thermo dynamics ltd. solar boiler · liquid-flat-plate(lfp) ... coil™ all copper heat exchanger...

TC.230.07.JAN/2010 SolarBoiler™TechnicalSpecifications;page1of8

Solar Boiler ™

SolarDomesticHotWaterSystemTechnicalSpecificationsSRCCCertification#100-2006-005A–CSA#243150

Thermo Dynamics Ltd.101 Frazee AvenueDartmouth,NovaScotiaCanada,B3B-1Z4Tel:(902)468-1001Fax:(902)468-1002Email:[email protected]

A. General Information1.0 System Description:

The Thermo Dynamics Solar Boiler™systemisarevolutionaryconceptinsolardomesticwaterheatingsystems.Itisasolarpreheat system using the external Side-Arm™heat exchange system pioneeredbyThermoDynamicsandtheMicro-Flo®collector system for unsurpassed heatexchangeefficiency.

1.1 Warranties:Thermo Dynamics Ltd. warranties theMicro-Flo® collectors and Solar Boiler™heatexchangemoduleforten(10)years,all other components are warranted forone(1)year.

1.2 System Options:Micro-Flo®collectorsareavailablein1.2mx2.4m,(4'x8').TheSolarBoiler™systemcan have either one or two Micro-Flo®collectors installed. Collector mountinghardwareisavailableforeitherslopedorflatroofinstallations.

2.0 Product Use:Yearrounddomesticandsmallcommercialhotwaterpreheatsystems.Idealforremotelocations where power electrical powerconsumptionislimitedorunavailable.

2.1 Geographic and Climatic Limitations:None. Double freeze protection, usingantifreeze and draindown, protects thesystem in cold climates. Inhot climatesovertemperatureprotectionisprovidedbyinhibitedglycolcoupledwithdraindownandthermostatictankprotection.

PVModuleSSeriesLFPSolarCollectors

3/8"copperlineset

SolarBoiler™Module

SolarStorageTank AuxiliaryWaterHeater

TC.230.07.JAN2010 SolarBoiler™TechnicalSpecifications;page2of8

Solar Boiler ™


3.0 Thermo Dynamics Ltd.’s Experience:ThermoDynamicsLtd. (TDL) isaCana-dian company engaged in the research,development,production,distributionandinstallation of solar thermal equipment.The company has been involved in thesolar thermal industry since 1981 andoperatesfromitsheadofficeandfactoryinDartmouth,NovaScotia,Canada,thesistercityofHalifaxsituatedontheAtlanticcoast.Thecompany’sspecializationistheglazedliquid-flat-plate(LFP)collectorswithmetalabsorbers.TDLisafullyintegratedsolarthermalcompanywiththeabilitytoconvertrawaluminumandcopperintoahightech-nologysolarwaterheatingsystem.

ThermoDynamicsLtd.,asaworldleaderin solar technology, manufactures andmarkets solar heating equipment fromcompletesystemstobasicselectivesurfacecomponentsforO.E.M.’slicensees,dealersanddistributorsthroughoutNorthAmerica,Europe,Africa,NewZealand,aswellas10othercountriesaroundtheworld.

4.0 SystemConfiguration:The Solar Boiler™ is available in twoformats: SB32-9PV SB64-9PVAll systems come with a Solar Boiler™module,S-Seriescollector(s),atubingkittoconnecttheSolarBoiler™moduletothecollector,andaflushmountingkit forthecollector.Storagetanksaresuppliedbythecustomer.Thestoragetankmusthave1unusedportatthetopofthetankandoneunusedportatthebottomofthetank.

4.1 Shipping Information:System: Weight:SB32-9PV 94kg(206lbs)SB64-9PV 141kg(310lbs)

700

mm

(27-

1/2"

)

400mm (15-3/4")

203 mm (8")


Solar Boiler ™



B. Collector Array1.0 Micro-Flo® Collectors:

Thermo Dynamics S32 flat plate liquidcollectorsaresingleglazedwith low-irontemperedglass.Theabsorberconsistsofasingleserpentinealuminumfinwithanintegralcoppertube,whichiscompletelysurrounded by the aluminum andmetal-lurgicallybondedtogether.Thebackandsidesareinsulatedwitha25mm(1")layerofcompressedfiberglass.Thecollectorframeisextrudedaluminumwithabaked-enamelfinish,(darkbrown).Collectormountingisbywayofaslidingbolt-track.Flushandrackedcollectormountingformatsareeasilyaccommodated.

