Un modèle masse-ressort-registre d'un caloduc à pulsation avec un remplissage non-uniforme et asymétrique.
A mass-spring-damper model of a pulsating heat pipe with a non-uniform and asymmetric filling.
Auteurs : GÜRSEL G., FRIJNS A. J. H., HOMBURG F. G. A., et al.
Type d'article : Article
Résumé
A pulsating heat pipe (PHP) is a device that transfers heat from a hot spot to a cold side by oscillating liquid slugs and vapor plugs. Its working principle is based on interplay between convective heat transfer, evaporation of the liquid at the hot side and condensation of the vapor at the cold side. Several factors play an important role including pressure differences, frictional forces, inertia forces, capillary forces and gravitational forces. The goal of this paper is to analyze the effects of non-uniform and asymmetric filling of a PHP on its thermal performance. In this paper, a 1D mass-spring-damper model is developed to predict the motion in a PHP. Also, a heat transfer model is developed. These two models are coupled to analyze the motion and performance of a PHP and can also take asymmetry into account. The model is compared with both numerical and experimental results from literature. Simulations show that including asymmetry into the system results in a good agreement with experimental results. Finally, four different modes of motion are observed: Oscillatory motion, translation, combined oscillatory-translation motion and no motion. Motion composition of a PHP as a function of heat input is studied. It is seen that translational and combined motion become dominant with increasing heat input. Also, the thermal performance of the PHP increases when the percentage of the translational and combined motion increases.
Détails
- Titre original : A mass-spring-damper model of a pulsating heat pipe with a non-uniform and asymmetric filling.
- Identifiant de la fiche : 30017142
- Langues : Anglais
- Source : Applied Thermal Engineering - vol. 91
- Date d'édition : 05/12/2015
- DOI : http://dx.doi.org/10.1016/j.applthermaleng.2015.06.014
Liens
Voir d'autres articles du même numéro (57)
Voir la source
Indexation
-
Experimental study of ethane pulsating heat pip...
- Auteurs : ZHAN J., CHEN X., JI Y., ZHENG P., DUAN W.
- Date : 01/2023
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 145
- Formats : PDF
Voir la fiche
-
Two-phase flow pattern based theoretical study ...
- Auteurs : WENG C. Y., LEU T. S.
- Date : 05/04/2016
- Langues : Anglais
- Source : Applied Thermal Engineering - vol. 98
Voir la fiche
-
Regenerative effect of heat exchanger in pulse ...
- Auteurs : GUO Z., ZHU S.
- Date : 10/2020
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
- Formats : PDF
Voir la fiche
-
Numerical analysis of fluid flow and heat trans...
- Auteurs : MOHANTA L., JOARDAR A., ESFORMES J. L., et al.
- Date : 09/07/2018
- Langues : Anglais
- Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Numerical study of thermal and flow characteris...
- Auteurs : HAN H., WANG S., SUN L., et al.
- Date : 02/2019
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 98
- Formats : PDF
Voir la fiche