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Indirect measurement of hermetic compressor speed through externally-measurable quantities / Miguel B. Demay in International journal of refrigeration, Vol. 34 N° 5 (Août 2011) 

Public ISBD [article]  in International journal of refrigeration > Vol. 34 N° 5 (Août 2011) . - pp. 1268-1275 Titre : Indirect measurement of hermetic compressor speed through externally-measurable quantities Titre original : Mesure indirecte de la vitesse d'un compresseur hermétique à l'aide de quantités mesurables de façon externe Type de document : texte imprimé Auteurs : Miguel B. Demay, Auteur ; Carlos A. Flesch, Auteur ; André P. Rosa, Auteur Année de publication : 2011 Article en page(s) : pp. 1268-1275 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Hermetic  compressor  Speed  Measurement  Automation Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Compressor speed is a very important parameter when testing hermetic compressors. Its measurement is routine in the refrigerator compressor industry, either to evaluate parameters such as capacity, power consumption, and coefficient of performance (COP), or as an indicator of steady-state operation. However, there are some difficulties associated with measuring the speed of hermetic compressors, mainly concerning uncertainty and time constraints. This study presents some hermetic compressor speed measurement techniques, based on quantities that can be measured outside a compressor shell. In this study it was possible to measure compressor speeds through these techniques with an uncertainty of less than 1 rpm in a measurement time of 5 s. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711000788 [article] Indirect measurement of hermetic compressor speed through externally-measurable quantities = Mesure indirecte de la vitesse d'un compresseur hermétique à l'aide de quantités mesurables de façon externe [texte imprimé] / Miguel B. Demay, Auteur ; Carlos A. Flesch, Auteur ; André P. Rosa, Auteur . - 2011 . - pp. 1268-1275. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 34 N° 5 (Août 2011) . - pp. 1268-1275 Mots-clés : Hermetic  compressor  Speed  Measurement  Automation Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Compressor speed is a very important parameter when testing hermetic compressors. Its measurement is routine in the refrigerator compressor industry, either to evaluate parameters such as capacity, power consumption, and coefficient of performance (COP), or as an indicator of steady-state operation. However, there are some difficulties associated with measuring the speed of hermetic compressors, mainly concerning uncertainty and time constraints. This study presents some hermetic compressor speed measurement techniques, based on quantities that can be measured outside a compressor shell. In this study it was possible to measure compressor speeds through these techniques with an uncertainty of less than 1 rpm in a measurement time of 5 s. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711000788