JPS5496853A - Cooling process with furonic compound coolant - Google Patents

Cooling process with furonic compound coolant

Info

Publication number
JPS5496853A
JPS5496853A JP329678A JP329678A JPS5496853A JP S5496853 A JPS5496853 A JP S5496853A JP 329678 A JP329678 A JP 329678A JP 329678 A JP329678 A JP 329678A JP S5496853 A JPS5496853 A JP S5496853A
Authority
JP
Japan
Prior art keywords
coolant
furonic
compressor
compound
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP329678A
Other languages
Japanese (ja)
Inventor
Hideji Mori
Ryokichi Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP329678A priority Critical patent/JPS5496853A/en
Publication of JPS5496853A publication Critical patent/JPS5496853A/en
Pending legal-status Critical Current

Links

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
    • 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
    • F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
    • 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
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubricants (AREA)

Abstract

PURPOSE:To economize capital and operating costs by optimal selection of the composition of furonic compound coolant, the delivery pressure of a compressor and outlet pressure of an expansion valve. CONSTITUTION:Furonic coolant is used in this process. In the pre-compression stage, compound coolant gases including R12 furonic coolant and R13 furonic coolant are set at a composition containing 40 to 70 volume percent of R12 furonic coolant at a final coolant evaporation temperature of minus 50 deg. to minus 70 deg.C, with the delivery pressure of a compressor 31 set at 7-14 kg/cm<2> and the outlet pressure of the expansion valve 37 at 0 to 1 kg/cm<2>. Therefore, a single coolant compressor 31 can operate two-way mixed coolant and desired coolant evaporation temperature is obtained at a delivery pressure below normal level without making the intake pressure of the coolant compressor 31 negative.
JP329678A 1978-01-18 1978-01-18 Cooling process with furonic compound coolant Pending JPS5496853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP329678A JPS5496853A (en) 1978-01-18 1978-01-18 Cooling process with furonic compound coolant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP329678A JPS5496853A (en) 1978-01-18 1978-01-18 Cooling process with furonic compound coolant

Publications (1)

Publication Number Publication Date
JPS5496853A true JPS5496853A (en) 1979-07-31

Family

ID=11553406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP329678A Pending JPS5496853A (en) 1978-01-18 1978-01-18 Cooling process with furonic compound coolant

Country Status (1)

Country Link
JP (1) JPS5496853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03255856A (en) * 1990-03-06 1991-11-14 Shin Meiwa Ind Co Ltd Cooling device
EP2162686A4 (en) * 2007-06-04 2013-05-22 Carrier Corp Refrigerant system with cascaded circuits and performance enhancement features

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03255856A (en) * 1990-03-06 1991-11-14 Shin Meiwa Ind Co Ltd Cooling device
EP2162686A4 (en) * 2007-06-04 2013-05-22 Carrier Corp Refrigerant system with cascaded circuits and performance enhancement features

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