Impact of split injection strategy on combustion, performance and emissions characteristics of biodiesel fuelled common rail direct injection assisted diesel engine

Babu, D.; Karvembu, Ramasamy; Anand, R.

doi:10.1016/j.energy.2018.09.193

Cited by 61 publications

(21 citation statements)

References 29 publications

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“…The fuel-injection rate, fuel nozzle design (including number of holes), and fuel-injection pressure all affect the characteristics of the diesel fuel spray and its mixing with air in the combustion chamber [100,[106][107][108].…”

Section: Fuel Injectionmentioning

confidence: 99%

“…However, lower concentrated biodiesel-diesel blends produced lower emissions such as brake specific carbon monoxide (BSCO) and brake specific hydrocarbon (BSHC) emissions than diesel but with increased Nox [132]. The experiments conducted to study the impact of advanced injection strategies on CRDI engine by using biodiesel showed an improved engine performance with less emissions including Nox [107]. The formation of Nox was decreased considerably in a soybean biodiesel engine by recirculating the exhaust gas (EGR), but BSFC and soot formation increased slightly [133].…”

Section: Split Injectionmentioning

confidence: 99%

“…In fact, the use of split injection for biodiesel has worsened Nox formation [132]. Thus, it can be inferred that there are some other strategies that need to be implemented, such as EGR and triple-stage injection [107,131,[133][134][135][136]. Triple-stage injection in particular has proved to be more effective in controlling Nox as well as other emissions simultaneously [135].…”

Section: Split Injectionmentioning

confidence: 99%

“…Nozzle Geometry Improved performance with small hole diameter but worsened NOx [107,[109][110][111][112] Strategies for NOx reduction i) Using nano additive [113] ii) modified nozzle configuration [114] Split Injection NOx worsened [124] Strategies for NOx reduction i) By advanced injection [99,126] ii) By triple injection [125,127] iii) By EGR [128] Solenoid Injector Better performance [142] Lack of literature thus potential area to work Piston Bowl Improved performance by RTPBG [148] piston bowl modifications needs to be tested along with different fuel injection strategies…”

Section: Fuel Injectionmentioning

confidence: 99%

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A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Khan

2020

Energies

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The ever-increasing demand for transport is sustained by internal combustion (IC) engines. The demand for transport energy is large and continuously increasing across the globe. Though there are few alternative options emerging that may eliminate the IC engine, they are in a developing stage, meaning the burden of transportation has to be borne by IC engines until at least the near future. Hence, IC engines continue to be the prime mechanism to sustain transportation in general. However, the scarcity of fossil fuels and its rising prices have forced nations to look for alternate fuels. Biodiesel has been emerged as the replacement of diesel as fuel for diesel engines. The use of biodiesel in the existing diesel engine is not that efficient when it is compared with diesel run engine. Therefore, the biodiesel engine must be suitably improved in its design and developments pertaining to the intake manifold, fuel injection system, combustion chamber and exhaust manifold to get the maximum power output, improved brake thermal efficiency with reduced fuel consumption and exhaust emissions that are compatible with international standards. This paper reviews the efforts put by different researchers in modifying the engine components and systems to develop a diesel engine run on biodiesel for better performance, progressive combustion and improved emissions.

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Section: Fuel Injectionmentioning

confidence: 99%

Section: Split Injectionmentioning

confidence: 99%

Section: Split Injectionmentioning

confidence: 99%

Section: Fuel Injectionmentioning

confidence: 99%

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A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Khan

2020

Energies

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“…Mahua methyl ester on CRDI engine at higher fuel injection pressure has revealed better combustion characteristics, which results in increased BTE with decrease in emissions [17]. Plastic derived biodiesels up to 30% blend have increased BTE by 3%, which has decelerated after 20% of EGR aid to reduce NO X emissions [18].…”

Section: Blends Of Karanja and Castor Biodiesel Of Various Proportionmentioning

confidence: 99%

Effect of Cooled EGR Technique on Performance and Emissions of CRDI Engine Operated with Biodiesel Blends

Rao¹,

Tjprc²

2019

IJMPERD

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Hazardous pollutants and limited sources of fossil fuels made power dependent sectors to focus on alternative sources. However, complete replacement is still constrained and challenging. Attempts to assure complete replacement were more or less fulfilled by biodiesels. In this article, trials made on EGR associated single cylinder CRDI engine with blends of Jatropha and Rice-bran biodiesels are discussed. Set of readings obtained under the split injection system of mass 10% pilot fuel and 90% main fuel maintained at 300 bars with dwell of 10 o and 15% of cold EGR are examined. Results obtained show, brake thermal efficiency is higher at peak load for RJD-II sample than RJD-I sample, whereas specific fuel consumption is same. Sample RJD-I has indicated highest break mean effective pressure at full load which influenced mechanical efficiency. Remarkable changes observed in emissions indicate 11.7% and 16.6% reduction in CO for RJD-I and RJD-II, respectively. NO x discharge reduced up to 5.5% and 7.7% for RJD-I and RJD-II, respectively. CO 2 products are 6.6% and 8.6% higher for RJD-I and RJD-II respectively than diesel.

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Research on fuel injection characteristics of common rail system based on high pressure pipeline integration and matching

Xu,

Ma,

et al. 2024

Energy Science & Engineering

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The modular prediction model of high pressure common rail system was established to study the influence of high‐pressure pipeline integration matching on the fuel injection characteristics of common rail system. The influence of common rail volume on pressure building and pressure fluctuation in common rail tubes was analyzed. The influence of common rail volume on the matching of fuel injection frequency (number of fuel injectors) and fuel supply frequency (number of plunger pumps) was studied by using the control variable method, and the basic optimal solution of the system was obtained. The influence of the common rail structure on the fuel flow characteristics of the system was also studied. The matching relationship between high pressure tubing and common rail system is studied by introducing dimensionless numbers such as length‐diameter ratio of pipeline. The results demonstrate that the increase of the storage space of the accumulator can effectively reduce the fluctuation in the system, so that the injection volume increases slowly and then decreases rapidly, with a slope of −5.70 × 10−3 mm3. The increase of the diameter of the common rail makes the fuel flow characteristics become good first and then bad, and the increase of the length of the common rail can soothe the pressure fluctuations. The increase of the diameter of the link tube (LT) makes the fuel injection volume of the injector increase first and then decrease. The optimal VR solution for the LT is 0.0249 and the optimal ratio of the length to diameter of a pipeline solution is 55.10. The structure of the distribution tube and its matching to the common rail have little effect on the fuel flow characteristics. When the diameter and length of the injection tube are too large, the influence on the injection pressure of the injector is negatively correlated.

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Impact of split injection strategy on combustion, performance and emissions characteristics of biodiesel fuelled common rail direct injection assisted diesel engine

Cited by 61 publications

References 29 publications

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Effect of Cooled EGR Technique on Performance and Emissions of CRDI Engine Operated with Biodiesel Blends

Research on fuel injection characteristics of common rail system based on high pressure pipeline integration and matching

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