用功率方程逼近液体密度对温度的依赖关系

IF 0.6 4区工程技术 Q4 ENGINEERING, CHEMICAL

Theoretical Foundations of Chemical Engineering Pub Date : 2025-09-21 DOI:10.1134/S0040579525700691

A. B. Golovanchikov, N. A. Prokhorenko, N. A. Merentsov, Yu. V. Bogdanova

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引用次数: 0

摘要

比较了用已知的典型方程以表或图的形式近似液体密度对温度的依赖关系的准确性，以及用所谓假塑性液体的奥斯瓦尔德·德·威尔幂方程代替粘性牛顿流体流变学的代数依赖关系所得到的幂修正。结果表明，对于功中所考虑的液体（水、苯、塑料润滑剂和机油），在较宽的温度变化范围内，所提出的修正功率方程使理论密度值与规定值的平均相对偏差和最大相对偏差减小了数倍。

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Approximation of the Dependence of Liquid Density on Temperature by a Power Equation

A comparison is made of the accuracy of approximation of the dependence of the liquid density on temperature given in the form of a table or graph by a known typical equation and its power modification obtained by replacing the algebraic dependence of the rheology of a viscous Newtonian fluid with the Ostwald de Wiel power equation for so-called pseudoplastic liquids. It is shown that for the liquids considered in the work (water, benzene, plastic lubricant, and machine oil), the proposed modified power equation in a wide range of temperature changes reduces both the average relative deviation of the theoretical density values from the specified values and the largest relative deviation by several times.

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来源期刊

Theoretical Foundations of Chemical Engineering 工程技术-工程：化工

CiteScore

1.20

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.