Comparative study of tube to tubesheet welding qualification on heat exchanger
Abstract Plant turnarounds are one of the most critical events in the Saudi Arabian oil and gas industries. Shutdowns have the potential to affect the plant’s cash flow and objectives either in a constructive nor a bad way. A heat exchanger is an essential equipment for some procedures in the oil an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-06-01
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| Series: | Journal of Engineering and Applied Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s44147-022-00099-z |
| _version_ | 1811328750137114624 |
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| author | Mohamed Fayas Saffiudeen Fasil T. Mohammed Abdullah Syed |
| author_facet | Mohamed Fayas Saffiudeen Fasil T. Mohammed Abdullah Syed |
| author_sort | Mohamed Fayas Saffiudeen |
| collection | DOAJ |
| description | Abstract Plant turnarounds are one of the most critical events in the Saudi Arabian oil and gas industries. Shutdowns have the potential to affect the plant’s cash flow and objectives either in a constructive nor a bad way. A heat exchanger is an essential equipment for some procedures in the oil and gas refineries plant and it will decide the plant’s shutdown span. In a heat exchanger, welded tube to tubesheet joint is a basic factor which requires a different qualification. In this paper, tube to tubesheet welding for various material combination (carbon steel-stainless steel, stainless steel-stainless steel, and alloy steel-alloy steel) is qualified. According to American Society of Mechanical Engineers (ASME) Section IX QW-193 mock up qualification is done and QW-193.1 to QW-193.1.3 (visual test, liquid penetrant test and macro etching test) likewise is followed and lab tested for acceptance criteria. Ten model welds are needed to determine the eligibility of each procedure according to the required standard and totally 60 models (every 20) tried to rate this 3 procedure qualification record and welder qualification test record (PQR / WQTR). Qualification of the sheet from tube to tube follows all needed variables referred to in QW-288. This study proposes the improved minimum and maximum value for current (I), voltage (V), and travel speed (mm/min) required for above said materials qualifications. Further discourse is made over the heat input (KJ/mm), after effects of minimum leak path all things considered (Macro etching test), and classifies the range qualified against utilized base material for better understanding according to QW-288 essential variables. |
| first_indexed | 2024-04-13T15:31:37Z |
| format | Article |
| id | doaj.art-efa919604ed94463a48b7c236e298c74 |
| institution | Directory Open Access Journal |
| issn | 1110-1903 2536-9512 |
| language | English |
| last_indexed | 2024-04-13T15:31:37Z |
| publishDate | 2022-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Engineering and Applied Science |
| spelling | doaj.art-efa919604ed94463a48b7c236e298c742022-12-22T02:41:23ZengSpringerOpenJournal of Engineering and Applied Science1110-19032536-95122022-06-0169111410.1186/s44147-022-00099-zComparative study of tube to tubesheet welding qualification on heat exchangerMohamed Fayas Saffiudeen0Fasil T. Mohammed1Abdullah Syed2Department of Mechanical Skills, Jubail technical Institute, Royal Commission JubailDepartment of Mechanical Skills, Jubail technical Institute, Royal Commission JubailDepartment of Mechanical Skills, Jubail technical Institute, Royal Commission JubailAbstract Plant turnarounds are one of the most critical events in the Saudi Arabian oil and gas industries. Shutdowns have the potential to affect the plant’s cash flow and objectives either in a constructive nor a bad way. A heat exchanger is an essential equipment for some procedures in the oil and gas refineries plant and it will decide the plant’s shutdown span. In a heat exchanger, welded tube to tubesheet joint is a basic factor which requires a different qualification. In this paper, tube to tubesheet welding for various material combination (carbon steel-stainless steel, stainless steel-stainless steel, and alloy steel-alloy steel) is qualified. According to American Society of Mechanical Engineers (ASME) Section IX QW-193 mock up qualification is done and QW-193.1 to QW-193.1.3 (visual test, liquid penetrant test and macro etching test) likewise is followed and lab tested for acceptance criteria. Ten model welds are needed to determine the eligibility of each procedure according to the required standard and totally 60 models (every 20) tried to rate this 3 procedure qualification record and welder qualification test record (PQR / WQTR). Qualification of the sheet from tube to tube follows all needed variables referred to in QW-288. This study proposes the improved minimum and maximum value for current (I), voltage (V), and travel speed (mm/min) required for above said materials qualifications. Further discourse is made over the heat input (KJ/mm), after effects of minimum leak path all things considered (Macro etching test), and classifies the range qualified against utilized base material for better understanding according to QW-288 essential variables.https://doi.org/10.1186/s44147-022-00099-zHeat exchangerWelded tube-tubesheet jointsCarbon steelStainless steelAlloy steelVisual test |
| spellingShingle | Mohamed Fayas Saffiudeen Fasil T. Mohammed Abdullah Syed Comparative study of tube to tubesheet welding qualification on heat exchanger Journal of Engineering and Applied Science Heat exchanger Welded tube-tubesheet joints Carbon steel Stainless steel Alloy steel Visual test |
| title | Comparative study of tube to tubesheet welding qualification on heat exchanger |
| title_full | Comparative study of tube to tubesheet welding qualification on heat exchanger |
| title_fullStr | Comparative study of tube to tubesheet welding qualification on heat exchanger |
| title_full_unstemmed | Comparative study of tube to tubesheet welding qualification on heat exchanger |
| title_short | Comparative study of tube to tubesheet welding qualification on heat exchanger |
| title_sort | comparative study of tube to tubesheet welding qualification on heat exchanger |
| topic | Heat exchanger Welded tube-tubesheet joints Carbon steel Stainless steel Alloy steel Visual test |
| url | https://doi.org/10.1186/s44147-022-00099-z |
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