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Experimental and simulation studies on the performance of standing wave thermoacoustic prime mover for pulse tube refrigerator / Bharatbhushan V. Kamble in International journal of refrigeration, Vol. 36 N° 8 (Décembre 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 8 (Décembre 2013) . - pp. 2410–2419 Titre : Experimental and simulation studies on the performance of standing wave thermoacoustic prime mover for pulse tube refrigerator Titre original : Etudes expérimentales et de simulation sur les performances des ondes stationnaires d'une force motrice thermoacoustique pour le réfrigérateur à tube à pulsations Type de document : texte imprimé Auteurs : Bharatbhushan V. Kamble, Auteur ; Biju T. Kuzhiveli, Auteur ; S. Kasthurirengan, Auteur Année de publication : 2014 Article en page(s) : pp. 2410–2419 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Standing-wave;  thermoacoustics;  prime  mover;  deltaEc;  cryocoolers;  simulation Résumé : The thermoacoustic prime mover (TAPM) has gained considerable attention as a pressure wave generator to drive pulse tube refrigerator (PTR) due to no moving parts, reasonable efficiency, use of environmental friendly working fluids etc. To drive PTCs, lower frequencies (f) with larger pressure amplitudes (ΔP) are essential, which are affected by geometric and operating parameters of TAPM as well as working fluids. For driving PTRs, a twin standing wave TAPM is built and studied by using different working fluids such as helium, argon, nitrogen and their binary mixtures. Simulation results of DeltaEc are compared with experimental data wherever possible. DeltaEc predicts slightly increased resonance frequencies, but gives larger ΔP and lower temperature difference ΔT across stack. High mass number working fluid leads to lower frequency with larger ΔP, but higher ΔT. Studies indicate that the binary gas mixture of right composition with lower ΔT can be arrived at to drive TAPM of given geometry. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002053 [article] Experimental and simulation studies on the performance of standing wave thermoacoustic prime mover for pulse tube refrigerator = Etudes expérimentales et de simulation sur les performances des ondes stationnaires d'une force motrice thermoacoustique pour le réfrigérateur à tube à pulsations [texte imprimé] / Bharatbhushan V. Kamble, Auteur ; Biju T. Kuzhiveli, Auteur ; S. Kasthurirengan, Auteur . - 2014 . - pp. 2410–2419. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 8 (Décembre 2013) . - pp. 2410–2419 Mots-clés : Standing-wave;  thermoacoustics;  prime  mover;  deltaEc;  cryocoolers;  simulation Résumé : The thermoacoustic prime mover (TAPM) has gained considerable attention as a pressure wave generator to drive pulse tube refrigerator (PTR) due to no moving parts, reasonable efficiency, use of environmental friendly working fluids etc. To drive PTCs, lower frequencies (f) with larger pressure amplitudes (ΔP) are essential, which are affected by geometric and operating parameters of TAPM as well as working fluids. For driving PTRs, a twin standing wave TAPM is built and studied by using different working fluids such as helium, argon, nitrogen and their binary mixtures. Simulation results of DeltaEc are compared with experimental data wherever possible. DeltaEc predicts slightly increased resonance frequencies, but gives larger ΔP and lower temperature difference ΔT across stack. High mass number working fluid leads to lower frequency with larger ΔP, but higher ΔT. Studies indicate that the binary gas mixture of right composition with lower ΔT can be arrived at to drive TAPM of given geometry. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002053