孔密度对泡沫金属内湿空气的换热与压降特性影响分析

doi:10.11949/j.issn.0438-1157.20151712

化工学报 ›› 2016, Vol. 67 ›› Issue (6): 2218-2223.DOI: 10.11949/j.issn.0438-1157.20151712

孔密度对泡沫金属内湿空气的换热与压降特性影响分析

翁晓敏, 胡海涛, 赖展程, 庄大伟, 丁国良

上海交通大学制冷与低温工程研究所, 上海 200240

收稿日期:2015-11-13 修回日期:2016-03-04 出版日期:2016-06-05 发布日期:2016-06-05
通讯作者: 胡海涛
基金资助:
国家自然科学基金项目(51576122);上海市自然科学基金项目(15ZR1422000)。

Analysis of influence of pore density on heat transfer and pressure drop characteristics of wet air in metal foams

WENG Xiaomin, HU Haitao, LAI Zhancheng, ZHUANG Dawei, DING Guoliang

Institute of Refrigeration & Cryogenics Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2015-11-13 Revised:2016-03-04 Online:2016-06-05 Published:2016-06-05
Supported by:
supported by the National Natural Science Foundation of China (51576122) and the Natural Science Foundation of Shanghai (15ZR1422000).

摘要/Abstract

摘要：

通过实验研究,得到不同孔密度的泡沫金属内湿空气的换热和压降特性,并对泡沫金属换热器综合性能进行了分析。测试样件为泡沫铜,孔密度为5~40PPI(pores per inch),孔隙率为95%。研究结果表明,由于凝结水的存在,泡沫金属内的湿空气传热系数随着孔密度的增大先增大后减小,孔密度为15PPI时达到最大值;压降随着孔密度的增大而增大,且大于20 PPI时压降增大更明显。综合考虑传热系数与压降因素,泡沫金属孔密度为15PPI时综合性能最佳。

关键词: 泡沫金属, 孔密度, 换热, 压降, 湿空气

Abstract:

The heat transfer and pressure drop characteristics of wet air in metal foams with different pore density were experimentally investigated, and the comprehensive performance of metal foam heat exchangers was analyzed. The test sample is copper foam, the PPI value of the tested metal foam covers 5-40 and the porosity is 95%. The results showed that the heat transfer coefficient increased initially and then decreased with the increase of PPI values due to the presence of the condense water. It reached up to the maximum value as the pore density was 15 PPI. The pressure drop increased with increasing pore density and the increment was more obvious as PPI value was higher than 20. The comprehensive performance was the best for the metal foam with 15 PPI by considering both the heat transfer coefficient and pressure drop.

Key words: metal foam, pore density, heat transfer, pressure drop, wet air

中图分类号:

TK124

翁晓敏, 胡海涛, 赖展程, 庄大伟, 丁国良. 孔密度对泡沫金属内湿空气的换热与压降特性影响分析[J]. 化工学报, 2016, 67(6): 2218-2223.

WENG Xiaomin, HU Haitao, LAI Zhancheng, ZHUANG Dawei, DING Guoliang. Analysis of influence of pore density on heat transfer and pressure drop characteristics of wet air in metal foams[J]. CIESC Journal, 2016, 67(6): 2218-2223.

参考文献 18

[1]	DE SCHAMPHELEIRE S, DE JAEGER P, HUISSEUNE H, et al. Thermal hydraulic performance of 10 PPI aluminium foam as alternative for louvered fins in an HVAC heat exchanger [J]. Applied Thermal Engineering, 2013, 51(1): 371-382.
[2]	CALMIDI V V, MAHAJAN R L. Forced convection in high porosity metal foams [J]. Heat Transfer, 2000, 122: 557-565.
[3]	BOOMSMA K, POULIKAKOS D. On the effective thermal conductivity of a three dimensionally structured fluid saturated metal foam [J]. Heat and Mass Transfer, 2001, 44: 827-836.
[4]	翁晓敏, 胡海涛, 庄大伟, 等. 湿空气在泡沫金属内析湿过程的换热与压降特性影响因素分析[J]. 化工学报, 2015, 66(5): 1649-1655. WENG X M, HU H T, ZHUANG D W, et al. Analysis of influence factors for heat transfer and pressure drop characteristics of moist air in metal foams during dehumidifying process [J]. CIESC Journal, 2015, 66(5): 1649-1655
[5]	HU H T, WENG X M, ZHUANG D W, et al. Heat transfer and pressure drop characteristics of wet air flow in metal foam under dehumidifying conditions [J]. Applied Thermal Engineering, 2016, 93: 1124-1134.
[6]	WANG C C, DU Y J, CHANG Y J, et al. Airside performance of herringbone fin-and-tube heat exchangers in wet conditions [J]. The Canadian Journal of Chemical Engineering, 1999, 77(6): 1225-1230.
[7]	LIN Y T, HWANG Y M, WANG C C. Performance of the herringbone wavy fin under dehumidifying conditions [J]. International Journal of Heat and Mass Transfer, 2002, 45(25): 5035-5044.
[8]	PIROMPUGD W, WONGWISES S, WANG C C. Simultaneous heat and mass transfer characteristics for wavy fin-and-tube heat exchangers under dehumidifying conditions [J]. Heat Mass Transfer, 2006, 49(1/2): 132-143.
[9]	MANCIN C, ZILIO A, DIANI L, et al. Experimental air heat transfer and pressure drop through copper foams [J]. Experimental Thermal and Fluid Science, 2012, 36: 224-232.
[10]	MANCIN C, ZILIO A, DIANI L, et al. Air forced convection through metal foams: experimental results and modelling [J]. International Journal of Heat and Mass Transfer, 2013, 62: 112-123.
[11]	DUKAN N, BA?CI Ö, ÖZDEMIR M. Thermal development in open-cell metal foam: an experiment with constant wall heat flux [J]. International Journal of Heat and Mass Transfer, 2015, 85: 852-859.
[12]	Method of testing forced circulation air cooling and air heating coils: ASHRAE 33-78 [S]. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., 1978.
[13]	YU R, SOMMERS A D, OKAMOTO N C. Effect of a micro-grooved fin surface design on the air-side thermal-hydraulic performance of a plain fin-and-tube heat exchanger [J]. International Journal of Refrigeration, 2013, 36(3): 1078-1089.
[14]	COLEBROOK C F. Turbulent flow in pipes, with particular reference to the transition region between the smooth and rough pipe laws [J].Journal of the Institution of Civil Engineers, 1939, 11(4): 133-156. DOI: 10.1680/ijoti.1939.13150.
[15]	GNIELINSKI V. New equations for heat and mass-transfer in turbulent pipe and channel flow [J]. International Chemical Engineering, 1976, 16(2): 359-368.
[16]	MOFFAT R J. Describing the uncertainties in experimental results [J]. Experimental Thermal and Fluid Science, 1998, 1(1): 3-17.
[17]	MU C, PANG J, LU Q, et al. Effects of surface topography of material on nucleation site density of dropwise condensation [J]. Chemical Engineering Science, 2008, 63(4): 874-880.
[18]	秦秋星, 李维. 换热器能效评定统一标准评价指标的研究[J]. 数字石油和化工, 2009, (5): 4448. QIN Q X, LI W. Research on efficiency evaluation standard of heat exchanger [J]. Digital Petroleum and Chemical, 2009, (5): 4448.

孔密度对泡沫金属内湿空气的换热与压降特性影响分析

Analysis of influence of pore density on heat transfer and pressure drop characteristics of wet air in metal foams

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