Technology Reports of Kansai University (ISSN: 04532198) is a monthly peer-reviewed and open-access international Journal. It was first built in 1959 and officially in 1975 till now by kansai university, japan. The journal covers all sort of engineering topic, mathematics and physics. Technology Reports of Kansai University (TRKU) was closed access journal until 2017. After that TRKU became open access journal. TRKU is a scopus indexed journal and directly run by faculty of engineering, kansai university.
Technology Reports of Kansai University (ISSN: 04532198) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are
in the following fields but not limited to:
This work studies the thermal effect generated by the friction stir welding process through analysis of finite volumes applying remeshing techniques in welded joints of commercially pure aluminum AA1100. The modeling was realized using the physics properties of the welding material and the working tool in function to the temperature generated, considering the process variables, tool rotation speed, tool transverse speed, tool tilt angle and tool geometry. The solution methods were used through multiphysics to couple the behavior of the fluid mechanicals and the structural analysis in a transitory state. As a result, tool-workpiece interface temperature distribution profiles to different positions of tool transverse speed were obtained, showing an excellent approximation linked to the reconstruction of the mesh
The sedimentation in Kahayan River clearly influences the mobility in this river. The record that is carried out in Kahayan River can worsen the condition. Due to the important function of Kahayan River as the transportation facility, so it has to be carried out an effort to maintain the Kahayan river condistion itself. This research intends to build the total sediment transport modeling and it is conducted by using model test due to the prototype of Kahayan River is so long, wide, and depth. This modeling uses 4 variation of discharge such as Q10 = 0.489 l/s, Q23 = 0.728 l/s, Q50 = 0.797 l/s, and Q100 = 0.994 l/s by using river factual slope: 0.0019. The result shows that the 2 equation due to the analysis are close to the Shield amd Einstein equation. Besides it, the new equation that is obtained from the result of dimension analysis and then it is validated by the field data and the result is a new equation for the sediment discharge in Kahayan River is as follow: Q_s=(((V/(D^(1/2) g^(1/2) )) D^(5/2) g^(1/2))/3,6579)^(1/0,2466)
The main objective of this work was to quantify the performance of MFC-CWs performance fueled with actual industrial petroleum refinery wastewater (PRW) using alternatively two different recycled demolition materials as supporting media. These waste materials were crushed ceramic (CC) and crushed glass (CG). These MFC-CWs systems were operated in a batch mode and compared to a MFC-CW with gravel media as a conventional supporting material. The three MFC-CWs systems were planted with phragmites australis. Results revealed no significant difference between the suggested systems in terms of COD removal and electricity generation. Maximum COD removal efficiency of 96%, 95%, 91% and power generation of 27, 21, 20 mW/m2 were achieved in MFC-CW microcosms with gravel, ceramic, and glass media, respectively. Also, the results suggested that bioelectrochemical processes are the dominant mechanism for organics removal in the MFC-CW rather than the biological or phytoremediation processes occur in the conventional constructed wetland. Results of toxicity test demonstrated the potential of the suggested approach for detoxification of the PRW
The goal of our work is the development of modern control laws for a low-pressure mercury-argon discharge lamp (UV-C lamp) powered by a serial multicell converter for water purification. In the previous article, we presented the multicellular converters series: operation, modeling and control. We also exposed the control modulating cyclic reports which was dedicated to the control of the voltages and the flying capacitors, it was intended to ensure the balancing of the voltages across the switches. Current regulation is done by introducing a classical PI-type regulator synthesized by the pole-placement method, which made it possible to have a good setpoint monitoring despite the presence of the perturbation on the arc current and parametric variations on the arc resistance. After having tested the robustness of the PI regulator vis-à-vis the parametric variations of the arc resistance or the arc current, which are inversely proportional and which vary according to the temperature. The goal of our work is the development of a modern control law for a discharge lamp powered by a serial multicell converter. The first control is the regulation by a traditional PI, but this control has not been very robust. For this, it has been replaced by a fuzzy regulator (Mamdani) to improve the performance of our electronic discharge lamp-Ballast system
Interconnecting a PV inverter system with utility line has been widely adopted to process renewable energy and improve power factor. The PV system combined with the function of the active filter system called PV-AF can be useful for the application in the power distribution system. This paper presents a comparative analysis of performances between Series PV-AF and the proposal PV system under the hybrid structure PV-HF. The two configurations are based three level neutral point clamped inverter to keep a power raised without to oversize the switches and to associate structures in series. It has been observed from the simulation results that the performances of PV-HF are betters especially in the current and power quality
