scholarly journals Influence of Moringa oleifera biodiesel–diesel–hexanol and biodiesel–diesel–ethanol blends on compression ignition engine performance, combustion and emission characteristics

RSC Advances ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 4274-4285 ◽  
Author(s):  
Selvakumar Ramalingam ◽  
N. V. Mahalakshmi
Keyword(s):  
Moringa Oleifera ◽  
Engine Performance ◽  
Current Work ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Ethanol Blends

In the current work, the influences of Moringa oleifera biodiesel–diesel–hexanol and Moringa oleifera biodiesel–diesel–ethanol blends on compression ignition engine characteristics were experimentally investigated.

scholarly journals Experimental Analysis of Engine Performance and Exhaust Pollutant on a Single-Cylinder Diesel Engine Operated Using Moringa Oleifera Biodiesel

2021 ◽  
Vol 11 (15) ◽  
pp. 7071
Author(s):  
Manzoore Elahi M. Soudagar ◽  
Haris Mehmood Khan ◽  
T. M. Yunus Khan ◽  
Luqman Razzaq ◽  
Tahir Asif ◽  
...  
Keyword(s):  
High Speed ◽  
Moringa Oleifera ◽  
Engine Performance ◽  
Operating Conditions ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Performance And Emission ◽  
High Speed Diesel ◽  
Moringa Oleifera Oil ◽  
Smoke Opacity

In this investigation, biodiesel was produced from Moringa oleifera oil through a transesterification process at operating conditions including a reaction temperature of 60 °C, catalyst concentration of 1% wt., reaction time of 2 h, stirring speed of 1000 rpm and methanol to oil ratio of 8.50:1. Biodiesel blends, B10 and B20, were tested in a compression ignition engine, and the performance and emission characteristics were analyzed and compared with high-speed diesel. The engine was operated at full load conditions with engine speeds varying from 1000 rpm to 2400 rpm. All the performance and exhaust pollutants results were collected and analyzed. It was found that MOB10 produced lower BP (7.44%), BSFC (7.51%), and CO2 (7.7%). The MOB10 also reduced smoke opacity (24%) and HC (10.27%). Compared to diesel, MOB10 also increased CO (2.5%) and NOx (9%) emissions.

Performance and Emission Investigations of Jatropha and Karanja Biodiesels in a Single-Cylinder Compression-Ignition Engine Using Endoscopic Imaging

2015 ◽  
Vol 138 (1) ◽  
Author(s):  
Gayatri K. Mistri ◽  
Suresh K. Aggarwal ◽  
Douglas Longman ◽  
Avinash K. Agarwal
Keyword(s):  
Cetane Number ◽  
Engine Performance ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Marginal Lands ◽  
Performance And Emission ◽  
Long Term Storage ◽  
Term Storage

Biofuels produced from nonedible sources that are cultivated on marginal lands represent a viable source of renewable and carbon-neutral energy. In this context, biodiesel obtained from Jatropha and Karanja oil seeds have received significant interest, especially in South Asian subcontinent. Both of these fuels are produced from nonedible plant seeds with high oil content, which can be grown on marginal lands. In this research, we have investigated the performance and emission characteristics of Jatropha and Karanja methyl esters (biodiesel) and their blends with diesel. Another objective is to examine the effect of long-term storage on biodiesel's oxidative stability. The biodiesels were produced at Indian Institute of Technology Kanpur, (IIT Kanpur), India, and the engine experiments were performed in a single cylinder, four-stroke, compression ignition engine at Argonne National Laboratory (ANL), Chicago. An endoscope was used to visualize in-cylinder combustion events and examine the soot distribution. The effects of fuel and start of injection (SOI) on engine performance and emissions were investigated. Results indicated that ignition delay was shorter with biodiesel. Consequently, the cylinder pressure and premixed heat release were higher for diesel compared to biodiesel. Engine performance data for biodiesel (J100, K100) and biodiesel blends (J30, K30) showed an increase in brake thermal efficiency (BTE) (10.9%, 7.6% for biodiesel and blend, respectively), brake specific fuel consumption (BSFC) (13.1% and 5.6%), and nitrogen oxides (NOx) emission (9.8% and 12.9%), and a reduction in brake specific hydrocarbon emission (BSHC) (8.64% and 12.9%), and brake specific CO emission (BSCO) (15.56% and 4.0%). The soot analysis from optical images qualitatively showed that biodiesel and blends produced less soot compared to diesel. The temperature profiles obtained from optical imaging further supported higher NOx in biodiesels and their blends compared to diesel. Additionally, the data indicated that retarding the injection timing leads to higher BSFC, but lower flame temperatures and NOx levels along with higher soot formation for all test fuels. The physicochemical properties such as fatty acid profile, cetane number, and oxygen content in biodiesels support the observed combustion and emission characteristics of the fuels tested in this study. Finally, the effect of long-term storage is found to increase the glycerol content, acid value, and cetane number of the two biodiesels, indicating some oxidation of unsaturated fatty acids in the fuels.

scholarly journals Experimental investigations on performance and emission characteristics of variable speed multi-cylinder compression ignition engine using Diesel/Argemone biodiesel blends

