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26th National Symposium on Cryogenics and Superconductivity

22-24 February 2017
VECC
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Safety system assessment of cold box for large capacity helium liquefaction system
 
Content: RRACT Indore has already developed a 35 lt/hr indigenous helium liquefier, now a larger capacity (100 lt/hr) helium liquefaction system is under development. A large size vacuum jacket is required to accommodate bigger heat exchangers, expanders and associated systems for capacity augmentation. As flow rate is high, this needs a stringent safety analysis. To ensure the safety and to take care of any accidental condition, two different type of safety valves have been designed. These safety valves have to release all the flow coming through the compressor in case of any accidental scenario. Two different designs also ensure the diversity of the safety system. One of them is plunger type and another is plate type. Plunger type of valve will open at lower pressure rise. This valve will take care of minor leakages. Plate type valve will open at later stage of pressure rise. This will take care of the major leakages. Design of the safety valves takes care both for small leaks and large flow requirement. This will mitigate pressure buildup in all accidental conditions. This paper gives details about different safety parameters and design considerations for a large size cold box of a helium liquefier.
Id: 47
Place: VECC 
1/AF, Bidhan Nagar Kolkata - 700008

Room: Meghnad Saha Auditorium, SINP-VECC Campus
Starting date:
--not yet scheduled--   
Duration: 00'
Primary Authors: Mr. SHUKLA, Ashish Kumar (Raja Ramnna Centre for Advanced technology)
Co-Authors: Mr. PATEL, Hemant Kumar (RRCAT)
Mr. DOOHAN, R.S. (RRCAT)
Mr. KUSH, P.K. (RRCAT)
Presenters: Mr. SHUKLA, Ashish Kumar
 
Included in session: Poster Session 1: Abstract ID 1,2,3,8,9,15,16,21,23,25,27,28,29,30,42,44,46,47,49,50,51,58,61,65,79,81,82,87,96,97,98, 106,126,130,189
Included in track: Cryogenic Systems: Refrigeration / Liquefaction