Performance analysis and emission characteristics of VCR diesel engine fuelled with algae biodiesel blends

Prabakaran, S.; Manimaran, R.; Mohanraj, T.; Ravikumar, M.

doi:10.1016/j.matpr.2020.11.742

Cited by 7 publications

(5 citation statements)

References 16 publications

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“…The available studies [20,21] showed that highly unsaturated FAC in biodiesel promotes a rise in viscosity and lower heating value. On the other hand, saturated FAC in biodiesel will help regulate NOx emissions during combustion [22,23]. Table 4 represents the comparison of the present study FAC profiles with the existing literature on algae oil biodiesel [24].…”

Section: Analysis Of Fatty Acid Compositionsmentioning

confidence: 94%

“…It is an established fact that 10% and 20% biodiesel in diesel fuel, popularly known as B10 and B20, are currently in application in various nations. These blends (B10 and B20) meet the essential requirements of various international standards (ASTM, EN and IS) and can be used without any modification to the engine design [23,25]. As there is a great concern to fuel refinement policies to mitigate the challenges of energy and the environment.…”

Section: Low-temperature Fuel Propertiesmentioning

confidence: 99%

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Preparation and physicochemical properties of naturally grown green Spirogyra algae biodiesel

Kalyani

Prasad

Kolakoti³

2023

CI&CEQ

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In this study, biodiesel was produced from a naturally grown green algae (spirogyra). The algae were cultivated in an open pond for 180 days without any fertilizers or nutrients. The dried algae powder to oil yield and significant fuel properties of viscosity, density, cetane number, calorific value, flash point, pour and cloud points are investigated for B10 to B100 blends. The results of solvent oil extraction show that at a 1:2 (algae powder to solvent) ratio and 65oC, algae oil yield was observed as 22.66%. Furthermore, Box-Behnken assisted response surface optimization technique was implemented. From the 29 random experiments, 96.24% spirogyra algae oil biodiesel (SAOBD) yield was achieved under the optimum conditions of 50oC, 180 minutes, the molar ratio of 9:1 and catalyst concentration of 0.5 wt%. The fatty acid composition (FAC) by gas chromatography reveals that 73.95 wt% saturated FAC was observed in SAOBD. The significant fuel properties are measured by following ASTM-D6751 standards and 40% SAOBD in diesel fuel could possibly be an optimum blend ratio for engine experimentation. Finally, regression equations with high correlation coefficients (R2) were developed for the fuel properties to predict the various blend ratios.

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Section: Analysis Of Fatty Acid Compositionsmentioning

confidence: 94%

Section: Low-temperature Fuel Propertiesmentioning

confidence: 99%

Preparation and physicochemical properties of naturally grown green Spirogyra algae biodiesel

Kalyani

Prasad

Kolakoti³

2023

CI&CEQ

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“…Based on the current situation, the average global temperature is projected to rise by approximately 2 °C over the next 80 years relative to preindustrial levels. This will likely cause substantial adverse impacts including sea level rise, more extreme weather events, ecosystem disruptions, and increased spread of infectious diseases . Currently, the primary sources of CO 2 emissions include the industrial sector, encompassing power generation, iron and steel production, cement manufacturing, among others, and the transportation sector, predominantly characterized by internal combustion engine vehicles .…”

Section: Introductionmentioning

confidence: 99%

“…This will likely cause substantial adverse impacts including sea level rise, more extreme weather events, ecosystem disruptions, and increased spread of infectious diseases. 1 Currently, the primary sources of CO 2 emissions include the industrial sector, encompassing power generation, iron and steel production, cement manufacturing, among others, and the transportation sector, predominantly characterized by internal combustion engine vehicles. 2 These vehicles predominantly rely on internal combustion engines burning fossil fuels like gasoline and diesel, which release CO 2 as a byproduct of combustion.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Port Water Injection on GDI Engine Fuel Economics and Emissions

