A new and efficient mechanism for spark ignition engines

Shadloo, Mostafa Safdari; Poultangari, Reza; Jamalabadi, Mohammad Yaghoub Abdollahzadeh; Rashidi, Majid

doi:10.1016/j.enconman.2015.03.017

Cited by 35 publications

(11 citation statements)

References 51 publications

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“…Previous studies related to the speed profile optimization were summarized in Table 1.1. Heat engine Simulation [29], [35], [36], [37] Combustion engine HCCI Simulation [30] CI Simulation [31], [38] SI Simulation [33], [39], [40], [34] Experiment [32] In previous studies of speed profile modulation through simulation, the in-cylinder gas property was assumed to be a constant that cannot reflect the temperature or composition effect. In addition, studies using the Woschni model, which are difficult to reflect the speed change in the cycle, were mainly conducted.…”

Section: Engine Speed Profile Optimizationmentioning

confidence: 99%

Spark-ignition engine speed profile optimization for maximizing the net indicated efficiency and quantitative analysis of the optimal speed profile

Song

2022

Applied Energy

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Section: Engine Speed Profile Optimizationmentioning

confidence: 99%

Spark-ignition engine speed profile optimization for maximizing the net indicated efficiency and quantitative analysis of the optimal speed profile

Song

2022

Applied Energy

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“…They reported that a reduction in the oil level and/or the use of poor quality oil can cause an increase in structure-borne acoustic and airborne acoustic signals of certain frequency bands. Shadloo et al [33] designed a crank and slider mechanism to enhance the combustion performance of a four-stroke spark ignition (SI) engine. By lowering the ratio of the engine's connecting-rod length to crank radius (l/R), the isentropic process in the power stroke was desirably resembled, leading to a reduction in the maximal gas temperature after the first spark and increase in the compression ratio.…”

Section: Appl Sci 2019 9 406 12 Of 30mentioning

confidence: 99%

Performance Enhancement of Internal Combustion Engines through Vibration Control: State of the Art and Challenges

et al. 2019

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Internal combustion engines (ICEs) are the primary source of power generation in today’s driving vehicles. They convert the chemical energy of the fuel into the mechanical energy which is used to drive the vehicle. In this process of energy conversion, several parameters cause the engine to vibrate, which significantly deteriorate the efficiency and service life of the engine. The present study aims to gather all the recent works conducted to reduce and isolate engine vibration, before transmitting to other vehicle parts such as drive shafts and chassis. For this purpose, a background history of the ICEs, as well as the parameters associated with their vibration, will be introduced. The body of the paper is divided into three main parts: First, a brief summary of the vibration theory in fault detection of ICEs is provided. Then, vibration reduction using various mechanisms and engine modifications is reviewed. Next, the effect of using different biofuels and fuel additives, such as alcohols and hydrogen, is discussed. Finally, the paper ends with a conclusion, summarizing the most recent methods and approaches that studied the vibration and noise in the ICEs.

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“…These two types of flame-based operation have both been widely employed in particle oxide preparation in laboratory and industry for biomedical applications. Different numerical solutions have been proposed to investigate complex heat transfer and fluid dynamics engineering problems [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

A simplified mathematical study of thermochemical preparation of particle oxide under counterflow configuration for use in biomedical applications

Tabaei

Sadeghi

Hosseinzadeh

et al. 2019

J Therm Anal Calorim

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This study mathematically presents a counter-flow non-premixed thermo-chemical technique for preparing a particle oxide used for cancer diagnosis and treatment. For this purpose, preheating, reaction, melting, and oxidation processes were simulated considering an asymptotic concept. Mass and energy conservation equations in dimensional and non-dimensional forms were solved using Matlab ®. To preserve the continuity in the system and calculate the locations of melting and flame fronts, promising jump conditions were derived. In this research, variations of flame temperature, flame front location and mass fractions of the particle, particle oxide and oxidizer, with position, Lewis number and initial temperature of the particles were investigated. The simulation results compared with those obtained from an earlier experimental study under the same conditions. Regarding the comparison, an appropriate compatibility was observed between the results. Based on the simulation results, flame temperature was found to be about 1310 K. Positions of flame and melting fronts were found to be-1.8 mm and-1.78 mm, respectively.

show abstract

A new and efficient mechanism for spark ignition engines

Cited by 35 publications

References 51 publications

Spark-ignition engine speed profile optimization for maximizing the net indicated efficiency and quantitative analysis of the optimal speed profile

Spark-ignition engine speed profile optimization for maximizing the net indicated efficiency and quantitative analysis of the optimal speed profile

Performance Enhancement of Internal Combustion Engines through Vibration Control: State of the Art and Challenges

A simplified mathematical study of thermochemical preparation of particle oxide under counterflow configuration for use in biomedical applications

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