CIESC Journal ›› 2020, Vol. 71 ›› Issue (3): 1026-1034.DOI: 10.11949/0438-1157.20190646
• Fluid dynamics and transport phenomena • Previous Articles Next Articles
Lele WANG,Yuande DAI(),Siyao TIAN,Qinhan LIN
Received:
2019-06-10
Revised:
2019-10-22
Online:
2020-03-05
Published:
2020-03-05
Contact:
Yuande DAI
通讯作者:
戴源德
基金资助:
CLC Number:
Lele WANG, Yuande DAI, Siyao TIAN, Qinhan LIN. Experimental investigation on characteristics of R290 boiling heat transfer in horizontal micro-fin tubes with small diameter[J]. CIESC Journal, 2020, 71(3): 1026-1034.
王乐乐, 戴源德, 田思瑶, 林秦汉. R290在小管径水平微肋管内沸腾传热的实验研究[J]. 化工学报, 2020, 71(3): 1026-1034.
测量参数 | 测量仪表及型号 | 测量范围 | 误差 |
---|---|---|---|
质量流量mref/(kg·h-1) | DMF-1-1A/DX 科氏质量流量计 | 0~40 | ±0.2% |
体积流量Vw/(L·min-1) | LDY-S 电磁流量计 | 0.05~3.50 | ±0.5% |
工质温度tsat/℃ | Pt100 电阻温度计 | -50~200 | ±0.1℃ |
内管外壁温two/℃ | TT-T-30-SLE T型热电偶 | -200~150 | ±0.1℃ |
压力p/MPa | Trafan8251 压力传感器 | 0~6 | ±0.3% |
Table 1 Measuring and test instruments
测量参数 | 测量仪表及型号 | 测量范围 | 误差 |
---|---|---|---|
质量流量mref/(kg·h-1) | DMF-1-1A/DX 科氏质量流量计 | 0~40 | ±0.2% |
体积流量Vw/(L·min-1) | LDY-S 电磁流量计 | 0.05~3.50 | ±0.5% |
工质温度tsat/℃ | Pt100 电阻温度计 | -50~200 | ±0.1℃ |
内管外壁温two/℃ | TT-T-30-SLE T型热电偶 | -200~150 | ±0.1℃ |
压力p/MPa | Trafan8251 压力传感器 | 0~6 | ±0.3% |
外径do/mm | 内径di/mm | 总壁厚δ/mm | 底壁厚δw/mm | 齿顶高度Hf/mm | 齿顶角α/(°) | 螺纹条数n | 螺旋角β/(°) |
---|---|---|---|---|---|---|---|
5.00 | 4.00±0.03 | 0.50 | 0.35±0.03 | 0.15±0.02 | 40±5 | 65 | 18±2 |
7.00 | 6.00±0.03 | 0.50 | 0.35±0.03 | 0.15±0.02 | 40±5 | 65 | 18±2 |
Table 2 Structural parameters of inner tube
外径do/mm | 内径di/mm | 总壁厚δ/mm | 底壁厚δw/mm | 齿顶高度Hf/mm | 齿顶角α/(°) | 螺纹条数n | 螺旋角β/(°) |
---|---|---|---|---|---|---|---|
5.00 | 4.00±0.03 | 0.50 | 0.35±0.03 | 0.15±0.02 | 40±5 | 65 | 18±2 |
7.00 | 6.00±0.03 | 0.50 | 0.35±0.03 | 0.15±0.02 | 40±5 | 65 | 18±2 |
测试编号 | 体积流量/(L·min-1) | 进口温度/℃ | 出口温度/℃ | 比热容/(kJ·kg-1·℃-1) | 密度/(kg·m-3) | 漏热率/% | |
---|---|---|---|---|---|---|---|
1 | 热水 | 1.673 | 52.4 | 43.5 | 4.181 | 988.91 | 2.82 |
冷水 | 2.210 | 23.7 | 30.2 | 4.181 | 996.49 | ||
2 | 热水 | 1.552 | 53.2 | 43.3 | 4.181 | 988.78 | 2.30 |
冷水 | 2.224 | 24.0 | 30.7 | 4.181 | 996.38 | ||
3 | 热水 | 1.486 | 52.8 | 43.9 | 4.181 | 988.73 | 2.25 |
冷水 | 2.103 | 23.4 | 29.5 | 4.181 | 996.62 |
Table 3 Data of heat-balance test
测试编号 | 体积流量/(L·min-1) | 进口温度/℃ | 出口温度/℃ | 比热容/(kJ·kg-1·℃-1) | 密度/(kg·m-3) | 漏热率/% | |
---|---|---|---|---|---|---|---|
1 | 热水 | 1.673 | 52.4 | 43.5 | 4.181 | 988.91 | 2.82 |
冷水 | 2.210 | 23.7 | 30.2 | 4.181 | 996.49 | ||
2 | 热水 | 1.552 | 53.2 | 43.3 | 4.181 | 988.78 | 2.30 |
冷水 | 2.224 | 24.0 | 30.7 | 4.181 | 996.38 | ||
3 | 热水 | 1.486 | 52.8 | 43.9 | 4.181 | 988.73 | 2.25 |
冷水 | 2.103 | 23.4 | 29.5 | 4.181 | 996.62 |
Correlations | eR/% | eA /% | ω±20% | ω±30% |
---|---|---|---|---|
Choiet al.[ | -7.37 | 17.59 | 51.88 | 71.87 |
Fanget al.[ | -3.11 | 5.90 | 98.44 | 100 |
Pamitranet al.[ | 37.64 | 39.76 | 45.31 | 56.25 |
Bertschet al.[ | 23.59 | 27.22 | 46.87 | 70.31 |
Cavalliniet al.[ | 23.52 | 37.06 | 31.25 | 46.87 |
Yunet al.[ | -16.85 | 32.83 | 25.03 | 36.69 |
Table 4 Errors of correlations,prediction
Correlations | eR/% | eA /% | ω±20% | ω±30% |
---|---|---|---|---|
Choiet al.[ | -7.37 | 17.59 | 51.88 | 71.87 |
Fanget al.[ | -3.11 | 5.90 | 98.44 | 100 |
Pamitranet al.[ | 37.64 | 39.76 | 45.31 | 56.25 |
Bertschet al.[ | 23.59 | 27.22 | 46.87 | 70.31 |
Cavalliniet al.[ | 23.52 | 37.06 | 31.25 | 46.87 |
Yunet al.[ | -16.85 | 32.83 | 25.03 | 36.69 |
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