844 CNG

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Fuel Economy Data (Gaseous Fuels)

Date: 2002-01-11
Run Number: 1
Personnel: S.C. & G.M.
Test Direction: CCW
Ambient Temperature (°F): 37
Humidity (%): 70
SLW (lbs): 12540
Wind Speed (mpg) & Direction: 10/WNW
Barometric Pressure (in.Hg): 30
Cycle Type Run Time (min:sec) Cycle Time
(min:sec)
Fuel Temperature (°F) Total Fuel used (SCF)
Start Finish Start
CBD #1 0 8:44 8:44 59.7 41.3
ART #1 0 4:01 4:01 44.6 37.9
CBD #2 0 8:39 8:39 47.7 40.9
Art #2 0 4:04 4:04 43.7 37.2
CBD #3 0 8:38 8:38 47.9 39.7
Commuter 0 6:11 6:11 46.2 47.3
Total Fuel: 244.3 SCF
20 minute idle: 18.8 SCF
No Load Flow Rate at Idle = 0.88 SCFM No Load Flow Rate at Full Throttle = 15.5 SCFM
Heating Value = 1008.1 BTU/LB
Comments:

Date: 2002-01-11
Run Number: 2
Personnel: S.C. & G.M.
Test Direction: CW
Ambient Temperature (°F): 37
Humidity (%): 70
SLW (lbs): 12540
Wind Speed (mpg) & Direction: 8/WNW
Barometric Pressure (in.Hg): 30
Cycle Type Run Time (min:sec) Cycle Time
(min:sec)
Fuel Temperature (°F) Total Fuel used (SCF)
Start Finish Start
CBD #1 0 8:38 8:38 62.2 36.3
ART #1 0 4:10 4:10 50.7 50.7
CBD #2 0 8:35 8:35 57.4 36.5
Art #2 0 4:11 4:11 54.0 34.1
CBD #3 0 8:36 8:36 53.9 34.1
Commuter 0 6:13 6:13 53.0 42.5
Total Fuel: 234.2 SCF
20 minute idle: SCF
No Load Flow Rate at Idle = SCFM No Load Flow Rate at Full Throttle = SCFM
Heating Value = 1008.1 BTU/LB
Comments:

Date: 2002-01-14
Run Number: 3
Personnel: S.C. & B.S.
Test Direction: CCW
Ambient Temperature (°F): 38
Humidity (%): 74
SLW (lbs): 12540
Wind Speed (mpg) & Direction: 5/NE
Barometric Pressure (in.Hg): 30
Cycle Type Run Time (min:sec) Cycle Time
(min:sec)
Fuel Temperature (°F) Total Fuel used (SCF)
Start Finish Start
CBD #1 0 8:40 8:40 52.6 41.8
ART #1 0 3:43 3:43 39.2 35.8
CBD #2 0 8:23 8:23 42.7 37.9
Art #2 0 3:49 3:49 36.0 35.6
CBD #3 0 8:20 8:20 45.6 39.2
Commuter 0 5:53 5:53 45.8 45.0
Total Fuel: 235.3 SCF
20 minute idle: SCF
No Load Flow Rate at Idle = SCFM No Load Flow Rate at Full Throttle = SCFM
Heating Value = 1008.1 BTU/LB
Comments:

Date: 2002-01-14
Run Number: 4
Personnel: S.C. & B.S.
Test Direction: CW
Ambient Temperature (°F): 40
Humidity (%): 74
SLW (lbs): 12540
Wind Speed (mpg) & Direction: 5/NE
Barometric Pressure (in.Hg): 30
Cycle Type Run Time (min:sec) Cycle Time
(min:sec)
Fuel Temperature (°F) Total Fuel used (SCF)
Start Finish Start
CBD #1 0 8:22 8:22 46.6 35.7
ART #1 0 3:53 3:53 43.6 33.7
CBD #2 0 8:12 8:12 45.1 36.5
Art #2 0 3:51 3:51 40.3 34.5
CBD #3 0 8:20 8:20 46.0 36.6
Commuter 0 6:00 6:00 48.8 42.1
Total Fuel: 219.1 SCF
20 minute idle: 19.0 SCF
No Load Flow Rate at Idle = 0.88 SCFM No Load Flow Rate at Full Throttle = 16.26 SCFM
Heating Value = 1008.1 BTU/LB
Comments: