International journal of refrigeration, Vol. 35 N° 1. International journal of refrigeration - Janvier 2012
| Titre : | International journal of refrigeration, Vol. 35 N° 1. International journal of refrigeration - Janvier 2012 |
| Type de document : | Bulletin |
| Paru le : | 19/09/2012 |
Dépouillements
Article : texte imprimé
Carbonaceous materials and carbon matrix composites (CAMCs) have potential to be used in heat exchangers and heat sinks for a number of thermal management applications related to HVAC&R systems, especially in high-temperature and corrosive envir[...]
Article : texte imprimé
Kitti Nilpueng, Auteur ;
Somchai Wongwises, Auteur
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A short-tube orifice is a kind of an expansion device. The advantages of a short-tube orifice are simplicity, low cost, and low starting torque of the compressor as the pressures across the short-tube orifice equalise during the off-cycle. The t[...]
Article : texte imprimé
Won Jae Yoon, Auteur ;
Kookjeong Seo, Auteur ;
Hyun Joon Chung, Auteur
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A Lorenz–Meutzner cycle (called the “LM cycle”) for a domestic refrigerator-freezer (RF) has energy saving potential because of lower entropy generation in the fresh food compartment (R)-evaporator and lower compression ratio due to higher mean [...]
Article : texte imprimé
Bilal Ahmed Qureshi, Auteur ;
Syed M. Zubair, Auteur
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Performance characteristics due to use of different refrigerant combinations in vapor compression cycles with dedicated mechanical sub-cooling are investigated. For scratch designs, R134a used in both cycles produced the best results in terms of[...]
Article : texte imprimé
Jaehyeok Heo, Auteur ;
Hoon Kang, Auteur ;
Yongchan Kim, Auteur
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The refrigerant injection technique has rapidly developed in recent years due to its outstanding performance at low ambient temperatures, and various control methods for a heat pump with injection have been presented. However, most studies on cy[...]
Article : texte imprimé
Yinhai Zhu, Auteur ;
Peixue Jiang, Auteur
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A refrigeration system was developed which combines a basic vapor compression refrigeration cycle with an ejector cooling cycle. The ejector cooling cycle is driven by the waste heat from the condenser in the vapor compression refrigeration cycl[...]
Article : texte imprimé
Paiguy Armand Ngouateu Wouagfack, Auteur ;
Réné Tchinda, Auteur
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The new thermo-ecological performance optimization of an absorption heat pump operating between three temperature levels with the losses of heat resistance, internal irreversibility and leakage is analyzed by taking the ecological coefficient of[...]
Article : texte imprimé
Abdul Khaliq, Auteur ;
Basant K. Agrawal, Auteur ;
Rajesh Kumar, Auteur
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In the proposed cogeneration cycle, a LiBr–H2O absorption refrigeration system is employed to the combined power and ejector refrigeration system which uses R141b as a working fluid. Estimates for irreversibilities of individual components of th[...]
Article : texte imprimé
A 2D hybrid model of the fluid flow and heat transfer in a reciprocating active magnetic regenerator
Pablo A. Oliveira, Auteur ;
Paulo V. Trevizoli, Auteur ;
Jader R. Barbosa Jr., Auteur
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This paper evaluates the thermal behavior of a magnetic-Brayton-based parallel plate reciprocating active magnetic regenerator (AMR). A time-dependent, 2D model of the fluid flow and the coupled heat transfer between the working fluid and the so[...]
Article : texte imprimé
H. R. E. H. Bouchekara, Auteur ;
A. Kedous-Lebouc, Auteur ;
J.-P. Yonnet, Auteur
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Magnetic refrigeration (MR) based on the magnetocaloric effect (MCE) is a prime candidate for the next generation of cooling systems. The essential components of magnetic refrigeration are the magnetic field generator and the magnetocaloric mate[...]
Article : texte imprimé
Hiroyuki Kumano, Auteur ;
Tetsuo Hirata, Auteur ;
Yosuke Hagiwara, Auteur
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The effect of storage on flow and heat transfer characteristics of ice slurry was investigated experimentally. After ice slurry had been stored in the storage tank, variations in ice particle size were measured using a microscope, and diameter d[...]
Article : texte imprimé
Koji Matsumoto, Auteur ;
Musashi Akaishi, Auteur ;
Yoshikazu Teraoka, Auteur
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Ice adhesion to a cooling solid surface occurs in many situations, and it causes many serious problems that can lead to economic losses. Therefore, it is necessary to clarify the mechanism of ice adhesion to a cooling surface. In past studies, t[...]
Article : texte imprimé
Y.T. Ge, Auteur ;
S.A. Tassou, Auteur
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The CO2 refrigerant is widely applied in retail refrigeration systems to replace HFC fluids such as R404A, but its system performance requires further improvement. One feasible method would be to pinpoint the matching components of the system, i[...]
Article : texte imprimé
Aboozar Khajeh, Auteur ;
Hamid Modarress, Auteur
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In this work, quantitative structure-property relationship (QSPR) models for prediction of surface tension of 224 refrigerant compounds on the basis of their molecular structures were developed by using genetic function approximation (GFA) and a[...]
Article : texte imprimé
Investigation on capacity matching in liquid desiccant and heat pump hybrid air-conditioning systems
Xiaofeng Niu, Auteur ;
Fu Xiao, Auteur ;
Zhenjun Ma, Auteur
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Liquid desiccant and heat pump (LDHP) hybrid air-conditioning system provides a promising independent air dehumidification solution. Capacity matching among the four major heat and mass transfer components, i.e. dehumidifier, regenerator, evapor[...]
Article : texte imprimé
Ehsan Moallem, Auteur ;
Sankar Padhmanabhan, Auteur ;
Lorenzo Cremaschi, Auteur
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Frost formation on a louvered fin microchannel heat exchanger was experimentally investigated in this paper with the aim of determining the dominant factors affecting the time of frosting and frost growth rate. A novel methodology was developed [...]
Article : texte imprimé
Björn Margeirsson, Auteur ;
Hélène L. Lauzon, Auteur ;
Halldór Pálsson, Auteur
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A study was carried out to evaluate temperature variation and quality deterioration of packaged cod fillets as influenced by the box type used and their position on pallets under dynamic temperature storage. Storage life of thermally abused fill[...]
Article : texte imprimé
D. F. Barbin, Auteur ;
L.C. Neves Filho, Auteur ;
V. Silveira Júnior, Auteur
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Freezing process efficiency is affected by the required conditions to keep the air flow and temperature at the product surface. The objective of this work was to obtain results on comparative studies with air exhaustion and blowing using an expe[...]
Article : texte imprimé
In some recent papers a few approximations to the implicit Nikuradse–Prandtl–Karman equation were shown. The Nikuradse–Prandtl–Karman equation for calculation of the hydraulic friction factor is valid for the hydraulically smooth regime of turbu[...]
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