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BET`SBASAVAKALYAN ENGINEERING COLLEGE
BASAVAKALYAN
ASeminar
On“HOMOGENEOUS CHARGE COMPRESSION
IGNITION ENGINE”
DEPARTMENT OF MECHANICAL ENGINEERING
Under the Guidance: Submitted By:
Prof. SHIVARAJ BHALEKAR KHADEER
(3BK13ME035)
INTRODUCTIONSHISTORYPRINCIPLE AND WORKINGCOMPARISONWHY HCCI??METHODSEMISSION BEHAVIOURCHALLENGESCONTROLRECENT DEVELOPMENTSADVANTAGESDISADVANTAGESCONCLUSIONREFERENCES
CONTENTS
INTRODUCTION
NOxPM
Green Housegases
Figure . Simulated surface air temperature increase by the year 2060
STANDARDS
REFERENCES
DATE REGIONS Nox (gm/km)
PM…..(gm/km)
INDIA2000
EURO I
2000 NATION WIDE
0.97 0.14
B S II EURO II
20012004
METRO CITIESNATION WIDE
0.90 0.1
B S III EURO III
20052010
METRO CITIESNATION WIDE
0.50 0.05
B S IV EURO IV
20112017
METRO CITIESNATION WIDE
0.25 0.025
EMISSION NORMSCO(gm/km)
HC(gm/km)
2.72 -
1 0.15
0.64 0.06
0.5 0.05
B S V EUROV
To be skipped
- 0.18 0.0045
0.5 0.05
B S VI EURO VI
2020proposed
- 0.08 0.0045
0.5 0.09
HISTORYHCCI combustion was discovered as an alternative way
For two stroke engineFirst study on such type of combustion process was
Made by ONISHI in 1979
PRINCIPLE AND WORKING
COMPARISON
Basis of comparison S I ENGINE HCCI ENGINE
EFFICIENCY LESS MORE
THROTTLING LOSSES MORE NO
NOx and PM … EMISSIONS MEDIUM LESS
Basis of comparison C I ENGINE HCCI ENGINE
NOx , PM…. EMISSIONS
VERY HIGH VERY LESS
EFFICIENCY MEDIUM HIGH
WHY HCCI ??
SI flame propagation in 2-Strokeengine at 9000 rpm
HCCI combustion in 2-Stroke engineat 17000 rpm.
METHODSTHE CONCENTRATION AND TEMPERATURE CAN BE
INCREASED BY:
PRE-HEATING OF INDUCTION GASES
FORCED INDUCTION
RE-INDUCTED EXHAUST GASES
INCREASING CR
EMISSION BEHAVIOUROXIDES OF NITROGEN (Nox)
PARTICULATE MATTER (PM)
HYDROCARBON (HC) AND CARBON MONO OXIDE(CO)
Figure : Predicted NOx Emissions vs.Engine Load for Typical HCCIand DI Diesel Combustion
CHALLENGESDifficulty in combustion control
Ignition timing control
Homogeneous mixture preparations
CONTROL STRATEGIESVarying compression ratio (VCR)
Varying valve timing (VVT)
Exhaust gas recirculation (EGR)
RECENT DEVELOPMENTS
Major companies such as GM, Mercedes-Benz, Honda, and Volkswagen have invested in HCCI research.
ADVANTAGESLean operation leads to higher efficiency
Homogeneous mixing of fuel and air leads to cleaner combustion and low emission
Since HCCI runs throttle less it eliminates throttling losses
Low grade fuel can be use
DISADVANTAGESDifficulty in combustion control
Limited power range
Abnormal pressure rise with noise
CONCLUSIONHCCI combustion process is an interesting alternative To the conventional SI and CI process.
The potential benefit of HCCI is high , with simultaneousUltra low emission of NOx and PMAnd low consumption of fuel
Thus it can combine the best features of SI and CI engine
REFERENCESP.Venkatrama (2013), Homogeneous Charge Compression Ignition (HCCI) Engine, International Journal of Engineering Research And Technology (IJERT) ISSN:2278-0181 Vol.2 Issue 2, February-2013
P.V.Ramana, D Maheshwar, B. Unmeneshwar Gowd (2015), Review on Research and development of HCCI technology, International Journal of IT, Engineering And Applied Sciences Research (IJIEASR) Volume 4, No.5, May 2015
Jack Hunicz, Pawel Krzaczek (2016), Detailed Speciation of Emissions from Low-Temperature Combustion in a Gasoline HCCI Engine, Poland Journal Environmental Studies Volume 25 No.1 (2016), 137-145
Anku kumar singh, M.K. Paswan (2014), Homogeneous Charge Compression Ignition Engine, International Journal Of Mechanical Engineering And Robotics Research (IJMERR) ISSN 2278-0149 Vol.3, No.1, January 2014
Krzysztof Motyl, Tadeusz J. Rychter (2003), HCCI Engine – A Preliminary Analysis Journal of KONES Internal Combustion Engines 2003, Vol. 10, 3-4
Pravin Kumar, A.Rehman Homogeneous Charge Compression Ignition (HCCI) Combustion Engine- A Review IOSR Journal of Mechanical And Civil Engineering e-ISSN:2278-1648, p-ISSN: 2320-334X, Volume 11, Issue 6, Ver.II (Nov.- Dec. 2014), PP 47-67
Thank
You
ANY
QUERIES
