一氧化碳、氧气和氮气在低压下于火箭推进剂5中的溶解度。

Solubilities of CO, O and N in rocket propellant 5 under low pressure.

作者信息

Li Chaoyue, Feng Shiyu, Xu Lei, Peng Xiaotian, Liu Weihua

机构信息

School of Mechanical and Electrical Engineering, Jinling Institute of Technology, Nanjing, 211169, China.

School of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.

出版信息

Sci Rep. 2022 Mar 16;12(1):4533. doi: 10.1038/s41598-022-08340-8.

DOI:10.1038/s41598-022-08340-8

PMID:35296706

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8927475/

Abstract

The static method of isochoric saturation was used to measure the solubilities of CO, O and N in rocket propellant 5 (RP5) at temperatures ranging from 253.15 to 323.15 K in 10 K intervals and pressures ranging from 0 to 120 kPa. The measurement accuracy of the constructed experimental setup was verified by measuring the solubility of CO in water. The relative expanded uncertainty (k = 2) in the solubility data was less than 4.0%. The solubilities of CO, O and N in RP5 increased with pressure. As the temperature increased, the solubility decreased for CO solubility and increased for O and N. Henry's constants for the three gases in RP5 decreased over the experimental temperature and pressure ranges in the order of N > O > CO. The measured solubilities of CO, O and N could be fitted with a modified Krichevsky-Kasarnovsky equation, and the maximum deviation between the measured and calculated data was less than 8.04%, 7.03% and 6.18%, respectively.

摘要

采用等容饱和静态法，在温度范围为253.15至323.15 K（间隔为10 K）以及压力范围为0至120 kPa的条件下，测量了一氧化碳（CO）、氧气（O）和氮气（N）在火箭推进剂5（RP5）中的溶解度。通过测量CO在水中的溶解度，验证了所构建实验装置的测量精度。溶解度数据的相对扩展不确定度（k = 2）小于4.0%。CO、O和N在RP5中的溶解度随压力增加而增大。随着温度升高，CO的溶解度降低，而O和N的溶解度增加。在实验温度和压力范围内，这三种气体在RP5中的亨利常数按N＞O＞CO的顺序减小。所测得的CO、O和N的溶解度可用修正的克里切夫斯基 - 卡萨诺夫斯基方程拟合，测量值与计算值之间的最大偏差分别小于8.04%、7.03%和6.18%。