氮在丙烷中的扩散溶解度：在 0.1 兆帕斯卡压力下从 96 K 到 227 K 的测量结果

IF 1.8 3区工程技术 Q3 PHYSICS, APPLIED

Cryogenics Pub Date : 2024-09-07 DOI:10.1016/j.cryogenics.2024.103944

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引用次数: 0

摘要

大规模储能需求的不断增长推动了液态空气储能（LAES）技术的发展。然而，LAES 系统中的液相丙烷冷存储过程遇到了一个重大挑战：氮气保护气体在丙烷中的溶解对运行安全和性能都构成了巨大风险。鉴于缺乏有关恒定大气压力和低温条件下氮气在丙烷中的扩散溶解度的数据，本研究构建了一个测试平台，并在温度为 96-227 K、压力为 0.1 MPa 的范围内进行了实验。在 227 K、176 K、139 K 和 96 K 的摩尔扩散溶解度分别为 0.030 %、0.177 %、0.297 % 和 0.962 %。此外，这项研究还拟合了氮气在丙烷中的扩散溶解度计算公式，适用于 LAES 系统中的丙烷冷藏过程。

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Diffusive solubility of nitrogen in Propane: Measurement from 96 K to 227 K at 0.1 MPa

The burgeoning demand for large-scale energy storage has catalyzed the advancement of Liquid Air Energy Storage (LAES) technology. However, the liquid-phase propane cold storage process in LAES systems encounters a significant challenge: the dissolution of nitrogen protection gas in propane poses a substantial risk to both operational safety and performance. Given the dearth of data on the diffusive solubility of nitrogen in propane under constant atmospheric pressure and low-temperature conditions, this study constructed a testbench and conducted experiments within a temperature range of 96–227 K at a pressure of 0.1 MPa. The molar diffusive solubilities at 227 K, 176 K, 139 K, and 96 K are 0.030 %, 0.177 %, 0.297 %, and 0.962 %, respectively. Besides, this study also fits a calculation equation for the diffusive solubility of nitrogen in propane, which applies to the propane cold storage process in LAES systems.

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来源期刊

Cryogenics 物理-热力学

CiteScore

3.80

自引率

9.50%

发文量

审稿时长

2.1 months

期刊介绍： Cryogenics is the world''s leading journal focusing on all aspects of cryoengineering and cryogenics. Papers published in Cryogenics cover a wide variety of subjects in low temperature engineering and research. Among the areas covered are: - Applications of superconductivity: magnets, electronics, devices - Superconductors and their properties - Properties of materials: metals, alloys, composites, polymers, insulations - New applications of cryogenic technology to processes, devices, machinery - Refrigeration and liquefaction technology - Thermodynamics - Fluid properties and fluid mechanics - Heat transfer - Thermometry and measurement science - Cryogenics in medicine - Cryoelectronics