Experimental evaluation of diesel engine powered with waste mango seed biodiesel at different injection timings and EGR rates

Reddy, S. Rami; Murali, G.; Shaik, Areef Ahamad; Raju, V. Dhana; Reddy, M. B. S. Sreekara

doi:10.1016/j.fuel.2020.119047

Cited by 51 publications

(10 citation statements)

References 36 publications

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“…This is because the extended ignition delay period in advanced IT generated fast combustion, increasing the heat release rate and flame temperature, which was the cause of NOx generation. 64 Increased injection pressure increased NOx emissions, as shown in this figure. The particle diameter reduced when the injection pressure was increased, causing the biodiesel-diesel fuel spray to evaporate faster.…”

Section: Co(%)mentioning

confidence: 71%

Effect of α-aluminium oxide nano additives with Sal biodiesel blend as a potential alternative fuel for existing DI diesel engine

Sharma¹,

Pali

Kumar

et al. 2022

Energy & Environment

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The increasing demand, rapid consumption, price increase, limited reserves, and environmental concern due to pollution produced by conventional fossil fuel (diesel & gasoline) are a few reasons why biofuels need to be explored. The present paper employs a systematic methodology to examine the performance of a 20% volumetric blend of Sal biodiesel (S20) blended with diesel using α-aluminium oxide (α-Al2O3) nanoparticles (NP) as additives and is compared with a diesel under like circumstances. The central composite design, Box-Behnken design (BBD) based response surface methodology, and desirability tests are used in the organized experiments on a diesel engine configuration to facilitate calibration. The created multivariate regression model yields all of the best engine inputs. Interaction effects are used to determine the most influential element by observing the interaction of two distinct input factors on a single response. According to the desirability tests, the highest estimated desirability was 0.579; the optimal input parameters found are 21°bTDC injection timing (IT), 238 bar injection pressure (IOP), 17 compression ratio (CR), and 74 ppm concentration of α-Al2O3NP, estimated the optimized response of brake thermal efficiency (BHTE) 31.18%, brake specific fuel consumption (BSFC) 0.2975 kg/kWh, carbon monoxide (CO) 0.0887%, hydrocarbon (HC) 31 ppm, oxide of nitrogen (NOx) 677 ppm, and smoke level 54.92%. These predicted values were validated with experimental results, and errors were within the range. The nanoparticle combination sample offers improved brake thermal efficiency (BTHE) and lower BSFC rate than the S20 while testing for the optimal parametric condition. Graphical abstract [Formula: see text]

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Section: Co(%)mentioning

confidence: 71%

Effect of α-aluminium oxide nano additives with Sal biodiesel blend as a potential alternative fuel for existing DI diesel engine

Sharma¹,

Pali

Kumar

et al. 2022

Energy & Environment

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“…On delaying the injection timing from the rated value, ignition delay will be too shortened such that little burning will even continue in the power stroke also reducing the engine power or increasing the BSFC. (Channappagoudra et al, 2020;Rami Reddy et al, 2021) Lowest BSFC is observed for 30 °bTDC+B20 + 80 ppm CeO 2 , and is 11.1% lower than 30 °bTDC+B20.…”

Section: Brake-specific Fuel Consumption (Bsfc)mentioning

confidence: 98%

Combined influence of fuel injection strategy and nanoparticle additives on the performance and emission characteristics of a biodiesel fueled engine

