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Dynamic model for th orbiting scroll based on the pressures in scroll chambers / Qiang, Jianguo in International journal of refrigeration, Vol. 36 N° 7 (Novembre 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1850-1865 Titre : Dynamic model for th orbiting scroll based on the pressures in scroll chambers : Part II: Investigations on scroll compressors and model validation Titre original : Modèle dynamique de la volute rotative fondé sur les pressions dans les chambres de compression des systèmes à spirale-Partie II: étude éffectuée sur les compresseurs à spirale et validation du modèle Type de document : texte imprimé Auteurs : Qiang, Jianguo, Auteur ; Peng, Bin, Auteur ; Zhenquan, Liu, Auteur Année de publication : 2014 Article en page(s) : pp. 1850-1865 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Scroll  compressor;  dynamics;  model;  investigation Résumé : This two-part study proposes a dynamic model for the orbiting scroll based on the pressures in scroll chambers. Part II investigates scroll compressors by using the dynamic model developped in this work to predicate the dynamic characteristics of the scroll compressors and the dynamic model is validated by comparing the predicted results with the experimental results of the powers of two air scroll compressors. This study utilizes two air scroll compressors and ten virtual scroll compressors to investigate the pressure distribution on the wrap surfaces of orbiting scrolls, the component forces and moments of orbiting scrolls, the overturning moment of the scroll mechanism, and the theoretical driving power of scroll compressors. The effects of scroll type (such as modified-wrap scroll, truncated-wrap scroll, multi-wrap scroll, odd-wrap scroll, and even-wrap scroll) on the dynamic performance of the scroll compressor based on the pressures in scroll chambers are also analyzed. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713000364 [article] Dynamic model for th orbiting scroll based on the pressures in scroll chambers = Modèle dynamique de la volute rotative fondé sur les pressions dans les chambres de compression des systèmes à spirale-Partie II: étude éffectuée sur les compresseurs à spirale et validation du modèle : Part II: Investigations on scroll compressors and model validation [texte imprimé] / Qiang, Jianguo, Auteur ; Peng, Bin, Auteur ; Zhenquan, Liu, Auteur . - 2014 . - pp. 1850-1865. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1850-1865 Mots-clés : Scroll  compressor;  dynamics;  model;  investigation Résumé : This two-part study proposes a dynamic model for the orbiting scroll based on the pressures in scroll chambers. Part II investigates scroll compressors by using the dynamic model developped in this work to predicate the dynamic characteristics of the scroll compressors and the dynamic model is validated by comparing the predicted results with the experimental results of the powers of two air scroll compressors. This study utilizes two air scroll compressors and ten virtual scroll compressors to investigate the pressure distribution on the wrap surfaces of orbiting scrolls, the component forces and moments of orbiting scrolls, the overturning moment of the scroll mechanism, and the theoretical driving power of scroll compressors. The effects of scroll type (such as modified-wrap scroll, truncated-wrap scroll, multi-wrap scroll, odd-wrap scroll, and even-wrap scroll) on the dynamic performance of the scroll compressor based on the pressures in scroll chambers are also analyzed. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713000364

Dynamic model for the orbiting scroll based on the pressures in scroll chambers / Qiang Jianguo in International journal of refrigeration, Vol. 36 N° 7 (Novembre 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1830–1849 Titre : Dynamic model for the orbiting scroll based on the pressures in scroll chambers : Part I: Analytical modeling Titre original : Modèle dynamique de la volute rotative fondé sur les pressions dans les chambres de compression des systèmes à spirale — Partie I : modélisation analytique Type de document : texte imprimé Auteurs : Qiang Jianguo, Auteur ; Bin Pen, Auteur ; Zhenquan, Liu, Auteur Année de publication : 2014 Article en page(s) : pp. 1830–1849 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Scroll  compressor;  Pressure;  Dynamics;  Modeling Résumé : This two-part work proposes a dynamic model for the orbiting scroll based on the pressures in the scroll chambers. In Part I, the scroll mechanism and characteristic polygon of the scroll compressor are defined, the geometry of the multi-wrap compressor is described, the modification and construction methods for one multi-wrap scroll are presented, and the dynamic model is developed. Thereafter, the overturning moment and theoretical driving power of the scroll mechanism are discussed. This dynamic model can predict the pressure distribution on wrap surfaces as well as the variations of the axial force, tangential force, radial force, overturning moment, self-rotation moment, and resistance moment. This dynamic model provides better understanding of scroll compressors and other types of scroll machines. The investigations on scroll compressors using this model and the model verification are reported in Part II. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713000273 [article] Dynamic model for the orbiting scroll based on the pressures in scroll chambers = Modèle dynamique de la volute rotative fondé sur les pressions dans les chambres de compression des systèmes à spirale — Partie I : modélisation analytique : Part I: Analytical modeling [texte imprimé] / Qiang Jianguo, Auteur ; Bin Pen, Auteur ; Zhenquan, Liu, Auteur . - 2014 . - pp. 1830–1849. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1830–1849 Mots-clés : Scroll  compressor;  Pressure;  Dynamics;  Modeling Résumé : This two-part work proposes a dynamic model for the orbiting scroll based on the pressures in the scroll chambers. In Part I, the scroll mechanism and characteristic polygon of the scroll compressor are defined, the geometry of the multi-wrap compressor is described, the modification and construction methods for one multi-wrap scroll are presented, and the dynamic model is developed. Thereafter, the overturning moment and theoretical driving power of the scroll mechanism are discussed. This dynamic model can predict the pressure distribution on wrap surfaces as well as the variations of the axial force, tangential force, radial force, overturning moment, self-rotation moment, and resistance moment. This dynamic model provides better understanding of scroll compressors and other types of scroll machines. The investigations on scroll compressors using this model and the model verification are reported in Part II. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713000273

Scroll profiles in scroll compressors / Qiang Jianguo in International journal of refrigeration, Vol. 36 N° 7 (Novembre 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1796-1808 Titre : Scroll profiles in scroll compressors : general criteria and error sensitivity Titre original : Profils de spirales dans des compresseurs à spirale : critères généraux et sensibilité à l'erreur Type de document : texte imprimé Auteurs : Qiang Jianguo, Auteur ; Zhenquan, Liu, Auteur Année de publication : 2014 Article en page(s) : pp. 1796-1808 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Scroll  compressor;  Geometry;  Surface Résumé : General criteria for scroll profiles that include the evolute, orbiting movement, differential, and integrative conditions are proposed. The profile error sensitivity is defined based on the composite meshing error and meshing clearances of the scroll profiles. A case study on regular polygon involutes as scroll profiles indicates that the general criteria are satisfied when the edge number of the two involutes of a regular polygon is equal to the common multiple of the doubled number of scroll wraps on one scroll. The profile error sensitivity of the involutes of a base circle is shown to be controlled by the radial machining error, which is extremely low. The involute of a base circle is the ideal profile for a scroll compressor because it contains low error sensitivity and more stable dynamic characteristics. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002648 [article] Scroll profiles in scroll compressors = Profils de spirales dans des compresseurs à spirale : critères généraux et sensibilité à l'erreur : general criteria and error sensitivity [texte imprimé] / Qiang Jianguo, Auteur ; Zhenquan, Liu, Auteur . - 2014 . - pp. 1796-1808. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1796-1808 Mots-clés : Scroll  compressor;  Geometry;  Surface Résumé : General criteria for scroll profiles that include the evolute, orbiting movement, differential, and integrative conditions are proposed. The profile error sensitivity is defined based on the composite meshing error and meshing clearances of the scroll profiles. A case study on regular polygon involutes as scroll profiles indicates that the general criteria are satisfied when the edge number of the two involutes of a regular polygon is equal to the common multiple of the doubled number of scroll wraps on one scroll. The profile error sensitivity of the involutes of a base circle is shown to be controlled by the radial machining error, which is extremely low. The involute of a base circle is the ideal profile for a scroll compressor because it contains low error sensitivity and more stable dynamic characteristics. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713002648