1.1 Options:Factoryinstalledtemperaturesensors.

1.2 Dimensions:S32: 1.20mx2.47mx0.086m (47-3/8inx97-3/8inx3-3/8in) Grossarea:2.96m2(31.9ft2) Aperturearea:2.78m2(30.0ft2) Absorberarea:2.87m2(30.9ft2 Liquidcapacity:0.389L(0.086IG)

1.3 Weight:Model Net ShippingS32 45kg(99lb) 55kg(120lb)

1.4 More Information:SeetheThermoDynamicspublication“SSeriesSolarCollectors-TechnicalSpeci-fications (TC.201.03.JAN/09)” for morecompletespecificationsontheMicro-Flo®collectors.

1.20m (47-3/8")

2.47m

(97-3/8"

)

3.08m

(121-3/8")

1.20m (47-3/8") 0.086m (3-3/8")

CollectorThermalEfficiency

(Ti-Ta)/G(°C•m2/W)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

0.00 0.02 0.04 0.06 0.08 0.10

Efficiency

1storder:η=0.694-4.809(Ti-Ta)/G2nd order: η=0.685-3.759(Ti-Ta)/G-0.0150(Ti-Ta)2/G


Solar Boiler ™


2.3 Leak Detection:Theglycol reservoir in theSolarBoiler™modulewilloverflowontothefloor.Propyl-eneglycolisclear(olderpropyleneglycolmaybeslightlygreenand/orbrown).Thefluid has an oily, slippery feeling whenrubbedbetweenyourfingers.

2.4 High Temperature Limit:A high temperature limit sensor installedontheSolarBoiler™modulepreventsthestoragetankfromexceeding82°C(180°F).An adjustable tempering valve can beinstalledonthehotwateroutletifrequiredbythelocalplumbingcode.

2.5 Over Temperature Protection:Theboilingpointof40/60%aqueoussolu-tion of Propylene glycol/distilled water is105°C (221°F). The maximum recom-mendedbulktemperatureis163°C(325°F)and the maximum recommended filmtemperatureis191°C(375°F).TheSolarBoiler™isequipedwitha414kPa,(60psi)pressurreliefvalve(PRV)onthesolarloop.Intheeventofapumpfailingtocirculatetheglycolonahotsunnyday, theglycolexpands in thesolarcollector, increasingthepressureinthesolarloop,andtherebyincreasingtheboilingpointoftheglycoltopreventboiling.

2.6 Corrosion Protection:Inthecollectorloop,thepropyleneglycol,whenthepHisapproximately5-7,isnonaggressive. Allwettedpartsarecopper,stainlesssteel,carbonandbrass.

3.0 Pump Description:The Solar Pump™ is a brass body,vane-type, positive displacement pump.The pump has special clearances andethelyene-propylenesealsforhightempera-tureprotection. Ithasamaximumoutputpressureof500kPa(73psi).Thenominalflowrateis1.2L/min.(0.32USGPM).ThepumpisdrivenwithanefficientDCmotorthroughamagneticcoupling.Nominalpowerconsumptionis18watts(1/40hp).

3.1 Maximum Operating Temperature:88°C(190°F)

3.2 Maximum Operating Pressure:414kPa(60psi)

4.0 Piping:TheconnectionbetweentheSolarBoiler™moduleandthesolarcollectorsismadewithsoftcoppertubing

4.1 Copper Tube Kit:Acoppertubekitissuppliedforconnectingthe solar collectors to the Solar Boier™module.Thekitconsistsoftwo9.53mm(3/8") copper tubes, Armaflex™ foaminsulation,and16/4communicationwire.Theinsulationisputonthecoppertubingonsitebytheinstaller.

