制冷剂/润滑油汽液相平衡实验系统的研制与验证

张朝仕; 黄展枫; 黄钗宜; 李廷勋

doi:10.3969/j.issn.0253-4339.2020.05.042

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制冷剂/润滑油汽液相平衡实验系统的研制与验证

更新时间：2024-07-18

- 制冷剂/润滑油汽液相平衡实验系统的研制与验证
- Development and Verification of a Vapor–liquid Equilibrium Experimental System for Refrigerants/Lubricants
- 制冷学报 2020年41卷第5期
- 作者机构：
  
  中山大学智能工程学院
- 作者简介：
- 基金信息：
  
  佛山市海内外重点招标课题（No.2013AH100023）资助。
- DOI：10.3969/j.issn.0253-4339.2020.05.042
  中图分类号：
- 纸质出版日期：2020，
- 稿件说明：
移动端阅览
张朝仕, 黄展枫, 黄钗宜, 等. 制冷剂/润滑油汽液相平衡实验系统的研制与验证[J]. 制冷学报, 2020,41(5).

ZHANG CHAOSHI, HUANG ZHANFENG, HUANG CHAIYI, et al. Development and Verification of a Vapor–liquid Equilibrium Experimental System for Refrigerants/Lubricants. [J]. Journal of refrigeration, 2020, 41(5).
张朝仕, 黄展枫, 黄钗宜, 等. 制冷剂/润滑油汽液相平衡实验系统的研制与验证[J]. 制冷学报, 2020,41(5). DOI： 10.3969/j.issn.0253-4339.2020.05.042.

ZHANG CHAOSHI, HUANG ZHANFENG, HUANG CHAIYI, et al. Development and Verification of a Vapor–liquid Equilibrium Experimental System for Refrigerants/Lubricants. [J]. Journal of refrigeration, 2020, 41(5). DOI： 10.3969/j.issn.0253-4339.2020.05.042.

摘要

针对制冷剂/润滑油相平衡测量，本文研制了一套基于循环法的高精度制冷剂/润滑油气液相平衡实验系统。该实验系统在循环系统上安装了可拆卸的样品罐，将循环法与称重分析法结合，避免了等体积饱和法由于理想假设而产生的系统误差，可适用于温度范围为263.15~373.15K的制冷剂/润滑油气液相平衡的测量。测量了温度为293.35?323.33K的R290的饱和蒸气压，与NIST数据库相比，最大相对误差为-0.18%。同时，测量了温度为303.35K的R290和角鲨烷的相平衡，并使用Aspen Plus中的PR方程结合单流体的van der Waals混合规则对实验结果及文献值进行了关联，本文和文献的最大相对误差分别为-0.37%和-0.76%。

Abstract

To measure the vapor-liquid equilibrium (VLE) of refrigerants/lubricants

a refrigerants/lubricants VLE experimental system with high precision was developed based on the cycle method. The circulation system was equipped with a detachable sample tank. It combined the cycle method and weighing method and eliminated the systematic error of isochoric saturation method due to the assumption. Furthermore

it could measure the VLE of refrigerants/lubricants at a temperature range of 263.15 K to 373.15K. The saturated vapor pressure of R290 was measured from 293.35 K to 323.33 K. The relative deviation of the pressure was less than -0.18% when compared to NIST REFPROP9.1. Additionally

the phase equilibrium values of R290 and squalane were measured at 303.35 K. The experimental data and literature data were correlated with the Peng–Robinson (PR) equation of state and one-fluid van der Waals mixing rules in Aspen Plus

and the results indicated maximum relative deviation of pressure of-0.37% and0.76%

respectively.

关键词

制冷剂润滑油气液相平衡循环法

Keywords

refrigerantlubricantvapor-liquid equilibriumcycle method

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