Evaluation of life-cycle assessment of<i>Jatropha</i>biodiesel

Jingura, Raphael M.; Kamusoko, Reckson

doi:10.1080/15567249.2011.637546

Cited by 11 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During peak load condition, the higher levels of smoke emissions were recorded by mineral diesel fuel and Chlorella Emersonii and its fuel blends possess 62.77 HSU (Hartridge Smoke Units) for B40 and 59.8 HSU for B100 which indicated more fuel in the combustion chamber resulting in high un-burned fuels content in exhaust emissions and minimal stoichiometric ratio (table 4). This increased range of smoke emission was attributed to fuel clog, worn, lag in injection pressure and timing, fault in air and fuel filters, deprived fuel mixing rate, minimal adiabatic flame temperature [5,36]. Figure 19 depicts a schematic of combining chlorella emersonii to make biodiesel for testing.…”

Section: Nitrogen Oxide (No X )mentioning

confidence: 99%

“…Studies have discovered many feedstocks for the production of biodiesel that could potentially serve as replacements for fossil fuels [4]. Most commonly used raw biodiesels are soybean oil, mahua seed oil, corn seed oil, jatropha, Pongamia pinnata, and Sunflower oils; biodiesels extracted from these alternative sources have been tested for combustion, tailpipe emissions, and performance and were found effective [5]. Gavhane et al [6] evaluated the influence of silica-based nano additions on the emission performance of soybean-based biodiesel.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A tribological characteristics and experimental analysis of novel chlorella biodiesel blends on engine performance

2023

View full text Add to dashboard Cite

The present work proposes an investigation to assess the viability of novel mineral-based biodiesel developed from chlorella emersonii, a species of green algae. A single-cylinder, water-cooled, the four-stroke diesel engine was used in the experiments. Among the different biodiesel blends that were investigated for their tribological and engine performance characteristics, the B40 chlorella emersonii biodiesel blend exhibited the least coefficient of friction and while B40 and B100 blends offered enhanced performance characteristics. Comparatively, the remaining test fuel blends attained higher steady-state coefficient rates of friction: B10 (30.8%), B20 (16.21%), B60 (7.7%), B90 (18.2%), and mineral diesel (39.44%). B100 fuel blend exhibited the highest Flash temperature parameter of 83 oC while mineral diesel exhibited the lowest at 58.4 oC. These values were inversely proportional to their respective wear scar diameters with mineral diesel showing the highest wear scar diameter at 0.768 mm. The diameter of the wear scar yielded minimal wear for fuel blends from B40 to B100 and mineral diesel. The corrosion physiognomies of the test fuel blends were investigated, and the B40 fuel blend demonstrated lower corrosion characteristics with a steady-state coefficient of friction of 0.081 when compared to the other fuel blends. The investigated gasoline blends (B40 and B100) were tested on a diesel engine, which demonstrated reduced brake thermal efficiency and a wider range of brake-specific energy consumption under peak load circumstances. The B40 fuel blend exhibited better emissions performance during testing where the unburnt hydrocarbons, carbon monoxide, and smoke emitted were 10.94%, 15.7%, and 23.4% less than mineral diesel.

show abstract

Section: Nitrogen Oxide (No X )mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A tribological characteristics and experimental analysis of novel chlorella biodiesel blends on engine performance

2023

View full text Add to dashboard Cite

show abstract

“…To be a suitable alternative of petrodiesel in terms of mitigation of climate change, Jatropha biodiesel needs to be supported by lifecycle data. The environmental benefits of Jatropha biodiesel in comparison to petro-diesel is in doubt [169,170]. Following measures can improve lifecycle performance of Jatropha biodiesel:…”

Section: Lifecycle Assessment (Lca) Of the Jatropha Biofuelmentioning

confidence: 99%

Jatropha Biofuel Industry: The Challenges

Moniruzzaman¹,

Yaakob²,

Shahinuzzaman³

et al. 2017

Frontiers in Bioenergy and Biofuels

View full text Add to dashboard Cite

Considering environmental issues and to reduce dependency on fossil fuel many countries have politicized to replenish fossil fuel demand from renewable sources. Citing the potential of Jatropha mostly without any scientific and technological backup, it is believed to be one of the most suitable biofuel candidates. Huge grants were released by many projects for huge plantation of Jatropha (millions of hectares). Unfortunately, there has been no significant progress, and Jatropha did not contribute much in the energy scenario. Unavailability of high-yielding cultivar, large-scale plantation without the evaluation of the planting materials, knowledge gap and basic research gap seem to be the main reasons for failure. Thus, the production of Jatropha as a biofuel has been confronted with various challenges such as production, oil extraction, conversion and also its use as a sustainable biofuel. In this chapter, we disclose the challenges and possible remedy for the contribution in the biofuel industry.

show abstract

“…There are several LCA studies on the preparation of biodiesel from Jatropha seed, especially from India [27], Malaysia [35], Thailand [36], Mexico [30], Zimbabwe [37], and Indonesia [38], but few studies have been reported from China. Most of the studies chose waste cooking oil (WCO) or palm oil as the feedstock oil, and the evaluation method was only using LCA or Life Cycle Cost (LCC).…”

Section: Introductionmentioning

confidence: 99%

Life cycle assessment and life cycle cost analysis of Jatropha biodiesel production in China

Liu

Zhu

Zhang

et al. 2022

Biomass Conv. Bioref.

View full text Add to dashboard Cite

In this study, a Life Cycle Cost (LCC) is integrated within a life cycle assessment (LCA) model to comprehensively evaluate the energy, environment, and economic impacts of the Jatropha biodiesel production in China. The total energy consumption of producing 1 ton of Jatropha biodiesel is 17566.16 MJ, in which fertilizer utilization and methanol production consume 78.14% and 18.65% of the overall energy consumption, respectively. The production of 1 ton of Jatropha biodiesel emits a number of pollutants, including 1184.52 kg of CO2, 5.86 kg of dust, 5.59 kg of NOx, 2.67 kg of SO2, 2.38 kg of CH4, and 1.05 kg of CO. By calculating and comparing their environmental impacts potentials, it was discovered that NOx and dust emissions during the fertilizer application, combustion of Jatropha shells, and methanol production urgently require improvement, as they contribute to serious global warming and particulate matter formation issues. LCC study shows that the cost of Jatropha biodiesel is 796.32 USD/ton, which is mostly contributed by Jatropha oil cost (44.37% of the total cost) and human input (26.70% of the total cost). Additional profits are generated by the combustion of Jatropha shells and glycerol by-product, which can compensate 16.76% of the cost of Jatropha biodiesel. Graphical Abstract

show abstract

Evaluation of life-cycle assessment ofJatrophabiodiesel

Cited by 11 publications

References 21 publications

A tribological characteristics and experimental analysis of novel chlorella biodiesel blends on engine performance

A tribological characteristics and experimental analysis of novel chlorella biodiesel blends on engine performance

Jatropha Biofuel Industry: The Challenges

Life cycle assessment and life cycle cost analysis of Jatropha biodiesel production in China

Contact Info

Product

Resources

About