| Titre : | Performance analysis of multi-stage thermoelectric coolers (2012) |
| Titre original : | Analyse de la performance des refroidisseurs thermoélectriques multiétagés |
| Auteurs : | G. Karimi, Auteur ; J.R. Culham, Auteur ; V. Kazerouni, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 34 N° 8, Décembre 2011) |
| Article en page(s) : | pp. 2129–2135 |
| Note générale : | Génie mécanique |
| Langues : | Anglais |
| Tags : | Thermoelectricity Refrigerator Cooler Heat flux Thermal analysis Performance |
| Résumé : | Multi-stage thermoelectric coolers offer larger temperature differences between heat source and heat sink than single-stage thermoelectric coolers. In this paper, a pyramid-type multi-stage cooler is analyzed, focusing on the importance of maximum attainable target heat flux and overall coefficient of performance, COP. Having considered the COP and the thermal resistance of a heat sink as key parameters in the design of a multi-stage thermoelectric cooler, analytical formulas for COP and heat sink thermal resistance versus working electrical current are derived. For a fixed cooling target heat flux, the ratio of the heat sink thermal resistance to the respective single-stage value and the attainable COP in a cascaded cooler are determined as a function of the number of stages. Numerical simulations clearly indicate that the thermal resistance of the hot side heat sink is the controlling factor in determining the overall performance of a multi-stage thermoelectric cooler. |
| ISSN : | 0140-7007 |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700711001216 |
