ja501 alternative fuel (presentation 2)

7/23/2019 Ja501 Alternative Fuel (Presentation 2)

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JA501 AUTOMOTIVE TECHNOLOG

ALTERNATIVE FUELS

AND

DIESEL COMMON RAIL

DAD 5B

PRESENTATION 1


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MOHD SYAZWAN BIN JAAFAR04DAD12F2002

SHAMIL AHMAD BIN KAMIL AHMAD04DAD12F2030

MUHAMMAD AMIRUL BIN SHAMSUD

04DAD12F2010MOHD ZULHELMI BIN ABD GHAN

04DAD12F2014


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WHAT IS ALTERNATIVE FUEL ARE DEFINED AS THOSE VEHICLES THAT RUN ON FUEL OTHER THA

TRADITIONAL! PETROLEUM FUELS " PETROL AND DIESEL # VEHICLE THAT SUPPLEMENT TRADITIONAL FUELS WITH OTHER SOU

POWER$

DURING WORLD WAR 2 WHEN PETROLEUM WAS SCARCE% NEW INNLED TO THE USE OF WOOD GAS TO POWER CARS WITH ORNINARY COMBUSTION ENGINES$

CHARCOAL ALSO WAS USED TO POWER CARS IN CHINA AROUND 11&50$

IN 1''0% HENRY FORD BUILT ONE OF HIS AUTOMOBILES TO RUN OETHANOL$


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TYPES OF ALTERNATIVE FUELS

METHANOL

PROPANE

ETHANOL

METHANE

METHANOL

FUEL CELL " ELECTRICITY # HYBRID ELECTRIC VEHICLE

NATURAL GAS " NGV #


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NATURAL VEHICLE GAS " NGV #

NATURAL(GAS VEHICLES USE THE SAME BASIC PRINCIPLES AS GASPOWERED VEHICLES

BI(FUEL VEHICLE WITH MULTI(FUEL ENGINES CAPABLE OF RUNNINGFUELS$

INTERNAL COMBUSTIONCHAMBER

GASOLINEDIESEL

COMPRESSED NATURAL GA" CNG #

LI)UEFIED PROPANE GASOL" LPG #

HYDROGEN


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NATURAL GAS VEHICLE " NGV # DIAG


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MAIN COMPONENT OF NGV

CNG CYLINDER

CYLINDER*S VALVE

VENTING SYSTEM

HIGH PRESSURE PIPE

SELECTOR SWITCH

FILLING VALVE REGULATOR

MI+ER


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CNG CYLINDER

NATURAL GAS IS STORED AT A MA+IMUM PRESSURE OPSI


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CYLINDER VALVE

SAFETY AND SECURITY PURPOSES


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VENTING SYSTEM

DIRECT POSSIBLE LEAKS AT THE CYLINDER VALVE TO THE ATMOS


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HIGH PRESSURE PIPE

CONNECTION BETWEEN CNG CYLINDER AND THE REGULATO


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SELECTOR SWITCH

TO SWITCH FROM GAS TO PETROL OR VICE , VERSA


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FILLING VALVE

FILLING OF GAS FROM REFUELLING STATION AND CUT OFF GAS SUREGULATOR IF NECESSARY


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REGULATOR

REGULATES THE PRESSURE FROM CYLINDER IN 3 STAGES% FROM HIGPRESSURE TO ATMOSPHERE PRESSURE$

REDUCES FROM 200 BAR TO 4 BAR

FOLLOW BY 4 BAR TO 1$5 BAR

DELIVERING GAS AS NEEDED BY THE ENGINE


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MI+ER

TO ALLOW A PROPER AIR- FUEL RATIO TO BE DISTRIBUTED INTO COCHAMBER

OPERATION OF NATURAL GAS VEHIC


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OPERATION OF NATURAL GAS VEHIC" NGV #

NATURAL GASFILLINGVALVE

CNGCYLINDER

SELECTORSWITCH

NATURAL GASSELENOID VALVE

MI+ERCOMBUSTION

CHAMBER


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ADVANTAGES OF NATURAL VEHICLE

APPRO+IMATELY './ OF NATURAL GAS USED IN AMERICA IS PRODDOMESTICALLY

LESS SMOG(PRODUCING POLLUTANTS

LESS GREENHOUSE GAS EMISSIONS

LESS E+PENSIVE THAN GASOLINE


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DISADVANTAGES OF NATURAL GAS VE

LIMITED AVAILABILITY

NATURAL GAS IS LESS READILY AVAILABLE THAN GASOLINE AND D

LIMITED DRIVING RANGE AS COMPARED TO GASOLINE VEHICLE


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DIESEL COMMON RAIL SYSTEM (DC

THE COMMON RAIL SYSTEM ACCUMULATES HIGH(PRESSURE FUEL IN THE

RAIL AND INJECTS THE FUEL INTO THE ENGINE CYLINDER AT TIMING CONT

THE ENGINE ECU% ALLOWING HIGH(PRESSURE INJECTION INDEPENDENT F

ENGINE SPEED$ AS A RESULT% THE COMMON RAIL SYSTEM CAN REDUCE H

MATERIALS SUCH AS NITROGEN O+IDES "NO+# AND PARTICULATE MATTER

EMISSIONS AND GENERATES MORE ENGINE POWER$


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DCR SENSOR

FUEL RAIL PRESSURE SENSOR

FUNCTION

A FUEL PRESSURE SENSOR IS LOCATED ON THE FUEL RAIL.

MONITORS THE FUEL PRESSURE IN THE COMMON RAIL.

TYPICALLY A PIEZO RESISTIVE TYPE SENSOR.

THREE WIRES : . 5 VOLT SUPPLY FROM ENGINE ECM

. SENSOR GROUND VIA ENGINE ECM

. LINEAR SIGNAL VOLTAGE OUTPUT TO ECM


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TEMPERATURE SENSOR

THE FUEL TEMPERATURE SENSOR IS MOUNTED TO THE PUMP$

ITS ROLE IS TO MONITOR THE FUEL TEMPERATURE INSIDE THE PUM

MAKE THE DATA AVAILABLE TO THE DCU% THEREBY PREVENTING E+

FUEL TEMPERATURES$


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ADVANTAGES AND DISADVANTAGESUSING DCR SYSTEM

ADVANTAGES

FUEL PRESSURE AVAILABLE ON DEMAND.

HIGHER INJECTION PRESSURES AND FINER ATOMIZATION OF FUEL.

INJECTION PRESSURE CREATED INDEPENDENT OF

ENGINE SPEED.

MULTIPLE INJECTIONS PER CYLINDER COMBUSTION ARE

POSSIBLE.


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DISADVANTAGES OF USING DCR SYST

DCR WERE CAM-DRIVEN AND AS A RESULT THE MAXIMUM PRESSURE

INJECTION WAS ONLY ACHIEVED AT HIGH ENGINE SPEEDS.

DCR WERE LIMITED IN THE NUMBER OG INJECTION THAT THEY COULD

PER COMBUSTION CYCLE.


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THANK YOU

ja501 alternative fuel (presentation 2)

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