Numerical Study on the Influence of Length-Diameter Ratio on the Performance of Dynamic Pressure Oil-Air Separator by Xiaobin Zhang, Xiaofeng Zhang, Delin Gu, Lei Lang, Na Gao

“…The flow field structure, velocity, gas volume distribution, separation efficiency, and gas and liquid holdup rate in the separator under different operating conditions are analyzed. Combined with the analysis results of the cylinder diameter and the cylinder length, the influence law of length-diameter ratio on separation efficiency is summarized. …”
Get full text

Adaptive hybrid virtual inertia controller for PMSG-based wind turbine based on fuzzy logic control by Mohamed Hosny, Mostafa I. Marei, Ahmed M.I. Mohamad

“…However, conventional virtual inertia controllers may not satisfy the performance requirements in terms of frequency nadir and rate of change of frequency (ROCOF) over a wide range of microgrid operating conditions. This paper proposes a hybrid adaptive virtual inertia control strategy based on Fuzzy logic. …”
Get full text

Optimal Design of Inlet Passage for Waterjet Propulsion System Based on Flow and Geometric Parameters by Weixuan Jiao, Li Cheng, Di Zhang, Bowen Zhang, Yeping Su, Chuan Wang

“…The geometric parameters of the best optimization case are as follows: the inflow dip angle α is 35°, the length L is 6.38D0, and the upper lip angle is 4°. The optimal operating conditions are the conditions of IVR 0.69–0.87.…”
Get full text

A Defect Detection Method for the Surface of Metal Materials Based on an Adaptive Ultrasound Pulse Excitation Device and Infrared Thermal Imaging Technology by Yibo Ai, Yingjie Zhang, Xingzhao Cao, Weidong Zhang

“…It can be used in many aspects such as crack detection in mechanical structures or complex equipment operating conditions and industrial production processes.…”
Get full text

Laboratory wastewater treatment: Study case of Environmental Engineering Department ITS by Dyah Prasetyati Herrani, Nurhayati Ervin

“…This study uses a coagulation-flocculation process to determine the proper operational condition for laboratory wastewater treatment in the Environmental Engineering Department of Institut Teknologi Sepuluh Nopember (ITS). …”
Get full text

Study on Hydraulic Characteristic of Unsteady Flow at Huangchigou Water Distribution Hub by Observing Instantaneous Water Level Based on Single-Camera and Fixed-Scale Compensation... by Weihua Ding, Lin Zhu, Hu Li, Bin Hou, Fan Yang, Xinhong Wang

“…The unsteady-flow test of the hydraulic model in the Southern Main Tunnel of the Huangchigou Water Distribution Hub was carried out under two operating conditions when the model flow is 0.0246 m3/s. …”
Get full text

Performance evaluation of an optimized simplified nonlinear active disturbance rejection controller for rotor current control of DFIG-based wind energy system by Ahmed Sobhy, Medhat Hegazy Elfar, Ahmed Refaat, Mahmoud Fawzi

“…The SNADR controller's performance is evaluated against traditional PI and linear active disturbance rejection (LADR) controllers through MATLAB simulations under different operating conditions. The PSO-optimized SNADR controller demonstrates several key advantages such as superior accuracy in tracking rotor current set points under constant wind speeds, robust performance despite wind speed fluctuations, and enhanced resilience against parameter uncertainties by compensating for system nonlinearities. …”
Get full text

Selection of the Key Segment Position for Trapezoidal Tapered Rings and Calculation of the Range of Jack Stroke Differences with a Predetermined Key Segment Position by Wencui Zhang, Jian Zhang, Jingru Yan, Yaohong Zhu

“…To calculate all possible key segment positions other than that corresponding to the straight joint configuration, the shield tail gap that remains after segment assembly and the jack stroke difference corresponding to the advancement of the segmental lining and lining trend were computed; then, values and importance coefficients were assigned to these factors according to current operating conditions. To ensure that the segmental lining can be assembled successfully with the calculated key position, we established a model to calculate the change in the shield tail gap before and after shield machine advancement based on the spatial relationships of the shield machine, the currently installed segmental rings, and the segment to be installed. …”
Get full text

Optimization of the heat transfer efficiency of a ground source heat pump heating system via FLUENT numerical simulation with fluid–solid coupling by Wei Wei

“…By using FLUENT software for fluid–solid coupling simulations, we evaluated the system performance under different operating conditions, covering both the winter heating and summer cooling modes. …”
Get full text

Design and Implementation of Multifunction Relay Based on Microcontroller by Ali Abdulsattar Hameed, Ahmed Jasim Sultan, Mehdi F. Booneya

“…The experiential results show that the proposed multi-function relay is accurate, fast response, reliable, selective, good performance, low cost, and sensitivity when used to protect the power system equipment under different operating conditions. …”
Get full text

A system of analysis and prediction of the loss of forging tool material applying artificial neural networks by Hawryluk M., Mrzyglod B.

