System and method of mechanical compression refrigeration based on two-phase ejector
a mechanical compression refrigeration and two-phase ejector technology, applied in the field of mechanical compression refrigeration systems and methods, can solve the problems of increasing the overall cost of energy consumption, and reducing the efficiency of existing refrigeration cycles
Pending Publication Date: 2022-01-27
HER MAJESTY THE QUEEN & RIGHT OF CANADA REPRESENTED BY THE MIN OF NATURAL RESOURCES
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Benefits of technology
The objective of this patent is to increase the efficiency of refrigeration cycles in refrigeration systems. It does this by using a two-phase ejector that is activated by potential energy and excess heat. This assists the compressor in the system and helps to recover energy for use in the process. Overall, this improves the efficiency of the refrigeration system.
Problems solved by technology
At the same time, the demand for increased comfort (for example, heating and air-conditioning) or production of goods (for example, Agro-food industry), however, undermines these achievements by giving rise to demands for additional energy consumption.
As a result, the overall costs relating to energy consumption increase.
Refrigeration, or more generally, air conditioning, are no longer an option but a requirement for daily consumptions, given the increasing demand from consumers.
However, they are complex, bulky and are not suitable alternatives to mechanical compression.
Mechanical based compression refrigeration becomes increasingly complex and consumes increasingly more electricity (noble energy) at high and / or low temperature working conditions.
Method used
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[0128]Mechanical refrigeration is the utilization of mechanical components arranged in a “refrigeration system” for the purpose of transferring heat. The refrigeration cycle is based on the well-known physical principle that a liquid evaporating into a gas extracts heat from the surrounding area. The refrigeration cycle is to remove unwanted heat from one place and discharge it into another. To accomplish this, the refrigerant is pumped through a closed refrigeration system.
[0129]Refrigerants are chemical compounds that are alternately compressed and condensed into a liquid and then permitted to expand and to evaporate into a vapor or gas as they are pumped through the mechanical refrigeration system to cycle. Refrigerants evaporate at much lower temperatures than water, which permits them to extract heat at lower temperature than water.
[0130]Two different pressures exist in the cycle—the evaporating or low pressure in the “low side,” and the condensing, or high pressure, in the “hi...
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The present invention discloses the use of two-phase ejector(s) activated by pressurized refrigerant, said two-phase ejector(s) are strategically located in the cycle of the refrigeration system so as to provide part of the compression effect required for the refrigeration load, thereby relieving the conventional mechanical compressor from part of its duty, hence increasing the overall cycle efficiency of the refrigeration system.
Description
FIELD OF THE INVENTION[0001]The invention relates to system and method of mechanical compression refrigeration. In particular, the present invention discloses the use of a two-phase ejector to improve efficiency and stability of mechanical compression refrigeration system.BACKGROUND OF THE INVENTION[0002]In recent years, technological advancements in the field of equipment optimization and controls have substantially reduced energy consumption. At the same time, the demand for increased comfort (for example, heating and air-conditioning) or production of goods (for example, Agro-food industry), however, undermines these achievements by giving rise to demands for additional energy consumption. As a result, the overall costs relating to energy consumption increase.[0003]Estimations by research carried out by Natural Resources Canada indicate that ten percent of total energy consumption in commercial, institutional and industrial activities relates to refrigeration. Refrigeration, or m...
Claims
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Login to View More IPC IPC(8): F25B1/06F25B41/40
CPCF25B1/06F25B41/40F25B2400/19F25B2400/16F25B2400/13F25B1/10F25B40/00F25B2400/0403F25B2600/2501
Inventor AIDOUN, ZINEAMEUR, KHALEDBADACHE, MESSAOUD
Owner HER MAJESTY THE QUEEN & RIGHT OF CANADA REPRESENTED BY THE MIN OF NATURAL RESOURCES