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Department of Mechanical Engineering
Pimpri Chinchwad College of Engineering
Performance and Emission Analysis
of DTS-I Engine
Presented By :
SAGAR DHUMAL
(TEME B)
Guided By :
Mr. S. S. MORE
WHAT IS DTS-I TECHNOLOGY ?
Combustion with and without using DTS-I
Technology
Advancement in DTSI Technology
• Digital Twin Spark – Swirl Induction (DTS - SI)
• Digital Twin Spark – Fuel Injection (DTS - FI)
• Digital Triple Spark Ignition (DTSI)
• Intelligent CDI
• TRICS III (3RD GENERATION)
• Advancement in Bike Cooling System
• ExhausTEC
Digital Twin Spark – Swirl Induction (DTS - SI)
• The Swirl Induction concept,
which is meant for producing
higher turbulence in the
combustion chamber.
• This can be done by making
slight modifications in the
ports positioning of engine.
DTS-I Triple Spark Engine
• Engine has 3 spark plugs in the
combustion chamber. the primary
plug is at centre at an angle and other
two secondary plugs are mounted
below, each opposite to each other.
• The secondary plugs fires a bit after
the primary one has fired and the
timings are controlled by the ECU
depending on throttle position,
engine rev, load on engine.
Digital Twin Spark-Fuel Injection (DTS-FI)
• In fuel injection the conventional carburettor
has been replaced by injector which injects
fuel in to the engine in a spray form based on
the instructions of the Engine Control Unit
(ECU) .
• ECU processes information sent by various
sensors and instantly determines optimum
fuelling and spark timing for various engine
operating conditions.
Intelligent CDI (Capacitor Discharge Ignition)
• It contains a microprocessor, which
continuously senses different
speeds and load on engine and
responds by altering ignition
timing.
• Working together with the
TRICSIII system, the
microprocessor’s memory provides
optimum ignition timings for any
given engine rpm.
TRICS III (3RD GENERATION)
• TRICS III stand for Throttle Response Ignition Control System III Generation.
• Depending on the needs of the rider whether it be cruising, acceleration or max speed, the
ignition requirements constantly change.
• Based on a particular amount of throttle opening, the magnetic field generated by the
magnet opens or closes the reed switch. The reed switch is connected to the Digital
C.D.I., which signals the C.D.I. to change / switch, the desired ignition advance timing
maps.
Advancement in Bike Cooling System
• Bajaj Pulsar 200 NS has liquid cooled
engine
• Heart of this system is radiator and
blood of the system is the coolant or
liquid which circulates through the
channels made just outside of the
cylinder wall to absorb the heat and
comes back to radiator to cool down.
• Motul Moto Cool expert or Castrol
Radicool is used is coolant.
ExhausTEC
• ExhausTEC is a device incorporated in the
exhaust system.
• TEC stands for ‘Torque Expansion
Chamber’. It is a tuned box (resonator)
fitted onto the header pipe of the exhaust.
• In the lower rpm zones, the ExhausTEC
helps to build a negative pressure pulse
(vacuum) at the exhaust valve, thereby
sucking in more air-fuel mixture into the
cylinder during intake valve opening
“Performance and emission Analysis of DTS-I
Engine and single Spark engine
1. Brake thermal efficiency v/s load
2. Brake specific fuel consumption v/s load
3. Volumetric Efficiency v/s Load
4. Detonation
5. Unburnt Hydrocarbon emission vs load
6. Co Emission v/s load
7. NOx Emission v/s load
Experimental Setup
Maker’s name Hero MotoCorp Bajaj auto limited Bajaj auto limited
Model type Hunk pulsar 150 DTS-I Pulsar 200 NS
Type of engine Four stroke single
cylinder, air cooled
engine
Four stroke single
cylinder, air cooled
engine
Four stroke single
cylinder, water cooled
engine
Displacement
volume
149.2 cc 149.01 cc 199.5 cc
Compression
ratio
9.1:1 9.5:1 11:01
Maximum
power
13.1 Ps @8500 rpm 13.2 Ps @8500 rpm 23.5 Ps@9500 rpm
Maximum
torque
12.80 Nm@6500 rpm 11.25 Nm@6500 rpm 18.3 Nm@8000 rpm
Ignition system CCVI I-CDI system I-CDI system
Brake Specific Fuel Consumption V/S
Load
• It is maximum for single spark
engine and minimum for the
triple spark engine.
Volumetric Efficiency V/S Load
• Initially volumetric efficiency
is maximum for single spark
engine and minimum for triple
spark engine.
• In all the cases it increases
with the increase in the load.
Unburnt Hydrocarbon Emmision Vs Load
• UBHC emissions are higher in
single spark engine because of
incomplete combustion.
• Triple spark engines have lesser
and better UBHC emission due to
better and faster completion of
combustion.
Co Emission V/S Load
• CO emissions are highest for the
single spark engine due to incomplete
combustion.
• It is least for the triple spark engine.
• CO emissions decrease with load in all
three conditions because at high
temperature CO gets oxidized.
NOx Emission v/s Load
• NOx emissions are higher for twin
and triple Plug engine at initial
conditions.
• Curve of triple plug engine tends
to approach minimum value due to
liquid cooling.
Detonation in DTS-i Engine
• Detonation is the main problem in petrol engine.
• Detonation occurs when the flame travel time from centre to the
side walls increases.
• It happens often in the engines having single spark plug.
• This is overcome by the DTSI by having two spark source on the
opposite sides which reduces the flame travel as stated above.
Hence no detonation……
Other Vehicle Manufacturer's That uses Twin spark Technology
TVS Motors (CC-VTI)
Royal Enfield
Honda (i-DSI)
Alfa Romeo
Advantages and Disadvantages
CONCLUSION….
