Collaborative optimization design of intake and combustion chamber structures for heavy-duty natural gas engines under knock limitation

Energy, Год журнала: 2025, Номер unknown, С. 134662 - 134662

Опубликована: Янв. 1, 2025

Язык: Английский

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Effects of the structure parameters on methane emission control of an adsorptive three-way catalytic converter during cold start of the heavy-duty natural gas engines

Energy, Год журнала: 2025, Номер unknown, С. 134654 - 134654

Опубликована: Янв. 1, 2025

Язык: Английский

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CO2-assisted pyrolysis of plastic wastes: A review

Sustainable Energy Technologies and Assessments, Год журнала: 2025, Номер 75, С. 104209 - 104209

Опубликована: Янв. 25, 2025

Язык: Английский

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Hydrocarbon Fuel Burning Analysis Using a Variable B -Number on Turbulent Water Surface with Immersed Thermal Conductors

Combustion Science and Technology, Год журнала: 2025, Номер unknown, С. 1 - 27

Опубликована: Янв. 16, 2025

This study investigates the combustion mechanisms of a floating hydrocarbon fuel layer with immersed heat conductors on turbulent water surface. A mass burning rate model is developed using variable B-number that accounts for transfer pathways and modified latent gasification, which improves characterization accuracy prediction. Experiments are conducted in bench-scale tank, revealing significant relationships between behavior parameters such as type, thickness, turbulence intensity, conductor immersion depth. Quantitative analyses performed convective radiative heating flame, conductive feedback from rod, losses pool surface, at fuel/water interface. The vaporization heptane ranges 346.7–488.4 kJ/kg, compared to 974.7–1257.3 kJ/kg dodecane. rod sensitive showing 26% 38% reduction u′ increases 1.7 3.3 cm/s. has R2 equal 82.5%. parametric further evaluates enhancement effects rods.

Язык: Английский

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Wastewater Treatment by Coupling Adsorption and Photocatalytic Oxidation: A Review of the Removal of Phenolic Compounds in the Oil Industry

Eng—Advances in Engineering, Год журнала: 2024, Номер 5(4), С. 2441 - 2461

Опубликована: Окт. 3, 2024

The development of the oil industry and fossil fuel economy has historically improved quality life for many people, but it also led to significant environmental degradation. As a response, concept ‘sustainable development’ gained prominence recently, emphasizing importance balancing economic progress with protection. Among challenges we face today, preserving water resources is one most pressing. To tackle this issue, researchers are focusing on strategies reduce consumption enhance efficiency wastewater treatment. In context, present review explores recent advancements in novel coupled treatment process that integrates adsorption activated carbon fiber (ACF) photocatalytic oxidation using TiO2 remove micropollutants from wastewater. This innovative approach would allow situ continuous regeneration ACF photocatalysis, increasing oxidative degradation efficiencies supported semiconductor thanks adsorbent material, all under possibility durable low-cost solar radiation. addition, vital meeting regulatory standards, protecting aquatic ecosystems, safeguarding human health.

Язык: Английский

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Multi-objective optimization of chemical reaction characteristics of selective catalytic reduction in denitrification of diesel engine using ELM-MOPSO methodology

Energy, Год журнала: 2024, Номер 311, С. 133386 - 133386

Опубликована: Окт. 9, 2024

Язык: Английский

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High photodegradation of toxic volatile organic compounds by biochar derived Cu doped BiHCC nanocomposites

Journal of environmental chemical engineering, Год журнала: 2025, Номер 13(3), С. 116680 - 116680

Опубликована: Апрель 16, 2025

Язык: Английский

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Preparation and CO2 adsorption of N-doped biochar and effect of acetone on its adsorption performance

Journal of Environmental Management, Год журнала: 2025, Номер 389, С. 126041 - 126041

Опубликована: Июнь 2, 2025

Язык: Английский

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Structural Performance Analysis and Optimization of Small Diesel Engine Exhaust Muffler

Processes, Год журнала: 2024, Номер 12(10), С. 2186 - 2186

Опубликована: Окт. 8, 2024

In recent years, the optimization of diesel engine exhaust mufflers has predominantly targeted acoustic performance, while impact on power performance often been overlooked. Therefore, this paper proposes a parallel perforated tube expansion muffler and conducts numerical analysis its aerodynamic using finite element method. Then, Kriging model is established based Design Experiments to reveal different parameter couplings performance. With transmission loss (TL) pressure (PL) as objectives, multi-objective study carried out competitive particle swarm (CMOPSO). The results indicate that method can simplify improve efficiency. After CMOPSO calculation, average TL increased from 27.3 dB 31.6 dB, PL decreased 1087 Pa 953 Pa, which reduced noise improved fuel economy engine, thus enhancing overall muffler. This work provides reference guidance for optimal design small agricultural engines.

Язык: Английский

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Optimization Analysis of Various Parameters Based on Response Surface Methodology for Enhancing NOx Catalytic Reduction Performance of Urea Selective Catalytic Reduction on Cu-ZSM-13 Catalyst

Processes, Год журнала: 2024, Номер 12(7), С. 1519 - 1519

Опубликована: Июль 19, 2024

While selective catalytic reduction (SCR) has long been indispensable for nitrogen oxide (NOx) removal, optimizing its performance remains a significant challenge. This study investigates the combined effects of structural and intake parameters on SCR performance, an aspect often overlooked in previous research. paper innovatively developed three-dimensional channel model employed response surface methodology to conduct in-depth analysis multiple key factors. multidimensional, multi-method approach enables more comprehensive understanding system mechanics. Through target optimization, we achieved simultaneous improvement three critical indicators: NOx conversion rate, pressure drop, ammonia slip. It is worth noting that rate optimized from 17.07% 98.25%, drop increased 3454.62 Pa 2558.74 Pa, NH3 slip transformed 122.26 ppm 17.49 ppm. These results not only advance theoretical technology but also provide valuable design insights practical applications. Our findings pave way development efficient environmentally friendly systems, potentially revolutionizing control various industries.

Язык: Английский

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