Refrigeration system
Seleção de características em um sistema de refrigeração para identificar degradações em seus componentes / Characteristics selection in a refrigeration system to identify degradations in its components
... compression refrigeration systems are used to condition and store an extensive category of ...a refrigeration system that are necessary to characterize a ...
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PERFORMANCE STUDY OF A TWO STAGE SOLAR ADSORPTION REFRIGERATION SYSTEM
... A digital pyranometer with an accuracy of ±5 W/m 2 is placed near the solar collector to measure the instantaneous solar insolation. Pressure is measured during heating (desorption) of refrigerant i.e. condensing ...
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Dynamic Modeling of a Refrigeration System with an Internal Heat Exchanger and Dual Evaporators through Exergoeconomic Analysis
... The refrigeration system analyzed was a fully functional compression refrigerating machine with a freezer and cooler chamber kept at two different ...normal refrigeration chamber, and one calls it ...
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Influência de sistema de refrigeração não isotérmico sob parâmetros físico-químicos de Fragaria Vesca L/ Influence of non-isothermal refrigeration system under physicochemical parameters of Fragaria Vesca L
... Strawberry is a non-climatic pseudofruit and after harvest has a short shelf-life. Among the factors responsible for the quality loss of strawberries are the high metabolic activity and high susceptibility to microbial ...
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STUDY OF REFRIGERATION SYSTEM IMPACT ON VITAMIN C AND TOTAL POLYPHENOLS CONTENT AND MASS VARIATION OF Fragaria vesca L. FOR INNOVATIVE TECHNOLOGIES DEVELOPMENT
... ABSTRACT – Strawberry is a non-climacteric pseudofruit that has a short shelf life after harvest. Among the factors responsible for the strawberries quality loss are the high metabolic activity and high susceptibility to ...
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Monitoring device of ice formation in evaporator surface of refrigeration systems
... Abstract: In order to achieve lower temperatures than ambient air, whether for food cold storage purposes or thermal comfort, the evaporator coils generally operate at lower temperatures than the freezing point of water. ...
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J. Braz. Soc. Mech. Sci. & Eng. vol.33 número2
... are also required, generating performance data not only for the whole unit, but also for each one of the cycle components. The tests were carried out with a typical 450- liter „Combi‟ top-mount refrigerator designed for ...
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Characterization of refrigeration systems in the Portuguese food processing industry
... The refrigeration volume, type of refrigeration system, refrigerant, building and insulation materials of infrastructure and refrigeration chambers, average air temperature and humidity, and ...
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Combined Refrigeration Cycle for Thermal Power Plant Using Low Grade Waste Steam
... many refrigeration systems present for refrigeration and air condition ...air refrigeration, vapour compression, vapour absorption ...working refrigeration plant. By using such concept of ...
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Energetic and exergetic analyses of carbon dioxide transcritical refrigeration systems for hot climates
... transcritical refrigeration system especially for hot climates we should focus on the irreversibilities within the expansion ...the refrigeration system and/or the operation conditions for ...
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J. Braz. Soc. Mech. Sci. & Eng. vol.33 número2
... This refrigeration system, or simply chiller, was an adaptation from a self-contained air conditioning unit with ...the system was HCFC-22 ...acquisition system was implemented using the ...
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Análise de sistemas frigoríficos destinados a bebidas de pressão
... With the measured thermodynamic properties of the working fluid in several points of the refrigeration system, as well as with the measured power consumption of the compressor, shown in Fig.3, it was ...
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Influence of Cooling on the Glycolysis Rate and Development of PSE (Pale, Soft, Exudative) Meat
... the pre-mortem stress as the PSE meat incidence was observed at the beginning of the refrigeration and quantitatively noticed after the 6.50 h PM period, as observed in this experiment. Finally, a study carried ...
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Quím. Nova vol.37 número7
... A significant increase in ethanol content was observed in commer- cial samples stored at room temperature after 6 days, whereas those kept under refrigeration had an insignificant increase after 12 days (Figure ...
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Remoção de impurezas em sistemas de refrigeração industrial / Impure removal in industrial refrigeration systems
... AMMONIA REFRIGERATION), quanto maior a concentração de água na amônia, menor será a sua capacidade de refrigeração e dessa forma os equipamentos do sistema não removerão toda a carga térmica para a qual foram ...
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Experimental testing of a resistive sensor for monitoring frost formation in refrigeration systems
... [1] Tassou SA, Datta D, Marriott D. Frost formation and defrost control parameters for open multideck refrigerated food display cabinets, Journal of Power and Energy, 2000, 215:215-222. [2] Özkan DB, Özil E. Experimental ...
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Respiration rate of Golden papaya stored under refrigeration and with different
... Thirty fruits were stored in each chamber and kept under refrigeration at 13 °C and 85-95 % RH (CLI- MASUL, Brazil). The homogeneity of the atmospheres was maintained by a small fan positioned in the upper side of ...
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Acid and low temperature treatments on Salmonella Enteritidis inoculated in pork and its subsequent survival in simulated gastric fluid
... between exposure time and pH value of acid treatment and acid resistance in the SGF. Decrease in the population of the CCS3 strain was more substantial during the first 20 minutes of exposure. After this period, the ...
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Egg quality of laying hens in different conditions of storage, ages and housing densities
... in refrigeration showed lower values of this variable in older birds, indicating that regardless of the storage temperature, there is decrease of the albumen height (Table 1) and Haugh unit (Tables 2, 3, 4) with ...
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