Experimental Explorations of Dual Fuel CI Engine Operating with Guizotia abyssinica Methyl Ester–Diesel Blend (B20) and Hydrogen at Different Compression Ratios

Sagari, Jaikumar; Bhatti, S. K.; Srinivas, V.

doi:10.1007/s13369-019-04033-z

Cited by 16 publications

(28 citation statements)

References 24 publications

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“…4a, b was that the peak CP was improved at a higher compression ratio and higher load. The reason was due to rapid flame propagation which was on account of higher in-cylinder pressure and temperature at higher compression ratios [12,21]. Further, an increase in the hydrogen flow rate was noticed superior CP irrespective of loads and compression ratios.…”

Section: Cylinder Pressure (Cp)mentioning

confidence: 96%

“…As observed, the NHRR was increased with an increase in the compression ratio. This was mainly on account of enhanced in-cylinder pressure and temperature which lead to the combustion dominance [12]. Also, the NHRR was observed superior with hydrogen enrichment.…”

Section: Cylinder Pressure (Cp)mentioning

confidence: 96%

“…Further, UHC and smoke opacity emissions reduced by 63.3% and 22% individually. Jaikumar et al [12] conducted an experiment to assess diesel engine operating parameters namely performance, combustion, and emission characteristics using Niger seed oil biodiesel and hydrogen in dual fuel mode by altering compression ratios. They concluded that the BTE, CP, NHRR, RoPR, and NO x were improved while the BSFC, CO, UHC, and smoke opacity were reduced with hydrogen enrichment.…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive performance, combustion, emission, and vibration parameters assessment of diesel engine fuelled with a hybrid of niger seed oil biodiesel and hydrogen: response surface methodology approach

et al. 2020

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The present investigation centered on the application of response surface methodology to assess the engine operating parameters namely performance, combustion, emission, and vibration characteristics of variable compression ratio direct injection single-cylinder diesel engine operating with Niger seed oil methyl ester blend and hydrogen in dual fuel mode. Response surface models were developed using the experimental data of input and output variables. The fuel blend, load, compression ratio, and hydrogen flow rate were considered as input responses while the brake thermal efficiency, brake specific fuel consumption, cylinder pressure and net heat release rate, carbon monoxide (CO), unburnt hydrocarbon, Nitrogen oxides (NO x), smoke opacity, and RMS velocity respectively were considered as the output responses. The input conditions altered were: loads of 29.43 N (3 kgf), 58.86 N (6 kgf), 88.29 N (9 kgf), and 117.72 N (12 kgf), compression ratios of 16, 17.5, and 18.5, and the hydrogen flow rates of 5 lpm, 10 lpm, and 15 lpm. The output information of the test was assessed using response surface methodology (RSM) and the polynomial model (second-request) was created. The experimental values were in good match with RSM predicted values and maintained an R 2 value of more than 0.95 for all the test run combinations. Further, all the test points sustained comparatively within the 10% maximum deviation. Keywords Brake thermal efficiency • Compression ratio • Smoke opacity • Hydrogen • Cylinder pressure Abbreviations CR Compression ratio FB Fuel blend HFR Hydrogen flow rate (lpm) BTE Brake thermal efficiency (%) BSFC Brake specific fuel consumption (kg/kWhr) NSOME Niger seed oil methyl ester B20 20% NSOME in diesel CO Carbon monoxide (%) UHC Unburnt hydrocarbon (ppm) NOx Nitrogen oxides (ppm) CI Compression ignition ASTM American standards for testing materials ADC Analog to digital converter lpm Liter per minute CP Cylinder pressure (bar) NHRR Net heat release rate (J/deg.) q Net heat release rate (J/deg.) q Heat Heat transfer rate combustion chamber wall (J/deg.) V Volume change with crank angle (m 3 /deg.) p Pressure change with crank angle (bar/deg.)

