International journal of refrigeration, Vol. 34 N° 5. International journal of refrigeration - Août 2011
| Titre : | International journal of refrigeration, Vol. 34 N° 5. International journal of refrigeration - Août 2011 |
| Type de document : | Bulletin |
| Paru le : | 20/09/2011 |
Dépouillements
Article : texte imprimé
Microchannel component technology for system-wide application in ammonia/water absorption heat pumps
Srinivas Garimella, Auteur ;
Matthew D. Determan, Auteur ;
J. Mark Meacham, Auteur
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A novel miniaturization technology for binary-fluid heat and mass exchange was developed and numerous components were fabricated for demonstration as different parts of an ammonia/water absorption heat pump. Short lengths of microchannel tubes a[...]
Article : texte imprimé
Matthew D. Determan, Auteur ;
Srinivas Garimella, Auteur
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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[...]
Article : texte imprimé
Nae-Hyun Kim, Auteur ;
Do-Young Kim, Auteur ;
Ho-Won Byun, Auteur
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The refrigerant R-134a flow distribution was experimentally studied for a round header/ten flat tube test section simulating a brazed aluminum heat exchanger. Three different inlet configurations (parallel, normal, vertical) were investigated. T[...]
Article : texte imprimé
Gunda Mader, Auteur ;
Georg P.F. Fösel, Auteur ;
Lars F.S. Larsen, Auteur
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The development of control algorithms for refrigeration systems requires models capable of simulating transient behavior with sensible computational time and effort. The most pronounced dynamics in these systems are found in the condenser and th[...]
Article : texte imprimé
Martin Ryhl Kærn, Auteur ;
Wiebke Brix, Auteur ;
Brian Elmegaard, Auteur
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Compensation of flow maldistribution in multi-channel fin-and-tube evaporators for residential air-conditioning is investigated by numerical modeling. The considered sources of maldistribution are distribution of the liquid and vapor phases in t[...]
Article : texte imprimé
Xueqiang Dong, Auteur ;
Maoqiong Gong, Auteur ;
Jun Shen, Auteur
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The VLE data for the binary system of R1234ze(E) + R290 were measured with a recirculation method at four temperatures (258.150, 263.150, 273.150 and 283.150 K). The measured uncertainties of the temperature, pressure, and compositions are ±5 mK[...]
Article : texte imprimé
Ivan Glaznev, Auteur ;
Ilya Ponomarenko, Auteur ;
Sergei Kirik, Auteur
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Each specific cycle for adsorptive heat transformation (AHT) requires appropriate adsorbent which ensures the best realization of precisely this cycle. This paper addresses a synthesis of novel composite sorbents “CaCl2 confined to a meso-struct[...]
Article : texte imprimé
Ghassem Heidarinejad, Auteur ;
Hadi Pasdarshahri, Auteur
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In this paper, a desiccant-evaporative cooling system introduced and applied to a Ventilation and Makeup mode operating cycle. Desiccant part of hybrid cooling system is a heat driven component and effective in area where the use of thermal ener[...]
Article : texte imprimé
J. Xu, Auteur ;
R.G. Oliveira, Auteur ;
R.Z. Wang, Auteur
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A resorption system with simultaneous cold and heat production was studied. The heat produced could be used for sanitary or process purposes, or to drive another heat-powered machine. The resorption reactors had MnCl2 and NH4Cl as reactant (whic[...]
Article : texte imprimé
Miguel B. Demay, Auteur ;
Carlos A. Flesch, Auteur ;
André P. Rosa, Auteur
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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 performan[...]
Article : texte imprimé
A. Subiantoro, Auteur ;
K.T. Ooi, Auteur
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The effects of the fluid friction acting on the endfaces of the revolving vane (RV) machine, where the cylinder rotates together with the rotor, are investigated analytically with closed form solutions. It was found that the endface losses of th[...]
Article : texte imprimé
Qubo Li, Auteur ;
Janusz Piechna, Auteur ;
Müller, Norbert, Auteur
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This paper investigates the thermodynamic potential of using multi-stage variable speed counter rotating axial impellers as part of a water chiller system to compress water vapor (R718) as refrigerant. For this multi-stage compressor a modified [...]
Article : texte imprimé
A.M. Foster, Auteur ;
T. Brown, Auteur ;
A.J. Gigiel, Auteur
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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[...]
Article : texte imprimé
F. De Rossi, Auteur ;
A.W. Mauro, Auteur ;
M. Musto, Auteur
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Long-period food storage vertical freezers are small cooling capacity appliances usually working with HC. The particular system architecture and the small thermal load allow the use of natural draft wires and tube heat exchangers with large heat[...]
Article : texte imprimé
Salah Selmi, Auteur ;
Zouhour Limam, Auteur ;
Irineu Batista, Auteur
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Sardine oil released during sardine mince preparation showed good quality with a low hydroperoxide content, excellent color and high content (19.23%) of eicosapentaenoic acid. Recovered sardine oil was stored at two different temperatures (+4 °C[...]
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