Papers by Keyword: Industrial

Abstract: In the challenging environment of the Negeri Roadstone Malaysia quarry, maintaining accuracy in the weight measurement of raw materials and finished products is paramount. This paper presents an in-depth analysis of an integrated weighing system comprising load cells and ultrasonic sensors, used strategically at the quarry site. By leveraging the precision of strain gauge technology inherent in load cells and the distance-measuring capabilities of ultrasonic sensors, the system aims to offer accurate weight estimations across varying distributions of materials, mainly sand. The load cell yields an average weight of 703.8192g, 701.8220g and 702.4949g which is very close to the actual weight of the sand (700g). Experimental results highlight the sensitivity of ultrasonic measurements to the distribution pattern of sand, emphasising the importance of material consistency for accurate volume-to-weight conversions. Furthermore, integrating the Node-RED platform showcases real-time data visualisation, enhancing the system's usability and data analysis capabilities. Through this study, we underscore the potential and challenges of employing a hybrid weighing system, offering insights for future implementations in similar industrial settings.

Abstract: Early detection of hazardous or flammable gasses/volatiles reduces the potential risks to personnel, such as development of respiratory problems. A simple robust resistive sensor device is presented with a sensing film of poly (styreneco-maleic acid) containing carbon nanotubes as the conductive medium. The response of the sensor was assessed with several volatile solvents and an industrial printer ink. All vapours were detected by increased resistance of the sensor film, and the ink vapour elicited the largest response. A warning system for volatile solvents could be based on this sensor design for use in industrial environments.

Abstract: This paper highlights ongoing efforts to validate performance, reliability and robustness of GE SiC MOSFETs for Aerospace and Industrial applications. After summarizing ruggedness and reliability testing performed on 1.2kV MOSFETs, two application examples are highlighted. The first demonstrates the 1.2kV device performance in a prototype high frequency 75kW Aviation motor drive. The second highlights the experimental demonstration of a 99% efficient 1.0MW solar inverter using 1.7kV MOSFET modules in a two-level topology switching at 8kHz. Both applications illustrate that SiC advantage is not only in improved performance, but also in significant system cost savings through simplifications in topology, controls, cooling and filtering.

Abstract: Set up an industrial economic benefit evaluation index system, including three level indexes, 8 secondary index, using the grey comprehensive evaluation method of industrial economic benefits in east China empirically measure and analysis. By analysis of the eastern provinces of the comprehensive ranking, according to the result of evaluation and comparison, we found out the eastern region economic level is uneven. Then, put forward the proposal to the development of eastern industrial economy.

Abstract: This article researches and discusses the current situation of the modern forest fire helmet. It focuses on the problems and difficulties in the modern forest fire helmet design and analyses them. With the concept of user-friendly design, this article advances the user-friendly design principles in modern forest fire helmet design.

Abstract: New energy vehicles stand for the future development of automobile industry and all countries in the world increased national investment in new energy vehicles. This century, especially since the the Twelfth Five-Year period, China continued to increase supportive strength to new energy vehicles, to obtain better opportunities for development. This paper analyses the present situation of new energy vehicles and the problems should be paid attention to from the enterprise manufacturing technology, government policy and consumer. From the technology, industry and policy, the article investigates the development of new energy vehicles.

Abstract: Titanium and its alloys find wide range of applications in aerospace, marine and automobile industries due to their excellent properties like high strength to weight ratio and good mechanical behaviour. Accordingly, the structural parts made of these alloys are being exposed to different corrosive environments. Therefore, the electrochemical stability of these structural parts needs to be significantly improved for their extended life time and effective functioning. The objective of the present work is to examine the effect of plasma electrolytic surface treatment in improving the corrosion resistance of Ti-6Al-4V in simulated acidic (0.5M H₂SO₄), marine (3.5% NaCl) and sulphur containing industrial (0.5M Na₂SO₄) environments. PEO is a relatively new technique for producing ceramic coatings on light metal alloys by employing higher voltage and current than anodizing. The Ti-6Al-4V was surface treated by plasma electrolytic oxidation (PEO) technique for 12 min under optimized conditions of electrical processing parameters and electrolyte chemistry. The logically selected electrolyte system consisting of 10 g of tri-sodium ortho phosphate (Na₃PO₄.12H₂O), 2 g of sodium meta silicate (Na₂SiO₃.9H₂O) and 2 g of potassium hydroxide (KOH) in 1 L of double distilled water was employed. The decisively optimized electrical parameters were fixed as 75% for the duty cycle, 1500 Hz for the pulse frequency and 0.1 A/cm² for the current density. The phase composition of the resulted coating was analyzed by the X-ray diffraction (XRD) technique. The coating thickness and the elemental composition of the coating were assessed using a scanning electron microscope (SEM) equipped with energy dispersive spectroscopy (EDS). The corrosion characteristics were determined by potentiodynamic polarization and electrochemical impedance spectroscopic (EIS) measurements. The XRD results demonstrated that the resulted coatings consisted of both anatase and rutile phases. The SEM results showed a coating thickness of about 15 µm and a canal like surface morphology with inter-connected open pores over the coating surface. The potentiodynamic polarization test results, in general, showed a minimum of about two orders of magnitude improvement in the corrosion resistance of the treated Ti-6Al-4V compared to that of the untreated in all the three corrosive environments. The EIS test results exhibit comparatively higher AC impedance and higher bode angle over the entire frequency range indicating an improved corrosion resistance of the surface treated Ti-6Al-4V. Thus the plasma electrolytic surface treatment with optimized process parameters, made the Ti-6Al-4V electrochemically stable by significantly improving its corrosion resistance in all the three environmental conditions.

Abstract: In the automatic control system of industrial field, the production process monitoring and control process is dependent on Mutual coordination of various automation instrument, computer and corresponding actuators. The coordination is accurate or not, the key is signal transmission quality among those agencies. The application and selection of isolation device directly affect signal transmission. This paper discusses the application and choose of industrial site isolator from isolation principle, the principle and choose for isolator, commissioning and parameter selection based on practical application.

Abstract: Laboratory batch and column experiments were conducted to investigate the feasibility of using a new class of stabilized zero-valent iron (ZVI) nanoparticles for in situ reductive immobilization of Re (VI) in water and in a sandy loam soil. Column experiments indicated that the stabilized ZVI nanoparticles are highly deliverable in the soil column. The stabilized ZVI nanoparticles may serve as a highly soil-dispersible and effective agent for in situ reductive immobilization of rhenium soils, groundwater, or industrial wastes.

Abstract: A low cost heat-conserving stove that uses palm waste briquette (substitute for fuel wood) has been developed. It has a furnace size of 400mm diameter and a height of 400mm with a 90mm inner cylindrical burner. The heating surface of the stove generated about 966 kilojoules of heat. A natural draught of 6m/s (efflux velocity) was used to determine the chimney size. The stove which was designed and fabricated mostly from 3mm low carbon steel (mild steel) material can accommodate different sizes of briquette for both domestic and industrial cooking. The air inlet has a regulating duct that controls the burning of the briquette. The burning rate of the palm waste briquette using the briquette stove was estimated to be approximately 3.0kg/hr. This value was found to be lower than values obtained when the same quantity of briquette was burnt in the open air. The technology is recommended for adoption by women preparing snacks (such as roasted yam. plantain and corn) in market places and along commercial roads.