Global natural refrigerant technology and energy

Globalnaturalrefrigeranttechnologyandenergy-efficiencysolutions
=NH3heatrecoveryhightemperatureheatpumpsinAustraliaandNewZealand=
PeterO’Neill
MayekawaAustralia
PtyLtd
Mayekaw a Wor ld M ap
PlantinJapan:Ibaraki/Hiroshima/Nagano
OverseasPlant:U.S.A./Mexico/Belgium/Brazil/Korea
Founded: 1924
Location: Tokyo, Japan
Turnover: US$1.5Billion
Employees:3,350 (38countries)
60 Offices in Japan / 3 Plants in Japan / 38 Countries / 97Offices / 6 Plants
MayekawaProductsfrom-271℃ to+180℃
SteamExpander
+180℃
SteamCompressor
+130℃
Heatpumps
+50℃
NH3
“NewTon3000”
+5℃
Refrigerators
Cascades
High
temperature
heatpump
Air+120 ℃
Water+90℃
CO2 HeatPump
“unimo”
AdsorptionChillers
“AdRef-Noa”
-50℃
Turbo
Comp.&Exp.
Helium
Compressors
-95℃
Cryogenic
compressor
-271℃
NH3 –Ethane
Cascade
Refrigerator
-208℃
-269℃
-120℃
Freezer
AirCycle
“PascalAir”
SlushNitrogen
HeliumRefrigerator
MeatDeboningRobots
3
Semi-HermeticScrewCompressorwithIPMmotor
NH3/CO2 Package“NewTon”
CO2 HeatpumpEco-Cute“unimo”
AdsorptionChiller“AdRef”
Airconditioning/HeatPump
AirCycleRefrigeration“PascalAir”
Hydrocarbon Chiller
NH3/CO2“NewTon”
(7 ℃～65 ℃)
CO2HeatPump“unimo”
(30 ℃～120 ℃)
(5 ℃～15 ℃)
Adsorption Chiller“AdRef ”
Fiveenvironmentally friendly naturalrefrigerantsapplied to
refrigeration, airconditioning, heatingandhot watersupply
AirCycle“PascalAir
(-50 ℃～-100 ℃)
5
NH3
• HighEfficiency:Compressorsand
IPMMotors
• LowCharge:
*SecondaryRefrigerantSystem(CO2)
*DirectExpansionSystem
• LessLeakage:HermeticMotors
Ammonia
NH3 Pump Circulation vs NewTon
Annual Power Consumption reduction of 50%
NH3 charge amount reduction of 98%
l
l
l
l
Cold Storage Volume : 55,000 m3
Cold Storage Temperature : -25C
Cooling Capacity : 560 kW
Location : Bangkok, Thailand
NH3pumpcirculation
NewTon
unit
Modelxnr.
N2016SSCx3
R6000x3
(-)
TotalMotorpower
396
270
(kW)
AnnualPowerconsumption
(compressor)
1,441,500
765,000
(kWh/y)
NH3charge
3,800
100
(kg)
CO2charge
0
2,000
(kg)
CO2
• HotwaterandHotdryairsupplyHeat-Pump
• Source:AirandWater
unimo AW
unimo WW
unimo AWW
WickhamPoint,Darwin
Carbondioxide
H2O
・ AdsorptionChillerUtilizingSolarEnergy
AdRef-Noa
Water
HC
• MixedRefrigerantsHeat-Pump
(ButaneandPropane)
Hydrocarbon
AIR
• AirCycleRefrigerationSystem
• ForLowTemperatureApplications
-50～ -100℃
AIR
DirectAircirculationsystem
Integratedturbocompressor&expander
③
Turbocompressor
Primarycooler
④
motor
Turboexpander
⑤
①
CoolingWater
②
Coldheatrecovery
Heatexchanger
Warehouse
-50~-100℃
12
NH3 Heat Pump
•
•
•
•
•
HighCOPoperation
Widetemperaturerange→Simpledesign
Lowlevelheatrecovery→Highefficiencyenergysystem
Energysaving→Utilizesexistingheatsources
Naturalrefrigerantusing(NH3)→Environmentallyfriendly
Ammonia
PlusHeat
•
Flow Diagram
OPEN FLASH
VESSEL
Cold Water Inlet
14 deg C
HEAT PUMP COMPRESSOR
Hot Water Outlet
65 to 90 deg C
Condenser
Subcooler
Total COP = 6.0 ≥ 9.0
Receiver
Condenser
Thermal Source:
Existing Refrigeration
System
Evaporator
High receiver
NH3
Refrigeration
System
Modification points
• Facts and figures from the field:
Two N6HK Heat Pump Units have been installed into Meat Processing Plants in
New Zealand’s South Island. Hot Water from the Heat Pump is used is for both
wash down water and boiler make up.
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l
Water from 15°c to 65°c
Flow of 13.74 m³/h
Capacity 550 kw
Storage tank 60 m³
Average COP reading of 6.5
Prior to the installation of the NH3 Heat Pump, the bi monthly LPG cost
was between $8,000.00 and $10,000.00
Payback period for the Heat Pump Unit : < 3 years
N6HKHeatpump
N6HKHeatpump
• Facts and figures from the field:
Three multi N6HK Heat Pump Units have been installed into a Meat Processing
Plant in South Australia. Hot Water from the Heat Pump is used is for both CIP
cleaning and boiler make up.
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Water from 18°c to 75°c
Flow of 9.0 m³/h
Capacity 600 kw
Storage tank 50 m³
Payback period for the Heat Pump Unit: 2.5 – 3 years.
3xN6HKHeatpumppackage
Conclusion
• WiththeuseofAmmoniaHeatPumps,wecan
significantlyreducethecombustion&usageofwater
heatingfuelsourcessuchasnaturalgasandcoalto
furtherassistinthecreationofalowcarbonsociety.
• Dependingonsystemoperatingconditionsand
applications,AmmoniaHeatPumpscanachieveCOP’s
inexcessof8.0
• Applicationexamplesincludewashdownareas,CIP
cleaningandpre-heatingofwatertoboilers.
• Canbeinstalledonexistingsystemswithsomesmall
modificationstopipework.
NaturalisWhatWeDesignFor
PeterO’Neill
MayekawaAustraliaPtyLtd
[email protected]