Chengming Zhao

Hydraulic performance and design optimization of a multistage centrifugal pump for solar ejector refrigeration

Huifan Zheng, Jiabin Wang, Guoji Tian, Linlin Li et autres

To meet the low-flow and high-pressure-difference requirements of solar ejector refrigeration systems, this study investigates the hydraulic performance and design optimization of a multistage centrifugal pump for R245fa. A closed-loop experimental system was established, and a combined experimental–numerical approach was used to …

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Experimental evaluation of temperature rise pump-delivered refrigerant in a solar ejector refrigeration system

Chengming Zhao, Jiabin Wang, Wenzhe Jia, Xiaowei Fan et autres

To address the issue of temperature rise induced by refrigerant pump operation in solar ejector refrigeration systems, this study employs a multistage centrifugal pump. Through a combination of theoretical analysis and experimental investigation, using R142b as the working fluid, a test platform …

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Experimental Analysis and Temperature Rise Modeling of Multistage Centrifugal Pumps for Solar Ejector Refrigeration Systems

Chengming Zhao, Jiabin Wang, Xiaowei Fan, Huifan Zheng

This study presents an integrated experimental–modeling investigation of the thermal behavior of a multistage centrifugal refrigerant pump in solar ejector refrigeration systems (SERS). A temperature-rise prediction model is formulated strictly from energy conservation with viscous dissipation and validated on a closed-loop test …

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Experimental study on the operating characteristics of refrigerant pumps for solar ejector refrigeration systems

Chengming Zhao, Huifan Zheng, Xiaowei Fan

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Leaf patterning of Clivia miniata var. variegata is associated with differential DNA methylation

Qinmei Wang, Lı Wang, Yongbin Zhou, Jianguo Cui et autres

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Surface modification and fluorescent properties of Mn2+-doped and undoped ZnS nanoparticles

Liping Wang, Xin Yuan, Chengming Zhao

ZnS nanoparticles and Mn2+-doped ZnS nanoparticles were prepared by a reverse micelle reaction system. In addition, ZnS and Mn2+-doped ZnS nanoparticles were modified with poly(vinyl alcohol) (PVA) and 1-dodecanethiol (C12H25SH). The average particle size of the ZnS sample is determined around 2.3 …

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Electrochemical Stability of Ionic Liquids for Vanadium Redox Flow Battery by Density Functional Theory

Chun Chen Yang, Xiaofeng Xie, Chengming Zhao, Zongqiang Mao

Abstract not Available.

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Influence of Metallic Ions on the Electrochemical Activity of Electrodes Based on Pourbaix Diagrams for Vanadium Redox Flow Battery

Chengming Zhao, Xiaofeng Xie, Jinhai Wang, Wenping Wang et autres

Abstract not Available.

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Effects of 2-Hydroxypropyl Acrylate on Electro-Optical Properties of Polymer-Dispersed Liquid Crystal Films and Elasticity of Polymer Network

Liping Wang, Hailian Yang, Chengming Zhao, Lipei Zhang et autres

Polymer-dispersed liquid crystal (PDLC) films were fabricated between two indium tin oxide (ITO) film substrates by means of polymerization-induced phase separation, and the electro-optical properties of the PDLC films were investigated. For the preparation of one PDLC film, 1,4-butanediol diacrylate (BDDA), butyl …

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Optical properties and simultaneous synthesis of ZnS and ZnO nanoparticles via one reverse micellar system

Liping Wang, Chengming Zhao, Fanguo Meng, S. W. Huang et autres

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