Combined effect of fuel injecting timing and nozzle opening pressure of a biogas-biodiesel fuelled diesel engine

Khayum, Naseem; Anbarasu, S.; Murugan, S.

doi:10.1016/j.fuel.2019.116505

Cited by 64 publications

(9 citation statements)

References 68 publications

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“…This is due to higher BSEC in dual-fuel mode compared to diesel mode. In addition to this, the other contributions are the lower combustion efficiency due to lower cetane number of gaseous fuels, lesser flame propagation speed and higher compression work compared to diesel mode [15,30]. The BTE of producer gas-diesel and biogas-diesel in dual mode is 2.47% and 1.67% lower than diesel mode at 8 kW load.…”

Section: Brake-specific Energy Consumption (Bsec)mentioning

confidence: 99%

“…The NO emission for producer gas-diesel and biogas-diesel are found to be 69.6% and 77.52%, respectively, lower than diesel mode. The most accepted reason for this behaviour is due to the combined effect of lower peak combustion temperature, smaller oxygen percentage and higher specific heat capacity of gaseous fuels compared to baseline diesel [9,15]. Further, it is found that the NO emission in biogas-diesel operation is lower than producer gas-diesel operation.…”

Section: Carbon Monoxide (Co) Emissionmentioning

confidence: 99%

“…However, comparing the biogas-biodiesel with biogas-diesel dual-fuel mode, the emission parameters like NOx and CO 2 of the biogas-biodiesel dual mode were more than biogas-diesel dual mode compared to CO and HC emissions which were at the lower side [14]. Khayum et al [15] experimented using biogas derived from spent tea waste and biodiesel generated from waste cooking oil in a dual-fuel diesel engine and reported that dual-fuel operation of biogas-biodiesel exhibits lower engine performance at all test conditions compared to diesel mode. However, in comparison with emission parameters, the HC and CO emissions were in the higher side while NO and smoke emissions were at the lower side.…”

Section: Introductionmentioning

confidence: 98%

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Comparative assessment of biogas and producer gas with diesel in a twin cylinder dual-fuel diesel engine

Nayak¹,

Sahoo

2020

J Braz. Soc. Mech. Sci. Eng.

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The present work describes the preparation of producer gas and biogas from waste biomass material and its application in a twin cylinder dual-fuel diesel engine to study their performance and emission characteristics by the fractional replacement of fossil diesel in dual-fuel mode. Experiments are carried out both in diesel mode as well as dual-fuel mode operation under different engine loads. Comparative outcomes of performance and emission parameters for both modes of operations are presented. The study reveals that dual-mode operations show lower performance characteristics but better control of emission parameters like nitric oxide (NO) and smoke opacity compared to diesel mode. The hydrocarbon emission of producer gas-diesel and biogas-diesel was found to be 65.8% and 109.7% respectively, higher than diesel mode at the optimum load of 8 kW. Similarly, brake thermal efficiency of dual-mode operation of producer gas-diesel and biogas-diesel was 2.47% and 1.67%, respectively, lower than diesel mode. The pilot fuel savings percentage achieved was 85.5% in biogas-diesel and 83% in producer gas-diesel operation at the same loading condition. Further, comparing biogas with producer gas, it was observed that some of the emission parameters like carbon monoxide CO and NO were better controlled by biogas than producer gas whereas, HC and smoke emissions were better controlled by producer gas than biogas.

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Section: Brake-specific Energy Consumption (Bsec)mentioning

confidence: 99%

Section: Carbon Monoxide (Co) Emissionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Comparative assessment of biogas and producer gas with diesel in a twin cylinder dual-fuel diesel engine

Nayak¹,

Sahoo

2020

J Braz. Soc. Mech. Sci. Eng.

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“…Another solution would be substituting biofuel and biodiesel for fossil fuels [13][14][15]. Within recent years, the usage of biofuels in transport industry has been heeded based on environmental considerations [16][17][18][19][20][21][22][23]. The amounts of carbon dioxide, sulfur dioxides, and aromatics are lower in the combustion of biodiesel in comparison with petrodiesel.…”

Section: Introductionmentioning

confidence: 99%

Technical and Economic Analysis of Conventional and Supercritical Transesterification for Biofuel Production

et al. 2020

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The transesterification process with potassium hydroxide (KOH) catalyst and the methanol supercritical process were evaluated by Aspen HYSYS software. Castor oil and methanol were used as feed and alcohol. In order to accomplish verification, the simulation results were compared to a laboratory research. For economic analysis, these results were transferred to Aspen Economic Analyzer software. Piping and process equipment cost were calculated for the two processes. Additionally, direct and indirect costs of these processes were estimated.

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“…They found the optimum results with a biogas flow rate of 0.75 kg/h with injection timing of 24.5 TDC at a nozzle opening pressure of 240 bar. 12 Ahmed et al investigated the effect of biogas on combustion and emission characteristics of a turbocharged, DI CI engine operating under dual fuel mode at a constant speed of 1800 rpm and reported higher BTE and BSFC with higher HC and CO 2 emissions and lower NO X and CO emission under dual fuel mode when compared to diesel-only mode. 13 Jagadish and Gumtapure studied the cyclic variations of a CI engine operating with raw biogas under dual-fuel mode.…”

mentioning

confidence: 99%

Optimization of engine operating variables on performance and emissions characteristics of biogas fuelled CI engine by the design of experiments: Taguchi approach

Mahla

Goyal

et al. 2021

Env Prog and Sustain Energy

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Biogas obtained from renewable resources is a viable solution for solving energy scarcity and environmental degradation. A single-cylinder 4-stroke natural aspirated variable compression ratio research engine was fuelled with biogas as primary and diesel as a pilot injection in this work. Experiments were designed based on Taguchi L 9 OA (orthogonal array) choosing biogas flow rate, compression ratio, and engine load as input factors, while brake thermal efficiency (BTE), BSEC, CO, HC, NOx, and smoke were targeted responses. The effects level of factors on responses was analysed by using MINITAB software. The higher value of raw data and S/N ratios for BTE was observed with low biogas flow rate, higher compression ratio, and full engine load. On the other hand, lower raw data and high S/N ratio analysis for emissions characteristics (CO, HC, NOx, and smoke) were achieved in the order of rank, that is, engine load > biogas flow rate > compression ratio. With the analysis of results, optimum levels of various factors were evaluated. These results showed that the Taguchi method design was an effective tool for optimizing the elements in terms of combustion performance and emissions characteristics.

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Combined effect of fuel injecting timing and nozzle opening pressure of a biogas-biodiesel fuelled diesel engine

Cited by 64 publications

References 68 publications

Comparative assessment of biogas and producer gas with diesel in a twin cylinder dual-fuel diesel engine

Comparative assessment of biogas and producer gas with diesel in a twin cylinder dual-fuel diesel engine

Technical and Economic Analysis of Conventional and Supercritical Transesterification for Biofuel Production

Optimization of engine operating variables on performance and emissions characteristics of biogas fuelled CI engine by the design of experiments: Taguchi approach

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