P. 1



# OAR Box 1830 Prepped byOllie Stewart



### Document

Number: 

# 18 ) IV-B-14 Docket Number: 

# A-87-1 1

Printed 11/13/20087:20:51 AM Sheet 18of 232«-V % .'

<?»**% 

# MSB, '

' « PRO* 0 P. 2 

# ff-6-/y UNITE D STATE S ENVIRONMENTA LPROTECTIO N AGENC Y AN N ARBOR . MICHIGA N 4810 5

OFFIC E O F AI R AN D RADIATIO N 

### DE C

### I3 

## !98 8

MEMORANDU M SUBJECT :

FROM : 

### To : Result s Fro mPhase s 4 and 5 o f Tes t Pla nfo r Passiv e

Onboar d Refuelin g Contro l Syste m

F . Pete r Hutchins / Mechanica l Enginee r Standard s Developmen t and Suppor t Branc h Charle s L . Gray , Jr. , Directo r Emissio nContro l Technolog yDivisio n Thi s mem o i s a follo wu p o nth e mem o date dAugus t 16 , 1988 . I t summarize s th e result s o f Phas e 4 andPhas e 5 testin g performe d b

yE& D i nrespons e t o a Jun e 14 , 198 8 mem o fro mSDSB . Phas e 4 Th e objectiv e o f thi s tes t phas e wa s t o evaluat e th e fue l tank fil l characteristic s o f a stoc k tank ando f th e EPA passiv e onboar d refuelin g tank unde r dissimila r dispense d fuel/tan k temperatures . Th e desire ddispense dfue l temperatur e and 1 0 percen t tank fue l temperatur e wer e 70° F and100° F respectively . Fue l v/it hanRV P o f 1 1 1/ 2 ps i wa s require dt o b e used . Th e specifie d fue l dispensin g rat e wa s 1 0 gpm . An OP W11 Anozzl e wa s use di nphas e 4 testing . Fuelin g wa s requeste d t o b e performe d fro m1 0 percen t tank volum e t o a t leas t 9 5 percen t tank volume . Fo r the stoc k tan k test , a stoc k tank , fue l fille r pip e assembl yand tank sendin g uni t wer e use d(G Mcomponents) . Th e stoc k sendin g uni t incorporate dth e vapo r picku p andorifice . Astoc k 1. 5 lite r ca : Iste r wa s used . Fo r tes t purpose s th e stoc k caniste r wa s connecte d t o th e fue l tank b yapproximatel y 1 1 fee t o f 5/16 " diamete r tubing .P. 3



### -2

- I nth e cas e o f th e passiv e onboardsystem , th e EP A modifie d tank , fille r pip e assembl yan d "blue " ven t valv e wer e used . A4 lite r caniste r wa s connecte d t o th e ven t valv e b y approximatel y2 1/ 2 fee t o f 5/8 " diamete r tubing . Th e caniste r t o purg e contro l valv e line wa s simulate db yapproximatel y1 1 fee t o f 5/16 " diamete r tubing connecte dt o th e 5/8 " tubing b ya T a t the canister . Th e "engine " en d o f th e 5/16 " tubing wa s plugge d t o simulat e a close d purg e contro l valv e a s woul d exis t during fueling . Phas e 4 tes t result s ar e show ni nTabl e 1 . Bot htank s fuele d successfull yduring thes e two tests . Phas e 5 Phas e 5 o f th e testing requeste d t o b e performe db yE & D focuse d onth e fueling performanc e o f thre e commercia l fue l nozzles . Informatio ncollecte d fro mnozzl e manufacturer s b y EPAove r approximatel yth e las t yea r indicate s tha t th e nozzle s selecte d fo r testing represen t betwee n8 0 t o 8 5 percen t o f th e ne wnozzl e market . Th e nozzle s t o b e evaluate d wer e anOP W 11A , anEmco-Wheato nA200 0 an da Husk

y1+X . Th e performanc e o f th e OP W11 Anozzl e wa s investigate dwit hbot hth e EP Asimpl e onboar d systeman

