Roll Heat Pipe Transient Analysis

Roll Heat Pipe Transient Analysis

Taoufik Brahim Abdelmajid Jemni 

Université de Monastir, Ecole Nationale d’Ingénieurs de Monastir, Laboratoire d’Etudes des Systèmes Thermique et Energétique LESTE, Avenue Ibn Jazzar 5019 Monastir, TUNISIE

30 June 2012
| Citation



A transient analysis has been carried out in detail using the finite difference method for the roll heat pipe wish is firstly studied by Jalilvand [1] in photocopy machines. The objective of this study is to better understand this type of heat pipes for further heat recovery applications or other designs processes that are essentially transient. The numerical results shows that the roll heat pipe perform better than the annular heat pipe of same dimension and the condenser region is essentially controlled by the heat Input and the convective heat transfer coefficient.

1. Introduction
2. Model Description
3. Finite Difference Method
4. Results and Discussion
5. Conclusion

[1] Jalilvand.A; Katsuta M; Saitou. K; Toyonaga. I, A The Study and Development of Roll Heat Pipe Performance Heat Transfer Engineering. Volume 29 ( 12 ): $977-983$ Taylor \& Francis, Dec $1,2008$.

[2] RE. Critoph, The use of thermosyphon heat pipes to improve the performance of carbon-ammonia adsorption refrigerator, in: Procceedings IV Minsk International Seminar "Heat Pipes, Heat Pumps, Refrigerators", $12-15$ September $2000,$ Minsk, Belarus, pp. $35-41$

[3] LL Vasiliev, V.M. Bogdanov, USSR patent 174411 "Heat Pipe", B.I. No. $24,30.06 .1992,1992$

[4] C. Kren, C. Schweigler, F. Ziegler, Efficient Li-Br absorption chillers for the European air conditioning market, in: ISHPC'02 Proceedings of the International Sorption Heat Pump Conference, Shanghai, China, $24-27$ September $2002,$ pp. $76-83$

[5] L.L. Vasiliev, L.E. Kanonchik, AG. Kulakov, A A. Antuh, NaX zeolite, carbon fibre and CaC12/ammonia reactors for heat pumps and refrigerators, Joumal of Adsorption, USA (2) (1996) 311-3.

[6] Leonard L. Vasiliev, review, Heat pipes in modern heat exchangers Applied Thermal Engineering 25 $1-19$

[7] $\mathrm{Kim} \mathrm{K}$. S... Kim H. B., Lee $\mathrm{K}$. W., (2003 ), development of heat pipe heating roller in laser printer, Proc. 7 th Int. Heat Pipe Symposium, Jeju, Korea, pp. 199-203.

[8] Boo J. H., Kim D. H., Park S. Y. (2004), A study on the thermal performance of a concentric annular heat pipes, Proc. Of 13 th Int. Heat Pipe Conference, Shanghai, China, pp. $486-490$

[9] Faghri, A., Thomas, S., Performance Characteristics of a Concentric Anmular Heat Pipe: $1-$ Experimen-tal Prediction and Analysis of the Capillary Limit, Joumal of Heat Transfer, $111(1989), 4,$ pp. $844-850$

[10] A Nouri-Borujerdi, and M. Layeghi. 'Tumerical Analysis of Vapour Flow in Concentric Annular Heat Pipes," Transaction of ASME: Joumal of Heat Transfer, Vol $126,$ pp. $442-448,2004$

[11] Faghri A., ( 1995 ), Heat Pipe Science and Technology, Taylor \& Francis, Washington, DC.