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Double Freon Hydrates: Composition and Thermodynamic Properties
Journal of Engineering Thermophysics ( IF 2.4 ) Pub Date : 2023-04-07 , DOI: 10.1134/s181023282301006x
Yu. Yu. Bozhko , R. K. Zhdanov , K. V. Gets , O. S. Subbotin , V. R. Belosludov

Abstract

The paper presents the results of calculations of the P-T diagram of “ice phase (liquid phase)–gas phase–hydrate phase” equilibrium for freons R23 and R34a and 90%R23+10%R134a mixture. It is shown the freon R134a forms a stable CS-II hydrate phase in the temperature range of 260–280 K and pressure range of 0.0267–0.21 MPa and freon R23 creates a stable CS-I hydrate phase in the temperature range of 260–280 K and pressure range of 0.238–0.75 MPa. The calculation results are consistent with the known experimental data. It is shown that addition of 10% of R134a to the freon mixture results in the formation of CS-II hydrate phase in the temperature range of 260–280 K and pressure range of 0.0167–0.15 MPa.



中文翻译:

双氟利昂水合物:组成和热力学性质

摘要

本文介绍了氟利昂 R23 和 R34a 以及 90%R23+10%R134a 混合物的“冰相(液相)-气相-水合物相”平衡 PT 图的计算结果。结果表明,氟利昂 R134a 在 260-280 K 的温度范围和 0.0267-0.21 MPa 的压力范围内形成稳定的 CS-II 水合物相,而氟利昂 R23 在 260-280 的温度范围内形成稳定的 CS-I 水合物相K 和压力范围为 0.238–0.75 MPa。计算结果与已知实验数据一致。结果表明,在 260-280 K 的温度范围和 0.0167-0.15 MPa 的压力范围内,向氟利昂混合物中添加 10% 的 R134a 会导致 CS-II 水合物相的形成。

更新日期:2023-04-08
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