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CONTENTS
Introduction Conversion of Petrol Engine to gas engineConversion of Diesel Engine to Dual fuel mode Conversion of Diesel Engine to 100 % Biogas (S.I.Mode)Conclusions
Technology Developed By
Indian Institute of Technology Delhi Under
MGIRI Project (Prof.R.R.Gaur)Mahatma Ghandhi Institute of Rural Industrialisation
Wardha
with Dr. G.P.Govil
MOTIVATION
To provide power in each house from renewable source of energy in villagesTo provide drinking water in villages To create employment in rural areasTo have sustainable growthTo provide an affordable conversion kit to convert diesel engine to gaseous engine on site
INVERTER
Balloon Biogas DigesterBiogas Storage Balloon
Biogas Generator
Concept for Domestic Power Supply in Rural Area
Power Need
Village Household requirements 1-10 KWDairy requirement 20-50 KWVillage cluster requirements >100 KW
CONVERSION OF PETROL ENGINE
TO GASEOUS FUEL ENGINE
Conversion of Petrol Engine to Gaseous EngineGas –Air MixingCompression Ratio
LPG, Natural Gas, Biogas, Producer gas CR=10-12Petrol CR=7.7-9.5
More Wear & Tear because of less lubricationConversion Leads to DERATING of engine
Reasons for Engine Derating
Lower calorific value of BiogasLower volumetric efficiencyHigher spark advance due to lower burning rate of Biogas
Conversion of Diesel Engine to
Gaseous fuel Engine
Modification of Engine-Dual fuel Mode Using Diesel
Gas CarburettorArrangements for supply of Diesel
Dual fuel operation (Gas+ Diesel) Ignition by pilot fuel injection (Diesel)
Schematic Diagram for Conversion to Dual Fuel Mode using Diesel and Biogas
VENTURIDIESEL INJECTOR
DIESEL
FUEL FILTER
AIR FILTER
MANUAL GAS CONTROL VALVE
BIO – GASDIGESTER
GOVERNORFUEL PUMP
ENGINE
GAS CONTROL VALVE
Problems associated with Dual-Fuel Engine
Dual Fuel needs Diesel The Fuel Injector gets over heated when Diesel flow is reduce to 10 to 15 %It is more severe with purified Bio-gas (Methane 95 %)Check for injector nozzle.
Conversion of Diesel engine to
100% Biogas Engine (S.I.Mode)
Biogas Engine KitThe kit consists of
Gas carburetor for air gas mixing, Ignition Mechanism for generating spark Governing Mechanism
Biogas Engine with conversion kit
Modifications of the Engine
Removal of fuel injection pump, fuel lines and injector,Modification in cylinder head for installation of spark plug in the injector hole,Mounting of an ignition systemInstallation of Gas carburetor,
Schematic Diagram for Conversion to Biogas Engine
VENTURISpark Plug
AIR FILTER
MANUAL GAS CONTROL VALVE
BIO – GASDIGESTER
SPEED CONTROLLED BY GOVERNOR IN CASE OF OVERSPEEDGOVERNOR
Ignition Mechanism(Battery ignition / Magneto ignition)
ENGINE
Gas Valve & Air Gas Mixing
Modified Cylinder Head & Spark Plug
Ignition System
Battery Ignition SystemMagneto Ignition System
Battery Ignition System
BatteryIgnition SystemContact PointCamSpark Plug
Conversion Kit for Battery Ignition System
Converted Gaseous Engine with Battery Ignition System
Magneto Ignition System
MagnetoIgnition SystemSpark Plug
Engine kit with Magneto Ignition system
Magneto Mounted on Engine
Diesel Engine Converted To 100% Biogas Engine
Flexible Modes of engine operation
100% Biogas Dual Fuel Mode Diesel Mode
Technical Details
Gas Consumption25kg of dung is required to generate 1 m3 of the gas The consumption of the gas is 0.8 -1.0 m3 / kWhr .
Power of the EngineDiesel engines converted to Biogas engine will get derated. Power generated by the converted biogas engine will be approximately 50%-55% in comparison to original diesel engine
Power v/s Efficiency
0
5
10
15
20
25
0 1 2 3 4
Power (kW) Diesel
Biogas
A B
Figure-1 : comparison of powerV/s efficiency in Diesel modeand 100% Biogas mode.
0
100
200
300
400
500
600
700
0 1 2 3 4 5
Exh
aust
Tem
p (d
eg C
)
Power (kW)
Power v/s Exhaust Temp
Diesel
Biogas
Performance of the Engine
Figure - 2: Power v/s Exhaust Temperature Diesel mode and 100% Biogas mode.
Economics of Conversion Kit
Use of Kit in a 5 hp Diesel EngineConsumption of Diesel =1.0 lts./hr.Use of Diesel Engine =5 hr.Total Diesel consumed =5.0 lts.Cost of Diesel =Rs.35 (approx.) = Expenditure = =Rs.200/= per day Cost of Conversion Kit. Rs.20,000/=Payback period 6 Months. (approx)
Places where Engine has been installed
JEON Tech. Company KOREA
Sulabh International, Palam Gaon New Delhi.
Rajasthan Gosewa sangh Jaipur
CIAE BhopalG.B. Pant. Agriculture University PantnagarPunjab Agricultural Univ. LudhianaMERADO LudhianaTNAU CoimbtoreIIT New DelhiMGIRI WardhaMPUAT Udaipur
Biogas Generator at IDEAL Institute of Technology Ghaziabad
Biogas Engine at Sulabh International
( 7.5kW Air cooled, Double Cylinder, 3 Phase)
Biogas Engine at CIAE Bhopal(4.4 kW, water cooled)
Biogas Engine Exported To Jeon Tech. Co. Ltd Korea
Biogas Generator at MERADO Ludhiana
Other Products…
Biogas Analyzer
Flow Meter
Biogas Balloon
Biogas Purification
Conclusions
100% Biogas engine can be supplied from 1.25 kVA to 10 kVAAn engine can be converted from3 kW to 20 kW on site. There is no need to take it to workshop. Diesel engine whether Single or Double
cylinder, Air cooled or Water cooled can be converted on site.
THANK YOU