d a stoc k G

Msystemfro

mwhic hth e EP Asystem ha d bee nderived . Prematur e shut-offs , fina l shut-of f an dspi t bac k wer e t o b e evaluate d a t flowrate s o f 5 gpman d 1 0 gpm using th e EP Apassiv e onboardsystem . Refueling emissio n measurement s wer e no t t o b e performed . Al l fueling operation s wer e initiate d wit h1. 5 gallon s (approximatel y1 0 percent ) o f fue l i nth e tank . Th e reporte d result s ar e summarize d i nTabl e 2 . Fo r al l thre e nozzles , fueling int o th e simpl e onboar d systemwer e performe dwithou t eithe r prematur e shut-offs , spitback , o r spillag e o f fuel . Thre e o f th e four test s performe do nth e stoc k systemincurre d eithe r a prematur e shut-of f o r a spill . Attachments : Table s 1 an d2

6431 WTabl e1 Phas e4 . Dissimila r Temperature s Configuratio n Fue l RV P Tan k (psi ) Temp.(°F ) Dispense d Fue l Temp(°F ) Volum e

Dispensed(gal ) Comment s Stoc k 11• 5

Passiv e System11. 5 100. 4

102. 0 71. 4

70. 0 16. 2

13. 9 N o prematur e

shut-off , spitback , o r spil l N o prematur e shut-off , spitback , o r spil lTabl e 2 Phas e 5 . Nozzl e Characteristic s

Dat e Nozzle / Fuelin g Rat e RV P

Tank (gpm ) (psi ) Volum e Dispense d (gal ) Temperature s Tank ; Fuel(°F ) Comment s 8-18-8 8 OPW-llA/Mod . 5. 0 8-18-8 8 OPW-llA/Mod . 5. 0 8-18-8 8 OPW-llA/Mod . 10. 0 8-23-8 8 OPW-llA/Mod . 10. 0 8-24-8 8 OPW-llA/Mod . 10. 0 8-30-8 8 OPW-llA/Stoc k 5. 0 8-30-8 8 OPW-llA/Stoc k 5. 0 8-31-8 8 OPW-llA/Stoc k 10. 0 8-31-8 8 OPW-llA/Stoc k 10. 0 9. 0 8. 8 8^ 8 8. 9 8. 9 9. 0 9. 0 9. 0 9. 0 14. 9

14. 5 13. 8 13. 8 14. 5 15. 8 15. 3 15. 3 15. 2 81.5 ; 81. 1 N o prematur e shut-off . N o spill .

80.5 ; 80. 2 N o prematur e shut-off . N o spill . 80.0 ; 79. 9 N o prematur e shut-off . N o spill . 80.2 ; 82. 2 N o prematur e shut-off . N o spill . 80.2 ; 81. 7 N o prematur e shut-off . N o spill . 80.5 ; 79. 3 Prematur e shut-of f @5. 4 gal . N o spill . 81.0 ; 81. 0 N o prematur e shut-off . N o spill . 81.5 ; 82. 0 Prematur e shut-of f @ 0. 1 gal . (nozzl e

position) . N o spill . 81.5 ; 79. 7 N o prematur e shut-off . 1/ 2 cup spill .

8-25-8 8 Emco-Wheato n

A2000/Mod . 8-25-8 8 Emco-Wheato n

A2000/Mod . 8-26-8 8 Emco-Wheato n

A2000/Mod . 8-26-8 8 Emco-Wheato n

A2000/Mod . 5. 0

5. 0 10. 0 10. 0 9. 1

8. 9 8. 9 8. 9 15. 6

14. 6 14. 6 14. 3 80.5 ; 80. 1

81.5 ; 79. 9 81.0 ; 80. 4 81.9 ; 81. 2 N o prematur e shut-off . N o spill .

N o prematur e shut-off . N o spill . N o prematur e shut-off . N o spill . N o prematur e shut-off . N o spill .

9-7-8 8 9-7-8 8 9-7-8 8 Husky

Mod . Husk y Mod . Husky Mod . 1+X / 1+X / 1+X / 5. 0

5. 0 10. 0 9. 0

9. 0 9. 0 14. 1

15. 0 14. 7 81.3 ; 81. 9 N o prematur e shut-off . N o spill .

81.0 ; 80. 4 N o prematur e shut-off . N o spill . 81.0 ; 81. 3 N o prematur e shut-off . N o spill .