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Topic Review
Biography
Topic Review
Major Synthetic Fuels
A concise yet comprehensive overview of major synthetic fuels currently in production worldwide. The fuels are virtually categorised in an intelligible manner with detailed descriptions of their chemical equations, feedstocks, production processes, applications, and global market leaders.
910
27 Mar 2023
Topic Review
A city Multi-Floor Manufacturing Cluster
Multi-floor manufacturing cluster (MFMC) comprise production and service enterprises of various types of ownership, mainly SMEs, with different production orientations, with the presence of small-scale in-house equipment. This feature of MFMC promotes business competition, allowing for creating collaborative and networked organizations that can happen at some stages of development and can reach a level of a virtual manufacturing network based on Digital Twins models to fulfil customer orders.
910
28 Mar 2022
Topic Review
Renewable Carbon
Renewable carbon is one of the most important materials which have been used in a wide range of applications, such as chemical catalysis, medicinal purification, environmental cleaning and metal extraction. Meanwhile, with the development of technology, the use field of renewable carbon keeps expanding to new areas, such as electrode and super-capacitors for energetic cell, as well as many other innovative industries. Similar to carbon nanotube (CNT) or graphene, it has variable characteristics of surface groups, along with high interface reactivity. These surface groups provide abundant reaction sites for chemical modification via electrostatic/van der Waals force, chemical bonding or noncovalent π-π interactions, thus imparting carbon particles with excellent natural affinity toward a large number of substrates. Moreover, the highly developed porous structure renders renewable carbon with a large range of surface area (500-3000 m2/g). It consists of thin graphite layers with exceptional mechanical strength, which highlights its great potential to be used as reinforcement agent in advanced packaging composites.
910
01 Nov 2020
Topic Review
Ionic Liquids in DSSCs
The dye-sensitized solar cells (DSSCs) which are considered as the third-generation solar cells have a huge potential to be commercialized due to their low cost, simplicity in fabrication, and promising photon-to-electrical energy conversion efficiency. Nevertheless, a high cell efficiency can only be achieved when an organic solvent is incorporated into the formulation of the electrolyte, which is prone to evaporation and leakage. As a result, DSSCs become unsuitable for long-run usage due to thermal instability in the electrolyte. The early intention of incorporating ionic liquids (ILs) into the electrolyte was to curb the abovementioned problem and to enable the DSSCs to function as a sustainable energy device. ILs have been incorporated into the electrolyte formulation and the extent of how the ILs can affect the cell efficiency in various electrolyte states is highlighted. This sheds light on the true purpose of introducing ILs into DSSC electrolyte, which is to enhance the ionicity of the electrolyte.
909
26 Sep 2020
Topic Review
Vehicle Design and Technology for Reducing Fuel Consumption
In recent times, the significance of advancing road transportation technologies has notably increased. This is mainly driven by the escalating need for road transportation systems that are not only safe but also environmentally sustainable. Moreover, enhancing fuel efficiency in road vehicles (i.e., automobiles) holds the potential to contribute significantly to the reduction of a country’s economic vulnerability (i.e., improved energy security), by reducing the reliance on energy imports.
909
29 Jan 2024
Topic Review
Homogeneous charge compression ignition (HCCI)
Homogeneous charge compression ignition (HCCI) is considered an advanced combustion method for internal combustion engines that offers simultaneous reductions in oxides of nitrogen (NOx) emissions and increased fuel efficiency. The present study examines the influence of intake air temperature (IAT) and premixed diesel fuel on fuel self-ignition characteristics in a light-duty compression ignition engine. Partial HCCI was achieved by port injection of the diesel fuel through air-assisted injection while sustaining direct diesel fuel injection into the cylinder for initiating combustion. The self-ignition of diesel fuel under such a set-up was studied with variations in premixed ratios (0–0.60) and inlet temperatures (40–100 °C) under a constant 1600 rpm engine speed with 20 Nm load.
908
23 Aug 2021
Topic Review
Sustainable Energy Development
The global COVID-19 pandemic has had strong impacts on national and international freight, construction and tourism industry, supply chains, and has resulted in a rapid decline in the demand for traditional energy sources. In fact, research has outlined that urban areas depend on global supply chains for their day-to-day basic functions, including energy supplies, food and safe access to potable water. The disruption of global supply chains can leave many urban areas in a very vulnerable position, in which their citizens may struggle to obtain their basic supplies, as the COVID-19 crisis has recently shown. Therefore, solutions aiming to enhance local food, water and energy production systems, even in urban environments, have to be pursued. The COVID-19 crisis has also highlighted in the scientific community the problem of people’s exposure to outdoor and indoor pollution, confirmed as a key element for the increase both in the transmission and severity of the contagion, on top of involving health risks on their own. In this context, most nations are going to adopt new preferential policies to stimulate the development of relevant sustainable energy industries, based on the electrification of the systems supplied by renewable energy sources as confirmed by the International Energy Agency (IEA). Thus, while there is ongoing research focusing on a COVID 19 vaccine, there is also a need for researchers to work cooperatively on novel strategies for world economic recovery incorporating renewable energy policy, technology and management. In this framework, the Sustainable Development of Energy, Water and Environment Systems (SDEWES) conference provides a good platform for researchers and other experts to exchange their academic thoughts, promoting the development and improvements on the renewable energy technologies as well as their role in systems and in the transition towards sustainable energy systems. The 14th SDEWES Conference was held in Dubrovnik, Croatia. It brought together around 570 researchers from 55 countries in the field of sustainable development. The present Special Issue of Energies,
907
02 Nov 2020
Topic Review
Bone Marrow
Bone marrow (BM) is a reliable source of multipotent mesenchymal stromal cells (MSCs), which have been successfully used for treating osteonecrosis.
906
31 Jan 2022
Topic Review
The Advanced Micro-Drilling Process
The increased demand for miniature components has drawn the attention of researchers, engineers, and industry users to manufacture precision micro and mesoholes on foils, sheets, and plates made from a variety of engineering materials. Due to the inherent limitations of conventional drilling processes, the modern or advanced drilling processes are being used to fabricate fine and deep precision holes in a wide range of materials. The spark erosion based drilling is one of them. A comprehensive detail on miniature hole fabrication by micro spark erosion machining (µ-SEM) and micro spark erosion drilling (µ-SED) is given.
906
04 Jul 2022
Topic Review
Policy for Solar Photovoltaics in Vietnam
Vietnam becomes the world's third-largest market for photovoltaic solar in 2020 after a series of policy changes for grid-connected solar power by the Vietnamese government.
906
06 Jun 2023
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