Effect of injector opening pressure on performance, emission and combustion characteristics of <scp>DI</scp> diesel engine fueled with diesel and honne oil methyl ester

Venkanna, B.K.; Reddy, C. Venkataramana

doi:10.1002/ep.10607

Cited by 19 publications

(5 citation statements)

References 30 publications

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“…The liquid water is cooled and sent back to a water tank (5). A recuperator is installed downstream the separator to heat the high-pressure air (4). Within the recuperator, the air is heated by the exhaust flow (7), and then an intra-cylinder heat recovery process is achieved.…”

Section: Description Of the Split Engine Cyclementioning

confidence: 99%

“…The high power density, good transient response and low cost make the ICE an excellent fit with the needs of road vehicles in an environment with an abundant supply of low cost liquid fossil fuels [1][2][3]. However, climate change and diminishing stocks of petroleum have led to a drive for higher efficiency solutions [4,5]. Alternative power converters such as fuel cells and batteries and increased electrification of the transmission between the prime mover and the wheels and downsizing of the ICE have also been proposed to improve the vehicle system performance [6].…”

Section: Introductionmentioning

confidence: 99%

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A novel split cycle internal combustion engine with integral waste heat recovery

2015

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h i g h l i g h t sA novel engine thermodynamic cycle is proposed. Theoretical analysis is applied to identify the key parameters of the thermodynamic cycle.The key stages of the split cycle are analysed via one-dimensional modelling work. The effecting mechanism of the split cycle efficiency is analysed. a b s t r a c tTo achieve a step improvement in engine efficiency, a novel split cycle engine concept is proposed. The engine has separate compression and combustion cylinders and waste heat is recovered between the two. Quasi-isothermal compression of the charge air is realised in the compression cylinder while isobaric combustion of the air/fuel mixture is achieved in the combustion cylinder. Exhaust heat recovery between the compression and combustion chamber enables highly efficient recovery of waste heat within the cycle. Based on cycle analysis and a one-dimensional engine model, the fundamentals and the performance of the split thermodynamic cycle is estimated. Compared to conventional engines, the compression work can be significantly reduced through the injection of a controlled quantity of water in the compression cylinder, lowering the gas temperature during compression. Thermal energy can then be effectively recovered from the engine exhaust in a recuperator between the cooled compressor cylinder discharge air and the exhaust gas. The resulting hot high pressure air is then injected into a combustor cylinder and mixed with fuel, where near isobaric combustion leads to a low combustion temperature and reduced heat transferred from the cylinder wall. Detailed cycle simulation indicates a 32% efficiency improvement can be expected compared to the conventional diesel engines.

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Section: Description Of the Split Engine Cyclementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel split cycle internal combustion engine with integral waste heat recovery

2015

View full text Add to dashboard Cite

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“…They reported that, for JMETPO20 at 220 bar pressure the brake thermal efficiency was marginally improved and decreased the HC, CO and smoke emissions. Venkanna and Venkataramana Reddy investigated experimentally the performance, exhaust emission, and combustion characteristics of a DI diesel engine, when fueled with neat diesel (ND) and Honne oil methyl ester (HOME). The injector opening pressure (IOP) is varied from 200 bar (manufacturer specified value) to 260 bar in steps of 20 bar.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on direct injection diesel engine fuelled with addition of titanium dioxide nanoparticle to M. elangi biodiesel for varying injection pressures

Krupakaran¹,

Hariprasasd²,

Gopalakrishna

2019

Env Prog and Sustain Energy

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Nowadays, rapid increase in vehicle population led to increase in demand of fossil fuel. Decrease in availability of crude oil made the researchers to find a renewable alternative fuel, biofuels. Methyl esters are preferred as alternative to petro‐diesel engines. The present experimental study of Mimusops elangi methyl ester (MEME) is used as biodiesel on single cylinder four stroke, direct injection air cooled diesel engine at a constant speed of 1500 rpm at various loads. The general optimum biodiesel blends 20MEME‐80D (20%MEME‐80%Diesel) with optimum of 25 ppm TiO2 nanoparticle additives were taken for the experiment. The injection pressure of the engine is varied from 180 bar to 240 bar in the steps of 20 bar. The results of experimental investigation reported that the change in injection pressure 220 bar with modified fuel (20MEME‐80D + 25 ppm TiO2 nanoparticle) shows better performance and emission characteristics in the diesel engine. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

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“…Diesel engines are extensively applied in transportation field and manufacturing industry due to their high thermal efficiency and reliable performance. However, diesel engines still have major problems of simultaneous reduce nitrogen oxide (NOx) and smoke emissions due to diffusion‐governing combustion mechanisms . Many new combustion modes such as homogenous charge compression ignition and dual‐fuel have been proposed to overcome this problem .…”

Section: Introductionmentioning

confidence: 99%

Effects of co‐combustion ratio on rapid combustion, cyclical variation, and emissions of a heavy‐duty diesel engine fueled with diesel‐methanol dual‐fuel

Zhang

2017

Env Prog and Sustain Energy

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Diesel-methanol dual-fuel (DMDF) combustion was achieved on a 6-cylinder, heavy-duty, turbocharged and common-rail diesel engine. In DMDF mode, the coalproduced methanol is induced to the upstream of the intake manifold and premixed with the fresh air to form a homogeneous methanol-air mixture and then ignited by directinjected pilot diesel in cylinder. The purpose of this study is to investigate the effects of co-combustion ratio (CCR) on the rapid combustion, cyclical variation and emissions of the DMDF engine. The experimental results show that CCR affect the rapid combustion (a) and knock tendency (b) greatly. With CCR increasing, both a and b increase significantly. The b exhibits an obviously large value under heavy load although CCR and a are small. At larger CCR, DMDF mode may generate a seriously cyclical variation and the coefficient of variation for indicated mean effective pressure (COV IMEP ) exhibits a relatively large value. However, with engine load increasing, the cyclical variation can be obviously decreased. It is also shown that both NOx and smoke emissions in DMDF mode present an obviously decrease trend, while CO and HC emissions exhibits an increase trend. A further reduction of NOx and smoke emissions can be obtained by increasing CCR, but CO and HC emissions are increased in this case.

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Effect of injector opening pressure on performance, emission and combustion characteristics of DI diesel engine fueled with diesel and honne oil methyl ester

Cited by 19 publications

References 30 publications

A novel split cycle internal combustion engine with integral waste heat recovery

A novel split cycle internal combustion engine with integral waste heat recovery

Experimental investigation on direct injection diesel engine fuelled with addition of titanium dioxide nanoparticle to M. elangi biodiesel for varying injection pressures

Effects of co‐combustion ratio on rapid combustion, cyclical variation, and emissions of a heavy‐duty diesel engine fueled with diesel‐methanol dual‐fuel

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