Transcript
CONTENTS
Introduction Conversion of Petrol Engine to gas engine Conversion of Diesel Engine to Dual fuel mode Conversion of Diesel Engine to 100 % Biogas (S.I.Mode) Conclusions
CONTENTS
Introduction Conversion of Petrol Engine to gas engine Conversion 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 villages To provide drinking water in villages To create employment in rural areas To have sustainable growth To provide an affordable conversion kit to convert diesel engine to gaseous engine on site
Concept for Domestic Power Supply in Rural Area
Balloon Biogas Digester Biogas Storage Balloon
INVERTER
Biogas Generator
Power Need Village Household requirements Dairy requirement Village cluster requirements
1-10 KW 20-50 KW >100 KW
CONVERSION OF PETROL ENGINE TO GASEOUS FUEL ENGINE
Conversion of Petrol Engine to Gaseous Engine
Gas –Air Mixing Compression Ratio LPG, Natural Gas, Biogas, Producer gas CR=10-12 Petrol CR=7.7-9.5 More Wear & Tear because of less lubrication Conversion Leads to DERATING of engine
Reasons for Engine Derating
Lower calorific value of Biogas Lower volumetric efficiency Higher 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 Carburettor Arrangements for supply of Diesel
Dual fuel operation (Gas+ Diesel) Ignition by pilot fuel injection (Diesel)
BIO – GAS DIGESTER
DIESEL DIESEL VENTURI INJECTOR
AIR FILTER ENGINE FUEL PUMP GOVERNOR
GAS CONTROL VALVE
FUEL FILTER MANUAL GAS CONTROL VALVE
Schematic Diagram for Conversion to Dual Fuel Mode using Diesel and Biogas
Problems associated with DualFuel 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 Kit The 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 system Installation of Gas carburetor,
BIO – GAS DIGESTER Spark Plug
VENTURI
AIR FILTER
Ignition
ENGINE
Mechanism
(Battery ignition / Magneto ignition)
GOVERNOR
SPEED CONTROLLED BY GOVERNOR IN CASE OF OVERSPEED
MANUAL GAS CONTROL VALVE
Schematic Diagram for Conversion to Biogas Engine
Gas Valve & Air Gas Mixing
Modified Cylinder Head & Spark Plug
Ignition System
Battery Ignition System Magneto Ignition System
Battery Ignition System
Battery Ignition System Contact Point Cam Spark Plug
Conversion Kit for Battery Ignition System
Converted Gaseous Engine with Battery Ignition System
Magneto Ignition System
Magneto Ignition System Spark 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 Consumption 25kg of dung is required to generate 1 m 3 of the gas The consumption of the gas is 0.8 -1.0 m 3 / kWhr .
Power of the Engine Diesel 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
Performance of the Engine Power v/s Efficiency
Power v /s Exhaust Temp
25
700
600
20
) C 500 g e d ( p 400 m e T t s u a h300 x E
A
15
10
B
200
5 100
0 0
1
2 Power (kW)
3
4 Diesel Biogas
Figure-1 : comparison of power V/s efficiency in Diesel mode and 100% Biogas mode.
0 0
1
2 Power (kW)
3
4
5 Diesel Biogas
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 Engine Consumption 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 G.B. Pant. Agriculture University Punjab Agricultural Univ. MERADO TNAU IIT MGIRI MPUAT
Bhopal Pantnagar Ludhiana Ludhiana Coimbtore New Delhi Wardha 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 Purification
Biogas Analyzer Flow Meter Biogas Balloon
Conclusions
100% Biogas engine can be supplied from 1.25 kVA to 10 kVA An 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.
