Advances in free-piston internal combustion engines: A comprehensive review

Guo, Chendong; Zuo, Zhengxing; Feng, Huihua; Roskilly, Anthony Paul

doi:10.1016/j.applthermaleng.2021.116679

Cited by 29 publications

(11 citation statements)

References 126 publications

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“…Almost every automobile manufacturer, including BMW, Ford, and Mazda, has produced hydrogen-fuelled vehicles 21) . More so, ICEs with free-piston have a number of potential benefits, including a simple structure, high conversion efficiency, multi-fuel capabilities, and a variety of power output types 22) . ICEs have been successfully observed as a clean, effective, and ecologically friendly renewable power source using ethanol and butanol categorized as renewable product which can alleviate the drawbacks of current fuel 23,10) .…”

Section: Combustionmentioning

confidence: 99%

Impact of Internal Combustion Engine on Energy Supplyand its Emission Reduction via Sustainable Fuel Source

Gheidan¹,

Wahid²,

Chukwunonso³

et al. 2022

Evergreen

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The study intends to assess long-term mitigation strategies for reducing CO2 emissions from internal combustion. The research makes use of well-known academic literature with relevant information, covers arguments, comprehension, findings, conclusions, and suggestions from literature. Concepts of combustion, internal combustion engines (ICEs), benefits of internal combustion, CO2 emission, consequences of CO2 emission on the environment, and CO2 emission mitigating measures were taken into consideration for the evidence gathered in this study. The established, reviewed literature served as the basis, pointing petroleum as the primary source of energy for both industrial and home uses is the ICEs. However, it is also account for greenhouse gas emissions like CO2 and others, which have a direct impact on the world climate, thus strongly urges the advancement of environmental sustainability through the dissemination of fresh scientific findings that will aid in reducing CO2 and other greenhouse gases. The use of electric vehicles and biofuel applications were discussed as alternative to the fossil products. The research finding revealed that the use of internal engine a gasoline (GE) car produces 167g of CO2 gas per kilometer, a diesel vehicle (DE) emits 134g, a hybrid (HEV) emits 145g and an electric vehicle (BEV) emits 114g, according to the life cycle assessment. The use of Coconut B5, B15 fuel gives CO2 raise of 2.54 % B20%,4.64 B100%. While when of Camelina fuel lower 13.8 % of B100 than B20%, thus revealed that biofuel can increase or decrease in emission generation. However, biofuel is considered as an alternative energy source that is currently being researched and applied as fuel in motorized vehicles.

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Section: Combustionmentioning

confidence: 99%

Impact of Internal Combustion Engine on Energy Supplyand its Emission Reduction via Sustainable Fuel Source

Gheidan¹,

Wahid²,

Chukwunonso³

et al. 2022

Evergreen

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“…The free piston internal combustion generator (FPEG) cancels the crank connecting rod structure, and the piston drives the generator mover to do reciprocating cutting of the magnetic inductance line, thus outputting electric energy. Therefore, as a new type of power mechanical device, FPEG is suitable for applied in new energy vehicles, marine submarines and other hybrid power devices due to its simple structure, light weight, multi-fuel adaptability, 1 good balance characteristics, and high thermal efficiency. 2…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, at present, domestic and foreign researchers have conducted multi-directional research around FPEG cylinder stable operation. 1 For example, Mikalsen et al carried out predictive control of FPEG's piston motion to improve the load anti-jamming ability. 5 Raheem et al investigated the operating parameters of FPEG to improve the generator performance and reduce emissions.…”

Section: Introductionmentioning

confidence: 99%

Simulation investigates on operation characteristics of free piston internal combustion generator

Yubo,

Yuchun,

Haishu

et al. 2023

Advances in Mechanical Engineering

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To study the influence of the free piston generator structure on its stable operation, this paper chose the combining mathematical and physical methods to build a simulation model to investigate the influence factors. According to the dynamic and thermodynamic equation, the mathematical model of the free piston internal combustion generator system was established. the simulation model was built with the help of MATLAB/Simulink software, and the validity of the model was verified. Based on this, the influences of ignition position and piston group mass on the operation characteristics of free piston generator were investigated. The simulation results show that the factors such as ignition position, piston group mass have significant effects on the compression ratio, cylinder pressure, maximum acceleration, etc. of the free piston generator, which provides a theoretical basis for the stable operation control of the free piston internal combustion generator.

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“…These pollution air will cause serious air pollution [6], and endanger human health [7]. For example, CO 2 emission from automobiles is the main cause of global warming, sulfide dissolved in rain will form acid rain; nitrogen oxides, and carbon hydride under certain conditions will generate secondary pollutants, namely photochemical smog [8]. In view of these harmful emissions, the countries all over the world have been enacting more and more strict regulations [9], and researchers have also done a lot of researches on the reduction in emissions [10].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Injection Strategies on Combustion and Emission Characteristics of Diesel Engine Fueled with Dual Fuel

et al. 2021

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In this work, an effective numerical simulation method was developed and used to analyze the effects of natural gas mixing ratio and pilot-main injection, main-post injection, and pilot-main-post injection strategies on the combustion and emission characteristics of diesel engine fueled with dual fuel. Firstly, the one-dimensional calculation model and three-dimensional CFD model of the engine were established by AVL-BOOST and AVL-Fire, respectively. In addition, the simplified chemical kinetics mechanism was adopted, which could accurately calculate the combustion and emission characteristics of the engine. The results show that the cylinder pressure and heat release rate decrease with the increase of the natural gas mixing ratio and the NOx emission is reduced. When the NG mixing ratio is 50%, the NOx and CO emission are reduced by 47% and 45%, respectively. When the SODI3 is 24 °CA ATDC, the NOx emission is reduced by 29.6%. In addition, with suitable pilot-main injection and pilot-main-post injection strategies, the combustion in the cylinder can be improved and the trade-off relationship between NOx and soot can be relaxed. Thus, the proper main-post injection strategy can improve the combustion and emission characteristics, especially the reduction in the NOx and CO emissions.

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Advances in free-piston internal combustion engines: A comprehensive review

Cited by 29 publications

References 126 publications

Impact of Internal Combustion Engine on Energy Supplyand its Emission Reduction via Sustainable Fuel Source

Impact of Internal Combustion Engine on Energy Supplyand its Emission Reduction via Sustainable Fuel Source

Simulation investigates on operation characteristics of free piston internal combustion generator

Effects of Different Injection Strategies on Combustion and Emission Characteristics of Diesel Engine Fueled with Dual Fuel

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