heatcalc.com 1

Heatrecovery:theleastsexy,mostprac3cal,cleanenergysourcearound.

heatcalc.com 2

Heat–bydefini5on–isaformofenergy

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Andisavailableasabyproductofindustrialproduc5on

Usingheatasanenergysourceproduceszeroaddi5onalemissionsandoBenoffsetsfuel,electricity,orotherexpenses

CEMENT POWERGENSTEEL COMPRESSIONFOOD&BEV

REFININGCHEMICALSGLASS

Manyindustriescanbenefitfromheatu5liza5on

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Itjustdoesn’thavethecurbappealthatwind,solar,andothercleanenergytechnologiesdo.

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But,industrialheathasuniquelyaOrac5vequali5es

•  Usingitproduceszeroemissions,requiresnofuel

•  OBenavailable24x7,dayornight,regardlessoftheweather

•  Candirectlyoffsetelectricityorfuelconsump5on

•  Accessible,andmeasurable

•  OBenavailableon-site,andusableon-siteornearby

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Itisalsoavailableinhugequan55esTotalenergylostasUS

industrialheat(5-13quadrillionBTU)

=Totalprimaryenergyconsump5onofItaly

(7quadrillionBTU)

20-50%ofUSIndustrialenergyislostasheat

Sources:USDOE;EnergyInforma5onAdministra5on

Andit’saversa5lesourceofenergyBelowaretheprimary3op5onsforheatu5liza5on

Warmsomethingup•  Spacehea5ng,drying,pre-hea5ng,etc.

Coolsomethingdown•  Aircondi5oning,refrigera5on

Generateelectricity•  Useon-site,orselltogrid

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HeatrecoveryhelpstheboOomline

Heatrecovery…“Improvesplantcompe33veposi3oninthemarket”

EBITDAmarginsatcementfactories

10-15%

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3componentsofawasteheatproject

•  Furnaces•  Ovens•  Kilns•  Incinerators•  Turbines•  Engines•  Boilers•  Excesssteam•  Excesshotwater

•  Forwarming:heatexchanger(s),steamorhotwaterloop

•  Forcooling:absorp5onchiller•  Forgenera3ngelectricity:ORC,thermoelectric,steamturbine,etc.

•  OBenwithinsamesite•  Hospitalhea5ng&cooling•  Campushea5ng&cooling•  Foodstoragerefrigera5on•  Lumberdrying•  Greenhousehea5ng•  Combus5onairprehea5ng•  Onsiteelectricity•  Gridelectricity

2.Recoveryunit 3.User

Ideally,heatavailabilitymatchestheuser’sdemandschedule

1.Heatsource

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Example:heatforwarmingMul$plenaturalgasenginesgenerateelectricityforthegrid.Theengineheat–whichisanaturalbyproductofgenera$on–isusedinthedistricthea$nglooptowarmnearbybuildings.ThisarrangementiscalledCombinedheatandpower(CHP).

Benefits+  Operatorsreceiveprimaryenergysavings

of40%+  Avoidedtheaddi5onalcapexofboilersto

supplyhea5ng

www.dieselgasturbine.com

Districtenergyloop BuildingheatRecipengines

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Example:heatforcoolingAtanaluminumfacilityinDubai,aircondi$oningisrequiredformuchoftheyear.Absorp$onchillersconvertsmelterheatintoaircondi$oning,whichcoolstheworkerareasofthebuilding.Benefits+  Avoidedcapexonaircondi5oningunits+  Avoidedcostofelectricityfromrunning

theaircondi5oningunits+  Reducedelectricityconsump5onby

242GWh,enoughfor~23,000UShomes

hOp://en.energy-changes.com/

Absorp5onchillers BuildingACAluminumplant

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Example:heatforpowergenera5on

www.zkg.de

Heatatthiscementfacilityisextractedfrom3areas:therotarykiln,clinkercooler,andnitrogenoxideremovalplantandconvertedintoelectricitywithasinglesteamturbine.Benefits+  Offsets1/3oftheelectricityrequiredat

thesite+  CO2emissionsreducedby30,000tons/yr+  Energypricehedging

Steamturbine On-siteelectricityCementplant

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EachheatsourceisuniqueTypically,specsheetsormonitoringequipmentindicatethetemperature&flowrateoftheheatsource

252°C@200m3/min

856°F@245c3/hr

512°F@502c3/s

192°C@15m3/s

352°C@800kg/min

459°C@8kg/s

946°F@24lbs/s

490°C@24kg/s

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HeatCalc.commakessenseoftheheatdataByquan5fyingtheheatavailableatyoursource.Online.Free.

10,302kW

2,256kW

894kW

145kW

954kW

2,509kW

4,034kW

8,393kW

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HeatCalchastoolstohelpenableyourproject

HeatCalcquan3fiesyourheatsource•  Calculatestheamountofheatavailableinyour

source,basedonyourspecificheatinputs•  Providesideasforwhatyoucandowiththeheat•  Connectsyouwiththerightsuppliersandenergy

servicecompaniestomakeyourprojectareality

Ahubofusefulheatrecoveryinforma3on•  Exampleprojects/casestudies•  Recentheatrecoverynews•  Howto’sandrecommenda5ons

visit us at heatcalc.com Enabling heat recovery projects worldwide