Applications in heating and cooling
Energy saving effect of ejector technology
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
DENSO Europe
Masataka Imazu
Pim Vernooij
Jennifer Yun
Contact:[email protected]@[email protected]
December 16, 1949EstablishedCapital € 1.4 billion
Net income€ 2.6 billion€ 1.2 billion
Consolidated basisNon-consolidated basis
(Japan 13, North America 4, Europe 4, Asia/Oceania 12, South America/Others 2)Affiliates under the equity method 32
(Japan 61, North America 28, Europe 35, Asia/Oceania 58, Others 6)Consolidated subsidiaries 188
Employees146.71438.493
Consolidated basisNon-consolidated basis
Net sales€ 31.4 billion€ 17.8 billion
Consolidated basisNon-consolidated basis
as of March 31, 2015
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
Corporateprofile
EnvironmentSafety Comfort & Convenience
Non Automotive
Notes:EUR€ amounts have been translated, for convenience only, at the rate of 123.63 yen = EUR€ 1, the approximate exchange rate prevailing on April 12, 2016. Billion is used in the American sense of one thousand million.
Contact:[email protected]@[email protected]
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
OutlineofEjectortechnology
Contact:[email protected]@[email protected]
Contact:[email protected]@[email protected] Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
Loosing energy duringexpansion as vortex
CompressorExpansion valve
Condenser(Gas cooler)
Evaporator
Isentropic line
⊿h
For Car air conditioner(in evaporator)
For CO2 refrigerantEcoCuteVending machine
For refrigerator truck(R404A)
For cool box
DENSOʼs original tech.Car air conditioner
Refrigerator truck
Cool box
DENSO Issue of traditional refrigerant cycle
AdaptingDENSO’soriginalejectortechnologytovariousproducts
EcoCute
DENSOproductswithrefrigerantcycle
Contact:[email protected]@[email protected] Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
EjectorcycleEjector
Driveflow Mixingsection Diffuser
PL
Ph
PSPd
Suctionnozzle
Gn
Ge
Pressure
Ph
PSPL
PdGn
GeGn+Ge
VelocityGn
Ge
Gn+Ge
Pressurerise
DrivenozzleRefrigerantCycle
EJEC
S®Ⅰ
EJEC
S®Ⅱ
Trad
ition
alEjectorcycle
CondenserCompressor
EvaporatorExpansionvalve
Ejector
Gn
AccumulatorGe
Gn
Ge Upwind evaporatorDownwind evaporator
Ejector: Fluid pump which suck and rise refrigerant flow by unused energy
Contact:[email protected]@[email protected] Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
DENSOejectorproductdevelopment‘03 ’04 ’05 ’06 ’07 ’08 ’09 ’10 ’11 ’12 ’13 ’14 ’15 à
Refrigerated truck(R404A)
Stationary products(CO2)
Car air conditioner(R134a)
●WorldfirstEjector
●WorldfirstCO2Ejector(EcoCute)
Vendingmachine
●EJECS®Ⅱ2temperatureevaporator
(EcoCute)
●EJECS®Ⅱ(Carairconditioner)
●EJECS®Ⅱ2temperatureevaporator
●EJECS®Ⅱ(STEP2)
CollaborationwithFujiElectric
●
●CO2 heatpumpwithejectorcycle(Stiebel Eltron WPL5N)
●Coolbox
World first mass production type ejector was released in 2003
Displaycabinet
StationaryAC
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
CO2 heatpumpwaterheater-EcoCute-
Contact:[email protected]@[email protected]
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
CO2 refrigerantcycle&EjectorforEcoCute
Gascooler
Compressor
AccumulatorEvaporator
ElectricdriveEjector
InternalHEX
Magnetvalve
Coil
Ejector
Driveflow
Suctionflow
Driveflow
Suctionflow
AdjustableneedleNozzle
Diffuser
Mixingsection
l EJECS®I (since2003)
l EJECS®II (since2008)
ElectricdriveEjector
ElectricdriveExpansionvalve
Contact:[email protected]@[email protected]
Contact:[email protected]@[email protected] Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
PurposeofadaptingEJECS®Ⅱ cycleEJECS®I EJECS®Ⅱ
Refrigerant cycleFrost on evaporator
Hightemp.
Lowtemp.
Partitionfrosttodownwind
sideConcentratedupwindsideLowtemp.
Refrigerant
TubeFin
Frost Airflow
Longerdefrostinterval
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
CO2 refrigerantvendingmachine
Contact:[email protected]@[email protected]
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
CO2 refrigerantcycleforvendingmachine
l Developedsystem
Thermistor
Gascooler
InverterCompressor
InternalHEX
Evaporator
InsideHEX
Compressor Accumulator Evaporator
EjectorGascooler
Inverter
InsideHEX
JointdevelopmentwithFujiElectric
InJapan,hot+cold vendingmachinesarecommon.
C o l dB e v e r a g e
H o tB e v e r a g e
Contact:[email protected]@[email protected]
Contact:[email protected]@[email protected] Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
NewcontrolschemeConventional■EcoCute
Controlhighpressure forheating
Developed■Vendingmachine
M
Gascooler
Compressor
AccumulatorEvaporator 1
Ejector
Evaporator2
Evaporator3
Controllowpressurebymonitoringejectoroutlettemp.
Issue
M
Gascooler
Compressor
AccumulatorEvaporator
Ejector Eachevaporatoroutlettemperaturearedifferent
Poorresponse
Stable refrigerant cycle control and COP improved was achieved
Contact:[email protected]@[email protected] Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
Energysavingeffect
Annu
alpow
erco
nsum
ption
(Co
mparedwith
tradition
alcycle
)
25%energysaving
Developedmodel(withejector)
Conventionalmodel(withoutejector)
25% energy saving was achieved by ejector→Top class energy saving comparable to HFO machine !
Measuringcondition:JISB8561:2007
Protecting lives,Preservingtheplanet,andPreparingabrightfuture forgenerations tocome
Thankyouforyourattention!
Contact:[email protected]@[email protected]
Thank you very much!
.