Environmental Science and Pollution Research

, Volume 25, Issue 10, pp 9722–9729 | Cite as

Studies on biogas-fuelled compression ignition engine under dual fuel mode

  • Sunil Kumar Mahla
  • Varun Singla
  • Sarbjot Singh Sandhu
  • Amit Dhir
Research Article

Abstract

Experimental investigation has been carried out to utilize biogas as an alternative source of energy in compression ignition (CI) engine under dual fuel operational mode. Biogas was inducted into the inlet manifold at different flow rates along with fresh air through inlet manifold and diesel was injected as a pilot fuel to initiate combustion under dual fuel mode. The engine performance and emission characteristics of dual fuel operational mode were analyzed at different biogas flow rates and compared with baseline conventional diesel fuel. Based upon the improved performance and lower emission characteristics under the dual fuel operation, the optimum flow rate of biogas was observed to be 2.2 kg/h. The lower brake thermal efficiency (BTE) and higher brake-specific energy consumption (BSEC) were noticed with biogas-diesel fuel under dual fuel mode when compared with neat diesel operation. Test results showed reduced NO x emissions and smoke opacity level in the exhaust tailpipe emissions. However, higher hydrocarbon (HC) and carbon monoxide (CO) emissions were noticed under dual fuel mode at entire engine loads when compared with baseline fossil petro-diesel. Hence, the use of low-cost gaseous fuel such as biogas would be an economically viable proposition to address the current and future problems of energy scarcity and associated environmental concerns.

Keywords

Biogas Dual fuel NOx CI engine Emission 

Nomenclature

NOx

Oxides of nitrogen

PM

Particulate matter

rpm

Revolutions per minute

CO2

Carbon dioxide

CO

Carbon monoxide

O2

Oxygen

HC

Hydrocarbon

BTDC

Before top dead center

CI

Compression ignition

BTE

Brake thermal efficiency

BSEC

Brake-specific energy consumption

HRT

Hydraulic retention time

Notes

Funding information

The research work reported here is the part of DST-SERB sponsored fast track project entitled “Studies on combustion, performance and emission characteristics of diesel engine fuelled with Biodiesel and Biogas” (SB/FTP/ETA-306/2013). The financial support extended in the project is gratefully acknowledged.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringI.K. Gujral Punjab Technical University CampusHoshiarpurIndia
  2. 2.Adesh Institute of Engineering and TechnologyFaridkotIndia
  3. 3.Department of Mechanical EngineeringNational Institute of TechnologyJalandharIndia
  4. 4.School of Energy and EnvironmentThapar Institute of Engineering and TechnologyPatialaIndia

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