Journal ArticleDOI
Estimation of a Lower Heating Value of Vegetable Oil and Biodiesel Fuel
Pramod S. Mehta,K. Anand +1 more
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TLDR
In this article, a convenient method of estimating the heating values of straight and processed vegetable oils based on the bond energies of their fatty acid/methyl ester constituents is proposed, and the accuracy of estimations when compared with the available experimental data is observed to be within 3%.Abstract:
Due to concerns regarding energy security, fuel cost, and the environment, straight and processed vegetable oils are being considered as part or full replacement of diesel fuel in compression ignition engines. The lower heating value of a candidate fuel is an important characteristic used in energy release estimation. In this work, a convenient method of estimating the heating values of straight and processed vegetable oils based on the bond energies of their fatty acid/methyl ester constituents is proposed. The estimated lower heating values of 17 different straight vegetable oils are on the order of 37 MJ/kg and for 15 different processed fuels on the order of 38 MJ/kg. The accuracy of estimations when compared with the available experimental data is observed to be within 3%.read more
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Journal ArticleDOI
Review of biodiesel composition, properties, and specifications
TL;DR: In this paper, the fatty acid (FA) profiles of 12 common biodiesel feedstocks were summarized, and it was shown that several fuel properties, including viscosity, specific gravity, cetane number, iodine value, and low temperature performance metrics are highly correlated with the average unsaturation of the FA profiles.
Journal ArticleDOI
A comprehensive review on properties of edible and non-edible vegetable oil-based biodiesel: Composition, specifications and prediction models
TL;DR: In this paper, the Fatty acid (FA) profiles of 28 edible vegetable oils and 40 non-edible vegetable oils were collected and their main specifications including sulfur content, density, viscosity, flash point, cloud point, pour point, cold filter plugging point, cetane number, iodine number, heating value, acid value and carbon residual before and after transesterification (vegetable oil and biodiesel, respectively) were analyzed in detail.
Journal ArticleDOI
Bio-Jet Fuel Conversion Technologies
Wei Cheng Wang,Ling Tao +1 more
TL;DR: The main challenges for each technology pathway, including conceptual process design, process economics and life-cycle assessment of greenhouse gas emissions are discussed in this paper, and the main challenges of each pathway are discussed.
Journal ArticleDOI
Can BECCS Deliver Sustainable and Resource-efficient Negative Emissions?
TL;DR: In this paper, a whole-systems analysis of the BECCS value chain associated with cultivation, harvesting, transport and conversion in dedicated biomass power stations in conjunction with CCS is presented.
Journal ArticleDOI
Alcohol and ether as alternative fuels in spark ignition engine: A review
Omar I. Awad,Rizalman Mamat,Obed M. Ali,Nor Azwadi Che Sidik,Talal Yusaf,Kumaran Kadirgama,Maurice Kettner +6 more
TL;DR: In this paper, the authors systematically review the use of alcohols and ethers including butanol, methanol, ethanol, and fusel oil, MTBE, and DME as fuels in SI engine and investigate the effects of performance (brake torque, brake power, BSFC, effective efficiency, and EGT), emissions (CO, CO2, NOx and HC) and combustion characteristics of SI engine with alcohol and ether.
References
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Reactive oxygen species and human inflammatory periodontal diseases
TL;DR: This work has shown that damage of tissues in inflammatory periodontal pathologies can be mediated by ROS resulting from the physiological activity of PMN during the phagocytosis of periodontopathic bacteria.