SubmittedbytheexpertfromTheNetherlandsInformaldocumentGRSG-114-06-Rev.1
(114thGRSG,9-13April2018
Agendaitem6(b))
Revised proposalforamendmentstoUNRegulationNo.110 (CNG/LNGvehicles)
Uniformprovisionsconcerningtheapprovalof:
I. Specificcomponentsofmotorvehiclesusingcompressednaturalgas(CNG)and/orliquefied naturalgas(LNG)intheirpropulsionsystem;
II. Vehicleswithregardtotheinstallationofspecificcomponentsofanapprovedtypefortheuseof
compressednaturalgas(CNG)and/orliquefiednaturalgas(LNG)intheirpropulsionsystem.
A.Proposalforamendmentstopermituseofgassystemtofuela generatortoprovideelectricalpower
Theaimofthisproposalistoallowthevehiclegassystemtobeusedtoprovidegaseousfueltoa generatortoprovideelectricalpowertoaccessoriesorothersystemsonthevehicle.
Theproposalissimilartothealreadypermitteduseofthegassystemtoprovidegaseousfueltoa
refrigerationsystemonthevehicle.(ECE/TRANS/WP.29/GRSG/2017/9.)
Theproposedamendmentsaremarkedinboldandunderlined.
AlladaptationsarebasedonUNRegulationNo.110.01,consolidateduptoSupplement6(i.e.Revision3,amendment6).
Paragraphs18.1.7.1.and18.1.7.2.,amendtoread:
"18.1.7.1. Notwithstanding the provisions of paragraph 18.1.7., vehicles may be fitted with an extra engine for use on the vehicle(e.g. for cooling, heating etc.) heatingsystemtoheatthepassengercompartmentand/ortheloadareaorarefrigeration system to cool the cargo compartment or agenerator system to provide electrical
powerwhichisconnectedtotheCNGand/orLNGsystem.
18.1.7.2.The heating or refrigeration system or generator system second engine referred to in paragraph 18.1.7.1.shallbepermittedif, in theviewoftheTechnicalServicesresponsiblefor conductingtypeapproval,theheatingorrefrigerationsystemorgeneratorsystemsecond engine is adequatelyprotectedandtherequiredoperationofthenormalCNGand/orLNGsystem isnotaffected."
Paragraph18.5.1.3.,amendtoread:
"18.5.1.3.Notwithstandingtheprovisionsofparagraph18.5.1.2.
(a) Theautomaticcylindervalvemaystayinanopenpositionduringcommandedstop phases;and
(b) Inthecasewhereafirealarmsystemisinstalled intheautonomous CNGand/or LNGheatercompartment,theautomaticvalve(s)maybeopenedbyan electronic controlunittopermitthewarmingoftheengine.Anydefectorfailureofthesystem shallcausetheautomaticvalveofthecylindersupplyingtheheatingsystemtoclose; and
(c) In the case where a fire alarm system is installed in the refrigeration system compartmentofthecargocompartment,theautomaticvalve(s)maybeopenedbyan electroniccontrolunittopermitthecoolingofthecargocompartment.Anydefector
failureofthesystemshallcausetheautomatic valveofthecylindersupplyingthe refrigerationsystemtoclose.
(d)Inthecasewherea firealarmsystemisinstalledinthegeneratorsystemsecond engine compartment, theautomatic valve(s) maybeopened byanelectronic controlunittopermit theprovision ofelectrical power. Anydefect orfailure ofthesystem shall cause theautomatic valve ofthecylinder supplying therefrigerationsystemtoclose."
Annex1A
Items1.2.4.5.15.to1.2.4.5.15.6.,amendtoread(footnote1remainsunchanged): "1.2.4.5.15.ConnectiontoCNG/LNGsystemforheatingsecond engine system:yes/no1
OrconnectiontoCNG/LNGsystemforrefrigerationsystem:yes/no1
OrconnectiontoCNG/LNGsystemforgeneratorsystem:yes/no1
1.2.4.5.15.1.Make(s)oftheheatingsecond enginesystem:......
1.2.4.5.15.2.Type(s)oftheheatingsecond enginesystem:......
1.2.4.5.15.3.Descriptionanddrawingsofinstallationoftheheatingsecond enginesystem:......
1.2.4.5.15.4.Make(s)oftherefrigerationsystem:......
1.2.4.5.15.5.Type(s)oftherefrigerationsystem:......
1.2.4.5.15.6.Descriptionanddrawingsofinstallationoftherefrigerationsystem:...... "
Insertnewitems1.2.4.5.15.7.to1.2.4.5.15.9.,toread:
"1.2.4.5.15.7.Make(s)ofthegeneratorsystem:......
1.2.4.5.15.8.Type(s)ofthegeneratorsystem:......
1.2.4.5.15.9.Descriptionanddrawingsofinstallationofthegeneratorsystem:...... "
Annex1B
Item1.2.4.5.15.,amendtoread(footnote2remainsunchanged):
"1.2.4.5.15.ConnectiontoCNG/LNGsystemforheatingsecond enginesystem:yes/no2
OrconnectiontoCNG/LNGsystemforrefrigerationsystem:yes/no2
OrconnectiontoCNG/LNGsystemforgeneratorsystem:yes/no2"
Insertnewitems1.2.4.5.15.7.to1.2.4.5.15.9.,toread:
"1.2.4.5.15.7.Make(s)ofthegeneratorsystem:......
1.2.4.5.15.8.Type(s)ofthegeneratorsystem:......
1.2.4.5.15.9.Descriptionanddrawingsofinstallationofthegeneratorsystem:"
B.Justification
TheabovementionedproposalsaremadeupontherequestoftheLNG/CNGmarket.
LNGisstoredinvehiclefueltanksatverylowtemperatures:between-162OCto-130OCistypical. Overtime,ifnotusedbydrivingthevehicle,theLNGcan warmandthetanksventto preventover pressure,releasinggastotheatmosphere.
Thisproposalistoallow theuseofageneratortousesomegasinthesecircumstancesinorderto reducethetankpressureandtopreventordelayventing.
Thegeneratorcouldalsopowerothersystemsonthevehicleprovidingovernightpowerforthedriver insleepercabs,ortomaintainbatterychargeduringhighelectricalpowerusewithloadingorlifting equipmentetc.
Bytheabovegivenrequirements,theNetherlandsproposetomakethistechnologyavailableforthe market.
By the wish of UK mentioned in the GRSG 114 the document is adjusted with second engine to cover all external technology (eg. Heating system, cooling system, electrical generator or further engine).
By the wish of Japan the description “for use on the vehicle” is added to prevent that for instance the second engine is used for energy supply to external use.