Investigation of the effects of biogas composition on the performance of a biogas–diesel dual fuel CI engine

Feroskhan, M.; Ismail, Saleel

doi:10.1080/17597269.2016.1168025

Cited by 44 publications

(14 citation statements)

References 22 publications

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“…The results of this study are in agreement with the finding of Feroskhan and Ismail [26]. They found that at higher loads, the amount of excess air is smaller and therefore the BTE enhances due to the creation of more combustible methane-air mixtures.…”

Section: Btesupporting

confidence: 92%

“…The BSFC for BG45, BG50, BG60, BG75, and BG85 was found to be higher by about 59.9%, 48.2%, 29.8%, 19.7%, and 20.7%, respectively, than that of D100. The increase in the BSFC for the biogas-diesel fuel operation is credited to the low calorific value of biogas which causes higher The results of this study are in agreement with the finding of Feroskhan and Ismail [26]. They found that at higher loads, the amount of excess air is smaller and therefore the BTE enhances due to the creation of more combustible methane-air mixtures.…”

Section: Btesupporting

confidence: 90%

“…This may clarify the higher BTE for BG45 compared with the other biogas-diesel fuels. The CO2 content of biogas does not impact BTE significantly [26]. The BTE increased for all fuels due to increased cylinder temperatures at relatively higher loads.…”

Section: Btementioning

confidence: 87%

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Effects of Pig Manure and Corn Straw Generated Biogas and Methane Enriched Biogas on Performance and Emission Characteristics of Dual Fuel Diesel Engines

et al. 2020

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In recent years, due to stringent emission regulations vehicle manufacturers have been compelled to cut down noxious pollutants released from diesel engines. Different alternative solutions have been recommended to achieve this challenging task. One of these alternative solutions is the utilization of biogas in addition to the use of liquid diesel. In this regard, the current study investigates the combustion characteristics and exhaust emissions of a turbocharged, direct injection, diesel engine operating at constant speed (1800 rpm) and under dual fuel mode with diesel as the pilot fuel and biogas (generated from pig manure and corn straw) and methane enriched biogas. Simulations were carried out at four various engine loads corresponding to brake mean effective pressure (BMEP) of 0.425, 0.85, 1.275, and 1.7 MPa using GT-Power package. The BTE values of biogas-diesel were higher as compared to diesel fuel. The CO2 ratio of biogas did not impact BTE considerably. The highest BTE value of 38.22% was recorded for BG45. However, the Brake specific fuel consumption (BSFC) values for the biogas-diesel fuels were higher than that of diesel fuel operations. With respect to emissions, compared to diesel fuel operation, the hydrocarbon (HC) and CO2 of the biogas-diesel were higher, but NOx and CO pollutants were much lower. The utilization of biogas with diesel by all accounts is attractive to cut down discharges and improve performance of the engine. The engine performance did not deteriorate with up to 45% CO2 proportion in biogas.

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Section: Btesupporting

confidence: 92%

Section: Btesupporting

confidence: 90%

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Effects of Pig Manure and Corn Straw Generated Biogas and Methane Enriched Biogas on Performance and Emission Characteristics of Dual Fuel Diesel Engines

et al. 2020

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“…Simulated biogas is used by various researchers in dual fuel mode [56,[74][75][76]. Feroskhan and Ismail [77] used simulated biogas and reported that methane enrichment will enhance the brake thermal efficiency at low biogas flow rates. Mustafi et al [64] also observed that the brake specific energy consumption of the biogas-diesel dual fuel and diesel-only modes was nearly the same.…”

Section: Performance Indicesmentioning

confidence: 99%

A review on the purification and use of biogas in compression ignition engines

Feroskhan¹,

Ismail²

2017

Int. J. Automot. Mech. Eng.

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Biogas is commonly produced during the decay of organic matter. It is a mixture of methane and some non-combustible gases such as CO2 and H2S. Its viability as a renewable alternative fuel for internal combustion engines can be enhanced by methane enrichment, i.e. removal of the non-combustible constituents. One of the common techniques for using biogas in a compression ignition (CI) engine is to mix it with air in the intake manifold, induct, and compress this mixture and ignite it by injecting a small quantity of diesel or bio-diesel, which is termed as the pilot fuel. This is known as the dual fuel mode. The pilot fuel is injected close to the end of the compression stroke as in a conventional CI engine and the injected fuel quantity depends on the operating condition. An alternative approach is the Homogeneous Charged Compression Ignition (HCCI) mode. Here, a homogeneous mixture of biogas and air is inducted and compressed by the piston until it auto-ignites. While this concept combines the benefits of spark ignition (SI) and CI engines, the onset of combustion cannot be controlled directly. A detailed review of recent research pertaining to biogas purification techniques and operation of CI engines with biogas in dual fuel and HCCI modes is presented in this paper. The effects of various operating parameters on engine performance and emissions, and comparison with conventional diesel fuelled CI engines are discussed. Biogas improves combustion efficiency, NOx, and smoke emissions. However, it reduces brake thermal efficiency, volumetric efficiency, and increases HC and CO emissions. Biogas fuelling of CI engines is recommended for achieving high diesel substitution, especially under high torque operation.

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“…Typical properties of biogas are given in Table II. Biogas has a high self-ignition temperature and hence can be used in the dual fuel mode [8]- [10]. Dual fuel engines are modified diesel engines wherein a gaseous fuel like biogas, natural gas, producer gas or hydrogen is inducted along with air and compressed in the normal way.…”

Section: Introductionmentioning

confidence: 99%

Biogas-Straight Vegetable Oil Dual Fuel Engine for Power Generation in Remote Rural Locations

Reddy¹,

Ramesh²

2017

JOCET

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Abstract-Decentralised power generation in remote rural locations can be done using locally available biomass based renewable energy sources. A single cylinder stationary diesel engine was run in the neat vegetable oil (Jatropha oil) -biogas dual fuel mode to study the potential of this method of operation and also device simple methods to enhance the performance. Increasing the rate of pumping of the injected Jatropha oil and retarding its timing of injection resulted in considerable improvements in thermal efficiency and reduction in emissions. The smoke level at 60% of biogas energy dropped from 2.25 to 0.9 BSU, 2.15 to 0.6 BSU and 1.4 to 0.5 BSU with 7mm, 8mm and 9mm diameter injection pump plungers respectively. Further improvements in the combustion rate of the inducted biogas were possible with enhanced swirl level of the inducted air. At 60% biogas share the thermal efficiency went up by 8%, HC emissions dropped by 26% and smoke level dropped by 17% with enhanced swirl. On the whole, energy shares of biogas as high as 80% could be achieved with good engine performance.Index Terms-Alternative engine fuels, biogas engines, dual fuel engines, vegetable oil as fuel.

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Investigation of the effects of biogas composition on the performance of a biogas–diesel dual fuel CI engine

Cited by 44 publications

References 22 publications

Effects of Pig Manure and Corn Straw Generated Biogas and Methane Enriched Biogas on Performance and Emission Characteristics of Dual Fuel Diesel Engines

Effects of Pig Manure and Corn Straw Generated Biogas and Methane Enriched Biogas on Performance and Emission Characteristics of Dual Fuel Diesel Engines

A review on the purification and use of biogas in compression ignition engines

Biogas-Straight Vegetable Oil Dual Fuel Engine for Power Generation in Remote Rural Locations

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