Thermal Characteristics of Heat Pipe with Axially Swallow-tailed Microgrooves

Chinese Journal of Chemical Engineering ›› 2010, Vol. 18 ›› Issue (2): 185-193.

Thermal Characteristics of Heat Pipe with Axially Swallow-tailed Microgrooves

陈永平, 朱旺法, 张程宾, 施明恒

School of Energy and Environment, Southeast University, Nanjing 210096, China

收稿日期:2009-06-06 修回日期:2009-12-17 出版日期:2010-04-28 发布日期:2010-04-28
通讯作者: CHEN Yongping,E-mail:ypchen@seu.edu.cn
基金资助:
Supported by the 11th Five Year National Science and Technology Support Key Project of China(2008BAJ12B02)

Thermal Characteristics of Heat Pipe with Axially Swallow-tailed Microgrooves

CHEN Yongping, ZHU Wangfa, ZHANG Chengbin, SHI Mingheng

School of Energy and Environment, Southeast University, Nanjing 210096, China

Received:2009-06-06 Revised:2009-12-17 Online:2010-04-28 Published:2010-04-28
Supported by:
Supported by the 11th Five Year National Science and Technology Support Key Project of China(2008BAJ12B02)

摘要/Abstract

摘要： A thermal model for a heat pipe with axially swallow-tailed microgrooves is developed and analyzed numerically to predict the heat transfer capacity and total thermal resistance.The effect of heat load on the axial distribution of capillary radius,and the effect of working temperature and wick structure on the maximum heat transfer capability,as well as the effect of the heat load and working temperature on the total thermal resistance are all investigated and discussed.It is indicated that the meniscus radius increases non-linearly and slowly at the evaporator and adiabatic section along the axial direction,while increasing drastically at the beginning of the condenser section.The pressure difference in the vapor phase along the axial direction is much smaller than that in the liquid phase.In addition,the heat transfer capacity is deeply affected by the working temperature and the size of the wick.A groove wick structure with a wider groove base width and higher groove depth can enhance the heat transfer capability.The effect of the working temperature on the total thermal resistance is insignificant;however,the total thermal resistance shows dependence upon the heat load.In addition,the accuracy of the model is also verified by the experiment in this paper.

关键词: grooved heat pipe, heat transfer capacity, total thermal resistance, capillary

Abstract: A thermal model for a heat pipe with axially swallow-tailed microgrooves is developed and analyzed numerically to predict the heat transfer capacity and total thermal resistance.The effect of heat load on the axial distribution of capillary radius,and the effect of working temperature and wick structure on the maximum heat transfer capability,as well as the effect of the heat load and working temperature on the total thermal resistance are all investigated and discussed.It is indicated that the meniscus radius increases non-linearly and slowly at the evaporator and adiabatic section along the axial direction,while increasing drastically at the beginning of the condenser section.The pressure difference in the vapor phase along the axial direction is much smaller than that in the liquid phase.In addition,the heat transfer capacity is deeply affected by the working temperature and the size of the wick.A groove wick structure with a wider groove base width and higher groove depth can enhance the heat transfer capability.The effect of the working temperature on the total thermal resistance is insignificant;however,the total thermal resistance shows dependence upon the heat load.In addition,the accuracy of the model is also verified by the experiment in this paper.

Key words: grooved heat pipe, heat transfer capacity, total thermal resistance, capillary

陈永平, 朱旺法, 张程宾, 施明恒. Thermal Characteristics of Heat Pipe with Axially Swallow-tailed Microgrooves[J]. Chinese Journal of Chemical Engineering, 2010, 18(2): 185-193.

CHEN Yongping, ZHU Wangfa, ZHANG Chengbin, SHI Mingheng. Thermal Characteristics of Heat Pipe with Axially Swallow-tailed Microgrooves[J]. Chin.J.Chem.Eng., 2010, 18(2): 185-193.

