The mutual induction concept serves as the foundation for this method. To generate energy, we employed a D C motor that is mounted on the rotor Shaft. The electromagnetic induction principle of Faraday's law governs how the electricity generating fan operates. The magnets that are positioned around the Cu winding in order to generating power with assembly rotate when the fan is operating. We generated electricity from fan while it was operating with the aid of the D C motor. We can generate electricity more effectively and efficiently by employing this assembly.

This paper outlines linear and nonlinear systems, presenting some key features of each while pointing out the major problems brought by the nonlinearities into control applications. Linear systems exhibit proportional and additive relationships and are comparatively easier to model and control. On the contrary, the nonlinear systems possess complex and unpredictable patterns, thus often forcing their simplification. Linearization, performed via Jacobian-based approximations and feedback linearization, is very important in allowing the application of linear control strategies to be employed for nonlinear systems. The paper presents proportional-integral-derivative (PID) control and Computed torque control (CTC) as the major control methods for manipulation, showing the corresponding design principles and also discusses other control techniques in brief.

With the transformation of the global energy structure to low- carbon, the development of efficient and sustainable clean energy technology has become the key to solve the depletion of fossil energy and environmental problems. Hydrogen production from water electrolysis generates hydrogen and oxygen through the electrochemical decomposition of water molecules, which can convert intermittent renewable energy such as wind and solar energy into a chemical energy carrier with high energy density, and is one of the core technologies to achieve energy storage and carbon neutrality. However, the large-scale application of water electrolysis technology is still limited by the activity, stability and cost of the cathode hydrogen evolution reaction (HER) catalyst. In this paper, the reaction mechanism, material system and optimization strategy of HER catalyst were systematically reviewed, focusing on the structure-activity relationship of platinum-based catalyst, transition metal sulfide and metal-carrier composite catalyst, and the differences in their activity were revealed based on the theory of hydrogen adsorption free energy ( ΔGH), in order to provide references for rational design of high-performance catalysts and industrial promotion of water electrolytic technology.

This article explores the development potential and challenges of new energy vehicles (NEVs) through comprehensive studies and data collection. Focusing on energy advantages, it analyzes the environmental benefits of NEVs, particularly in reducing carbon emissions and enhancing sustainability. The paper also examines the energy consumption of NEVs and evaluates their compatibility with local infrastructure, considering factors such as the adaptation of charging facilities and energy supply networks. Additionally, the article investigates global policies aimed at promoting NEVs in the context of carbon emission reduction. It highlights the varied approaches of different countries and regions in advancing NEVs, emphasizing how these policies impact the adoption and growth of the sector. By reviewing international policies, the article provides a comparative analysis of government incentives, regulatory frameworks, and industry support for NEVs, offering insights into the factors influencing their widespread deployment. This comprehensive overview underscores the importance of tailored policy strategies for overcoming barriers and accelerating the transition to cleaner, more sustainable transportation systems.

This paper introduces a new approach to build a multi-axis force/torque sensor using a low-cost pre-made strain gauge-based load cells available on the market. Multiple load cells are attached to a rigid Stewart platform, which is designed to decouple multi-axis force/torque values into force components, thereby estimating the multi-axis force/torque components using the decoupled force components. In this paper, the design methodology of the proposed multi-axis force/torque sensor including a theoretical approach are described on how to design the sensor platform geometry, and its actual prototype based on the theoretical method. This was fabricated using a rigid platform, load cells, and an electrical circuit for amplifiers. Finally, a set of experiments were carried out to verify the methodology using the prototype through a calibration process, and sensing performances were described in more detail.

