Dimensional analysis on multi-component mixed-refrigerants flow characteristics in adiabatic capillary tube

机译：绝热毛细管中多组分混合制冷剂流动特性的尺寸分析

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In multi-component mixed-refrigerants Joule-Thomson cryocooler, the refrigerants flow in the capillary tube is very complicated. Most design methods in the literatures were developed on a theoretical simulation of the two-phase flow through the tube with some simple assumptions such as homogenous two-phase flow and constant friction factor along the tube. Some correlations or methods were valid only for limited refrigerants. In this paper, instead of the complicated mathematical model, a dimensionless correlation is developed to predict the mixed-refrigerants flow characteristics through adiabatic capillary tube. This ease-to-use and fairly accurate method, suitable for hand calculations, can calculate the refrigerants flow rate directly.

机译：在多组分混合制冷剂焦耳-汤姆森低温冷却器中，制冷剂在毛细管中的流动非常复杂。文献中的大多数设计方法都是基于对两相流经管的理论模拟而开发的，并采用了一些简单的假设，例如均匀的两相流和沿管的恒定摩擦系数。一些相关性或方法仅对有限的制冷剂有效。在本文中，代替复杂的数学模型，开发了无量纲相关性来预测混合制冷剂通过绝热毛细管的流动特性。这种易于使用且相当准确的方法，适合手动计算，可以直接计算制冷剂流量。

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《International Cryogenic Engineering Conference(ICEC 20)》|2004年|161-164|共4页
会议地点 Beijing(CN)
作者
Qi Y.F.; Gong M.Q.; Sun Z.H.; Luo E.C.; Wu J.F.;
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Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100080 China;

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Dimensional analysis on multi-component mixed-refrigerants flow characteristics in adiabatic capillary tube

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