| 毛细管绝热节流过程焓变化特性的理论分析与实验验证 |
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| 引用本文： | 余华明,何钦波.毛细管绝热节流过程焓变化特性的理论分析与实验验证[J].顺德职业技术学院学报,2008,6(1):30-32. |
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| 作者姓名： | 余华明 何钦波 |
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| 作者单位： | 顺德职业技术学院机电工程系,广东,佛山528333 |
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| 摘 要： | 计算分析了焓相等和滞止焓相等情况下毛细管中R22节流特性参数及其变化规律．并将两种情况下所选取的毛细管与真实制冷系统毛细管比较。理论计算和实验结果都表明滞止焓相等才是毛细管绝热节流的基本特性，而绝热节流焓相等的理论不够准确。
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| 关 键 词： | 毛细管 绝热节流过程 焓特性 |
| 文章编号： | 1672-6138（2008）01-0030-03 |
| 收稿时间： | 2007-10-12 |
| 修稿时间： | 2007年10月12 |
Analysis and Experimental Verification for Enthalpy Characteristics of Adiabatic Throttle Process in Capillary Tube |
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| Authors: | YU Hua-ming HE Qin-bo |
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| Institution: | (Department of Mechanical and Electric Engineering, Shunde Polytechnic, Foshan Guangdong 528333,China) |
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| Abstract: | Throttle characteristic parameter and its variation of R22 in capillary tube are studied under two conditions：enthalpy and stagnation enthalpy are conserved respectively. The capillary tubes selected on the two conditions are compared with an realistic capillary tube in a refrigerator respectively. The basic character that the stagnation enthalpy is conserved is shown to be correct, which is proved by theoretic calculation and experiment. The enthalpy is shown not to be conserved. |
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| Keywords: | capillary tube adiabatic throttling process characteristic of enthalpy |
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