Ignition timing and compression ratio as effective means for the improvement in the operating characteristics of a biogas fueled spark ignition engine

Hotta, Santosh Kumar; Sahoo, Niranjan; Mohanty, Kaustubha; Kulkarni, Vinayak

doi:10.1016/j.renene.2019.12.145

Cited by 36 publications

(18 citation statements)

References 31 publications

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“…The subject of testing CR in IC engines has been dealt with in a number of scientific-research publications. For example, the issue of CR investigation in terms of assessing various characteristics of spark ignition engines is discussed in [40,41]. Hotta et al (2020) examined ignition timing and CR in terms of improving the operating characteristics of a biogas fueled spark ignition engine, wherein individual findings were obtained through series of experiments while putting an emphasis on effects of the engine performance and combustion characteristics [40].…”

Section: Previous Researchmentioning

confidence: 99%

Correlation between Emission and Combustion Characteristics with the Compression Ratio and Fuel Injection Timing in Tribologically Optimized Diesel Engine

2022

Teh. vjesn.

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Diesel engines are economical thanks to their combustion process characteristics, which is why they have a high noise emission level as well as exhaust emissions of nitrogen oxide and particulate matters. By continuously changing the value of compression ratio, it is possible to control the power and emissions. Implementation of variable compression ratio has many benefits, such as being able to work with different types of fuel. In this way, it is possible to optimize the combustion process for operation with minimum fuel consumption and emission generation, so that diesel engines can be applied to the framework of future hybrid vehicle concepts, and so forth. As far as the crucial objective of the manuscript is concerned, experimental diesel engine investigation was performed on a roller test-bench by using zero-dimensional computer model (specifically AVL IndiCom Indicate Software). Engine indication was executed with the factory compression ratio value and with three lower values. During our examination, the change in the compression ratio value was achieved by changing the volume of a combustion chamber at a piston-bowl. The results of laboratory research on the experimental engine are presented in the paper when discussing a series of specific parameters (characteristics), such as compression ratio, fuel injection timing, engine speed, as well as load influence on combustion process and exhaust emissions.

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Section: Previous Researchmentioning

confidence: 99%

Correlation between Emission and Combustion Characteristics with the Compression Ratio and Fuel Injection Timing in Tribologically Optimized Diesel Engine

2022

Teh. vjesn.

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“…Its high autoignition temperature and resistance to impact allows using biogas in engines with an increased compression ratio (CR), while in some studies biogas was used in spark ignition engines with CR of 14. However, the maximum value of brake thermal efficiency and the lowest brake specific fuel consumption were achieved with a CR of 12 [18]. Although high CR results in an increased in-cylinder pressure, temperature and emission of nitrogen oxides [21], the use of biogas which contains CO 2 lowers these parameters [44].…”

Section: ±001%mentioning

confidence: 99%

“…Replacing gasoline with biogas will result in higher brake specific fuel consumption (BSFC) and lower BTE values [17]. The compression ratio is increased to increase engine efficiency, but then the maximum brake torque values decrease, and HC emissions increase [18]. Propane or hydrogen can be used to increase the LHV of biogas and to improve the combustion process of biogas [19].…”

Section: Introductionmentioning

confidence: 99%

Impact of Simulated Biogas Compositions (CH4 and CO2) on Vibration, Sound Pressure and Performance of a Spark Ignition Engine

et al. 2021

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Biogas has increasingly been used as an alternative to fossil fuels in the world due to a number of factors, including the availability of raw materials, extensive resources, relatively cheap production and sufficient energy efficiency in internal combustion engines. Tightening environmental and renewable energy requirements create excellent prospects for biogas (BG) as a fuel. A study was conducted on a 1.6-L spark ignition (SI) engine (HR16DE), testing simulated biogas with different methane and carbon dioxide contents (100CH4, 80CH4_20CO2, 60CH4_40CO2, and 50CH4_50CO2) as fuel. The rate of heat release (ROHR) was calculated for each fuel. Vibration acceleration time, sound pressure and spectrum characteristics were also analyzed. The results of the study revealed which vibration of the engine correlates with combustion intensity, which is directly related to the main measure of engine energy efficiency—break thermal efficiency (BTE). Increasing vibrations have a negative correlation with carbon monoxide (CO) and hydrocarbon (HC) emissions, but a positive correlation with nitrogen oxide (NOx) emissions. Sound pressure also relates to the combustion process, but, in contrast to vibration, had a negative correlation with BTE and NOx, and a positive correlation with emissions of incomplete combustion products (CO, HC).

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“…For the most suitable combustion conditions to be realized in the cylinder, at least 50% of CH 4 , which is the most basic content of biogas, must be present [24]. Biogas can be used on the internal combustion engine without the need for major structural changes [25,26]. Also, if a structural change is needed, it is much easier to modify a spark-ignition engine to run on biogas than a diesel engine [27,28].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, they stated that optimum spark timing selection increases BTE as well as HC and CO 2 emissions. Hotta et al [25] investigated the effects of using biogas in a single-cylinder, four-stroke SI engine with a compression ratio of 10-14. The authors stated that by increasing the compression ratio from 10 to 12, engine power and efficiency increased by 12.72% and 5.68%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the ability of different biogas level dual fuel spark ignition engine: Emission mitigation, performance, and combustion analysis

Şimşek

Uslu

Şimşek

2021

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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The major aim of the research is to investigate the ability of biogas as an alternative fuel for gasoline-powered Spark Ignition (SI) engine. In this study, biogas/gasoline fuel mixtures containing different ratios of biogas, gasoline, and biogas were tested in an SI engine with an increased compression ratio at different engine loads and constant engine speed. According to the comparison with gasoline, the utilization of biogas generally decreased the Brake Thermal Efficiency (BTE), while the Brake Specific Fuel Consumption (BSFC) rose. The lowest BTE and the highest BSFC were obtained with 100% biogas. Compared to gasoline, a decrease of 16.04% and an increase of 75.52% were observed, respectively. On the other hand, the use of biogas has improved all emissions. The best emission values were obtained with 100% biogas. Compared to gasoline, Carbon monoxide (CO), HydroCarbon (HC), and Nitrogen Oxide (NOx) emissions decreased by 56.42%, 63%, and 48.96%, respectively. Finally, according to the results of the combustion analysis, the peak pressures were reduced with the utilization of biogas, and the position of the peak pressure shifted by 2° to 3° Crank Angle (CA). Compared to gasoline, the lowest pressure was obtained with 100% biogas, resulting in a reduction of approximately 24.69%.

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Ignition timing and compression ratio as effective means for the improvement in the operating characteristics of a biogas fueled spark ignition engine

Cited by 36 publications

References 31 publications

Correlation between Emission and Combustion Characteristics with the Compression Ratio and Fuel Injection Timing in Tribologically Optimized Diesel Engine

Correlation between Emission and Combustion Characteristics with the Compression Ratio and Fuel Injection Timing in Tribologically Optimized Diesel Engine

Impact of Simulated Biogas Compositions (CH4 and CO2) on Vibration, Sound Pressure and Performance of a Spark Ignition Engine

Experimental study on the ability of different biogas level dual fuel spark ignition engine: Emission mitigation, performance, and combustion analysis

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