Analysis and modeling of exhaust gas temperature in an ethanol fuelled HCCI engine

Bahri, Bahram; Aziz, Azhar Abdul; Shahbakhti, Mahdi; Said, Mohd Farid Muhamad

doi:10.1007/s12206-013-0879-z

Cited by 15 publications

(4 citation statements)

References 12 publications

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“…Controlled auto-ignition (CAI) combustion, also known as homogeneous charge compression ignition (HCCI), combines two major stages in ICE cycles, including preparation of premixed air and fuel and the compression of the homogeneous charge until the commencement of auto-ignition [5][6][7]. Accordingly, there will be no longer flame front (e.g., SI engine) and diffusion burning (e.g., diesel engine) [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the influence of internal and external EGR on the combustion characteristics of a controlled auto-ignition two-stroke cycle engine

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of the influence of internal and external EGR on the combustion characteristics of a controlled auto-ignition two-stroke cycle engine

et al. 2014

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“…ethanol blend ratio) is not selected as an input to the ANN model. The ANN outputs are the same as the butanol engine except that NOx is not included because the Yanmar engine has shown negligible NOx emission in HCCI mode in our previous study [53].…”

Section: Modeling Of Ethanol Fueled Enginementioning

confidence: 99%

“…An extensive experimental analysis for ethanol fuel is already available in our previous HCCI studies [20,53,54]. Thus the experimental data for ethanol is not presented in this section for the sake of brevity.…”

Section: Experimental Datamentioning

confidence: 99%

Performance prediction of HCCI engines with oxygenated fuels using artificial neural networks

et al. 2015

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“…By knowing thermal emission values of the system, it is possible to redesign the exhaust system so that when built into an aircraft it does not come into close contact with thermally sensitive components [40÷42]. Knowledge of exhaust gas temperature can also provide information on the operating condition of the engine [43]. A number of studies have been carried out to compare different measuring methods for analyzing temperature of exhaust gases and exhaust system components [44,45].…”

Section: Introductionmentioning

confidence: 99%

Bench Tests for Exhaust Gas Temperature Distribution in an Aircraft Piston Engine with and without a Turbocharger

Czarnigowski¹,

Skiba²,

Rękas³

et al. 2021

Adv. Sci. Technol. Res. J.

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In ultralight aviation, a very important engine parameter is the power-to-weight ratio. On the one hand, there is a tendency to minimize the size and weight of engines, and on the other hand, there is a demand to achieve the highest possible power by using supercharging systems. Increasing power brings many benefits, but it also increases temperature in the exhaust system, posing a threat to delicate parts of the ultralight aircraft fuselage. Therefore, it is necessary to control temperature values in the engine exhaust system. This article presents the temperature distribution in the exhaust system of an aircraft engine by the example of a four-cylinder Rotax 912 engine with an electronic fuel injection system. The research was conducted in two stages: measurements were made first for the engine without a turbocharger with an original exhaust system and later for its modified version with an added turbocharger system. The paper presents a comparative analysis of exhaust gas temperatures measured at three points: 30, 180 and 1000 mm from the cylinder head. The tests were conducted for the same preset engine operating conditions at constant speed and manifold air pressure. It has been shown that the exhaust temperature in the exhaust manifold decreases with the distance from the cylinder head. The highest gradient, over three times higher than the gas temperature from 589.9 °C to 192.3 °C, occurred in the manifold with a turbocharger for 2603 RPM and 31 kPa of manifold air pressure. The introduction of turbocharging causes an increase in exhaust gas temperatures before the turbocharger by an average of 12%, with this increase being greater for operating points of higher inlet manifold pressure. Turbocharging also causes a significant decrease in exhaust gas temperatures behind the turbocharger and the silencer because the temperature drops there by an average of 25%.

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Analysis and modeling of exhaust gas temperature in an ethanol fuelled HCCI engine

Cited by 15 publications

References 12 publications

Experimental investigation of the influence of internal and external EGR on the combustion characteristics of a controlled auto-ignition two-stroke cycle engine

Experimental investigation of the influence of internal and external EGR on the combustion characteristics of a controlled auto-ignition two-stroke cycle engine

Performance prediction of HCCI engines with oxygenated fuels using artificial neural networks

Bench Tests for Exhaust Gas Temperature Distribution in an Aircraft Piston Engine with and without a Turbocharger

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