Results 211 to 220 of about 1,076 (257)
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Low charge detection and diagnoses for non-critically charged refrigeration system
2017 IEEE International Conference on Electro Information Technology (EIT), 2017In this paper, a new set of algorithms has been developed to detect low charge fault for single compressor non-critically charged refrigeration system for both frozen and perishable goods. A mix of field units' data and experimental data were used to build the detection algorithms. Multiple detection algorithms were devised based on the operation modes.
Amro Quedan +3 more
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International Journal of Thermal Sciences, 2000
Abstract The performance of an automotive refrigeration system is dependent on the refrigerant charge level. Due to inevitable leaks in the system, the amount of refrigerant will decrease over time and thus ultimately reduce the system's performance.
Eric B. Ratts, J.Steven Brown
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Abstract The performance of an automotive refrigeration system is dependent on the refrigerant charge level. Due to inevitable leaks in the system, the amount of refrigerant will decrease over time and thus ultimately reduce the system's performance.
Eric B. Ratts, J.Steven Brown
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International Journal of Refrigeration, 2014
In this work the thermodynamic behavior of a household refrigerator was experimentally studied by simultaneously varying the refrigerant charge and the expansion restriction. A special charging device was designed and constructed for this purpose comprised of a cylinder, a load cell and two solenoid valves.
Claudio Melo
exaly +2 more sources
In this work the thermodynamic behavior of a household refrigerator was experimentally studied by simultaneously varying the refrigerant charge and the expansion restriction. A special charging device was designed and constructed for this purpose comprised of a cylinder, a load cell and two solenoid valves.
Claudio Melo
exaly +2 more sources
Design and optimisation of refrigerating systems with reduced refrigerant charge
2006Cet article présente les résultats d'un projet conduit conjointement par le Cemagref et le CEA-GREThE sur la conception d'installations frigorifigues à charge réduite pour le secteur du « petit » agroalimentaire. L'objectif est d'associer une réduction importante de la charge en frigorigène de ces installations à une bonne efficacité énergétique ...
Leducq, Denis +5 more
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International Journal of Refrigeration, 1991
Abstract A computer simulation of two-evaporator refrigerators charged with pure and mixed refrigerants operating on a Lorentz and Meutzner's cycle has been performed to determine possible substitutes for R12 with an improved energy efficiency. The results for pure fluids indicate that the coefficients of performance (COPs) and volumetric capacities ...
D.S Jung, R Radermacher
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Abstract A computer simulation of two-evaporator refrigerators charged with pure and mixed refrigerants operating on a Lorentz and Meutzner's cycle has been performed to determine possible substitutes for R12 with an improved energy efficiency. The results for pure fluids indicate that the coefficients of performance (COPs) and volumetric capacities ...
D.S Jung, R Radermacher
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Rationally based model for evaluating the optimal refrigerant mass charge in refrigerating machines
Energy Conversion and Management, 2001A rationally based algorithm was proposed to evaluate the optimal mass charge into refrigerating machines. The calculated results indicate that the system performance is strongly related to the refrigerant mass charge. In the early stage of the refrigerant charge process, a sharp rise of COP is observed. The COP reaches an optimal value for a specified
Naer Vjacheslav +2 more
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A STUDY ON THE REFRIGERANT CHARGE OF REFRIGERATOR-FREEZER
Proceeding of Energy and Environment, 1995, 2023GuoLiang Ding, ChunLu Zhang, ZhiJiu Chen
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2023
Inadequate refrigerant charges can affect the vapor compression refrigeration systems’ thermal and energy performance. To delve deeper into the subject, this study experimentally evaluated the performance of a domestic refrigerator operating at different refrigerant charges.
Pardo-cely, Diana +3 more
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Inadequate refrigerant charges can affect the vapor compression refrigeration systems’ thermal and energy performance. To delve deeper into the subject, this study experimentally evaluated the performance of a domestic refrigerator operating at different refrigerant charges.
Pardo-cely, Diana +3 more
openaire +1 more source
International Journal of Refrigeration, 2014
Abstract In the article a problem of refrigerant charge reduction of the transport refrigerating system with eutectic plate evaporator is analysed. Such system generates cold during the night, with the vehicle in the depot, and during the day it operates without access to electricity supply.
L. Vaitkus, V. Dagilis
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Abstract In the article a problem of refrigerant charge reduction of the transport refrigerating system with eutectic plate evaporator is analysed. Such system generates cold during the night, with the vehicle in the depot, and during the day it operates without access to electricity supply.
L. Vaitkus, V. Dagilis
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Refrigeration in the food industry. Electrical consumption and refrigerants charges
1998Le présent rapport rend compte d'une étude bibliographique ainsi que d'une étude de "terrain" sur la place du froid dans l'industrie agro-alimentaire. On décrit successivement les différents fluides frigorigènes mis en oeuvre dans chacun des secteurs des IAA, les consommations électriques totales et les consommations électriques du froid, quelques ...
Macchi, H. +3 more
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