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Enhancing the Performance of Vertical Cryogenic Insulated Cylinders: A Study on Neck Tube Thermal Stress using ANSYS Software

Naveen Tripathi, Shailendra Kumar, Vikash Dwivedi

Abstract


An essential supporting component of cryogenic insulated cylinders is the neck tube. The root of the neck tube, which serves as a crucial support structure between the inner and outer vessels in cryogenic insulated cylinders, turns out to be the weakest link due to a hole in the inner upper end for joining. This paper's major goal is to offer research on thermal stress analysis and the optimal construction of cryogenic cylinders' neck tube support systems under internal pressure, self-weight, lateral inertia load, and temperature difference using ANSYS tools. This research examines a variety of neck tube shapes as well as cryogenic cylinders with various height-diameter (H/D) ratios. By using the finite element analysis approach, a parametric evaluation of the impacts of neck tubes on the maximum stresses in the vessels under various loading circumstances was carried out. Since the stress concentration primarily occurs around where the inner upper heads open, the impact of the reinforcing ring on the stress distribution is also studied. The study's findings will be used as the available information for designing and improving cryogenic cylinder structures.


Keywords


Liquid level, Heat leak, Cryogenic vessels, Finite element method

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References


I. S. Jawahir et al., “CIRP Annals - Manufacturing Technology Cryogenic manufacturing processes,” CIRP Ann. - Manuf. Technol., 2016, doi: 10.1016/j.cirp.2016.06.007.

K. D. Timmerhaus, Cryogenic Process Engineering. Boulder, USA: Springer New York, NY, 1989.

G. Hollinger, “Three-Dimensional Stress Criteria — Summary of the PVRC Project,” J. Press. Vessel Technol., vol. 122, no. February 2000, pp. 105–109, 2016, doi: http://pressurevesseltech.asmedigitalcollection.asme.org/ on 01/29/2016 Terms.

V. der F. M. Der, “Distributed Cooling in Cryogenics with Miniaturized Fluid Circuits,” Technical University of Dresden, 2004.

V. G. Devi, S. R. Kumar, D. Yadav, P. Lathiya, and A. Sircar, “Design and thermal fluid structure interaction analysis of liquid nitrogen cryostat of cryogenic molecular sieve bed adsorber for hydrogen isotopes removal system,” Fusion Eng. Des., vol. 151, no. 2, pp. 1–8, 2020.

Y. Li, R. Wang, and C. Wang, “Study on effect of liquid level on the heat leak into vertical cryogenic vessels,” Cryogenics (Guildf)., vol. 50, no. 6–7, pp. 367–372, 2010, doi: 10.1016/j.cryogenics.2009.12.009.

M. Strandberg, “Analysis, Simulation and Cryogenic/Mechanical Design for ALMA Band 5 Cartridge,” CHALMERS UNIVERSITY OF TECHNOLOGY Göteborg, Sweden, 2011.

Y. Li, C. Wang, and R. Wang, “Numerical simulation and experimental analysis of heat transfer through the neck tube into vertical cryogenic insulated cylinders,” Heat Mass Transf., vol. 47, no. 1, pp. 813–820, 2011, doi: 10.1007/s00231-011-0765-0.

Y. Fu and A. Yang, “Numerical analysis of thermal insulation performance of horizontal LNG cylinder,” in IOP Conference Series: Materials Science and Engineering PAPER, 2018, pp. 1–6, doi: 10.1088/1757-899X/452/2/022084.

T. DI LAUREA, “Quench propagation in High Temperature Superconducting materials integrated in high current leads,” 2001.

Y. Li, C. Wang, and R. Wang, “The thermal stress analysis and structure optimum of neck tube with vertical cryogenic insulated cylinders based on ANSYS,” Nucl. Eng. Des., vol. 252, pp. 144–152, 2012, doi: 10.1016/j.nucengdes.2012.05.042.

O. Khemis, M. Boumaza, M. A. Ali, and M. X. Francois, “Experimental analysis of heat transfers in a cryogenic tank without lateral insulation,” Appl. Therm. Eng., vol. 23, pp. 2107–2117, 2003, doi: 10.1016/S1359-4311(03)00164-9.

J. P. Wu, Y. H. Zhang, and H. L. Wang, “Numerical study on tangential velocity indicator of free vortex in the cyclone,” Sep. Purif. Technol., vol. 132, pp. 541–551, 2014, doi: 10.1016/j.seppur.2014.06.007.

P. K. Mallick, Fiber-reinforced Composites: Materials, Manufacturing, and Design, Third Edit. Taylor & Francis Group, 2007.

A. Quesnel-Barbet et al., “PoleSat_2018: an optimized, automated, geomatics IT tool based on a gravitational model: strategic decision support in hospital catchment area planning,” SN Appl. Sci., vol. 2, no. 5, 2020, doi: 10.1007/s42452-020-2735-y.

A. Hofmann, “The thermal conductivity of cryogenic insulation materials and its temperature dependence,” Cryogenics (Guildf)., vol. 46, pp. 815–824, 2006, doi: 10.1016/j.cryogenics.2006.08.001.

D. J. Sharm, H. L. Stark, and D. W. Kelly, “Quenching residual stresses in 7060 aluminium alloy gas cylinder necks,” Int. J. Press. Vessel. Pip., vol. 72, no. 4, pp. 193–198, 1997.

S. Schindler and J. L. Zeman, “Stress concentration factors of nozzle – sphere connections,” Int. J. Press. Vessel. Pip., vol. 80, no. 6, pp. 87–95, 2003, doi: 10.1016/S0308-0161(03)00026-7.

M. A. S. Y. J. CHAO, “Radial flexibility factors of nozzles in pressure vessel heads,” J. Strain Anal. Eng. Des., vol. 20, no. 2, pp. 1–6, 1985, doi: https://doi.org/10.1243/03093247V202087.




DOI: https://doi.org/10.37628/ijsmfe.v9i1.1573

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