C. Liquid Handling System1.0 General Description:

TheSolarBoiler™moduleisaShellandCoil™allcopperheatexchangerandglycolreservoir. The heat transfer fluid in thesolarloopcirculatesfromthereservoirtothesolarcollectorsandbackthroughthecoilsof theheatexchangerbyapositivedisplacement pump. The solar loop isclosed fromtheatmosphere. A414kPa(60 psi) pressure relief valve is installedforsafety.Circulationontheshellorwatersideoftheheatexchangerisgeneratedbynaturalcirculation.

2.0 Principles of Operation:

2.1 Freeze Protection:Freezeprotectionisprovidedbyasolutionof 40%PropyleneGlycol USP and 60%distilledwaterinthesolarloop.Propyleneglycols freezing point is -19°C (-2.4°F).Thewaterinthesystemstartstoformicecrystals and pumping becomes difficult.The40/60aqueoussolutionofPropyleneGlycolprovidesburstprotection to -51°C(-60°F).

2.2 Contamination Protection:The Solar Boiler™ module operates atatmosphericpressure. Thestorage tankisatcitywaterpressureandthewaterwillflowintotheSolarBoiler™moduleifthereisaleakintheheatexchanger,dilutinganddispellingthesmallvolumeofheattransferfluidfromthesystem.Propyleneglycolisnontoxicfoodgradeapprovedheattransferfluidand iscompatiblewithasinglewallheatexchanger.


Solar Boiler ™



2.3 DurabilityHotwaterincontactwithcoppertubinghasshowna lifeexpectancy inexcessof30years.Corrosioninhibitorsonthepropyl-eneglycolheattransferfluidofferexcellentprotectioninthecollectorloop.

2.4 Pressure Rating:The Shell-and-Coil™ heat exchanger istestedto300psionthecitywatersideand120psionthecollectorside.

3.0 Storage TankTheSolarBoiler™moduleisdesignedtoworkwithmanycommerciallyavailablestor-agetanks.Minimumsolarstorageis272L(72USG)ofwater.Tanksmustbesuitableforhotwaterserviceandhaveat least2ports(19mm,3/4")atthetopofthetankandonebottomport.Mostelectricwaterheatertanksaresuitable.Electricelementsmustnotbeactivated.

coldwatersupply

solar storage tank

SolarBoiler™

coldwaterdiptube

hot watersupply

solar storage tank

coldwater supply

hot watersupply

SolarBoiler™

D. Controls1.0 General Description:

TheSolarBoiler™usesaproportionalcon-trolstrategy,achievedbythevariableoutputofa20Wphotovoltaicmodule.ThevariablecollectorflowrateandthermosyphonicflowbetweentheSolarBoiler™andthestoragetankensurethathighqualitywaterissup-pliedtotheauxiliaryheaterthroughouttheyear.ThePVmoduledrivestheDCmotorthroughalinearcurrentboostertoensuregoodperformanceatlowlightlevels.

1.1 Trade NamesPVModule:BPSolarS320Jphotovoltaicmodule

LCB:Delta-TBoosterII,manufacturedbyThermoDynamicsLtd.

2.0 PV Module:TheBPSolar20WattPVmoduleisusedtodrivetheDCmotor.Themodulehas36single-crystalsiliconsolarcellsconnectedinseries,andweighs2.95kg(6.5lb)andhasoutsidedimensionsof421mm(16.6")x502mm(19.8").Themoduleselectricalspecificationsare:

CurrentatPeakPower 1.17AVoltageatPeakPower 17.1DCVTypicalPeakPower 18.0WShortCircuitCurrent 1.19AOpenCircuitVoltage 20.8DCV

3.0 Linear Current Booster (LCB):TheSolarBoiler™usesaLinearCurrentBoostertomatchthepowerdeliveryofthePVmoduletotheDCmotorundervaryinglightcondition.AtpeakirradiancethePVmodulerunsthemotoratratedspeed,atlower light levels theLCBtransformsthevoltage intocurrent toallowthemotor tostart.Themotorrunsatreducedspeedatlowerlight levelsprovidingaproportionalcontrolfortheSolarBoiler™.

