Journal ArticleDOI
Performance and emission characteristics of biodiesel–diesel blend and environmental and economic impacts of biodiesel production: A review
M.M. Hasan,Md. Mustafizur Rahman +1 more
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TLDR
In this article, the properties, engine performance, and emission characteristics of biodiesel-diesel blends employed in CI engines under different conditions worldwide as well as the environmental and economic impacts of the biodiesel production, and the effects of this blend on engine durability are also discussed.Abstract:
The objective of this review is to illustrate the properties, engine performance, and emission characteristics of biodiesel–diesel blends employed in CI engines under different conditions worldwide as well as the environmental and economic impacts of biodiesel production, and the effects of this blend on engine durability are also discussed. Biodiesels are gaining more importance as a promising alternative energy resource due to the global fossil fuel crisis and emission problems. However, it was realized that extensive utilization of biodiesel would tax the food chain and could lead to food shortages. Thus, the use of a blend of biodiesel with conventional fuel was suggested to balance its usage, which could still provide a beneficial greenhouse effect. From the results of the investigation, it is reported that blends containing up to 30% biodiesel have almost the same properties as diesel. Most investigation results have shown that, compared to diesel, biodiesel–diesel blend provides shorter ignition delay and a reduced heat release rate as well as a slightly higher efficiency by sacrificing a small amount of fuel. The HC, CO, and PM emissions are reduced to a great extent but the NOx emission becomes slightly higher. Biodiesels are expected to reduce the dependence on imported petroleum with the associated economic vulnerability, reduce greenhouse gas emissions and other pollutants, and revitalize the economy by increasing demand and prices for agricultural products. From the review, it can be said that blends of biodiesel with a small content by volume can be used in existing CI engines without any major modifications.read more
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Journal ArticleDOI
Economics of biodiesel production: Review
TL;DR: In this article, the authors reviewed the researches done on economics of biodiesel production, emphasizing on the methods of assessment and determination of total investment cost and operation cost, as well as on assessment of economically better technology, catalyst and feedstock alternatives.
Journal ArticleDOI
Effect of different technologies on combustion and emissions of the diesel engine fueled with biodiesel: A review
Jiaqiang E,Minhhieu Pham,Minhhieu Pham,Dan Zhao,Yuanwang Deng,DucHieu Le,DucHieu Le,Wei Zuo,Hao Zhu,Teng Liu,Qingguo Peng,Zhiqing Zhang +11 more
TL;DR: In this paper, a comprehensive investigation of different approaches applying to biodiesel fueled engine like biodiesel additives, exhaust gas recirculation (EGR), water injection (WI), emulsion technology (ET), injection strategy modification, simultaneous technologies (ST), combustion chamber geometry modification and low temperature combustion (LTC) mode is performed.
Journal ArticleDOI
Review on transesterification of non-edible sources for biodiesel production with a focus on economic aspects, fuel properties and by-product applications
Shahabaldin Rezania,Bahareh Oryani,Junboum Park,Beshare Hashemi,Krishna Kumar Yadav,Eilhann E. Kwon,Jin Hur,Jinwoo Cho +7 more
TL;DR: In this article, the authors focus on the recent finding in transesterification of non-edible sources for biodiesel production as well as its economic aspects, fuel properties, and by-products applications.
Journal ArticleDOI
NOx reduction behaviour in copper zeolite catalysts for ammonia SCR systems: A review
TL;DR: In this article, the current copper substituted zeolite catalysts, their operating temperature ranges with NOx reduction efficiencies and their deactivation mechanisms are reviewed, and they are shown to be the best catalysts suitable for NH3-SCR.
Journal ArticleDOI
Experimental investigation on the performance, combustion and exhaust emission characteristics of a compression-ignition engine fueled with cottonseed oil biodiesel/diethyl ether/diesel fuel blends
TL;DR: In this paper, the authors examined the diesel engine characteristics for various fractions of diethyl ether (DEE) as an oxygenated fuel additive in cottonseed oil biodiesel-diesel fuel blends.
References
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Journal ArticleDOI
Combustion of fat and vegetable oil derived fuels in diesel engines
TL;DR: In this paper, the status of fat and oil derived diesel fuels with respect to fuel properties, engine performance, and emissions is reviewed, and it is concluded that the price of the feedstock fat or oil is the major factor determining biodiesel price.