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Topic Review
Biography
Topic Review
Biofuels for Spark Ignition Engines
Biofuels are receiving increased scientific attention, and recently different biofuels have been proposed for spark ignition engines. Different biofuels, mainly ethanol, methanol, i-butanol-n-butanol, and acetone, are blended together in single dual issues and evaluated as renewables for SIE. Each blend showed some advantaged and drawbacks in terms of emissions and performance.
883
17 Mar 2021
Topic Review
Piaget SA
Piaget SA (French pronunciation: [pja.ʒɛ]) is a Switzerland luxury watchmaker and jeweller. Founded in 1874 by Georges Piaget in the village of La Côte-aux-Fées, Piaget is currently a subsidiary of the Swiss Richemont group. Piaget was founded as a manufacturer of watch movements but began marketing its own line of watches in the 20th century.
883
01 Dec 2022
Topic Review
Fuzzy Algorithms in Multi-Motor Systems
Multi-motor systems are strong coupled multiple-input–multiple-output systems with independent or mechanically interconnected motors. The main objective in multi-motor drive control is to achieve synchronized operation of all motors in the system. In this paper, multi-motor systems are classified in accordance with their control demands. The review of recent research literature indicates that fuzzy algorithms are widely used in multi-motor control.
883
13 Nov 2020
Topic Review
Ionic Liquids and Lignin
This entry gives overview of the lignin separation methods from lignocellulosic biomass using various methods but the main attention has been paid on lignin separation using ionic liquids. Lignin is a natural polymer, one that has an abundant and renewable resource in biomass. Due to a tendency towards the use of biochemicals, the efficient utilization of lignin has gained wide attention. The delignification of lignocellulosic biomass makes its fractions (cellulose, hemicellulose, and lignin) susceptible to easier transformation to many different commodities like energy, chemicals, and materials that could be produced using the biorefinery concept.
882
10 Oct 2020
Topic Review
Metal (Mo, W, Ti) Carbides for Dry Reforming
Dry reforming of hydrocarbons (DRH) is a pro-environmental method for syngas production. It owes its pro-environmental character to the use of carbon dioxide, which is one of the main greenhouse gases. Transition metal carbides (TMCs) can potentially replace traditional nickel catalysts due to their stability and activity in DR processes.
882
18 Jan 2022
Topic Review
CO
2
Sequestration in Geological Formations
The geological storage of carbon dioxide (CO2) is the most effective and, in many cases, the only viable short- to medium-term alternative for considerably moving towards CO2 sequestration in geological sinks and, thus, lowering net carbon emissions into the atmosphere.
882
04 Nov 2022
Topic Review
Server Immersion Cooling
Immersion cooling is an IT cooling practice by which IT components and other electronics, including complete servers, are submerged in a thermally conductive dielectric liquid or coolant. Heat is removed from the system by circulating liquid into direct contact with hot components, then through cool heat exchangers. Fluids suitable for immersion cooling have very good insulating properties to ensure that they can safely come into contact with energized electronic components.
882
08 Nov 2022
Topic Review
Iron-Based Shape Memory Alloys in Construction
As a promising candidate in the construction industry, iron-based shape memory alloy (Fe-SMA) has attracted lots of attention in the engineering and metallography communities because of its foreseeable benefits including corrosion resistance, shape recovery capability, excellent plastic deformability, and outstanding fatigue resistance. Pilot applications have proved the feasibility of Fe-SMA as a highly efficient functional material in the construction sector.
881
11 Mar 2022
Topic Review
EOR's Significance in Emission Reduction
Limiting the increase in CO2 concentrations in the atmosphere, and at the same time, meeting the increased energy demand can be achieved by applying carbon capture, utilization and storage (CCUS) technologies, which hold potential as the bridge for energy and emission-intensive industries to decarbonization goals. At the moment, the only profitable industrial large-scale carbon sequestration projects are large-scale carbon dioxide enhanced oil recovery (CO2-EOR) projects. This paper gives a general overview of the indirect and direct use of captured CO2 in CCUS with a special focus on worldwide large-scale CO2-EOR projects. On the basis of scientific papers and technical reports, data from 23 contemporary large-scale CO2-EOR projects in different project stages were aggregated, pointing out all the specificities of the projects. The specificities of individual projects, along with the lack of standardized methodologies specific for estimating the full lifecycle emissions resulting from CO2-EOR projects, pose a challenge and contribute to uncertainties and wide flexibilities when estimating emissions from CO2-EOR projects, making the cross-referencing of CO2-EOR projects and its comparison to other climate-mitigation strategies rather difficult. Pointing out the mentioned project’s differentiations and aggregating data on the basis of an overview of large-scale CO2-EOR projects gives useful information for future work on the topic of a CO2-EOR project’s lifecycle emissions.
881
17 Jun 2021
Topic Review
The Lean Blowout Prediction Techniques
The lean blowout is the most critical issue in lean premixed gas turbine combustion. Decades of research into LBO prediction methods have yielded promising results. Predictions can be classified into five categories based on methodology: semi-empirical model, numerical simulation, hybrid, experimental, and data-driven model.
881
30 Nov 2022
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