Post on 28-Feb-2018
Revolutionary New Cooling Solution PROVIDING EXTRA COLD, SUPER CHILLED DRINKS
• Aspecialistliquidcoolantwithanaccurate rangeoffreezepointtemperaturesavailable (-2°C,-3°C,-4°C,etc).• Providesauniform,crystallineicestorewith excellentenergyreserves.• Superiorthermal&heattransferproperties.• Reducescoolerenergyconsumption.• Anon-toxic,non-corrosive,stableliquid.• Apre-mixed‘Bag-In-Box’solution.
Water
Advantages: •Lessviscous•Hasicebankreserve•Excellentthermalproperties
Disadvantages: •Freezesat0˚C
Glycol
Advantages:Canbesetatlowtemperatures
Disadvantages: •Lowtemperaturecanonlybeheldforashorttime. •Noicebankreserve•Expensive •Moreremotesareneededtocopewithdemanddueto low reserve •Heavydutypumpsrequiredduetohighviscosity•Difficulttocontrol •Shelldatasheetswarnagainst •Verylimitedshelflife •Extrememeasuresrequiredtopreventcontactwith airduetohighabsorptionrates •Unstablemixturepercentageleadstocorrosion •Requiresengineerwithspecialistequipmenttocheckandtopup•Highviscosity.(seenextslide)•Extremelycorrosive(seenextslide)•Inferiorthermalandheattransferproperties(partlyduetohighviscositybutalsolowspecificheatcapacity)
Viscosity&Corrosion
ViscosityTests
GlycolDisadvantages•Highviscosity•Lowflowrate•Lessheattransfer•Strongerpump•Morecost
Uninhibitedglycolscanformvariousacidswhichareextremelycorrosive.
Evenglycolswithinhibitorsareonlyprotectedto25%strength.
Absorptionofwaterandconstantuncontrolledtopupsleadstoanuncontrollable,unstablesystem.
Glycolmixturesoflessthan25%arevulnerabletohotspotcorrosionwhichcancorrodeasystemwithinweeks.
GlycolCorrosion&BiologicalGrowth
25
33% Glycol @ -8˚c Water @ 0˚c
Types of Coolant
Comparison of Coolant Viscosity
Flui
dity
2flow
20
15
10
5
0
Actualpumpremovedfromaglycolbaseddrinksdispensesystem.
AdvantagesOf2Flow
•Freezesat-2˚C(enablingtheformationofanicebankreserve)
•Morecosteffective •Icebankreservemeanspeaktradingdoesn’trequiremorecoolers •Usesexistingcoolers
•Doesn’tneedexpensiveheavydutypumps •Farlessviscousthanglycol(flowratesalmostmatchingthatofwater)
•Excellentthermalandheattransferproperties(partlyduetoflowrates)
•Canbetransferredintoallstandardcoolers •Nondisruptiveinstallation
•Noncorrosiveandisnotharmfulortoxictotheenvironment
•2Flowis20%moreefficientthandiluteglycol(Seenextslidefordetails)
Energy Levels
Water
2Flow
Glycol
ON
/ O
FF
Compressor Usage
CS
CR
CS
CR
CR
CS
1 54 107 160 213 266 319 372 425 478 531 584 637 690 743 796 849 902 955 1008 1061 1114 1167 1220 1273
Time
CS = Compressor Start UpCR = Compressor Running
Glycolmixturescutinfarmoreoftenthan2Flow&water,leadingtoanincreaseinpotentialmaintenanceproblemsandenergyusage.
Test Results
1 21 41 61 81 101 121 141 161 181 201 221
Glycol
2flow
Water
Number of drinks (240 = 1 hour)
10.0
8.0
6.0
4.0
2.0
0
-2.0
-4.0
Tem
pera
ture
[°C
]
TE 25 draw testTinlet = 12°C; Python 15m insulation 19mm; 1 drink = 1 pint; flow rate = 1 pint / 9,5
sec; 4 pint / minute. 2flow and water with 8kg ice bank, glycol without ice bank.
UpgradeProcedure
•2Flowcanbeusedinanycooler •Switchoffremotecooler
•Removeiceandwaterfromsystemincludingpythonrecirculationpipes
•Establishtemperaturecontrolmethod •Ifmechanicalthermostatthensimplyreplaceexistingwithanew mechanicalthermostat •Ifelectroniccontrolwithprobethensimplyadjustsetpoint. •Ificebankcontrollerthenasimplerewireintoanewmechanical thermostatorbespokeconversionkitwillberequired.
•Refillwith2flow
•Attachinformationstickerstoremotecooler
•Switchonremote
TradeTrialUK
•Averagedispensetempbefore2.24˚C•Averagedispensetempafter0.74˚C•34ccremotewithadditionalunder countercooling
• Cellartemp11˚C• Ambienttemp25˚C• Pythonlength12M• Pythoninsulation19mm• Tempstakenexpod
0
0 .5
1
1 .5
2
2 .5
3
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49
Trade Trial
Number of Drinks
Before
After
Linear (After)
Linear (Before)
EuropeanTradeTrial
Purpose:TocomparethetemperatureperformanceofBrewfitt’s2flowagainstthetemperatureperformanceofaregularcooler.
