Documents disponibles écrits par cet auteur

An analysis on a two-stage cascade thermoelectric cooler for electronics cooling applications / Ming Ma in International journal of refrigeration, Vol. 38 (Février 2014) 

Public ISBD [article]  in International journal of refrigeration > Vol. 38 (Février 2014) . - pp. 352–357 Titre : An analysis on a two-stage cascade thermoelectric cooler for electronics cooling applications Titre original : Analyse d'un refroidisseur thermoélectrique biétagé en cascade pour des applications de refroidissement de l'électronique Type de document : texte imprimé Auteurs : Ming Ma, Auteur ; Jianlin Yu, Auteur Année de publication : 2014 Article en page(s) : pp. 352–357 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Thermoelectric  cooler;  Two-stage;  Analytical  model;  Electronics  cooling Résumé : This paper presents a comprehensive analysis of a novel two-stage cascade thermoelectric cooler (TTEC). The novel TTEC may be simply formed by joining short-legged thermoelectric couples in cascade, which has advantages of no interstage electrical insulating materials, compact and easy-fabricated structure, and using only one operating power. An analytical model taking into account the allocation of the total input current between the two stages of the TTEC is developed and the performance characteristics are investigated in detail. Especially, the allocation ratio of thermoelectric couple leg length which maximizes the TTEC COP at a specified condition are discussed. The analysis results indicate that such a cascade TTEC can greatly improve the operating temperature difference and be in theory more efficient than a single-stage thermoelectric cooler under most circumstances. It is also revealed that the allocation ratio of thermoelectric couple leg length plays an important role in determining TTEC thermal performance. Overall, the presented TTEC may show its promise in the future electronics cooling applications. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002259 [article] An analysis on a two-stage cascade thermoelectric cooler for electronics cooling applications = Analyse d'un refroidisseur thermoélectrique biétagé en cascade pour des applications de refroidissement de l'électronique [texte imprimé] / Ming Ma, Auteur ; Jianlin Yu, Auteur . - 2014 . - pp. 352–357. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 38 (Février 2014) . - pp. 352–357 Mots-clés : Thermoelectric  cooler;  Two-stage;  Analytical  model;  Electronics  cooling Résumé : This paper presents a comprehensive analysis of a novel two-stage cascade thermoelectric cooler (TTEC). The novel TTEC may be simply formed by joining short-legged thermoelectric couples in cascade, which has advantages of no interstage electrical insulating materials, compact and easy-fabricated structure, and using only one operating power. An analytical model taking into account the allocation of the total input current between the two stages of the TTEC is developed and the performance characteristics are investigated in detail. Especially, the allocation ratio of thermoelectric couple leg length which maximizes the TTEC COP at a specified condition are discussed. The analysis results indicate that such a cascade TTEC can greatly improve the operating temperature difference and be in theory more efficient than a single-stage thermoelectric cooler under most circumstances. It is also revealed that the allocation ratio of thermoelectric couple leg length plays an important role in determining TTEC thermal performance. Overall, the presented TTEC may show its promise in the future electronics cooling applications. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002259

Performance optimization of an irreversible Carnot refrigerator with finite mass flow rate / Jianlin Yu in International journal of refrigeration, Vol. 34 N° 2 (Mars 2011) 

Public ISBD [article]  in International journal of refrigeration > Vol. 34 N° 2 (Mars 2011) . - pp. 567-572 Titre : Performance optimization of an irreversible Carnot refrigerator with finite mass flow rate Titre original : Optimisation de la performance d’un réfrigérateur Carnot irréversible avec un débit massique fini Type de document : texte imprimé Auteurs : Jianlin Yu, Auteur ; Yuanyuan Zhou, Auteur ; Ying Liu, Auteur Année de publication : 2011 Article en page(s) : pp. 567-572 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Carnot  Refrigerator  Irreversible  Thermodynamics  Optimization Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The present study develops a theoretical model for the optimization of an irreversible Carnot refrigerator subject to a constraint of finite mass flow rate, which includes internal as well as external irreversibilities. By introducing two dimensionless parameters as indicative of the mass flow rates for the refrigerator, the new model allows detailed analyses on the finite mass flow rate allocation problem of working fluids among the hot- and cold-side heat exchangers of Carnot refrigerators. The analytical solutions of the maximum coefficient of performance (COP) for irreversible Carnot refrigerators are obtained under the equivalent of the finite-flow rate constraint. Furthermore, the influences of major parameters on the maximum COP and the corresponding mass flow rate allocation are examined and shown by numerical examples. The obtained results may provide a theoretical guidance for the optimal design and operation of real refrigerators. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710002483 [article] Performance optimization of an irreversible Carnot refrigerator with finite mass flow rate = Optimisation de la performance d’un réfrigérateur Carnot irréversible avec un débit massique fini [texte imprimé] / Jianlin Yu, Auteur ; Yuanyuan Zhou, Auteur ; Ying Liu, Auteur . - 2011 . - pp. 567-572. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 34 N° 2 (Mars 2011) . - pp. 567-572 Mots-clés : Carnot  Refrigerator  Irreversible  Thermodynamics  Optimization Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The present study develops a theoretical model for the optimization of an irreversible Carnot refrigerator subject to a constraint of finite mass flow rate, which includes internal as well as external irreversibilities. By introducing two dimensionless parameters as indicative of the mass flow rates for the refrigerator, the new model allows detailed analyses on the finite mass flow rate allocation problem of working fluids among the hot- and cold-side heat exchangers of Carnot refrigerators. The analytical solutions of the maximum coefficient of performance (COP) for irreversible Carnot refrigerators are obtained under the equivalent of the finite-flow rate constraint. Furthermore, the influences of major parameters on the maximum COP and the corresponding mass flow rate allocation are examined and shown by numerical examples. The obtained results may provide a theoretical guidance for the optimal design and operation of real refrigerators. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700710002483