Fuel Consumption - Briggs & Stratton 202826GS Installation And Start-Up Manual

Fuel Consumption

Estimatedfuelsupplyrequirementsathalfandfullloadfor
naturalgasandLPvaporfuelsareshownbelow.
Natural Gas
1/Load FullLoad
18kW 160C 93C
160,000B 93,000B
20kW N/A
N/A
C=Cubicfeetperhour
B=BTU'sperhour
Fuel Pipe Sizing
Thetablesbelowprovidethemaximumcapacityofpipein
cubicfeetofgasperhourforgaspressuresof0.5psior
lessandapressuredropof0.3in.watercolumn.Specific
gravityofgasisshown.
Listedvaluescompensateforanominalamountof
restrictionfrombends,fittings,etc.Ifanunusualnumberof
fittings,bends,orotherrestrictionsareused,pleasereferto
federalandlocalcodes.
NPT 10ft 15ft
3/4" 346 93
1" 653 549
Natural Gas Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=0.65
NPT 10ft 15ft
3/4" 77 19
1" 48 360
Liquid Propane (LP) Gas Pipe Size - Gas Flow chart, in cubic feet per hour, specific gravity=1.50
Required Propane Tank Size
Therequiredsizeofthepropanetankatvarious
temperatureswhenkeptatleasthalffullisshownbelow
inthechart.Giventhegaswithdrawalrateandthelowest
averagewintertemperature,aninstallercanspecifythe
requiredLPstoragetanksize.
Withdrawal Rate
50CFH
100CFH
150CFH
00CFH
300CFH
1
LP Vapor
1/Load FullLoad
N/A N/A
N/A N/A
N/A 70.4C 141.5C
N/A 176,85B 353,650B
20ft 30ft
40 19
446 360
20ft 30ft
158 16
93 36
32° F 20° F
115 115
50 50
300 400
400 500
750 1000
Physical Properties
NormalAtmosphericState
BoilingPoint(in°F):
Initial
End
HeatingValue:
BTUpergallon(NetLHV*)
BTUpergallon(gross**)
Cubicfeet(gas)
Density***
Weight†
OctaneNumber:
Research
Motor
* LHV(LowHeatValue)isthemorerealisticrating.
** Grossheatvaluedoesnotconsiderheatlostintheformofwater
duringcombustion.
*** Densityisgivenin"CubicFeetofGasperGallonofLiquid".
† Weightisgivenin"PoundsperGallonofLiquid".
40ft 50ft 60ft
163 145 13
307 74 50
40ft 50ft 60ft
107 95 87
0 180 164
10° F 0° F
115 50
50 400
500 500
750 1000
1500 000
LP Vapor Natural
Gas
-44
-44
83,340
91,547
,500
36.39
4.4
110+
97
70ft 80ft 90ft
10 113 106
30 11 197
70ft 80ft 90ft
79 74 69
151 139 19
-10° F -30° F
50 400
500 1000
1000 1500
100 000
500 4000
BRIGGSandSTRATTON.COM
Gas
Gas
-59
-59
63,310
1,000
57.75
.65
110+
100ft
99
187
100ft
65
13
-40° F
600
1500
500
500
5000