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FUEL SAVINGS ON DIESEL GENERATOR USING METHANOL FUELED REFORMER TO SUPPLEMENT DIESEL.
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Fueling internal combustion engine with H2 rich reformate
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YELLOW BOXES CAN BE CHANGED BY USER
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diesel cost/h ($)
methanol cost/h ($)
hours of operation
Cost of Reformer
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INPUT PARAMETERS
10.4512$25,000
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NO REFORMERGenerator KWlitres/h dieselcost/hcost/dayCost per yearREFORMERlitres/diesel
methanol litres
cost/hcost/dayCost per year
Old price per kw/h
New price per KW/h
FUEL SAVINGS
FUEL SAVINGS %
Estimated savings on exhaust treatmentPayback months running 12 hours per day
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half load162.4$2.40$28.80$10,512.00half load031.3516.2$5,9130.300.17$4,599.0043.75%$11,00036.5
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75% load163.5$3.50$42.00$15,330.00half load132.3528.2$10,2930.290.20$5,037.0032.86%$11,00033.4
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full load164.3$4.30$51.60$18,834.0075% load233.3540.2$14,6730.270.21$4,161.0022.09%$11,00040.4
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half load203$3.00$36.00$13,140.00half load0.33.51.87522.5$8,2130.300.19$4,927.5037.50%$11,00034.1
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75% load204.3$4.30$51.60$18,834.00half load1.53.53.07536.9$13,4690.290.21$5,365.5028.49%$11,00031.3
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full load205.4$5.40$64.80$23,652.0075% load2.53.54.07548.9$17,8490.270.20$5,803.5024.54%$11,00028.9
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half load304.8$4.80$57.60$21,024.00half load0.842.631.2$11,3880.320.17$9,636.0045.83%$13,00014.9
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75% load307$7.00$84.00$30,660.0075% load1.55.53.97547.7$17,4110.310.18$13,249.5043.21%$13,00010.9
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full load308.6$8.60$103.20$37,668.00full load3.15.55.57566.9$24,4190.290.19$13,249.5035.17%$13,00010.9
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half load609$9.00$108.00$39,420.00half load3.55.55.97571.7$26,1710.300.20$13,249.5033.61%$15,0009.1
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75% load6012.7$12.70$152.40$55,626.0075% load7.25.59.675116.1$42,3770.280.22$13,249.5023.82%$15,0009.1
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full load6016.1$16.10$193.20$70,518.00full load10.65.513.075156.9$57,2690.270.22$13,249.5018.79%$15,0009.1
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NO REFORMERGenerator KWlitres/hcost/hcost/dayCost per yearREFORMERlitres/diesel
methanol litres
cost/hcost/dayCost per yearSAVINGS
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half load12017.3$17.30$207.60$75,774.00half load11.85.514.275171.3$62,5250.290.24$13,249.5017.49%$17,0007.2
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75% load12024.1$24.10$289.20$105,558.0075% load18.65.521.075252.9$92,3090.270.23$13,249.5012.55%$17,0007.2
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full load12032.1$32.10$385.20$140,598.00full load26.65.529.075348.9$127,3490.270.24$13,249.509.42%$17,0007.2
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NO REFORMERGenerator KWlitres/hcost/hcost/dayCost per year
2 REFORMERS
litres/diesel
methanol litres
cost/hcost/dayCost per yearSAVINGS
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half load12017.3$17.30$207.60$75,774.00half load6.31111.25135$49,2750.290.19$26,499.0034.97%$17,00014.9
note: paypack is for 2 reformers
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75% load12024.1$24.10$289.20$105,558.0075% load13.11118.05216.6$79,0590.270.20$26,499.0025.10%$17,00014.9
note: paypack is for 2 reformers
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full load12032.1$32.10$385.20$140,598.00full load21.11126.05312.6$114,0990.270.22$26,499.0018.85%$17,00014.9
note: paypack is for 2 reformers
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OTHER SAVINGS
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Adding H2 rich gas to the air intake of the engine prevents formation of NOx gases and hence emission control catalysts are not required
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Emission controlCost rangereplacement interval
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Diesel oxidation catalyst (DOC)$1000-$30003 years
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Selective catalytic reduction (SCR) converts NOx to nitrogen using urea as a reductant. Marketing name: Adblue$10000-$250003 years
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Total redundant catalyst cost $11000-$280003 years
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Overall hardware savings
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Example, 60KW generator:
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Cost of reformer$25,000.00
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Saved on redundant catalytic converter
$11,000.00
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1 year fuel savings$10,000.00
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Payback period:
1 Year
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Warranty 3 years or 8000 hours whichever is longer
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