ThecontrolleralsomeasuresthecollectortemperatureandthestoragetemperaturetoprovideDelaTcontrol.

Other features include high temperaturestorage shut off and high collector tem-peratureshutoff.

E. Heat exchanger and tank1.0 General Description:

TheSolarBoiler™usesThermoDynamicshigh performance Shell-and-Coil™ heatexchanger mounted in the Side-Arm™configuration.Thissystemprovidesahighlystratifiedstoragetank.Thestoragetankcanbeanycommerciallyavailabletankwiththecorrectconnections.

2.0 Heat Exchanger

2.1 MaterialsShell-and-Coil™heatexchangerismanu-factured entirely from copper. The heatexchangerconsistsofseveralcoppercoilsenclosedinacoppershell.Allconnectionsarebrazedandareexternaltotheshell.

2.2 Thermal PerformanceTheSolarBoiler™utilisesahighperfor-mance,Shell-and-Coil™heatexchanger.Heattransferarea:0.61m2(6.5ft2).Overall heat transfer coefficient: 380W/m2•K(67Btu/h•ft2•°F).


Solar Boiler ™


F. Heat Transfer Fluid1.0 Genral Description

The propylene glycol, used in the SolarBoiler™,isanontoxic,foodgradeapprovedheattransferfluid.Itiscommonlyusedinthefoodindustryforhighspeedfreezingofmeatsandpoultrythroughdirectimmersioninthefluid,aswellasanadditiveinmanyfooditemssuchassaladdressings,vanillaextract,etc.

2.0 Chemical Composition:Solution of Propylene Glycol, USP anddistilledwater.

Composition: 40%Propyleneglycol(%byvolume)60%distilledwater

pH: 7.0Colour: clear

TheSolarBoiler™modulecontains4LofthePropyleneglycol/distilledwatermixture.

3.0 Fire Safety:Noflashpointandnoncombustible

4.0 Toxicity:Propylene Glycol heat transfer fluid isgenerallyrecognizedbytheFoodandDrugAdministration (FDA) as a food additiveunderPart182and184oftheFoodAdditiveRegulations.Theregulationforpropyleneglycolis21CFR184.1666.

5.0 Durability:Maximumanticipated lifespan is5 to15years.

H Maintenance1.0 General Description:

Theinstallationmanual,withmaintenanceandtroubleshootingprocedures,issuppliedwithsystems.

2.0 System Shut-Down and Start-Up:Thesystemdoesnotneedtobeshutdownforvacationorwinterperiods.Initialsystemstart-upshouldbecarriedoutinearlymorn-ingorlateeveningwhenthecollectorsarenotunderstagnationconditions.

3.0 Cleaning and Maintenance:Check for fluid loss in the collector loopeveryyear.CheckthepHofthecollectorloop fluid annually, and replace it if notbetween6.0and7.0.Replacethecollectorfluideveryfivetofifteenyears.Thestoragetankshouldbedrainedeveryyeartopreventsedimentation.Thebackflushingprocedurefor theheatexchangermustbe followedeveryyear.Thebackflushingprocedureislistedunder the topof theSolarBoiler™andintheinstallationmanual.

G. Installation1.0 Packaging:

TheSolarBoiler™systemisshippedinthreeor fourboxesdependingon thecollectorconfiguration.OnefortheSolarBoiler™module,onefortheLIFELINE®tubing,andoneortwoforthesolarcollectors.

1.1 Labour and Equipment:Two(2)menwitha ladderand ropecaneasilymountcollectors.Thesystemmaybe installed with normal plumber's andcarpenter's tools. Special tools are notrequired.

