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Study on Unstable Characteristics of Centrifugal Pump under Different Cavitation Stages; 不同空化阶段离心泵不稳定特性研究
Authors: DONG Liang, SHANG Huanhuan, ZHAO Yuqi et al.
Institution:Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Keywords:centrifugal pump, cavitation development stage, cavitation bubble distribution, pressure pulsation, radial force
Volume 28, Issue 4: 608-620, 2019 | PDF
Published: July 5, 2019
Abstract: In order to reveal the regularity of unsteady flow of centrifugal pump under different cavitation stages, a visual closed test-bed is built to collect signals such as the distribution of cavitation...
Performance Analysis of a Multistage Centrifugal Pump Used in an Organic Rankine Cycle (ORC) System under Various Condensation Conditions; 变冷凝工况下有机朗肯循环系统中多级离心泵运行性能分析
Authors: YANG Yuxin1,2,3, ZHANG Hongguang1,2*, TIAN Guohong3* et al.
Institution:College of Environmental and Energy Engineering, MOE (Ministry of Education) Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Beijing Key Laboratory of Heat Transfer and Energy Conversion, Beijing University of Technology, Beijing 100124, China
Keywords:waste heat recovery, organic Rankine cycle, multistage centrifugal pump, operating characteristics, various condensation conditions, back work ratio (BWR)
Volume 28, Issue 4: 621-643, 2019 | PDF
Published: July 5, 2019
Abstract: In an organic Rankine cycle (ORC) system, the working fluid pump plays an important role in the system performance. This paper focused on the operating characteristics of a multistage centrifugal p...
Development of a New-Type Multiple-Source Heat Pump with Two-Stage Compression;新型太阳能-土壤复合热源两级压缩热泵系统研究
Authors: ZHONG Xiaohui*,, YANG Hailong, YANG Ke1 et al.
Institution:Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
Keywords:multiple-source, heat pump, two-stage compression, solar collector, simulation
Volume 28, Issue 4: 635-642, 2019 | PDF
Published: July 5, 2019
Abstract: A new-type multiple-source heat pump cycle with two-stage compression was established on the basis of the problems of similarly existing heat pumps. The equivalent temperature levels of typical eva...