上海交通大学学报 ›› 2023, Vol. 57 ›› Issue (8): 1028-1036.doi: 10.16183/j.cnki.jsjtu.2022.071
所属专题: 《上海交通大学学报》2023年“机械与动力工程”专题
收稿日期:
2022-03-21
修回日期:
2022-05-30
接受日期:
2022-06-06
出版日期:
2023-08-28
发布日期:
2023-08-31
通讯作者:
谷 波,教授,博士生导师,电话(Tel.):021-34206260;E-mail:作者简介:
张智铤(1998-),硕士生,从事R32制冷系统传热流动性能研究.
基金资助:
ZHANG Zhiting, GU Bo(), ZENG Weijie, HU Jinting, WU Pengzhan
Received:
2022-03-21
Revised:
2022-05-30
Accepted:
2022-06-06
Online:
2023-08-28
Published:
2023-08-31
摘要:
目前没有适用于各类工质的滞油量预测方法.对压缩机吸气管内的滞油特性展开研究,建立了通用的滞油量预测方法.根据公开文献建立了吸气管滞油量的实验值数据库,在分析了各个影响因素之后,对数据库中的滞油体积比进行了拟合.根据拟合所得关联式以及吸气管进口工质的状态可以对滞油量进行预测.此外,以R32/PVE VG68为工质进行吸气管滞油量测试实验.比较实验结果与关联式计算结果,可得:对于R32/PVE VG68在吸气管内的流动,该计算方法能准确地呈现滞油量随各因素的变化趋势,且能较精确地预测各工况下的滞油量.
中图分类号:
张智铤, 谷波, 曾炜杰, 胡晋珽, 吴鹏展. 含油制冷剂在吸气管内的滞油量预测研究[J]. 上海交通大学学报, 2023, 57(8): 1028-1036.
ZHANG Zhiting, GU Bo, ZENG Weijie, HU Jinting, WU Pengzhan. Prediction of Oil Retention in Compressor Suction Lines with Refrigerant/Oil Mixture[J]. Journal of Shanghai Jiao Tong University, 2023, 57(8): 1028-1036.
表1
根据公开文献所建立的吸气管内制冷剂/润滑油混合物滞油量数据库
编号 | 文献 | 工质 | Di/mm | 吸气管 方向 | Gtot/ (kg·m-2·s-1) | wo,act/% | 数据点 个数 | 最大不确定度 | |
---|---|---|---|---|---|---|---|---|---|
1 | Cremaschi等[ | R22/MO | 19.0 | 水平 | 160 | 0.8~6 | 32.02 | 23 | 12.00% |
R410A/POE | 19.0 | 水平 | 160 | 0.8~6 | 37.46 | 23 | 12.00% | ||
R134a/PAG | 19.0 | 水平 | 160 | 0.8~6 | 26.26 | 23 | 12.00% | ||
R134a/POE | 19.0 | 水平 | 160 | 0.8~6 | 25.30 | 23 | 12.00% | ||
2 | Zoellick等[ | R410A/POE 32 | 7.1 | 水平、竖直 | 100~250 | 1, 3, 5 | 19.80 | 43 | 1.17% (0.03 g) |
18.5 | 水平、竖直 | 60~100 | 1, 3, 5 | 19.80 | 43 | 1.17% (0.03 g) | |||
3 | Budhiraja[ | R134a/AB32 | 10.2 | 水平、竖直 | 50~140 | 1, 3, 5 | 51.83 | 42 | 0.54% (0.03 g) |
4 | Ramakrishnan等[ | R134a/POE100 | 10.2 | 水平、竖直 | 30~120 | 1, 3, 5 | 28.31 | 34 | (0.03 g) |
5 | Sethi等[ | R134a/POE32 | 10.2 | 水平、竖直 | 35~140 | 1, 3, 5 | 11.88 | 40 | 2.00%(0.08 g) |
总计 | 182 |
表2
润滑油及液体混合物的物性参数汇总表
编号 | 作者 | 工质 | 压力/温度 | ρo/ (kg·m-3) | ρmix/ (kg·m-3) | wr,mix/ % | νmix/ (mm2·s-1) | σo/ (mN2·m-1) | σmix/ (mN2·m-1) |
---|---|---|---|---|---|---|---|---|---|
1 | Cremaschi等[ | R22/MO | p=550 kPa, t=24 ℃ | 862.0b | 888.1 | 10.56a | 19.00 | 33.0a | 31.7 |
R410A/POE | p=550 kPa, t=24 ℃ | 985.3b | 990.8 | 7.63b | 28.55 | 46.0a | 44.4 | ||
R134a/PAG | p=550 kPa, t=24 ℃ | 989.0* | 1 042.4 | 28.00a | 11.81 | 31.5a | 28.0 | ||
R134a/POE | p=550 kPa, t=24 ℃ | 1008.0b | 1 044.7 | 21.00a | 11.37 | 46.0a | 41.8 | ||
2 | Zoellick等[ | R410A/POE 32 | tsat=12 ℃, t=27 ℃ | 1 019.3 | 1 028.3 | 26.60 | 6.71 | 46.0a | 40.1 |
3 | Budhiraja[ | R134a/AB32 | tsat=13 ℃, t=28 ℃ | 864.3 | 925.0 | 23.70 | 30.00 | 29.0 | 26.3 |
4 | Ramakrishnan等[ | R134a/POE100 | tsat=13 ℃, t=28 ℃ | 970.7b | 1 003.6 | 17.50b | 16.27b | 46.0* | 42.5 |
5 | Sethi等[ | R134a/POE32 | tsat=13 ℃, t=28 ℃ | 1 003.6b | 1 039.9 | 21.80b | 6.83b | 46.0a | 41.6 |
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