Effects of the Engine Cooling System Design on Fuel Consumption - a Numerical Assessment

Thomaz, Fabrício; Paula, Glauber Assungao Resende de; Malaquias, Augusto César Teixeira; Baêta, José Guilherme Coelho

doi:10.4271/2020-36-0182

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…To address the key issues like dilution of lubricating oil and carbon deposits caused by ethanol blends and their combustion products, reformulated lubricants, lubricant, and detergent additives can be deployed to ensure long‐term stability 46 . In addition, a specific catalytic converter, wash coat, and recalibrated canister for higher purge flow may be needed for FFE with ethanol blends.…”

Section: Flexible Fuel Engine Featuresmentioning

confidence: 99%

“…45 To address the key issues like dilution of lubricating oil and carbon deposits caused by ethanol blends and their combustion products, reformulated lubricants, lubricant, and detergent additives can be deployed to ensure long-term stability. 46 In addition, a specific catalytic converter, wash coat, and recalibrated canister for higher purge flow may be needed for FFE with ethanol blends. Furthermore, an auxiliary CSS or ethanol heating system and a modified system of de-airing a fuel tank are required to overcome the cold start drivability issues and evaporative emissions due to the lower evaporative pressure of ethanol.…”

Section: Flexible Fuel Engine Featuresmentioning

confidence: 99%

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Critical review on recent progress of ethanol fuelled flex‐fuel engine characteristics

Azhaganathan

Ashok

2022

Intl J of Energy Research

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Summary Ethanol‐powered spark ignition (SI) engines have the potential to mitigate the twin crisis of fossil fuel depletion and exhaust emissions. However, the successful promotion of ethanol is hindered due to the restriction of fuel blend diversity and design features in the conventional SI engine. The fuel flexibility can be overcome by the use of flex‐fuel engine (FFE) technology with appropriate changes in engine design features for a wide range of ethanol blends. The understanding of FFE based on various technical aspects has greater potential in the automotive sector. Therefore, this review paper provides a holistic approach to critically analyze the various technical aspects of FFE. In this work, the application of ethanol blends on FFE output characteristics is reviewed critically considering the effects of engine operating conditions and parameters. Further, the impact of ethanol blends on material compatibility, cold starting characteristics, and unregulated emissions are analyzed. The outcome of the study shows that combustion and performance characteristics such as cylinder pressure(CP), heat release rate (HRR), and brake thermal efficiency (BTE) are improved in FFE operation due to the clean‐burning characteristics of ethanol blends. Also, carbon monoxide(CO) and hydrocarbon (HC) emissions decreased without any significant improvement in nitrogen oxides (NOx) emissions with a wide range of ethanol shares in FFE. Finally, this study summarizes the present status of research in FFE and creates a route towards the direction of multidisciplinary research need in the future that supports the application of different types of biofuels in FFE.

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Section: Flexible Fuel Engine Featuresmentioning

confidence: 99%

Section: Flexible Fuel Engine Featuresmentioning

confidence: 99%

Critical review on recent progress of ethanol fuelled flex‐fuel engine characteristics

Azhaganathan

Ashok

2022

Intl J of Energy Research

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Heat transfer performance of sol-gel synthesized CuONP-doped coolant in diesel engines

Karagöz

Attar

Arbak

et al. 2022

Case Studies in Thermal Engineering

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Study on Driving Forms and Control of Engine Cooling Fan

Xu¹,

Wang²,

Shangguan³

et al. 2023

SAE Technical Paper Series

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<div class="section abstract"><div class="htmlview paragraph">The influence of engine cooling fan on the working state of engine cooling system under different driving forms and control strategy is studied, and a simulation model of engine thermal management system of a commercial vehicle is established. The model takes into account the measured performance parameters of the cooling system components, the gear shift logic of the transmission, the effect of vehicle speed on the airflow rate of the radiator, and proposes a modeling method for different cooling fan driving forms. The performance parameters such as engine outlet coolant temperature and corresponding cooling fan speed under different vehicle speeds and engine loads are calculated and analyzed by using the established model. The road measurement test of the engine thermal management system under the same working condition was carried out to read the relevant data from the engine ECU and confirm the reliability of the data. The correctness of the model is proved by the comparison between the model calculation results and the test results. Based on the established model, the working characteristics of the cooling fan driven by the electronically controlled silicone oil clutch are analyzed, and the improvement method of the control strategy of the electronically controlled silicone oil clutch is proposed. The results show that the cooling fan driven by the electronically controlled silicone oil clutch can adaptively adjust the fan speed, reduce the power consumption of the engine, and make the engine work at the optimal temperature by using the improved control strategy of the electronically controlled silicone oil clutch established in this paper.</div></div>

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Effects of the Engine Cooling System Design on Fuel Consumption - a Numerical Assessment

Cited by 3 publications

References 16 publications

Critical review on recent progress of ethanol fuelled flex‐fuel engine characteristics

Critical review on recent progress of ethanol fuelled flex‐fuel engine characteristics

Heat transfer performance of sol-gel synthesized CuONP-doped coolant in diesel engines

Study on Driving Forms and Control of Engine Cooling Fan

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