Reduction in Exhaust Gas Temperature of Biodiesel Fueled Engine by Exhaust Gas Recirculation

Ramadhas, Arumugam Sakunthalai; Muraleedharan, C.; Jayaraj, S.

doi:10.1002/clen.200800108

Cited by 7 publications

(4 citation statements)

References 18 publications

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“…In fact, diesel engine usually consumes more fuels to maintain a constant torque output when its speed is increased. Consequently, this releases more heat and hence increases the FGT [36]. Most of works of the literature stated that higher FGT is obtained when using biodiesel compared to other diesel fuel [37].…”

Section: Effect Of Biodiesel On Fgt (Flue Gas Temperature)mentioning

confidence: 99%

Evaluation of Performance and Emission Characteristics of Biodiesel Fuel Produced from Rapeseed Oil

Dieng¹,

Iwanaga²,

Yurie³

et al. 2020

JEPE

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The objective of the present study is to examine and compare the performance and emission characteristic of two biodiesel fuels produced from rapeseed oil via transesterification method. Tested biodiesel fuels (ROME (Rapeseed Oil Methyl Ester) and ROEE (Rapeseed Oil Ethyl Ester)) were selected based on their properties obtained from an optimization of transesterification conditions. A Yanmar diesel engine has led to evaluating their performance parameters such as fuel consumption rate, exhaust gas temperature and emission characteristic corresponding to nitrogen oxides (NO x), carbone monoxide (CO) and carbon dioxide (CO 2). A comparative analysis was carried out using normal diesel fuel tested in same experimental conditions. Fuel consumption rate was measured by observing the volumetric rate from the fuel tank of the engine supported by stopwatch. The exhaust gas temperature and emission characteristic were measured simultaneously by using a testo 350 flue gas analyzer. According to the results, biodiesel fuels showed a higher fuel consumption rate and exhaust gas temperature under an increase of engine speed. They also exhibited lower NO x emission with a slight rise in CO and CO 2 emission compared to mineral diesel fuel. ROME exhibited low emission gas compared to ROEE and mineral diesel. It can be evaluated as a promising alternative fuel for diesel engine.

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Section: Effect Of Biodiesel On Fgt (Flue Gas Temperature)mentioning

confidence: 99%

Evaluation of Performance and Emission Characteristics of Biodiesel Fuel Produced from Rapeseed Oil

Dieng¹,

Iwanaga²,

Yurie³

et al. 2020

JEPE

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“…191 However, a high rate of EGR tends to increase HC and CO emissions. 195 An EGR rate of 5%-15% is suggested for optimum NOx, PM, and CO emissions. 196 Nonetheless, EGR at a low rate is not so effective for biodiesel as in the case of diesel because biodiesel is an oxygenated fuel.…”

Section: Oxides Of Nitrogenmentioning

confidence: 99%

“…Use of EGR higher than 30% 191 . However, a high rate of EGR tends to increase HC and CO emissions 195 . An EGR rate of 5%–15% is suggested for optimum NOx, PM, and CO emissions 196 .…”

Section: Emission Characteristics Of Blendsmentioning

confidence: 99%

Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Hassan

Rahman

et al. 2022

Biofuels Bioprod Bioref

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Depletion of fossil fuel and massive emissions of hazardous greenhouse gases are prompting many researchers to focus on greener renewable fuel such as biodiesel, which has the potential to replace petrodiesel partially. This review covers various aspects related to biodiesel feedstock and its effects on biodiesel characteristics, biodiesel production methods, blending techniques, biodiesel properties, combustion, engine performance, and emission analysis, the effects of different additives on biodiesel characteristics, and some challenges associated with biodiesel. Moreover, different relevant empirical correlations of biodiesel properties and combustion parameters are presented. Despite alkali catalysis being the most adopted transesterification process, lipase catalysis and heterogeneous catalysis are potential processes for future biodiesel production from low‐cost feedstock. Biodiesel has higher viscosity, density, flash point, cetane number, and pour point while having low heating value in comparison with petrodiesel. Most studies conducted on diesel engine led to a reduction in brake power, brake thermal efficiency, carbon monoxide, sulfur dioxide, particulate matter, and unburned hydrocarbons, and increased brake specific fuel consumption and oxides of nitrogen are associated with biodiesel compared to petrodiesel. In brief, biodiesel is comparable to petrodiesel. However, before there is a large‐scale application of biodiesel in the automotive sector it has to overcome some challenges such as its compatibility with engine components, its instability, its effect on engine wear, deposit formation, and clogging of fuel filters and injectors. Increased focus should also be given to second‐generation biodiesel over first‐generation biodiesel because second‐generation biodiesel can offset production costs, reduce deforestation, and solve the food versus fuel problem. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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“…Therefore, diesel engine speed control has been widely investigated in recent years. However, new challenges came up due to the application of new technologies such as exhaust gas recirculation (EGR) [3], hybrid propulsion [2], variable geometry turbocharger (VGT) [4], etc., which made the speed control more complicated and brought higher requirements for the entire engine system. Meanwhile, the actuators of speed control system also get improved, i.e.…”

Section: Introductionmentioning

confidence: 99%

Disturbance Observer-Based Finite-Time Speed Control for Marine Diesel Engine With Input Constraints

Liu

Zhang

et al. 2020

IEEE Access

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In this article, a finite-time observer-based speed control strategy for the marine diesel engine is proposed with consideration of system parameter uncertainties, external disturbances and input constraints. Initially, a finite-time disturbance observer is designed, by which the synchronized uncertainties are accurately estimated in the sense of finite-time stability. Based on the observed information, a speed control strategy is proposed, and practical finite-time stability of the closed-loop system is demonstrated by rigorous theoretical analysis. Besides, for solving the input constraints inherent with the speed control system, an auxiliary variable is introduced to compensate the extra part of control output signals. Finally, numerical simulation and comparison are presented. The common operation situations of the marine diesel engines are taken into account, including starting, acceleration and deceleration between speed set points, sudden load changing, varied propulsion system parameters and different slope limits, etc. Comparing with the related existing method, the effectiveness and advantages of the proposed finite-time observer-based control law are illustrated. INDEX TERMS Finite-time control, disturbance observer, input constraints, marine diesel engine.

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Reduction in Exhaust Gas Temperature of Biodiesel Fueled Engine by Exhaust Gas Recirculation

Cited by 7 publications

References 18 publications

Evaluation of Performance and Emission Characteristics of Biodiesel Fuel Produced from Rapeseed Oil

Evaluation of Performance and Emission Characteristics of Biodiesel Fuel Produced from Rapeseed Oil

Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Disturbance Observer-Based Finite-Time Speed Control for Marine Diesel Engine With Input Constraints

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