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LiquidAirMediaCoverage20121331October2012InstitutionofMechanicalEngineersPioneeringBritishtechnologiesthatcouldhelptostoreenergy-Page2ThecarbondioxideandhydrogenarereactedtogethertocreateSyngaswhichisthenprocessedtoformmethanolThemethanolispassedthroughagasolinefuelreactorcreatingpetrolThefuelproducedcanbeusedinanyregularpetroltankandifrenewableenergyisusedtoprovidetheelectricittherocessandendroductarecomletelcarbonneutral.Thiscleanfuelisadirectdrop-inreplacementfuelforexistingvehiclesandinfrastructure.Itcanalsobeusedtostoreintermittentwrong-timeorstrandedwrong-placeenergyfromrenewablesourcesandhasmanyadvantagesoverbiofuelswhenblendedwithconventionalpetrolafeaturethathasalreadyattractedtheattentionofthemotorsportindustry.ThetechnologycreatedevenmoreofastiramongsttheworldsmediathanliquidairaftertheScienceEditorofTheIndependentwhoattendedtheconferencesplashedthestoryonthefrontpageofthatFridayspaper.OverthecourseofthedaythisgreatexampleofmodernBritishengineeringwascoveredbytheBBCITVDailyTelegraphDailyMailandevenTheSunculminatinginavisitbyNickCleggtoStocktonthatafternoon.BythenextweekthestoryhadgoneglobalappearinginTimeMagazineNewYorkPostDeutscheWelleandSydneyMorningHerald.liquid-air-03BeforethestorybrokeAFSwasasmallfirmlookingforinvestorstotaketheirideafromthedemonstratorstagetothenextlevelofproductiona6milliontonne-a-dayplant.Threedays30000hitsontheAFSwebsiteandhundredsofphonecallslaterTonyMarmontwhofoundedAirFuelSynthesistoldhislocalnewspaperWevehadbusinesspeoplemeninthestreetretiredpeoplepeoplefromeverycornerofbusinesscalling.ItsbeenmorethanIevercouldhavedreamed.Ifeeloverwhelmedbyit.Iveneverseenareactionlikethisbefore.Imhopingthatpeoplewilltakealicenceoutonthetechnologyandbuildthemallovertheworld.5Comments1.1GeoffGlover02NovThekeyfeatureoftheconceptofusingliquidairwasnotaddressedi.e.thesystemelectricalenergycapacityperunitvolumeofliquidair.Thesecondparagraphofthereportsuggeststhatitcouldbeusedtoaugmenthydro-electricresources.Inthisrespectitisworthbearinginmindthatourentirepumpedstoragehydrocapacitycanprovideupto2.8GWforonly5hoursthendropsto1.1GWandfinallyrunsoutofwaterafter22hours.Sowhatvolumeofliquidairwouldberequiredtoproducesay1.1GWofpowerfor22hoursIsuspectanawfullotofliquidairwouldberequiredbuttheanswertothiswillgiveaclearindicationoftheviabilityofairforanythingotherthanlocalstandbyuseintheeventofawithdrawalofmainssupplies.Unfortunatelyanti-cyclonestendtolastformorethanadayortwoandareoftenaccompaniedbyfullcloudcover2.2MartinJoinson31OctThekeythingwithanyenergystoragemethodistoputthenumbersintoseehowefficientitisandthinkthroughwhatitsfor.Forsmoothingoutsupplyanddemandduringthedayitshardtobeatbatteries.Icouldrunmyhousefor3daysonthebatteriesofmytwoelectriccars.ImlookingforwardtogettingasmartmetersoIcandomybitbysellingelectricitywhenitsexpensiveandrechargingfrommyPVarrayorwhenelectricityischeap.IfthereareenoughsourcesoflowgradeheatthencryogenicairmayhaveaparttoplaybuthowmuchenergyisusedkeepingitcoldIsitonlyforshorttermstorageHydrogenmighthavearoleforsummertowinterstorage.Istruggletoseewhatthesyntheticpetrolisfor.Forthesameamountofelectricityyoucango4timesfurtherinanelectriccarthanahydrogenfuelcellcar.Givenhowinefficientpetrolcarsaretheratiowillbeenormoussoitonlymakessenseifyouhaveanenormoussurplusofelectricity.3.3LeslieBancroft31OctThearticleoutlinestwoveryexcitingdevelopmentsforwhichthedevelopersaretobecongratulated.HoweverwhataboutusingoffshorewindturbinestoproducehydrogenandoxygenfromseawaterbyelectrolysisthehydrogenthentobepipedashoremaybeusingredundantgaspipelinesforstorageandsubsequentusefordirectfiringinpowerstationboilersSincehydrogenisnotsuitableforuseinsmallscalecommercialanddomesticappliancesbecauseofitshighburningvelocityandlowvolumetricenergydensitycalorificvaluecoulditbereformedwithsequesteredcarbondioxidefromconventionalpowerstationstoformasubstitutefornaturalgasusingaprocesssimilartothatnowbeingproposedtoproducemotorfuelThusthewholeprocesswouldbecarbonneutral.4.4TomStanley31OctExcellentarticle.TheOrkneyscurrentlyhaveexcesspowerproducedbywindturbinesforwhichthegridconnectionisinsufficientthiscouldbeidealforthem.Thefactthatthisisscaleablemeanstherearemanypotentialusesofthistechnology.5.5KeldFenwick30OctYettwomoregoodideastoaddtothealreadylargeportfolioofenergystorageandenergyproductionconversionsystems.Weneedaseriouscostbenefitevaluationofthepotentialofthecontendersandthemostpromisingonesneedtobepursuedurgentlywiththenecessarydeterminationandavailablefinancialresourcestobringthemtomarket.IfwedonottakeacommercialapproachtotheproblemthereisarealdangerthatnoneofthemwillmatureasBritishtechnologiesandothercountrieswillreapthebenefits.Wewillthenagainbeinthehumiliatingpositionofbuyingtechnologywhichoriginatedinthiscountry.WhobetterthantheIMechEtosetupthisevaluationprocess