small biogas engine conversion kit rural application_dr. g.p. govil, ideal institute

Small Biogas Engine conversion kit Rural Application

(No Petrol, No Diesel )

ByDr.G.P.Govil

DirectorSIYA INSTRUMENTS

gpgovil@gmail.com siya1234@gmail.com, Mobile: 9811345179

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

Contact Person

Dr. G.P.Govil 09811345179Mr. Vimal Jagatiya 09414156154

SIYA INSTRUMENT S-17 Road No.2, Mewar Industrial Area

Udaipur, Rajasthan- 313002Email-Id : siya1234@gmail.com

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