNG vessels; discussion on defects and challenges

Author(s)

Eskandarzade Mehdi | Kalaki Ali | Issue Writer Certificate

Keywords

CNG vessels

dual fuel cars

visual Inspection

Abstract

Considering day to day increase in cost of gasoline for Iranian customers; the interested for using dual fuel automobiles are increasing. It is common to use steel CNG vessels in Iranian dual fuel cars. Nowadays; there are millions of CNG vessels with more than 10 years of commissioning time in Iran. Recently, periodic inspection regulations are issued by the Iranian Standard bureau. In this regulation, visual Inspections are considered as the main method of inspection, however, for critical vessels it is strongly recommended to use ultrasonic inspections and/or hydraulic tests. Because of the importance of the topic for the safety of the citizens, this paper dedicated to investigate the statistics of the CNG vessels and their most common defects in country. In addition, the periodic inspection procedure of the Iranian regulations is compared with international counterparts. According to the discussion, inspection measures which considered by the Iranian standard bureau are enough and useful for standard CNG vessels; however, more than 25% of all CNG vessels in Iran are manufactured in nonstandard manners and they need more inspection measures. It seems that reducing of the inspection period from 36 months to 24 months will be of value.

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APA: Copy

Eskandarzade, Mehdi, & Kalaki, Ali. (2018). Periodic inspection of the CNG vessels; discussion on defects and challenges. NONDESTRUCTIVE TESTING TECHNOLOGY, 2(2 ), 26-31. SID. https://sid.ir/paper/399111/en

Vancouver: Copy

Eskandarzade Mehdi, Kalaki Ali. Periodic inspection of the CNG vessels; discussion on defects and challenges. NONDESTRUCTIVE TESTING TECHNOLOGY[Internet]. 2018;2(2 ):26-31. Available from: https://sid.ir/paper/399111/en

IEEE: Copy

Mehdi Eskandarzade, and Ali Kalaki, “Periodic inspection of the CNG vessels; discussion on defects and challenges,” NONDESTRUCTIVE TESTING TECHNOLOGY, vol. 2, no. 2 , pp. 26–31, 2018, [Online]. Available: https://sid.ir/paper/399111/en

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