DK2491318T3 - Parameterstyring i transportkølesystem og fremgangsmåder hertil - Google Patents

Parameterstyring i transportkølesystem og fremgangsmåder hertil Download PDF

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DK2491318T3
DK2491318T3 DK10771264.8T DK10771264T DK2491318T3 DK 2491318 T3 DK2491318 T3 DK 2491318T3 DK 10771264 T DK10771264 T DK 10771264T DK 2491318 T3 DK2491318 T3 DK 2491318T3
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Denmark
Prior art keywords
refrigerant
heat exchanger
vapor compression
temperature
compression system
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DK10771264.8T
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English (en)
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Lucy Yi Liu
Suresh Duraisamy
Gilbert B Hofsdal
Hans-Joachim Huff
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Carrier Corp
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    • 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
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F25B2400/13—Economisers
    • 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
    • F25B2400/23—Separators
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/19—Calculation of parameters
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/026—Compressor control by controlling unloaders
    • F25B2600/0261—Compressor control by controlling unloaders external to the compressor
    • 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
    • F25B2600/2509—Economiser 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1933—Suction pressures
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2102—Temperatures at the outlet of the gas cooler
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the compressor
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21163—Temperatures of a condenser of the refrigerant at the outlet 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
    • F25B2700/21172—Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
    • F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • F25B31/008—Cooling of compressor or motor by injecting a liquid
    • 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
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (13)

