Measurement and Correlation of the Solubilities of Oxygen, Nitrogen, and Carbon Dioxide in JP-10

Abstract

New experimental solubility data of nitrogen, oxygen, and carbon dioxide in JP-10 (exotetrahydrodicyclopentadiene) in the temperature range from 293 to 343 K in the intervals of 10 K and in the pressure range from 0.5 to 7.5 MPa were reported. The relative expanded uncertainty of solubility measurement is estimated to be less than 4% with a level of confidence of 95%. The solubility order of the three gases in JP-10 in the studied temperature and pressure range is carbon dioxide > oxygen > nitrogen. The Henry’s constants and the thermodynamic properties of solvation were calculated from the solubility data. A modified KK equation was used to represent the experimental data with AARD less than 1.9%.

Solubilities of CO2, O2 and N2 in rocket propellant 5 under low pressure

“…( 11 ) for CO 2 , O 2 and N 2 . Henry's constant decreases as the temperature increases for O 2 and N 2 but increases with the temperature for CO 2 , that similar to the trend of CO 2 , O 2 and N 2 solubility in JP-10 in literature 18 . Henry's constant for the three gases in RP5 decreases in the order N 2 > O 2 > CO 2 , which is opposite to the trend observed for the solubility.…”

“…The gas tightness of the experimental system is checked before making measurements by injecting compressed air at 300 kPa into the system; the experimental requirements are met if the pressure drop is less than 1 kPa after 24 h 18 . First, approximately 260 g of RP5 are poured into the fuel tank, and the temperature of the thermostatic bath is set to the experimental temperature.…”

“…The isochoric saturation method offers the advantages of simple operation, a low experimental cost and high accuracy over other methods and is thus widely used to measure gas solubility in liquids. Liu et al 18 measured the solubilities of oxygen, nitrogen and carbon dioxide in JP-10 jet fuel at temperatures ranging from 293 to 343 K and pressures ranging from 0.5 to 7.5 MPa. Jia et al 19 investigated the solubilities of carbon dioxide, oxygen and nitrogen in aqueous ethylene glycol solution at temperatures ranging from 263 to 293 K and pressures ranging from 9 to 101 kPa.…”