Zhang,

Huang,

Wang

et al. 2024

ACS Omega

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This experimental study investigates the impact of water injection into intake ports on combustion and emissions in gasoline engines. It also examines particle size distribution at various water-to-fuel ratios and explores the combined effects of water injection and compression ratios in gasoline engines. The results indicate that water injection effectively mitigates engine knock, reduces peak firing pressures, and moderates heat release rates through charge cooling. Advancing ignition timing with water injection advances combustion, resulting in reduced specific fuel consumption, particularly under moderate load conditions. Water injection lowers NOx emissions by reducing combustion temperatures but increases unburned THC emissions due to inhibited oxidation reaction rates. Minor effects were observed on CO emissions. Furthermore, particle numbers were significantly reduced with water injection, particularly in the nucleation mode particles. The simultaneous application of a higher compression ratio and water injection yields substantial improvements in fuel consumption with minimal impact on NOx and THC emissions.

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“…The adaptation towards biofuel has increased in the last few years due to the rise in demand and also by the adoption of various government reforms by the top developed countries like the US, Germany and other such countries (Ogunkunle and Ahmed 2019). Biodiesel can be produced from algae where it is fermented and dewatered to convert it into bioethanol (Prabakaran et al 2021). Another way is the extraction of oil from seeds like Jatropha, where the extracted oil is transesteri ed for usage (Chen et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Sapindus Trifoliatus Biodiesel Production and Performance using Mg-doped CaO Nanocatalyst

Muninathan

Ramanan

2023

Preprint

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The use of biodiesel can reduce dependence on diesel and stabilize the economy when using internal combustion engines. CI engine's performance with biodiesel is substantially low but could be improved by emulsifying nano-additives with biodiesel. Magnesium-doped Calcium Oxide, a novel nanocatalyst is emulsified in its nano form with the Sapindus Trifoliatus biodiesel (STBD) at B25 blend (STBD25+Mg-CaO 30ppm) and tested in the CI engine. The performance results obtained are compared to the baseline values obtained using diesel, Sapindus Trifoliatus biodiesel (STBD25), and Sapindus Trifoliatus biodiesel blended with Cao nano additives (STBD25+30ppm CaO) in the CI engine. . A maximum biodiesel yield of 91.75% was achieved at 58°C, 73 min, a catalyst concentration of 4% (%w / %w) and a methanol: oil molar ratio of 15:1. From the comparison, it is revealed that (i) In-cylinder pressure found to be increased by 3.22%, 6.24% and 9.02%, (ii) HRR increases by 1.68%, 16.69% and 32.5%, (iii) BTE is found to be increased by 4.56%, 8.23% and 11.79%, (iv) UHC decreases by 21.12%, 6.06% and 11.43%, (v) CO decreases by 0.04%, 0.01% and 0.01%, (vi) Smoke decreases by 54.52%, 9.34% and 19.58%, compared with diesel, STBD25+30ppm CaO and STBD25. NOx released while using STBD25+Mg doped CaO in CI engine was observed to decrease compared with STBD25 and STBD25+CaO (by 10.72 % and 18.64 %) and increase compared with diesel (by 8.64%). Whereas an insignificant drop in NOx was observed while using STBD25+Mg doped CaO as fuel compared with STBD25+CaO and STBD25 in spite of a significant increase in HRR and BTE which might be due to the capture of excess oxygen by Mg during the combustion diffusion phase.

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Performance analysis and emission characteristics of VCR diesel engine fuelled with algae biodiesel blends

Cited by 7 publications

References 16 publications

Preparation and physicochemical properties of naturally grown green Spirogyra algae biodiesel

Preparation and physicochemical properties of naturally grown green Spirogyra algae biodiesel

Experimental Study of Port Water Injection on GDI Engine Fuel Economics and Emissions

Enhancement of Sapindus Trifoliatus Biodiesel Production and Performance using Mg-doped CaO Nanocatalyst

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