The role of a ventilation system is to establish or maintain conditions of temperature, humidity, dust content and gaseous products compatible with a certain degree of comfort, in the presence of various external inputs, respecting the noise level and air speed compatible with this comfort. In order to obtain prescribed (previously fixed) temperature, pressure and humidity conditions in ventilated premises, the air must first be subjected to a complex treatment process, a process that may include heating, cooling, humidification, dehumidification, filtration, etc. Technological processes are accompanied by significant releases of gases, vapors, dusts with toxic effects on the human body, noise, vibrations, radiation (ultrashort, nuclear, laser type, etc.). The quality of air in workplaces has a major influence on the health of workers, and it is important to keep pollutant emissions under control. The main industrial processes that emit noxious substances are: - steel companies, which emit: dusts with a high metal content, iron oxides, silicon dioxide, manganese, phenols, polycyclic organic compounds; - non-ferrous metal companies, which emit dusts, oxides of lead, zinc, arsenic, cadmium, mercury; - chemical companies of inorganic products, release gases containing: sulfur dioxide, hydrogen sulfide, hydrofluoric acid, chlorine, acid vapors, ammonia, solid particles; - chemical companies of organic products, emit: solvents, phenols, mercaptans, pesticides; - pulp and paper companies, emit: dusts, sulfur dioxide, mercaptans, hydrogen sulfide, etc.; - food industry enterprises release solid particles, ammonia, pathogenic germs, etc. into the air.

Tailings slurry storage and management continues to be a significant consideration for the safe and environmentally complaint operation of a coal processing facility. Further, as the scarcity of, and stringent application requirements for, raw water sources increase in this country, it is becoming ever more important to critically account for every litre of water lost from a processing plant. These requirements, among others, have driven the need for development of techniques and technologies to minimise water losses from every stream exiting a coal plant. A major contributor to such water losses arises from the slimes slurry which has traditionally been stored in tailings dams. Typically, significant quantities of water are lost from these facilities due to evaporation and seepage, placing pressure on raw water make-up sources as well as polluting, rivers, dams and ground water. One solution at the forefront of this technological development drive is the incorporation of filtration technologies into the slimes slurry streams. Competent, low-moisture filter cake can then be safely and compliantly stored in dry facilities or, in the case of a filtered froth flotation concentrate, blended and sold as additional tons along with the coarse product. The filtrate water is then directly returned to the processing plant, eliminating water losses to the environment. This paper considers 3 case studies of the successful application of plate and frame filter presses.

TiPt has a higher martensitic transformation above 1200 K, which makes it a good candidate for HTMSAs. However, TiPt exhibits C′ = -32GPa. A new class of Ti-Pt-V systems was predicted using cluster expansion. It was found that the density of the system decreases with the addition of V and the heats of formation was found to be -0.352 eV/atom, suggesting thermodynamical stability. The mechanical behaviour of Ti 2 VPt alloy revealed that it is mechanically stable. The phonon dispersion curves confirmed vibrational stability due to the absence of soft modes. This work suggests that the addition of V stabilises and improves the mechanical characteristics of the Ti-Pt alloys.

The paper presents the efficiency criteria for heat and cooling supply for a so-called efficient district heating and cooling system as defined in Directive 2023/1791 on energy efficiency and amending Regulation (EU) 2023/955. The criteria apply to operators of all existing DH/C systems with total heat and cooling output exceeding 5 MW. In Slovakia, numerous DH systems with total heat output less than 5 MW have been in operation since the 1980s. According to Article 26, paragraph 5 of EU directive, the requirement for so called efficient heating does not apply to operators of these DH systems. So, there is a question whether it is technically and economically suitable to reconstruct heat sources of DH systems with total heat output less than 5 MW. The presented paper analyses a proposed reconstruction of a gas boiler plant with a total heat output of 2.83 MW < 5 MW to meet the criteria of an efficient district heating system.

Conventional flotation circuits struggle to recover valuable ultra-fine coal particles (less than 45μm), leading to significant losses. Conventional technologies typically discard these ultra-fines, sacrificing valuable resources to tailings. Eriez's StackCell® and Flotation Column technologies have demonstrated superior efficiency in the area of ultra-fine coal recovery compared to conventional methods, thanks to their application of wash water over deep froths. When deployed as part of Somerset International's patented Sub325® Fine Coal Recovery System, which captures a very high proportion of ultra-fines to product, total recovery and yield is maximised, thereby also reducing tailings waste. The fine coal recovery system flowsheet offers significant advantages by creating revenue from a waste stream and reducing tailings volumes reporting to tailings storage facilities.