Dinesha

2021

Cogent Engineering

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Waste cooking oil (WCO) biodiesel is becoming promising fuel for compression ignition (CI) engines. Due to the poor thermal efficiency, engine modifications and fuel modifications have been adopted over the years to enhance the performance. In the current study, performance from the biodiesel engine at different injection timing has been studied using waste cooking oil biodiesel mixed with cerium oxide (CeO 2 ) nanoparticles as additives. Experiments are conducted at normal injection timing (27 °bTDC), advanced (30 °bTDC) and retarded injection timing (24 °bTDC) using B20 fuel blended with 80 ppm of nanoparticles. Studies indicated that advancing the injection timing, results in higher brake thermal efficiency (BTE) and reduced brake specific fuel consumption (BSFC) for B20 fuel with nanoparticles as compared to fuel without the use of nanoparticles. Smoke, CO and HC emissions reduced on progressing the injection timings, whereas delaying injection timing shows decreased NOx emissions. By advancing the injection timing and adding CeO 2 nanoparticles to the blend, BTE is increased by 10.9% and BSFC reduced by 11.1% as compared to the neat B20 biodiesel operation. HC and smoke emissions are 35.4% and 14.2%, respectively, reduced for advancing the injection timing with the adding cerium oxide nano particles to the fuel as compared with clean WCO ester with the absence of nanoparticles. Advancing fuel injection timing has no positive influence on the reduction of NOx.

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“…EGR valves were used to adjust the flow rate of EGR at various ratios (i.e., 5%, 10%, and 15%) which are combined with intake air at the entrance manifold. The EGR rate 20 is determined using the following equation: Percentage of EGR = Volume of EGR Total intake air into the cyliner × 100.…”

Section: Engine Test Setupmentioning

confidence: 99%

“…High EGR rates led to a reduction in NO x and PM simultaneously but an enhancement in CO and HC emissions. Rami Reddy et al 20 studied the varying fueling timings and EGR flow rates (5% and 10%) of waste mango seed biodiesel. Implementing EGR rates of 5% and 10% at an advanced fueling timing resulted in appreciable reductions in NO x emissions, with a decrease of 48.38% and 54.83%, respectively.…”

Section: Introductionmentioning

confidence: 99%

The combined effect of split fueling strategy and EGR on the combustion, performance, and emission characteristics of a CRDI biofuel engine

Fernandes,

Rajashekhar,

Dinesha

2024

Heat Trans

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The current research investigates the impact of a split fueling strategy combined with several flow rates of exhaust gas recirculation (EGR) on the combustion and emission characteristics of a diesel engine running on B20 waste cooking oil (WCO) biodiesel. A four‐stroke single‐cylinder common rail direct injection engine was employed for experiments. It operates with a B20 blend of WCO biodiesel at 600 bar pressure for varying pilot fueling conditions of 10%, 20%, and 30%. The B20 blend with 30% pilot fuel injection (B20P30) showed excellent performance and emission characteristics compared with B20 blend with 10% pilot fuel injection (B20P10) and B20 with 20% pilot fuel injection (B20P20). However, B20P30 had greater levels of nitrogen oxide (NOx) emissions than those by diesel. EGR discharge levels in 5% increments, ranging from 0% to 15% were introduced to address this issue. The experimental findings revealed that both cylinder peak pressure and heat release rate showed a reduction when the EGR flow rate was enhanced. The recirculation of exhaust gas into the combustion chamber led to a slight increase in the emission levels of hydrocarbon (HC), carbon monoxide (CO), and smoke, as well as a decrease in carbon dioxide (CO2). Nevertheless, the introduction of EGR significantly decreased NOx emissions by 22.94%, 35.05%, and 47.96% for EGR flow rates of 5%, 10%, and 15%, respectively, when compared with the engine operating without EGR. Overall, the two‐stage fueling strategy, B20P30 blended with 10% EGR corroborated to be beneficial in reducing NOx emissions with minimal performance penalties. Although there was a slight uptick in certain emissions, the overall trade‐off between emission reduction and performance was favorable. The culmination of this study is targeting the objectives of sustainable development goal 7 (clean energy) and goal 13 (climate action) to be achieved by 2030.

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Experimental evaluation of diesel engine powered with waste mango seed biodiesel at different injection timings and EGR rates

Cited by 51 publications

References 36 publications

Effect of α-aluminium oxide nano additives with Sal biodiesel blend as a potential alternative fuel for existing DI diesel engine

Effect of α-aluminium oxide nano additives with Sal biodiesel blend as a potential alternative fuel for existing DI diesel engine

Combined influence of fuel injection strategy and nanoparticle additives on the performance and emission characteristics of a biodiesel fueled engine

The combined effect of split fueling strategy and EGR on the combustion, performance, and emission characteristics of a CRDI biofuel engine

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