Warm Start Robustness Improvement Using the Heated Cold Start System in Flex Fuel Engines

Oliveira, Fernando de Sousa; Lepsch, Fernando; Silva, Leandro Luiz Franco da; Oliveira, Luiz Fernando de; Coletto, Tulio

doi:10.4271/2015-36-0202

Cited by 7 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The heating of ethanol is required to increase the range of fuel pressure regulators to extend the boiling point 202 . The CSS is developed further with an integrated heater and multi‐hole fuel injection system to reduce the fuel injection timing and start period 203 . Also, the NMHC, HC, and CO emissions are reduced with this fuel heating system drastically 204,205 .…”

Section: Challenges Associated With Ethanol As a Fuel In Flex‐fuel En...mentioning

confidence: 99%

“…202 F I G U R E 1 4 Cold start characteristics of ethanol blends in FFE 187 The CSS is developed further with an integrated heater and multi-hole fuel injection system to reduce the fuel injection timing and start period. 203 Also, the NMHC, HC, and CO emissions are reduced with this fuel heating system drastically. 204,205 Whereas, the problem of overheating with electrical heating is minimized with electronic cold start technology using the PTC thermistor with calibration of power required for heating based on fuel temperature.…”

Section: Cold Start Characteristicsmentioning

confidence: 99%

See 1 more Smart Citation

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

Azhaganathan

Ashok

2022

Intl J of Energy Research

View full text Add to dashboard Cite

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.

show abstract

Section: Challenges Associated With Ethanol As a Fuel In Flex‐fuel En...mentioning

confidence: 99%

Section: Cold Start Characteristicsmentioning

confidence: 99%

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

Azhaganathan

Ashok

2022

Intl J of Energy Research

View full text Add to dashboard Cite

show abstract

“…It is important to highlight that the recent literature presents solutions to some of the problems mentioned above. Bosch [58] proposes the FlexStart system, which allows efficient cold starting even with 100% ethanol in the fuel tank. Its operating principle is to heat the fuel before it is injected into the engine, which results in better spraying and improves combustion and drivability.…”

Section: Brazilian Ethanolmentioning

confidence: 99%

The misleading total replacement of internal combustion engines by electric motors and a study of the Brazilian ethanol importance for the sustainable future of mobility: a review

Malaquias

Netto

Filho

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

The sustainable future of mobility should not be viewed as the burial of the internal combustion engine (ICE), nowadays the main source of vehicular propulsion. Even with the increasing electrification of the transport means, the low global percentage of the electric fleet, around 0.2% of the total road vehicles, associated with an annual growth rate of less than 60%, indicates that they will not significantly change the market share in the short-and medium-term periods. This means that fuel demanded by ICEs and pollutant emissions generated by them will be very relevant in the years to come. Thus, the search for significant advances in technology associated with the use of renewable fuels is very important for environmental and economic sustainability. In this regard, the present work intends to demonstrate that the association between Brazilian ethanol and advanced technology in ICEs is a promising alternative for a more sustainable global mobility in the future. For this purpose, some ethanol properties are presented to justify its relevance as an ideal biofuel for highly boosted and efficient engines. Then, environmental, social, ethical and economic impacts arising from electric vehicles are investigated, demystifying the zero-emission vehicle terminology attributed to them and, finally, new technologies for ICEs are presented, proving that they are constantly evolving and improving, which is fundamental to the future of the world automotive fleet.

show abstract

Internal combustion engines and biofuels: Examining why this robust combination should not be ignored for future sustainable transportation

Santos

Roso

Malaquias

et al. 2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Warm Start Robustness Improvement Using the Heated Cold Start System in Flex Fuel Engines

Cited by 7 publications

References 5 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

The misleading total replacement of internal combustion engines by electric motors and a study of the Brazilian ethanol importance for the sustainable future of mobility: a review

Internal combustion engines and biofuels: Examining why this robust combination should not be ignored for future sustainable transportation

Contact Info

Product

Resources

About