Scholarlink

<p>This research examines the transient thermal–mechanical performance of a novel steel-polyamide composite support for liquid oxygen (LOX)-filled double-walled cryogenic vessels. LOX is used in a wide range of technical, medical, and defense applications. Strict safety protocols and technical requirements must be implemented to ensure secure storage and transfer of LOX, including proper vessel design, pressure monitoring systems, and thermal insulation controls. For this reason, cryogenic tanks with double walls are used, with an interior temperature of around − 183&#xa0;°C. An internal support system and vacuum insulation system intended to reduce heat loss in the tank are necessary for maintaining these characteristics. Tank operation can result in a variety of complicated mechanical loads, so it is important that the internal supports can handle them. A numerical study utilizing COMSOL Multiphysics is performed to compute the total heat flow, temperature distribution, and displacement magnitude over time. A dynamic force is hypothesized to be applied harmonically to the tank at a precise frequency. The weight of the inner vessel is applied to the ends of the internal supports, and the amplitude of the imposed load is three times greater. The data demonstrate that the improved support structure greatly reduces the amount of heat lost by the cryogenic tank to its surroundings. Additionally, the proposed composite supports provide superior heat transmission properties under static and dynamic loading conditions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Thermo-mechanical simulation of the interior supports made of metal and polyamide for cryogenic vessels

  • 期刊论文

  • 发表日期：

    2025年4月15日

查看全文
  • Mojtaba Ghadimi,
  • Mohammad Mahdi Barzegari,
  • Mohammad Mahdi Mohammadi

摘要

This research examines the transient thermal–mechanical performance of a novel steel-polyamide composite support for liquid oxygen (LOX)-filled double-walled cryogenic vessels. LOX is used in a wide range of technical, medical, and defense applications. Strict safety protocols and technical requirements must be implemented to ensure secure storage and transfer of LOX, including proper vessel design, pressure monitoring systems, and thermal insulation controls. For this reason, cryogenic tanks with double walls are used, with an interior temperature of around − 183 °C. An internal support system and vacuum insulation system intended to reduce heat loss in the tank are necessary for maintaining these characteristics. Tank operation can result in a variety of complicated mechanical loads, so it is important that the internal supports can handle them. A numerical study utilizing COMSOL Multiphysics is performed to compute the total heat flow, temperature distribution, and displacement magnitude over time. A dynamic force is hypothesized to be applied harmonically to the tank at a precise frequency. The weight of the inner vessel is applied to the ends of the internal supports, and the amplitude of the imposed load is three times greater. The data demonstrate that the improved support structure greatly reduces the amount of heat lost by the cryogenic tank to its surroundings. Additionally, the proposed composite supports provide superior heat transmission properties under static and dynamic loading conditions.