“…The data used in the learning process come from extensive comprehensive performance tests of forging tools operating under extreme operating conditions (cyclic mechanical and thermal loads). …”
Get full text

Physics Features of TRU-Fueled VHTRs by Tom G. Lewis, Pavel V. Tsvetkov

“…A 3D temperature distribution was developed based on conceivable operation conditions of the 600 MWth VHTR design. Results of extensive criticality and depletion calculations with varying fuel loadings showed that VHTRs are capable for autonomous operation and HLW waste reduction when loaded with TRU fuel.…”
Get full text

Modeling the Kinetics of Potassium Diffusion in Estima Potato under Different Leaching Conditions by David Adu-Poku, Selina A. Saah, Jacob K. Agbenorhevi

“…The kinetic parameters showed a change in slope or discontinuity in the gelatinization temperature range as a function of temperature, an indication of a change in the diffusional matrix. The optimum operating conditions were 80°C preheating and leaching at temperatures up to 50°C. …”
Get full text

Adsorption Behaviors of Cobalt on the Graphite and SiC Surface: A First-Principles Study by Wenyi Wang, Chuan Li, Jianzhu Cao, Chao Fang

“…These results show that SiC layer in fuel element could obstruct the diffusion of Co effectively in normal and accidental operation conditions, but the graphite may become a carrier of Co radioactivity nuclide in the primary circuit of HTR-PM.…”
Get full text

DMA Based Physical Water Loss Management and Infrastructure Leakage Index Analysis in Asian Side of Istanbul by Mehmet Melih Koşucu

“…Managing these losses is critical to not only improve the operating conditions of infrastructure, but also to deliver economic, environmental and societal benefits. …”
Get full text

Thermal Analysis of Direct Liquid-Immersed Solar Receiver for High Concentrating Photovoltaic System by Xinyue Han, Qian Wang, Jun Zheng, Jian Qu

“…It is shown that the system electrical conversion efficiency is very high for a wide range of operating conditions. The three operating parameters have a major effect on the operating temperature of the triple-junction CPV cells and, by extension, system output power. …”
Get full text

Optical Estimation on Pollution Level of Respirable Dust Based on Infrared Transmitting Behavior in Coalmine Fully Mechanized Working Face by Wen-Zheng Wang, Yan-Ming Wang, Guo-Qing Shi

“…Combined with the simulated spatial distribution of airborne dust, the spectral transmission characteristics of coal dust within wavelengths of 2.5 to 25 μm under different operating conditions were obtained. The simulation results show that the transmittance and aerosol optical depth (AOD) of coal dust are closely linked and obviously influenced by the variation of dust generation source (intensity of dust release, position of coal cutting, and the wetting of the coal seam) and airflow field (wind speed and direction of ventilation). …”
Get full text

Predicting the Onset of Cavitation in Automotive Torque Converters—Part I: Designs with Geometric Similitude by D. L. Robinette, J. M. Schweitzer, D. G. Maddock, C. L. Anderson, J. R. Blough, M. A. Johnson

“…Torque converter operating thresholds for cavitation were determined experimentally with a dynamometer test cell at the stall operating condition using nearfield acoustical measurements. …”
Get full text

Efikasnost rada mobilne šumske žičare Konrad Mounty 4000 pri transportu oblog drveta u sastojinama bukve by Danilović Milorad, Antonić Slavica, Stojnić Dušan, Babić Violeta, Gojković Slaven

“…The effects of the operation of the mobile cable yarder differed depending on the operating conditions, the length of the cable route, the lateral distance of attraction, the average volume of the tour, the construction method. …”
Get full text

CO₂/CH₄ and CO₂/CO Selective Pebax-1657 Based Composite Hollow Fiber Membranes Prepared by a Novel Dip-Coating Technique by Dionysios S. Karousos, George V. Theodorakopoulos, Francesco Chiesa, Stéphan Barbe, Mirtat Bouroushian, Evangelos P. Favvas

“…Remarkable CO₂/CH₄ selectivities of up to 110 and CO₂/CO selectivities of up to 48 were achieved, demonstrating the robustness and effectiveness of these composite HF membranes, suggesting their suitability for high-performance gas separation processes under varying operational conditions. Overall, this study introduces a novel approach for scaling up the fabrication of HF membranes and provides valuable insights into their application in CO₂ separation technologies, offering the potential for advancements in areas such as natural gas processing and carbon capture from CO-containing streams.…”
Get full text