2017 ◽  
Vol 36 (3) ◽  
pp. 535-555 ◽  
Author(s):  
Mandeep Singh ◽  
Surjit Kumar Gandhi ◽  
Sunil Kumar Mahla ◽  
Sarbjot Singh Sandhu
Keyword(s):  
Chemical Properties ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Mustard Oil ◽  
Experimental Investigations ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Argemone Mexicana ◽  
Performance And Emission

The present work explores the use of argemone mexicana (non-edible and adulterer to mustard oil) biodiesel in multicylinder compression ignition, indirect injection engine. Argemone Mexicana biodiesel was produced by transesterification process and the important physico-chemical properties of various blends were investigated. Blends of diesel/biodiesel (AB10, AB20, AB30 and AB40) were prepared and used for analysing the engine performance and emission characteristics at varying loads (0, 25, 50 and 75%) and speeds (2500–4000 r/min). The results show improvement in indicated thermal efficiency and indicated specific fuel consumption with increased proportion of biodiesel in diesel, when compared to conventional diesel. In addition, exhaust emissions such as carbon monoxide, unburnt hydrocarbon and smoke opacity were significantly reduced by AOME/diesel blends. The improvement in engine performance and exhaust emissions were observed up to 30% blending of AOME/diesel. Beyond that, higher blend (AB40) showed deterioration in performance characteristics in contrast to AB30 but still better as compared to conventional diesel.

scholarly journals Engine Performance and Emission Characteristics of a Direct Injection Diesel Engine Fuelled with 1- Hexanol as a Fuel Additive in Mahua Seed Oil Biodiesel Blends

2017 ◽  
Vol 13 (2) ◽  
Keyword(s):  
Seed Oil ◽  
Methyl Esters ◽  
Engine Performance ◽  
Alternative Fuel ◽  
Fuel Additive ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Performance And Emission ◽  
Performance And Emissions

The increasing industrialization and motorization of the world has led to a steep rise for the demand of petroleum products. Petroleum based fuels are obtained from limited reserves. In the wake of this situation, there is an urgent need to promote use of alternative fuel which must be technically feasible, economically competitive, environmentally acceptable and readily available. In the present study, Mahua seed oil methyl esters (MSOME) were prepared through transesterification and evaluation of important physico-chemical properties was carried and the properties were found within acceptable limits. A compression ignition engine was fuelled with three blends of MSOME with diesel (10, 20 and 30% on volume basis) and various performance and emission characteristics were evaluated and results compared with baseline data of diesel. The results suggest the BTE was higher for MSOME blends and BSFC, HC and smoke opacity were lower as compared to diesel fuel. This may be attributed to improved combustion for MSOME are oxygenated fuels and have higher cetane number. The values of NOx were found almost nearer for all blends as compared to diesel. Addition of 1-hexanol (Ignition improver) 0.5%, 1% volume ratios to the optimum blend (MSOME30) for evaluating the engine performance and emissions parameters and the main purpose of ignition improver is to improve combustion process and reduction in engine emissions. Finally results shows that performance and emissions have been to justify the potentiality of the mahua seed oil methyl esters as alternative fuel for compression ignition engines without any modifications

Reactivity Controlled Compression Ignition Engine Fueled with Mineral Diesel and Butanol at Varying Premixed Ratios and Loads

2021 ◽  
pp. 1-24
Author(s):  
Avinash Kumar Agarwal ◽  
Akhilendra P. Singh ◽  
Vikram Kumar
Keyword(s):  
Engine Speed ◽  
Particle Number ◽  
Engine Performance ◽  
Emission Characteristics ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Engine Exhaust ◽  
Reactivity Controlled Compression Ignition ◽  
Performance And Emission ◽  
Combustion Performance

Abstract Researchers have investigated reactivity-controlled compression ignition (RCCI) combustion in the past several years because of its excellent combustion, performance, and emission features. In this experimental study, the RCCI combustion strategy was investigated using mineral diesel/ butanol fuel-pair at various premixed ratios (rp) on an energy basis (rp= 0.25, 0.50, and 0.75) at varying engine loads (BMEP of 1, 2, 3, and 4 bar) vis-à-vis baseline compression ignition (CI) combustion (rp= 0.0) strategy. Experiments were performed at constant engine speed (1500 rpm) in a single-cylinder research engine equipped with state-of-the-art features. The outcome of the investigation showed that port injection of Butanol as low reactivity fuel (LRF) improved the combustion and yielded superior engine performance than baseline CI combustion strategy. Engine exhaust emissions exhibited significantly lower nitrogen (NOx) oxides with butanol RCCI combustion strategy than baseline CI combustion strategy. Increasing rp of Butanol showed improved combustion and emission characteristics; however, performance characteristics were not affected significantly. Particulate characteristics of the RCCI combustion strategy also showed a significant reduction in particle number concentration than baseline CI combustion. Slightly different combustion, performance, and emission characteristics of mineral diesel/ butanol fueled RCCI combustion strategy compared to other test fuels such as mineral diesel/ methanol, and mineral diesel/ ethanol-fueled RCCI combustion strategy was an interesting observation of this study. Overall, this study indicated that Butanol could be used as LRF in RCCI combustion strategy engines to achieve superior combustion and emission characteristics.

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