2Flow Presentation 2010

UK Patent No: GB2441836Worldwide: PCT/GB2008/050177

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.

CurrentBathSolutions

WaterBath

BathTemp

IceBank

GlycolBath

0˚

Ice NoIce

-2˚

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.

The2FlowSolution

-2˚2FlowIcereserve

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:

Summary

Ultra Cool Liquid Innovations

2Flowistheperfectsolutionforallicebankandglycol

beercoolers!

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

2Flow Presentation 2010

UK Patent No: GB2441836Worldwide: PCT/GB2008/050177

BrewfittLtd,InternationalHouse,PenistoneRoad,FenayBridge,Huddersfield,WestYorkshire,UnitedKingdom,HD80LETelephone+44(0)1484340800Fax+44(0)1484340900Emailsales@brewfitt.co.ukWebwww.2flow.co.uk