2.0 Connection with Water Supply:Installabackflowpreventerandtemperingvalveifrequiredbylocalplumbingcode.


Solar Boiler ™



4.0CertificationsSolarBoilersystems,SB32-9PVandSB64-9PVareCSAcertified

4.1CSACertificationCertification#243150

4.2EnergystarCertificationTheSB64-9PVqualifiesfortheEnergystarrating

I Solar Thermal Performance Canada:1.0 Test Method:

CAN/CSAF378andT.I.L.MSE-45

1.1 Location:Bodycote Testing Group, Mississauga,Ontario.Date:February25,2009.

1.3 Details of System:Model:SB64-9PVSolarCollectors:2-S32CollectorArea:5.95m2(64.1ft2)Tank:270L(60IG)HeatExchanger:Shell-and-Coil™HeatTransferFluid:40%PropyleneGly-col/60%WaterControls:TDLDeltaTBoosterIIPVModule:BPSolarSX20U,20WattPump:TDLSolarPump™P24070M

2.0 Test Conditions:Systemtestedonindoortestbenchusingsolarsimulator.

2.1 Collector Tilt:Normaltoincidentradiation

2.2 Ambient Temperature:Tank:20°C(68°F)Collectors:15°C(59°F)

2.3 Windspeed:Day:3.3m/s(10.8ft/s)

2.4 Hot Water Load:300 L/Day @ 55°C. (66 IG/DAY @131°F)

2.5 Total Daily Solar Radiation:63.83MJ(60.50MBtu)

2.6 Solar Output:27.22MJ/day(25.81MBtu/day)9.94GJ/year(9.42MMBtu/year)

3.0 Simulated System Performance CanadaThesystemreferredtoinsection1.3wassimulatedusingWATSUN12.1andTMYweatherdata.

3.1 Simulation Results CanadaHalifax:2,982kWh,(10.2MMBtu)Ottawa:3,286kWh,(11.2MMBtu)Victoria:2,997kWh,(10.2MMBtu)


Solar Boiler ™


4.0CertificationsSolarBoilersystems,SB32-9PVandSB64-9PVareOG-300certified

4.1SB32-9PVCertificationCertification#300-2009051A

4.2SB64-9PVCertificationCertification#300-2009051B

TheSolarBoiler™describedbythisbrochure,whenproperlyinstalledandmaintained,meetstheminimumstandardsestablishedbytheSRCC(SolarRating&CertificationCorporation).ThiscertificationdoesnotimplyendorsementorwarrantyofthisproductbySRCC.

5.0 Simulated System Performance USA:Thesystemreferredtoinsection1.3wassimulatedusingWATSUN12.1andTMYweatherdata.

5.1 Simulation Results USA:Boston:3,234kWh,(11.3MMBtu)Ft.Worth:4,931kWh,(16.8MMBtu)Denver:4,851kWh,(16.5MMBtu)Seattle:2,873kWh,(9.8MMBtu)SanFran.:4,667kWh,(15.9MMBtu)Miami:4,794kWh,(16.3MMBtu)Chicago:3,586kWh,(12.2MMBtu)

J Solar Thermal Performance USA1.0 Test Method:

SRCC Dosument OG-300, OperatingGuidelines and Minimum Standards forCertifyingSolarWaterHeatingSystems.

1.1 Location:Bodycote Testing Group, Mississauga,Ontario.Date:February25,2009.

1.2 Details of System:Model:SB64-9PVSolarCollectors:2-S32CollectorArea:5.95m2(64.1ft2)Tank:270L(60IG)HeatExchanger:Shell-and-Coil™HeatTransferFluid:40%PropyleneGly-col/60%WaterControls:TDLDeltaTBoosterIIPVModule:BPSolarSX20U,20WattPump:TDLSolarPump™P24070M

2.0 Test Conditions:Systemtestedonindoortestbenchusingsolarsimulator.

2.1 Collector Tilt:Normaltoincidentradiation

2.2 Ambient Temperature:Tank:20°C(68°F)Collectors:14°C(58°F)

2.3 Water Mains Temperature:14°C(58°F)

2.4 Hot Water Load:43.3 MJ/day @ 57°C. (41,045 Btu/day@135°F)

2.5 Total Daily Solar Radiation:4,733Wh/m2-day(1,500Btu/ft2-day)

2.6 Solar Rating:

SB32-9PVSolarEnergyFactor:1.5

SB64-9PVSolarEnergyFactor:2.3

thermo dynamics ltd. solar boiler · liquid-flat-plate(lfp) ... coil™ all copper heat exchanger...

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