参考文献

1 Suman, B., “On the fill charge and the sensitivity analysis of a V-shaped micro heat pipe”, AIChE J., 52 (9), 3041-3054 (2006).
2 Suman, B., “A steady state model and maximum heat transport capacity of an electrohydrodynamically augmented micro-grooved heat pipe”, Int. J. Heat Mass Transfer, 49 (21-22), 3957-3967 (2006).
3 Do, K.H., Kim, S.J., Hwang, G., “Modeling and thermal optimization of a micro heat pipe with curved triangular grooves”, Adv. Electron. Packag., 2, 271-278 (2003).
4 Khrustalev, D., Faghri, A., “Coupled liquid and vapor flow in miniature passages with micro grooves”, J. Heat Transfer Trans. ASME, 121 (3), 729-733 (1999).
5 Do, K.H., Kim, S.J., G.arimella, S.V., “A mathematical model for analyzing the thermal characteristics of a flat micro heat pipe with a grooved wick”, Int. J. Heat Mass Transfer, 51 (19-20), 4637-4650 (2008).
6 Tao, H.Z., Zhang, H., Zhuang, J., Jerry W.B., “Experimental study of partially flattened axial grooved heat pipes”, Chin. Sci. Bull., 53 (9), 3058-3072 (2008).
7 Kim, S.J., Seo, J.K., Do, K.H., “Analytical and experimental investigation on the operational characteristics and the thermal optimization of a miniature heat pipe with a grooved wick structure”, Int. J. Heat Mass Transfer, 46 (11), 2051-2063 (2003).
8 Suh, J.S., Park, Y.S., “Analysis of thermal performance in a micro flat heat pipe with axially trapezoidal groove”, Tamkang J. Sci. Eng., 6 (4), 201-206 (2003).
9 Jiao, A.J., Riegler, R., Ma, H.B., Peterson, G.P., “Thin film evaporation effect on heat transport capability in a grooved heat pipe”, Microfluid. Nanofluid., 1 (3), 227-233 (2005).
10 Luan, T., Cheng, L., Cao, H.Z., Qu, Y., “Effects of heat sources on heat transfer of axially grooved heat pipe”, J. Chem. Ind. Eng. (China), 58 (4), 848-853 (2007). ( in Chinese)
11 Chen, Y.P., Zhang, C.B., Shi, M.H., Wu, J.F., Peterson, G.P., “Study on flow and heat transfer characteristics of heat pipe with axial ‘ '-shaped microgrooves”, Int. J. Heat Mass Transfer, 52 (3-4), 636-643 (2009).
12 Harwell, W., Kaufman, W.B., Tower, L.K., “Reentrant groove heat pipe”, In:Proceedings of the 12th AIAA Thermophysics Conf., Albuquerque, N. Mex, AIAA Paper 1977-773 (1977).
13 Thomas, S.K., Damle, V.C., “Fluid flow in axial reentrant grooves with application to heat pipes”, J. Thermophys. Heat Transfer, 19 (3), 395-405 (2005).
14 Zhang, C.B., Chen, Y.P., Shi, M.H., Peterson, G.P., “Optimization of heat pipe with axial ‘Ω'-shaped micro grooves based on a niched Pareto genetic algorithm(NPGA)”, Appl. Therm. Eng., 29 (16), 3340-3345 (2009).
15 Wang, L.W., Wang, R.Z., Xia, Z.Z., Wu, J.Y., “Design of heat pipe type adsorption ice maker for fishing boats”, Chin. J. Chem. Eng., 13 (3), 403-410 (2005).
16 Ma, Y.X., Zhang, H., “Analysis of heat transfer performance of oscillating heat pipes based on a central composite design”, Chin. J. Chem. Eng., 14 (2), 223-228 (2006).
17 Honda, H., Wang, Y.S., “Theoretical study of evaporation heat transfer in horizontal microfin tubes:Stratified flow model”, Int. J. Heat Mass Transfer, 47 (17-18), 3971-3983 (2004).
18 Wang, H.S., Honda, H., “A theoretical study of film condensation in horizontal microfin tubes”, J. Heat Transfer Trans. ASME, 124 (1), 94-101 (2002).
19 Chen, Y.P., Shi, M.H., Cheng, P., Peterson, G.P., “Condensation in microchannels”, Nanoscale Microscale Thermophys. Eng., 12 (2), 117-143 (2008).
20 Chen, Y.P., Sobhan, C.B., Peterson, G.P., “Review of condensation heat transfer in microgravity environments”, J. Thermophys. Heat Transfer, 20 (3), 353-360 (2006).
21 Dubois, M., Mullender, B., Goethals, P., Supper, W., Beddows, A., “Space qualification results of high-capacity grooved heat pipes”, Society of Automotive Engineers, SAE Paper, 972453, Warrendale, PA (1997).
22 Faghri, A., Heat Pipe Science and Technology, Taylor & Francis, Washington DC (1995).
23 Khrustalev, D., Faghri, A., “Thermal analysis of a micro heat pipe”, J. Heat Transfer Trans. ASME, 116 (1), 189-198 (1994).
24 Khrustalev, D., Faghri, A., “Thermal characteristics of conventional and flat miniature axially-grooved heat pipes”, J. Heat Transfer Trans. ASME, 117 (4), 1048-1054 (1995).
25 Hopkins, R., Faghri, A., Khrustalev, D., “Flat miniature heat pipes with micro capillary grooves”, J. Heat Transfer Trans. ASME, 121 (1), 102-109 (1999).
26 Hopkins, R.,“Flat miniature heat sinks and heat pipes with micro capillary grooves:Manufacturing, modeling and experimental study”, M. S. Thesis, University of Connecticut at Storrs, USA (1996).
27 Hartmut, A.W., Juan, A.H., Juan, I.R., Raquel O., Manuel, T., Miguel, A.C., “Contact angle hysteresis on dentin surfaces measured with ADSA on drops and bubbles”, Colloids Surf. A Physicochem. Eng. Aspects, 206, 469-483 (2002).
28 Valérie, S., Mohamed, C.Z., Monique, L., “Effect of interfacial phenomena on evaporative heat transfer in micro heat pipes”, Int. J. Therm. Sci., 39, 498-504 (2000).
29 Chi, S.W., Heat Pipe Theory and Practices, Hemisphere Publishing, New York (1976).
30 White, F., Viscous Fluid Flow, McGraw-Hill, New York (1991).
31 Sparrow, E.M., Haji-Sheikh, A., “Flow and heat transfer in ducts of arbitrary shape with arbitrary thermal boundary conditions”, J. Heat Transfer-Trans. ASME, 88 (4), 351-358 (1966)

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Thermal Characteristics of Heat Pipe with Axially Swallow-tailed Microgrooves

Thermal Characteristics of Heat Pipe with Axially Swallow-tailed Microgrooves

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