Day 1 Waterbath Celsius -0.01 -1.70
Pint Standard 2flow differenceCelsius
1 2.50 1.00 1.50 2 2.30 0.50 1.80 3 1.80 0.50 1.30 4 1.80 0.50 1.30 5 2.00 0.30 1.70 6 1.70 0.20 1.50 7 1.70 0.00 1.70 8 1.60 0.00 1.60 9 1.60 0.00 1.60 10 1.90 0.00 1.90 11 1.70 0.00 1.70 12 1.70 0.00 1.70 13 1.60 -0.10 1.70Average 1.84 0.22 1.62
Day 2 Waterbath Celsius 0.50 -1.10
Pint Standard 2flow differenceCelsius
1 4.20 2.20 2.00 2 3.10 1.60 1.50 3 2.90 1.30 1.60 4 2.90 1.30 1.60 5 3.00 1.40 1.60 6 3.00 1.40 1.60 7 2.80 1.40 1.40 8 2.90 1.30 1.60 9 2.90 1.40 1.50 10 3.00 1.50 1.50 11 2.80 1.30 1.50 12 2.80 1.40 1.40 13 3.00 1.50 1.50 14 3.00 1.50 1.56 15 2.80 1.30 1.53 16 2.90 1.50 1.53 17 2.90 1.40 1.52Average 2.99 1.45 1.56
Method:TwoCalypso9coolersweresetupundercounteronewith2Flowinthewaterbathandtheotherwithwaterinthewaterbath.
The2Flowcoolerhadaspecialthermostatfitted.Eachcoolerwasallowed24hrstobuildice.Thetrialwasdoneonkegsfromacoldroomat6˚candfromastoreat25˚c.
Conclusion:• 2flowwillgiveonaverage1.5degreesofa temperaturereductionoverthestandardwaterbath.• Recommendontradetrials.
-0 .500.000.501.001.502.002.503.00
1 2 3 4 5 6 7 8 9 10 11 12 13 14
celci
us
2Flow Vs Standard Waterbath Coldroom Keg
Pint
Water 2Flow
0.00
1.00
2.00
3.00
4.00
5.00
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
2Flow Vs Standard Waterbath Store Keg
Pint
Water 2Flow
celci
us
Results:
EuropeanTradeTrial2
Data: Congelationpoint(3Flow)=-3ºCTemperatureset-point=-4ºC Beer : SuperBockBeer(Alc.(v/v)=4,8andCO2(g/l)=5,1)
Congelationpoint(Super-BockBeer)=-2,2and-2,5ºC
Temperatureambient(kegtemp.)=20ºC Beerflow=2,44Lts/min
Conclusions: Forcontinuoustaping,thebeertemperaturerangedbetween-2,2and5,4ºC. Fortapingwithstops(5min),thebeertemperaturerangedbetween-2,2and-1,6ºC. Forthesametemperatureandwhenwehaveacontinuoustapingbeerthe3flowefficiencydecreases.
Super-Bock Beer (Continuous taping) 3 Flow
Volume Taping (Liters) tt (min)
3 Flow Liquid Temperature
(ºC)
Beer Temperature
(ºC)
Ice-bank formed
0 -2.9 -2.2 Yes2.7 -0.3 0.3 Yes5.4 0.2 1.2 Yes8.1 2.5 1.4 Yes
10.8 2.8 1.8 Yes13.5 3.6 2 Yes16.2 4.2 2.3 Yes18.9 4.2 2.6 Yes21.6 4.2 5 Yes24.3 4.1 5.2 Yes27 4.1 5.3 Yes29 ~12 4.2 5.4 Yes
Super-Bock Beer (Taping after every 5 min) 3 Flow
Volume Taping (Liters) tt (min)
3 Flow Liquid Temperature
(ºC)
Beer Temperature
(ºC)
Ice-bank formed
0 0 -2.9 -2.2 Yes2 5 -2.8 -2.1 Yes4 10 -2.6 -2.0 Yes6 15 -2.5 -1.9 Yes8 20 -2.4 -1.9 Yes
10 25 -2.4 -1.8 Yes12 30 -2.5 -1.9 Yes14 35 -2.4 -1.8 Yes16 40 -2.3 -1.6 Yes18 45 -2.3 -1.6 Yes20 50 -2.3 -1.6 Yes22 55 -2.3 -1.6 Yes24 60 -2.3 -1.7 Yes26 65 -2.3 -1.6 Yes
Results:
South Africa
UAE
Indonesia
Singapore
Canada
USA
Mexico
Chile
UK
Ireland
France
Spain
Portugal
Italy
Netherlands
Poland
Greece
Cyprus
Croatia
Austria
Australia
New Zealand
China
Japan
Hong Kong
Pacific Islands