DK214690A - PROCEDURE FOR REGULATING A STEP COMPRESSION CYCLE AND APPARATUS FOR EXERCISING THE PROCEDURE - Google Patents

PROCEDURE FOR REGULATING A STEP COMPRESSION CYCLE AND APPARATUS FOR EXERCISING THE PROCEDURE Download PDF

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Publication number
DK214690A
DK214690A DK214690A DK214690A DK214690A DK 214690 A DK214690 A DK 214690A DK 214690 A DK214690 A DK 214690A DK 214690 A DK214690 A DK 214690A DK 214690 A DK214690 A DK 214690A
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DK
Denmark
Prior art keywords
enthalpy
procedure
refrigerant
pressure
varying
Prior art date
Application number
DK214690A
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Danish (da)
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DK167985B1 (en
DK214690D0 (en
Inventor
Gustav Lorentzen
Original Assignee
Sinvent As
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Application filed by Sinvent As filed Critical Sinvent As
Publication of DK214690D0 publication Critical patent/DK214690D0/en
Publication of DK214690A publication Critical patent/DK214690A/en
Application granted granted Critical
Publication of DK167985B1 publication Critical patent/DK167985B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B45/00—Arrangements for charging or discharging refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General 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
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0415—Refrigeration circuit bypassing means for the receiver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General 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
    • F25B2400/16—Receivers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2501—Bypass valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

Regulation of specific enthalpy at the evaporator inlet is performed by deliberate use of the pressure and/or temperature before throttling for capacity control. Capacity is controlled by varying the refrigerant enthalpy difference in the evaporator, by changing the specific enthalpy of the refrigerant before throttling. In the super-critical state, this can be done by varying the pressure and temperature independently of one another. In the preferred embodiment, this modulation of specific enthalpy is carried out by varying the pressure before throttling. The refrigerant is cooled down as far as it is feasible by means of the available cooling medium, and the pressure is regulated to give the required enthalpy. Another embodiment involves modulation of enthalpy by variation of the refrigerant temperature before throttling. This is done by controlling the heat emission from the device. <IMAGE>
DK214690A 1989-01-09 1990-09-07 PROCEDURE FOR REGULATING A COMPRESSION COOLING SYSTEM AND HEATING / COOLING DEVICE FOR EXERCISING THE PROCEDURE DK167985B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NO890076 1989-01-09
NO890076A NO890076D0 (en) 1989-01-09 1989-01-09 AIR CONDITIONING.
PCT/NO1989/000089 WO1990007683A1 (en) 1989-01-09 1989-09-06 Trans-critical vapour compression cycle device
NO8900089 1989-09-06

Publications (3)

Publication Number Publication Date
DK214690D0 DK214690D0 (en) 1990-09-07
DK214690A true DK214690A (en) 1990-11-06
DK167985B1 DK167985B1 (en) 1994-01-10

Family

ID=19891609

Family Applications (1)

Application Number Title Priority Date Filing Date
DK214690A DK167985B1 (en) 1989-01-09 1990-09-07 PROCEDURE FOR REGULATING A COMPRESSION COOLING SYSTEM AND HEATING / COOLING DEVICE FOR EXERCISING THE PROCEDURE

Country Status (10)

Country Link
EP (1) EP0424474B2 (en)
JP (1) JPH0718602B2 (en)
KR (1) KR0126550B1 (en)
DE (2) DE68908181T3 (en)
DK (1) DK167985B1 (en)
NO (2) NO890076D0 (en)
PL (1) PL285966A1 (en)
RU (1) RU2039914C1 (en)
UA (1) UA27758C2 (en)
WO (1) WO1990007683A1 (en)

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* Cited by examiner, † Cited by third party
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KR0126550B1 (en) 1998-04-03
DK167985B1 (en) 1994-01-10
WO1990007683A1 (en) 1990-07-12
DK214690D0 (en) 1990-09-07
PL285966A1 (en) 1991-03-25
KR910700437A (en) 1991-03-15
EP0424474A1 (en) 1991-05-02
DE68908181T3 (en) 1998-06-18
EP0424474B1 (en) 1993-08-04
DE68908181T4 (en) 1995-06-14
NO903903D0 (en) 1990-09-07
UA27758C2 (en) 2000-10-16
NO903903L (en) 1990-09-07
DE68908181T2 (en) 1994-04-14
NO890076D0 (en) 1989-01-09
NO171810C (en) 1993-05-05
DE68908181D1 (en) 1993-09-09
NO171810B (en) 1993-01-25
EP0424474B2 (en) 1997-11-19
JPH03503206A (en) 1991-07-18
JPH0718602B2 (en) 1995-03-06
RU2039914C1 (en) 1995-07-20

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