THANK YOU

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performance and emission analysis of DTSI engine

  • 1. Department of Mechanical Engineering Pimpri Chinchwad College of Engineering Performance and Emission Analysis of DTS-I Engine Presented By : SAGAR DHUMAL (TEME B) Guided By : Mr. S. S. MORE
  • 2. WHAT IS DTS-I TECHNOLOGY ?
  • 3. Combustion with and without using DTS-I Technology
  • 4. Advancement in DTSI Technology • Digital Twin Spark – Swirl Induction (DTS - SI) • Digital Twin Spark – Fuel Injection (DTS - FI) • Digital Triple Spark Ignition (DTSI) • Intelligent CDI • TRICS III (3RD GENERATION) • Advancement in Bike Cooling System • ExhausTEC
  • 5. Digital Twin Spark – Swirl Induction (DTS - SI) • The Swirl Induction concept, which is meant for producing higher turbulence in the combustion chamber. • This can be done by making slight modifications in the ports positioning of engine.
  • 6. DTS-I Triple Spark Engine • Engine has 3 spark plugs in the combustion chamber. the primary plug is at centre at an angle and other two secondary plugs are mounted below, each opposite to each other. • The secondary plugs fires a bit after the primary one has fired and the timings are controlled by the ECU depending on throttle position, engine rev, load on engine.
  • 7. Digital Twin Spark-Fuel Injection (DTS-FI) • In fuel injection the conventional carburettor has been replaced by injector which injects fuel in to the engine in a spray form based on the instructions of the Engine Control Unit (ECU) . • ECU processes information sent by various sensors and instantly determines optimum fuelling and spark timing for various engine operating conditions.
  • 8. Intelligent CDI (Capacitor Discharge Ignition) • It contains a microprocessor, which continuously senses different speeds and load on engine and responds by altering ignition timing. • Working together with the TRICSIII system, the microprocessor’s memory provides optimum ignition timings for any given engine rpm.
  • 9. TRICS III (3RD GENERATION) • TRICS III stand for Throttle Response Ignition Control System III Generation. • Depending on the needs of the rider whether it be cruising, acceleration or max speed, the ignition requirements constantly change. • Based on a particular amount of throttle opening, the magnetic field generated by the magnet opens or closes the reed switch. The reed switch is connected to the Digital C.D.I., which signals the C.D.I. to change / switch, the desired ignition advance timing maps.
  • 10. Advancement in Bike Cooling System • Bajaj Pulsar 200 NS has liquid cooled engine • Heart of this system is radiator and blood of the system is the coolant or liquid which circulates through the channels made just outside of the cylinder wall to absorb the heat and comes back to radiator to cool down. • Motul Moto Cool expert or Castrol Radicool is used is coolant.
  • 11. ExhausTEC • ExhausTEC is a device incorporated in the exhaust system. • TEC stands for ‘Torque Expansion Chamber’. It is a tuned box (resonator) fitted onto the header pipe of the exhaust. • In the lower rpm zones, the ExhausTEC helps to build a negative pressure pulse (vacuum) at the exhaust valve, thereby sucking in more air-fuel mixture into the cylinder during intake valve opening
  • 12. “Performance and emission Analysis of DTS-I Engine and single Spark engine 1. Brake thermal efficiency v/s load 2. Brake specific fuel consumption v/s load 3. Volumetric Efficiency v/s Load 4. Detonation 5. Unburnt Hydrocarbon emission vs load 6. Co Emission v/s load 7. NOx Emission v/s load
  • 13. Experimental Setup Maker’s name Hero MotoCorp Bajaj auto limited Bajaj auto limited Model type Hunk pulsar 150 DTS-I Pulsar 200 NS Type of engine Four stroke single cylinder, air cooled engine Four stroke single cylinder, air cooled engine Four stroke single cylinder, water cooled engine Displacement volume 149.2 cc 149.01 cc 199.5 cc Compression ratio 9.1:1 9.5:1 11:01 Maximum power 13.1 Ps @8500 rpm 13.2 Ps @8500 rpm 23.5 Ps@9500 rpm Maximum torque 12.80 Nm@6500 rpm 11.25 Nm@6500 rpm 18.3 Nm@8000 rpm Ignition system CCVI I-CDI system I-CDI system
  • 14. Brake Specific Fuel Consumption V/S Load • It is maximum for single spark engine and minimum for the triple spark engine.
  • 15. Volumetric Efficiency V/S Load • Initially volumetric efficiency is maximum for single spark engine and minimum for triple spark engine. • In all the cases it increases with the increase in the load.
  • 16. Unburnt Hydrocarbon Emmision Vs Load • UBHC emissions are higher in single spark engine because of incomplete combustion. • Triple spark engines have lesser and better UBHC emission due to better and faster completion of combustion.
  • 17. Co Emission V/S Load • CO emissions are highest for the single spark engine due to incomplete combustion. • It is least for the triple spark engine. • CO emissions decrease with load in all three conditions because at high temperature CO gets oxidized.
  • 18. NOx Emission v/s Load • NOx emissions are higher for twin and triple Plug engine at initial conditions. • Curve of triple plug engine tends to approach minimum value due to liquid cooling.
  • 19. Detonation in DTS-i Engine • Detonation is the main problem in petrol engine. • Detonation occurs when the flame travel time from centre to the side walls increases. • It happens often in the engines having single spark plug. • This is overcome by the DTSI by having two spark source on the opposite sides which reduces the flame travel as stated above. Hence no detonation……
  • 20. Other Vehicle Manufacturer's That uses Twin spark Technology TVS Motors (CC-VTI) Royal Enfield Honda (i-DSI) Alfa Romeo