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Section: Cylinder Pressure (Cp)mentioning

confidence: 96%

Section: Cylinder Pressure (Cp)mentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Comprehensive performance, combustion, emission, and vibration parameters assessment of diesel engine fuelled with a hybrid of niger seed oil biodiesel and hydrogen: response surface methodology approach

et al. 2020

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“…Natural gas, liquefied petrol gas (LPG), hydrogen, acetylene, alcohols and vegetable oils can be used as an alternative fuel in internal combustion engines directly or as additions of certain ratios to the main fuel [7,8]. In studies on gas fuel applications in compression-ignition (CI) and sparkignition (SI) engines, the gas fuel is taken into the cylinder by adding it to the intake air, and then the ignition is triggered by either pilot fuel or ignition spark [7][8][9].…”

Section: Acetylene Gas and Its Propertiesmentioning

confidence: 99%

“…air population caused by motor vehicles in the whole air kg/m³ and it is approximately 10% lighter than air [8,9]. It is used in the synthesis process of various organic compounds as well as in the cutting and welding of metals.…”

Section: Salih öZer a Mehmet Akçay A * Erdinç Vural B And İlker mentioning

confidence: 99%

The effects of the use of acetylene gas as an alternative fuel in a gasoline engine

Özer

Akçay

Vural

et al. 2020

International Advanced Researches and Engineering Journal

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In internal combustion engines, the use of gas fuels is becoming widespread due to its advantages such as low cost and being more environmentally friendly. Acetylene is one of the gas fuels seen as an alternative to petroleum-based fuels in internal combustion engines. In this experimental study, the availability of acetylene gas, a gas fuel, at 1600 rpm, 2400 rpm and 3200 rpm engine speeds in a spark plug-fired engine was investigated. Acetylene gas was added to gasoline by 5% and 10% of the mass and its effect on exhaust emissions was studied. The results showed that adding acetylene gas to gasoline by mass increased CO, CO2 and NOx emissions and exhaust gas temperature. HC, oxygen emissions and air supply coefficient decreased.

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Investigation on a diesel engine fueled with hydrogen‐compressed natural gas and Kusum seed biodiesel: Performance, combustion, and emission approach

2022

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The objective of the present study is to evaluate the performance, combustion, and emission characteristics of a compression-ignition engine using hydrogen-compressed natural gas (HCNG)-enriched Kusum seed biodiesel blend (KSOBD20). The flow rate of HCNG was set at 5, 10, and 15 liters per minute (lpm), and the injection pressure was varied in the range of 180-240 bar. Brake thermal efficiency (BTE) and brake-specific fuel consumption (BSFC) were improved when HCNG was added to the KSOBD20. Combustion characteristics, namely, cylinder pressure (CP) and net heat release rate (NHRR), were also improved. Emissions of carbon monoxide (CO), hydrocarbons (HC), and smoke were also reduced, with the exception of nitrogen oxides (NO x ). The higher injection pressure (240 bar) had a positive effect on operating characteristics. At an injection pressure of 240 bar, for KSOB20 + 15 lpm HCNG, the highest BTE and the lowest BSFC were found to be 32.09% and 0.227 kg/kWh, respectively. Also, the CP and NHRR were 69.34 bar and 66.04 J/deg. CO, HC, and smoke levels were finally reduced to 0.013%, 47 ppm, and 9%, respectively, with increased NO x levels of 1623 ppm. For optimum results in terms of engine characteristics, the fuel combination

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Experimental Explorations of Dual Fuel CI Engine Operating with Guizotia abyssinica Methyl Ester–Diesel Blend (B20) and Hydrogen at Different Compression Ratios

Cited by 16 publications

References 24 publications

Comprehensive performance, combustion, emission, and vibration parameters assessment of diesel engine fuelled with a hybrid of niger seed oil biodiesel and hydrogen: response surface methodology approach

Comprehensive performance, combustion, emission, and vibration parameters assessment of diesel engine fuelled with a hybrid of niger seed oil biodiesel and hydrogen: response surface methodology approach

The effects of the use of acetylene gas as an alternative fuel in a gasoline engine

Investigation on a diesel engine fueled with hydrogen‐compressed natural gas and Kusum seed biodiesel: Performance, combustion, and emission approach

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