1. Kølemiddeldampkompressionssystem, der omfatter: en kølemiddelkompressionsindretning (320); en kølemiddelvarmeafvisningsvarmeveksler (330) nedstrøms for kompressionsindretningen; en kølemiddelvarmeabsorptionsvarmeveksler (350) nedstrøms for kølemiddelvarmeafvisningsvarmeveksleren (330); en første ekspansionsindretning (355), der er anbragt nedstrøms for kølemiddelvarmeafvisningsvarmeveksleren (330) og opstrøms for kølemiddelvarmeabsorptionsvarmeveksleren (350); en sensor (382), som er koblet til en udgang i varmeafvisningsvarmeveksleren (330), idet sensoren skal måle en kølemiddeltemperatur; og en styreenhed (390) til styring af driften af køledampkompressionssystemet, idet styreenheden er operativ til indirekte at verificere den målte kølemiddeltemperatur, kendetegnet ved, at kompressionsindretningen indbefatter et første kompressionstrin (320a) og et andet kompressionstrin (320b), og ved, at kølemiddeltemperaturen ved varmeafvisningsvarmevekslerens (330) udgang først bestemmes ved måling under anvendelse af sensoren (382) og dernæst bestemmes ved beregning under anvendelse af omgivelsestemperatur og dampkompressionssystemkapacitet.
2. Kølemiddeldampkompressionssystem ifølge krav 1, hvor dampkompressionssystemkapaciteten har et foreskrevet forhold med en driftsmodus eller forskel mellem forsyningslufttemperatur (Ts) og returlufttemperatur (Tr); og hvor der tilføjes en forskydning til omgivelsestemperaturen, som er responderbar på dampkompressionssystemkapaciteten.
3. Kølemiddeldampkompressionssystem ifølge krav 2, idet styreenheden (390) er konfigureret til at drive dampkompressionssystemet med den beregnede værdi for kølemiddeltemperaturen, når den målte kølemiddeltemperatur er forskellig fra den beregnede temperaturværdi.
4. Dampkompressionssystem ifølge krav 1, 2 eller 3, hvor sensoren (382) er en tryksensor eller en temperatursensor.
5. Kølemiddeldampkompressionssystem ifølge et hvilket som helst foregående krav, der omfatter en anden sensor (384) til måling af et kompressormellemtrintryk, idet styreenheden (390) er konfigureret til indirekte at verificere det målte kompressormellemtrintryk.
6. Kølemiddeldampkompressionssystem ifølge krav 5, hvor kompressormellemtrintrykket beregnes under anvendelse af et afgangstryk og et indgangstryk for kompressoren (320).
7. Kølemiddeldampkompressionssystem ifølge krav 5 eller 6, hvor styreenheden (390) er konfigureret til at drive dampkompressionssystemet under anvendelse af den verificerede værdi for kompressormellemtrintrykket, hvor det målte kompressormellemtrintryk ikke passer med den indirekte verificerede værdi.
8. Kølemiddeldampkompressionssystem ifølge et hvilket som helst foregående krav, der omfatter: en anden ventil (345), der er anbragt nedstrøms for varmeafvisningsvarmeveksleren (330); og et fødevandsforvarmerkredsløb (340), der er anbragt nedstrøms for den anden ventil (345) og opstrøms for den første ekspansionsindretning (355), idet fødevandsforvarmerkredsløbet indbefatter en kølemiddelinjektionsledning (314, 318) til åbning til et mellemtryktrin for kompressionsindretningen og en gennemstrømningsreguleringsventil (343, 353), der er anbragt i kølemiddelinjektionsledningen.
9. Kølemiddeldampkompressionssystem ifølge krav 8, hvilken styreenhed (390) er konfigureret til at lukke gennemstrømningsreguleringsventilen (343, 353), når kompressormellemtrintrykket er operativt til at få kølemiddel til at strømme mod fødevandsforvarmerkredsløbet.
10. Kølemiddeldampkompressionssystem ifølge et hvilket som helst af kravene 1 til 7, der omfatter: en flash-tank-fødevandsforvarmer (340), der er anbragt i seriestrømforbindelse mellem varmeafvisningsvarmeveksleren (330) og den første ekspansionsindretning (355), hvilken flash-tank-fødevandsforvarmer indbefatter: en flash-tank (342); en første gennemstrømningsreguleringsindretning (345), der er anbragt mellem varmeafvisningsvarmeveksleren (330) og flash-tanken (342); en fødevandsforvarmerdampledning (314) til indbyrdes fluidforbindelse af flash-tanken til et mellemtrin for kompressoren; og en anden gennemstrømningsreguleringsindretning (342), der er anbragt i fødevandsforvarmerdampledningen.
11. Fremgangsmåde til bestemmelse af en egenskab for et kølemiddeldampkompressionssystem med et kølemiddelkredsløb, der indbefatter en kølemiddelkompressionsindretning (320), en kølemiddelvarmeafvisningsvarmeveksler (330) nedstrøms for kompressionsindretningen, en kølemiddelvarmeabsorptionsvarmeveksler (350) nedstrøms for kølemiddelvarmeafvisningsvarmeveksleren, en sensor (382) til registrering af egenskaben med henblik på at bestemme en systemkapacitet for kølemiddeldampkompressionssystemet under drift, hvilken egenskab er en kølemiddeltemperatur ved en udgang i varmeafvisningsvarmeveksleren (330), og indbyrdes forbindelse af kølemiddelledninger som aktive bestanddele, hvilken fremgangsmåde omfatter: drift af kølemiddeldampkompressionssystemet i en modus, hvor kølemidlet cirkulerer i de aktive bestanddele i kølemiddelkredsløbet; indirekte bestemmelse af kølemiddeltemperaturen ved varmeafvisningsvarmevekslerens (330) udgang under anvendelse af omgivelsestemperatur og dampkompressionssystemkapacitet; sammenligning af den registrerede værdi for kølemiddeltemperaturen ved varmeafvisningsvarmevekslerens (330) udgang mod den indirekte bestemte værdi for kølemiddeltemperatur ved varmeafvisningsvarmevekslerens (330) udgang; og bestemmelse af en fejltilstand for en tilsvarende sensor, når et resultat af sammenligningen ikke passersammen.
12. Fremgangsmåde ifølge krav 11, der omfatter efterfølgende anvendelse af den indirekte bestemte værdi ved drift af dampkompressionssystemet.
13. Computerprogramprodukt, der omfatter et computeranvendeligt lagermedium til lagring af et computerlæsbart program, der, når det afvikles på en computer, får computeren til at udføre operationer til drift af en transportkøleunit, hvilke operationer omfatter: drift af transportkøleenheden i en modus, hvor et kølemiddel cirkulerer i et kølemiddelkredsløb; registrering af en kølemiddeltemperatur ved en udgang for en varmeafvisningsvarmeveksler (330) til bestemmelse af en systemkapacitet for transportkøleenheden under drift; indirekte bestemmelse af kølemiddeltemperaturen ved varmeafvisningsvarmevekslerens (330) udgang under anvendelse af omgivelsestemperatur og dampkompressionssystemkapacitet; sammenligning af den registrerede værdi for kølemiddeltemperaturen ved varmeafvisningsvarmevekslerens (330) udgang mod den indirekte bestemte værdi; og bestemmelse af en fejltilstand for en tilsvarende sensor, når et resultat af sammenligningen ikke passersammen.
DK10771264.8T 2009-10-23 2010-10-12 Parameterstyring i transportkølesystem og fremgangsmåder hertil DK2491318T3 (da)

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WO (1) WO2011049778A1 (da)

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WO2011049778A1 (en) 2011-04-28
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EP2491318B1 (en) 2018-05-16
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US20120227427A1 (en) 2012-09-13

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