Design Optimization Method and Application of High-Efficiency and Variable-Pitch Axial Flow Fan by Lee Chan, Yang Sang Ho, Lee Sang Yeol

“…This paper describes servo motor–driven variable-pitch axial flow fan, and its optimal design method, process and application results for improving the efficiency of the variable-pitch fan. …”
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Influence of Different Climatic Regions on the Energy Efficiency Standard Index of Variable Refrigerant Flow System by Chen Huanxin, Zeng Yuke, Cheng Jianhong, Shao Shuangquan, Zhang Jianqiang, Chen Jin, Zhang Menghua

Subjects: “…variable refrigerant flow system…”
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Research on Variable Circulation Design Method and Internal Flow Characteristic of the Axial Flow Pump by Xuewei Yu, Qili Gan, Zifan Ling, Jiahui Gong, Jiajia Tang, Lijian Shi

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Control of Electric Drives in the Best Efficiency Region of Pumping System by Bakman Ilja

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TECHNICAL PERFORMANCE ESTIMATION METHOD FOR GAS TURBINES WITH VARIABLE FLOW PATH GEOMETRY by Yu. M. Brodov, O. V. Komarov, V. L. Blinov, V. A. Sedunin, A. V. Skorohodov, E. P. Sozonov

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Optimizing Energy Efficiency and Sustainability in Winter Climate Control: Innovative Use of Variable Refrigerant Flow (VRF) Systems in University Buildings by Yolanda Arroyo Gómez, Julio F. San José-Alonso, Luis J. San José-Gallego, Javier M. Rey-Hernández, Ascensión Sanz-Tejedor, Francisco J. Rey-Martínez

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Evaluating the efficiency of a parcel locker network: a case study of variable demand and storage duration in Pardubice city by Stefan Jovčić, Libor Bauer

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Efficient continuous-flow separation and purification processes of 5-hydroxymethylfurfural by Tiprawee Tongtummachat, Kritsanalak Thongkan, Watsamon Chuphueak, Attasak Jaree, Nattee Akkarawatkhoosith

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Study of High Efficiency Flow Regulation of VIGV in Centrifugal Compressor by Chunjun Ji, Qi Sun, Zhaoyang Fan, Yawei Gao, Baode Zhao

“…Variable inlet guide vane (VIGV) is used to control the mass flow and generate prewhirl in centrifugal compressors. …”
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Energy efficiency and length modification of stilling basins with variable Baffle and chute block designs: A case study of the Fewa hydroelectric project by Dahal Vishan, Kunwar Subash, Regmi Ram Krishna, Neupane Shrawan

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Thrust-efficiency limits of a swimming tail with variable chordwise flexural rigidity by Hossam Alqaleiby, Muhammad R. Hajj

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Efficiency problems of high-voltage variable frequency drives of the mcp of npp with wwer by V. A. Khrustalev, D. O. Bashlykov, M. V. Garievsky

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Experimental Results in a Variable-Pitch Wells Rotor by Fabio Licheri, Tiziano Ghisu, Francesco Cambuli, Pierpaolo Puddu, Mario Carta

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Effects of variable thermo-physical characteristics on MHD ternary hybrid second-grade nanofluid in rotating Jeffery-Hamel flow by Ibrahim Mahariq, Rania Saadeh, Farhan Lafta Rashid, Ahmad Qazza, Mohamed Kezzar, Hamiden Abd El-Wahed Khalifa, Mohamed Rafik Sari

“…The results show that there is a big boost in thermal efficiency, especially when different flow rates are used.…”
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High-efficiency filtration: Smart designs for particle trapping by Bahador Abolpour, Ramtin Hekmatkhah, Rahim Shamsoddini

“…Trapping solid particles within fluid flows is a critical concern for maintaining the health of living organisms, enhancing the efficiency of industrial equipment, and more. …”
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Importance of Variable Turbine Efficiency in Run‐Of‐River Hydropower Design Under Deep Uncertainty by Veysel Yildiz, Solomon Brown, Charles Rougé

“…This paper is the first to integrate variable‐efficiency turbines into a hydropower plant design framework that accounts for design optimization as well as deep uncertainty in climatic and socio‐economic variables. …”
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High-efficiency Axial Flow Fan Design by Combining Through-flow Modeling, Optimization Algorithm and Computational Fluid Dynamics Simulation by C. Lee, S. W. Kim, H. T. Byun, S. H. Yang

“…In this study, a high-efficiency axial fan design method and process are proposed by integrating the controlled blading design (CBD) method for the spanwise design of blade angles, the through-flow analysis method incorporating three-dimensional flow effects for performance prediction of the designed fan, and an optimization algorithm suitable for multi-variable problems. …”
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Dynamics of traffic flow in lattice model by GUO Wei-ping, WANG Xiao-fan, LI Xiang

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Efficient and variable viscosity fracturing fluid of deep coal rock gas and popularization in ultimate volume fracturing by Bo LIN, Shuai CHEN, Xiangyang YAN, Mengqi CHEN, Liangjun DU, Heng CHEN, Hongsheng LU, Shuai SUN

“…By taking the advantage of SFY-2, a efficient and variable viscosity fracturing fluid is constructed to fit the design idea of coal rock gas Ultimate volume Fracturing, the variable viscosity control scheme is formulated and the construction technology is optimizated to achieve the goal of “Breaking” the coal rock sufficiently, creating complex sewing nets, filling sands fully and supporting effective. …”
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Experimental Characterization of a Commercial Photovoltaic Thermal (PVT) Hybrid Panel Under Variable Hydrodynamic and Thermal Conditions by Jorge Aguilar, Wilson Pavon, Zahir Dehouche

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