Performance and emission study of Mahua oil (madhuca indica oil) ethyl ester in a 4-stroke natural aspirated direct injection diesel engine

Puhan, Sukumar; Vedaraman, N.; Sankaranarayanan, G.; Ram, Boppana V.B.

doi:10.1016/j.renene.2004.09.010

Cited by 266 publications

(112 citation statements)

References 16 publications

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“…The calorific value of CME oil is 40.280 MJ/kg as compared to the 42 MJ/kg for the diesel fuel. These results are in general agreement with those of Pramanik [6] and Puhan et al [7,8] for other bio-fuel diesel blends. The brake specific fuel consumption (bsfc) of the CME varies depending on the engine power and speed.…”

Section: Table 3 Span Gas Concentrationssupporting

confidence: 91%

“…Biodiesel has greater oxygen content than red diesel which may assist in reducing the smoke by locally increasing the constituent of oxygen available for combustion. Puhan et al [8] reported a reduction of 70% smoke in case of Mahua oil methyl ester when compared to diesel. The fuel injection equipment and timing of the test engine were at the normal setting for red diesel fuel; it may be that the smoke level for the CME could be lowered at low load if the injection timing was optimised for this fuel.…”

Section: Figure 7 Variation Of Hc Emissions With Speed For Cme and Itmentioning

confidence: 99%

“…The higher exhaust temperature of the Croton SME is indicative of lower thermal efficiency, less of the energy input in the fuel was converted to useful work, and the remaining heat is given out as exhaust temperature [6]. Puhan [8] considered that the high exhaust temperature results from longer ignition delays that produce a higher exhaust temperature but AlWidyan et al, [10] stated that the higher exhaust temperatures may result from higher combustion temperatures. The emissions of Carbon Monoxide (CO) from the test engine when fuelled with the diesel and the CME and its blends are compared in figure 6.…”

Section: Table 3 Span Gas Concentrationsmentioning

confidence: 99%

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Performance and exhaust emissions of a diesel engine fuelled with Croton megalocarpus (musine) methyl ester

Aliyu

Shitanda

Walker

et al. 2011

Applied Thermal Engineering

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Section: Table 3 Span Gas Concentrationssupporting

confidence: 91%

Section: Figure 7 Variation Of Hc Emissions With Speed For Cme and Itmentioning

confidence: 99%

Section: Table 3 Span Gas Concentrationsmentioning

confidence: 99%

See 1 more Smart Citation

Performance and exhaust emissions of a diesel engine fuelled with Croton megalocarpus (musine) methyl ester

Aliyu

Shitanda

Walker

et al. 2011

Applied Thermal Engineering

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“…The main reason for decrease of thermal efficiency with increase in blend ratio is shorter ignition delay which results in earlier start of combustion than for diesel. This increases the compression work as well as heat loss [32,33] and thus reduces the efficiency [34,35] of the engine. Figure 4 shows the effect of engine speed and different blends of fuel on brake engine torque (BET) at different engine speeds.…”

Section: Engine Performancementioning

confidence: 99%

Numerical modeling on homogeneous charge compression ignition combustion engine fueled by diesel-ethanol blends

et al. 2016

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Abstract. This paper investigates the performance and emission characteristics of HCCI engines fueled with oxygenated fuels (ethanol blend). A modeling study was conducted to investigate the impact of ethanol addition on the performance, combustion and emission characteristics of a Homogeneous Charge Compression Ignition (HCCI) engine fueled by diesel. One dimensional simulation was conducted using the renowned commercial software for diesel and its blend fuels with 5% (E5) and 10% ethanol (E10) (in vol.) under full load condition at variable engine speed ranging from 1000 to 2750 rpm with 250 rpm increment. The model was then validated with other researcher's experimental result. Model consists of intake and exhaust systems, cylinder, head, valves and port geometries. Performance tests were conducted for volumetric efficiency, brake engine torque, brake power, brake mean effective pressure, brake specific fuel consumption, and brake thermal efficiency, while exhaust emissions were analyzed for carbon monoxide (CO) and unburned hydrocarbons (HC. The results showed that blending diesel with ethanol increases the volumetric efficiency, brake specific fuel consumption and brake thermal efficiency, while it decreases brake engine torque, brake power and brake mean effective pressure. In term of emission characteristics, the CO emissions concentrations in the engine exhaust decrease significantly with ethanol as additive. But for HC emission, its concentration increase when apply in high engine speed. In conclusion, using Ethanol as fuel additive blend with Diesel operating in HCCI shows a good result in term of performance and emission in low speed but not recommended to use in high speed engine. Ethanol-diesel blends need to researched more to make it commercially useable.

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“…Compression ignition engines are widely used for agricultural, automotive, transportation and industrial sectors because of their better fuel economy and higher thermal efficiency [2,3]. Because of increasing concern about environmental issues and more stringent government regulations, many researchers have focused on the reduction of exhaust emission levels and improving fuel economy of internal combustion (IC) engines [2,[4][5][6][7]. A lot of research related to engine emission reduction and higher performance has used three important engine parameters: different injection pressure, injection timing and compression ratio [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Fuel Injection Timings of a Direct Injection Diesel Engine Running on Neat Lemongrass Oil-Diesel Blends

Sathiyamoorthi¹,

Sankaranarayanan²

2015

Int. J. Automot. Mech. Eng.

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In this study, the effect of neat lemongrass oil [1]-diesel blends on the performance, combustion and emission characteristics of a direct injection diesel engine was investigated with different injection timings of 21° (retarded), 23° (normal) and 27° (advanced) bTDC positions by using four different fuel blends of diesel, LGO25, LGO50 and neat lemongrass oil. The experimental results show that maximum cylinder pressure and heat release rate increased with advanced fuel injection timing for all test fuels. There was a reduction in BSFC and significant improvement in the brake thermal efficiency (BTE) with advanced injection timing. Emissions from the diesel engine such as smoke and hydrocarbon (HC) were reduced but NO X emission was very high with advanced injection timing compared with other injection timings. When the injection timing is advanced, ignition delay increases, which leads to the more prominent initial phase of combustion in the premixed region. In the light of the experimental results, the optimal injection timing determined for LGO-diesel blends was found to be 27° bTDC.

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Performance and emission study of Mahua oil (madhuca indica oil) ethyl ester in a 4-stroke natural aspirated direct injection diesel engine

Cited by 266 publications

References 16 publications

Performance and exhaust emissions of a diesel engine fuelled with Croton megalocarpus (musine) methyl ester

Performance and exhaust emissions of a diesel engine fuelled with Croton megalocarpus (musine) methyl ester

Numerical modeling on homogeneous charge compression ignition combustion engine fueled by diesel-ethanol blends

Fuel Injection Timings of a Direct Injection Diesel Engine Running on Neat Lemongrass Oil-Diesel Blends

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