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Dual Fuel Engine Conversion JFE Engineering Corporation 18 May 2010.

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Presentation on theme: "Dual Fuel Engine Conversion JFE Engineering Corporation 18 May 2010."— Presentation transcript:

1 Dual Fuel Engine Conversion JFE Engineering Corporation 18 May 2010

2 -2- Engine Cycle Intake CompressionCombustion IntakeCompression Combustio n Gas Admission Pilot Injection Advantages : DF engines can operate at 100% load using only diesel oil in case of need Fuel gas : 95% Fuel oil : 5%

3 -3- Features of Dual Fuel Engine

4 -4- Reductions Operation Cost Approx. 30% less *Reduction in Operation Cost will fluctuate because of the operation conditions of engines and the price level of fuel oil and natural gas in a project site. CO 2 Emission30% less SOx Emission95% less NOx Emission20% less (comparing with diesel oil firing)

5 -5- After conversion Main Fuel …[Natural Gas] Pilot Fuel…[Diesel Oil] After conversion Main Fuel …[Natural Gas] Pilot Fuel…[Diesel Oil] Present Main Fuel … [Diesel Oil] Present Main Fuel … [Diesel Oil] What we do? Dual Fuel Engine Diesel Engine Converting diesel engine power plants to dual fueled engine power plant

6 -6- Dual Fuel Engine Conversion Typical samples of the Dual Fuel Engine (Carburetor Type) Exhaust System Air/Gas Intake System Fuel Injection System Fuel Injection System Cylinder Head Piston Connecting Rod Cylinder Head Piston Connecting Rod Before Conversion After Conversion

7 -7- Major Modified Engine Parts and Auxiliaries for Conversion Engines parts - Gas admission system, knock detector - Gas admission system, knock detector - Air/Fuel ratio control system - Air/Fuel ratio control system - Oil mist ventilation system - Oil mist ventilation system - Piston ring, Piston pin metal - Piston ring, Piston pin metal - Fuel injector, Plunger assembly, Fuel governor - Fuel injector, Plunger assembly, Fuel governor - Cylinder head, Piston, Liner, Charge air duct, T/C matching - Cylinder head, Piston, Liner, Charge air duct, T/C matching Engines parts - Gas admission system, knock detector - Gas admission system, knock detector - Air/Fuel ratio control system - Air/Fuel ratio control system - Oil mist ventilation system - Oil mist ventilation system - Piston ring, Piston pin metal - Piston ring, Piston pin metal - Fuel injector, Plunger assembly, Fuel governor - Fuel injector, Plunger assembly, Fuel governor - Cylinder head, Piston, Liner, Charge air duct, T/C matching - Cylinder head, Piston, Liner, Charge air duct, T/C matching Plant Auxiliaries - Gas supplying system - Gas supplying system - Safety device for gas system - Safety device for gas system - Engine control panel - Engine control panel - Remote monitoring system - Remote monitoring system Plant Auxiliaries - Gas supplying system - Gas supplying system - Safety device for gas system - Safety device for gas system - Engine control panel - Engine control panel - Remote monitoring system - Remote monitoring system

8 -8- Schematic Diagram for DF System A Main Controller Fuel, Gas S Charged Air Turbocharger Air Air Filter Water Air Cooler Exhaust Gas Gas Admission Valve Valve Controller Rev. Pick up Shut off Valve Gas Gas Press. Regulating Valve IDO Tank Pump FO Injection Pump Cam A Piston DO Injector Governor To Turbocharger


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