Indexation 621.5 : Energie pneumatique. Machinerie et outils. Réfrigération
621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. MachinerieOuvrages de la bibliothèque en indexation 621.5 (488)
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Nick Weinzapfel, Auteur ; Farshid Sadeghi, Auteur ; Alexander Liebel, Auteur |Rolling contact fatigue of rolling element bearings is a statistical phenomenon that is strongly affected by the heterogeneous nature of the material microstructure. Heterogeneity in the microstructure is accompanied by randomly distributed weak[...]
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Lefeng Wang, Auteur ; Weibin Rong, Auteur ; Bing Shao, Auteur |The contact model for rough surfaces with power-law axisymmetric asperities in the presence of adhesion is developed. The extended JKR adhesive contact model for power-law axisymmetric asperities, denoted as JKR-n, developed by Zheng and Yu (200[...]
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Aphale, Chinar R., Auteur ; Schultz, William W., Auteur ; Ceccio, Steven L., Auteur |The aeration of an oil film flowing between the faces of two closely spaced circular plates (one stationary, and one rotating) is examined experimentally, numerically, and with an improved lubrication model. The gap between the plates is small c[...]
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A.M. Foster, Auteur ; T. Brown, Auteur ; A.J. Gigiel, Auteur |In the food industry there is often a need to both cook and cool food. Heating and cooling processes are rarely directly linked due to heat from refrigeration processes being insufficient to cook food. Therefore cooling and cooking is usually pr[...]
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Clito Afonso, Auteur ; Manuel Castro, Auteur |One component of the heat exchange rate in domestic refrigerators/freezers and of the other all types of refrigeration stores is the air infiltration due to the air exchange rate between inside and outside of the store trough the magnetic seals [...]
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Paulo J. Waltrich, Auteur ; Jader R. Barbosa Jr., Auteur ; Christian J.L. Hermes, Auteur |We investigate an alternative tube-fin evaporator design (accelerated flow evaporator, AFE) in which the air-side local heat transfer coefficient is increased due to a progressive reduction of the free-flow area. For a given heat transfer rate, [...]
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Mooyeon Lee, Auteur ; Taehyung Kang, Auteur ; Yongchan Kim, Auteur |The objective of this study is to investigate the air-side heat transfer characteristics of spiral-type circular fin-tube heat exchangers used as evaporators in household refrigerators. The j-factors of the tested heat exchangers under non-frost[...]
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Ping Zhang, Auteur ; P. S. Hrnjak, Auteur |The thermal-hydraulic performance in periodic frosting conditions is experimentally studied for the parallel-flow parallel-fin heat exchanger, henceforth referred to as a PF2 heat exchanger, a new style of heat exchanger that uses louvered bent [...]
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Matthew D. Determan, Auteur ; Srinivas Garimella, Auteur |This paper presents the results of an experimentally validated model for the prediction of local heat and mass transfer rates in a microchannel ammonia–water desorber. The desorber is an extremely compact 178 mm × 178 mm × 0.508 m tall component[...]
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José Roberto Simões-Moreira, Auteur |A Thermodynamic air-standard cycle was envisaged for Ranque–Hilsh (R–H) or Vortex Tubes to provide relevant Thermodynamic analysis and tools for setting operating limits according to the conservation laws of mass and energy, as well as the const[...]
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Zhiyong Yan, Auteur ; Yi Lu, Auteur ; Tiesheng Zheng, Auteur |Considering the freedom of pad tilting and pad translation along preload orientation, an analytical complete model, as well as mathematical method, which contains 2n+2 degrees of freedom, is presented for calculating the dynamical characteristi[...]
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R. K. Naffin, Auteur ; L. Chang, Auteur |This paper presents an analytical model for the basic design calculations of plain journal bearings. The model yields reasonable accuracy as compared with published numerical solutions under the same conditions. The principles and procedures of [...]
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Balaram Kundu, Auteur ; Dipankar Bhanja, Auteur |Enhancement of heat transfer rate through porous fins is one of the common choices nowadays. As the energy equation is highly nonlinear, researchers never concentrated on analyzing porous fins analytically. In the present study, an effort has be[...]
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A new thermodynamic property model is presented for trans-1,3,3,3-tetrafluoropropene (trans-CHFdouble bond; length as m-dashCHCF3, HFO-1234ze(E)) based upon available experimental data. This model is an application of the extended corresponding [...]
