• Kamal Dhandha
• Bharat Joshi
• Kamlesh Mistry
• Manish Mishra
• Bhavesh Limbada

Liquefied gases are used in a wide range of applications in many industrial sectors. The transportation of gases across the world is done in liquid state. Cryogenic liquids exist at extremely low temperatures (≤196 °C in many cases) which is why specialized equipment is required for their transportation and storage. It’s vital for these tanks to be thermally insulated so as to maintain the low temperatures. The cryogenic stationary tanks are designed for long term storage of cryogenic liquefied gases under pressure. The maximum working pressure of cryogenic liquefied gas storage tanks ranges from 2 to 37 bar, depending on where the tank is to be used. The cryogenic storage tank can replace the reverse transportation of the gas cylinder, thereby saving a large amount of manpower and material resources to a large extent. Manufacturing of cryogenic tanks requires special technical and sophisticated fabrication techniques. A non-destructive technique would be a significant aid in acceptance testing of new and refurbished tanks, saving significant time and money. Many welding processes are performed to construct cryogenic system. Leak-tightness for the cryogenic system is required at low temperature environment. Helium leak detection techniques are commonly used to find leak for the cryogenic system. The helium leak detection techniques for sniffing and pressurizing techniques are introduced. High vacuum is also necessary to use helium leak detector. Helium leak test is the best method for risk management in cryogenic system. Leak detection guarantees at test temperature. Leak-tight can be guaranteed at room temperature if leak is tested at room temperature. In Inox India Limited, Kandla Helium leak detector employed to ensure leak tightness of the weld joints.

Cryogenics, Leak testing, MSLT, Detection, Detector probe

"Helium Leak Testing Requirements in Fabrication of Cryogenic Storage Tanks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 12, page no.f464-f476, December-2024, Available :http://www.jetir.org/papers/JETIR2412554.pdf

"Helium Leak Testing Requirements in Fabrication of Cryogenic Storage Tanks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 12, page no. ppf464-f476, December-2024, Available at : http://www.jetir.org/papers/JETIR2412554.pdf