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1. WO2009005366 - A CLOSED CIRCUIT VAPOUR COMPRESSION REFRIGERATIION SYSTEM AND A METHOD FOR OPERATING THE SYSTEM

Publication Number WO/2009/005366
Publication Date 08.01.2009
International Application No. PCT/NO2008/000246
International Filing Date 27.06.2008
Chapter 2 Demand Filed 28.04.2009
IPC
F25B 5/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
5Compression machines, plant, or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
02arranged in parallel
F25B 9/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
9Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point
CPC
F25B 1/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
1Compression machines, plant, or systems with non-reversible cycle
10with multi-stage compression
F25B 2309/061
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2309Gas cycle refrigeration machines
06Compression machines, plant or systems characterised by the refrigerant being carbon dioxide
061with cycle highest pressure above the supercritical pressure
F25B 2400/053
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2400General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
05Compression system with heat exchange between particular parts of the system
053between the storage receiver and another part of the system
F25B 2600/17
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2600Control issues
17by controlling the pressure of the condenser
F25B 2600/2513
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2600Control issues
25Control of valves
2513Expansion valves
F25B 2700/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
2700Sensing or detecting of parameters; Sensors therefor
04Refrigerant level
Applicants
  • SINVENT AS [NO]/[NO] (AllExceptUS)
  • JAKOBSEN, Arne [NO]/[NO] (UsOnly)
  • NEKSÅ, Petter [NO]/[NO] (UsOnly)
  • GIROTTO, Sergio [IT]/[IT] (UsOnly)
  • REKSTAD, Håvard [NO]/[NO] (UsOnly)
  • SKAUGEN, Geir [NO]/[NO] (UsOnly)
Inventors
  • JAKOBSEN, Arne
  • NEKSÅ, Petter
  • GIROTTO, Sergio
  • REKSTAD, Håvard
  • SKAUGEN, Geir
Agents
  • BRYN AARFLOT AS
Priority Data
2007 335629.06.2007NO
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A CLOSED CIRCUIT VAPOUR COMPRESSION REFRIGERATIION SYSTEM AND A METHOD FOR OPERATING THE SYSTEM
(FR) SYSTÈME FRIGORIFIQUE À COMPRESSION DE VAPEUR EN CIRCUIT FERMÉ ET SON PROCÉDÉ DE FONCTIONNEMENT
Abstract
(EN)
The present invention concerns a method for operating a closed circuit vapour compression refrigeration system. The system may operate with supercritical pressure on a high pressure side, and includes at least one compressor (1), at least one heat rejector (2), at least two in parallel connected heat absorbers (4), at least one variable expansion means (3) up flow of each heat absorber (4) and at least one control unit (8'') for controlling the variable expansion means (3), connected to a set of sensors (9', 15). The flow rate of the refrigerant through each of the variable expansion means (3), is controlled by the control unit (8''), coordinating the flow of refrigerant through each of the variable expansion means (3) to maintain a control parameter within a set range. Any surplus charge resulting from the control is buffered on a low pressure side of the system. Furthermore a refrigeration system based on a closed vapour compression circuit is described.
(FR)
La présente invention concerne un procédé de fonctionnement d'un système frigorifique à compression de vapeur en circuit fermé. Le système peut fonctionner à une pression supercritique sur un côté haute pression, et comporte au moins un compresseur (1), au moins un dispositif de rejet de chaleur (2), au moins deux absorbeurs de chaleur (4) raccordés en parallèle, au moins un moyen de dilatation variable (3) en amont de chaque absorbeur de chaleur (4) et au moins une unité de commande (8'') destinée à commander le moyen de dilatation variable (3), raccordée à un ensemble de capteurs (9', 15). Le débit du réfrigérant à travers chacun des moyens de dilatation variable (3) est commandé par l'unité de commande (8''), coordonnant l'écoulement de réfrigérant à travers chacun des moyens de dilatation variable (3) pour maintenir un paramètre de commande à l'intérieur d'une plage paramétrée. Toute charge excessive résultant de la commande est tamponnée sur un côté basse pression du système. De plus, la présente invention concerne un système frigorifique basé sur un circuit fermé de compression de vapeur.
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