FARM POWER AND MACHINERY. 



249 



Motive Power 



Gas Engine on 

 Producer Gas 



Table of Horse-Power Costs 



Rate of Fuel 

 Consumption 



In pounds per 

 H. P. Hour 



.8 

 1.00 

 1.25 

 1.50 



.0012 

 .0015 

 .0019 

 .0023 



.0016 

 .0020 

 .0025 

 .0030 



.0020 

 .0025 

 .0031 

 .0037 



.0024 1 .0028 



.0030 1 .0035 



.0037 ! .0044 



.0044 .0053 



Gas Engine on 

 Natural Gas 



In Cubic Feet 

 per H. P. Hour 



9 

 10 

 11 



12 



Cost of Natural Gas 1,000 Cubic Feet 

 $0.15 i $0.20 $0.25 I $0.30 



.0014 .0018 



.0015 .0020 



.0017 .0022 



.0018 I .0024 



.0023 

 .0025 

 .0028 

 .0030 



.0027 

 .0030 

 .0033 

 .0036 



Gas Engine on i In Cubic Feet 



Illiuninating ' per H. P. Hour 



Gas 



15 

 17 

 20 



Cost of Gas per 1,000 Cubic Feet 

 $0.60 , $0.70 $0.80 $0.90 I $1.00 



.0090 .0105 



.0102 ! .0119 

 .0120 I .0140 



.0120 

 .0136 

 .0160 



.0135 

 .0153 

 .0180.. 



.0150 

 .0170 

 .0200 



Electric Motor 

 85% Efficiency 

 of Wiring 



In Kilowatts 

 per H. P. Hour 



0.878 



Cost of Electricity per Kilowatt Hour 



$0.02 I $0.03 

 .0175 i .0263 



$0.04 

 .0351 



$0.05 

 .0439 



$0.07 

 .4106 



