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A valveless piezoelectric pump with novel flow path design of function of rectification to improve energy

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0685-3

Abstract: Existing valveless piezoelectric pumps are mostly based on the flow resistance mechanism to generateAfter verifying its feasibility through the flow field simulation, the proposed tubes were integratedinto a piezo-driven chamber, and a novel valveless piezoelectric pump with the function of rectificationUnlike previous pumps, the reported pump directed the reflux fluid to another flow channel differentThe maximum flow rate reached 6.89 mL/min, and the pumping efficiency was up to 27%.

Keywords： composite tube     valveless piezoelectric pump     rectification     energy efficiency    

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Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical

ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 13-19 doi: 10.1007/s11465-007-0002-1

Abstract: Meanwhile, the theoretical equation of the pump flow rate is established.Finally, a real valveless piezoelectric pump with unsymmetrical ridges is manufactured, and the flowrate of the pump is measured through experiments.theoretical flow rate.In addition, for calculating the theoretical flow rate, the positive and converse flow resistance coefficients

Keywords： unsymmetrical     theoretical flow     theoretical equation     pump flow     converse flow    

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Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 53-59 doi: 10.1007/s11465-009-0006-0

Abstract: Navier-Stokes equations and the standard turbulence model, to simulate the three-dimensional air-water bubbly flowSimulation is then carried out for the pure liquid flow and air-water two-phase flow with the inlet gasvolume fraction being 15% in a multiphase rotodynamic pump impeller and the pump head performance is

Keywords： two-fluid model     multiphase rotodynamic pump     SIMPLEC algorithm     numerical simulation    

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Characteristics of force acting on adjustable axial flow pump blade

WEI Peiru, CHEN Hongxun, LU Wei

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 508-513 doi: 10.1007/s11708-008-0054-x

Abstract: The internal three-dimensional turbulent flow of adjustable axial-flow pump arrangement was simulated

Keywords： three-dimensional     adjustable axial-flow     calculated     FEM     centrifugal    

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Elliptical lobe shape gerotor pump design to minimize wear

Mohammad Reza KARAMOOZ RAVARI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 429-434 doi: 10.1007/s11465-011-0247-6

Abstract: for elliptical lobe shape rotors profile and curvature of them have been derived and then Specific flowAlso in order to have better comparison specific flow has been presented.and show the significant improvement in wear of the rotors with negligible changes in the specific flow

Keywords： gerotor pump     elliptical lobe shape pump     wear rate proportional factor (WRPF)     specific flow    

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Flow-Induced Instabilities in Pump-Turbines in China

Zhigang Zuo,Shuhong Liu

Engineering 2017, Volume 3, Issue 4,   Pages 504-511 doi: 10.1016/J.ENG.2017.04.010

Abstract:

The stability of pump-turbines is of great importance to the operation of pumped storage power (PSPIn order to provide a reference to the engineers and scientists working on pump-turbines, this paperinstabilities and performance characteristics that promote the operational instabilities encountered in pump-turbine

Keywords： Pump-turbines     Flow-induced instability     Pressure fluctuations     S-shaped characteristics     Positive slopes    

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R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 47-54 doi: 10.1007/s11708-009-0080-3

Abstract: The ground-coupled heat pump (GCHP) systems have been identified as one of the best sustainable energy

Keywords： ground source heat pump     ground heat exchanger     HVAC     China    

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Evaluation of the performance of a centralized ground-water heat pump system in cold climate region

Shilei LU,Zhe CAI,Li ZHANG,Yiran LI

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 394-402 doi: 10.1007/s11708-014-0310-1

Abstract: The aim of this study is to evaluate the performance of a centralized open-loop ground-water heat pumpThe analysis of the testing data indicates that the average heat-pump coefficient of performance (COP

Keywords： ground-water heat pump (GWHP)     actual coefficient of performance     heat transfixion    

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Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 414-436 doi: 10.1007/s11708-017-0507-1

Abstract: Absorption heat pump attracts increasing attention due to its advantages in low grade thermal energyIn this paper, three important aspects for absorption heat pump for waste heat reuse are reviewed.In the first part, different absorption heat pump cycles are classified and introduced., alcohol based working pairs, and halogenated hydrocarbon based working pairs, for absorption heat pumpIn the third part, the applications of the absorption heat pump and absorption heat transformer for waste

Keywords： absorption     heat pump     heat transformer     waste heat     working pair    

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design of novel proton-pump inhibitors with reduced adverse effects

Xiaoyi Li, Hong Kang, Wensheng Liu, Sarita Singhal, Na Jiao, Yong Wang, Lixin Zhu, Ruixin Zhu

Frontiers of Medicine 2019, Volume 13, Issue 2,   Pages 277-284 doi: 10.1007/s11684-018-0630-3

Abstract: The development of new proton-pump inhibitors (PPIs) with less adverse effects by lowering the pKa values

Keywords： proton-pump inhibitor     adverse effect     pharmacological mechanism     toxicological mechanism     pKa calculation    

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Efficiency characteristics of piezostack pump for linear actuators

Junwu KAN, Kehong TANG, Chenghui SHAO, Guoren ZHU, Taijiang PENG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 407-414 doi: 10.1007/s11465-009-0049-2

Abstract: A piezostack pump for linear actuators is presented and studied in terms of mechanical energy efficiencyConsidering the deflection of the pump chamber and dynamic response of the piezostack, the stiffness

Keywords： piezostack actuator     piezostack pump     mechanical efficiency     energy conversion efficiency (ECE)    

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Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics

Zongxia JIAO,Tianyi WANG,Liang YAN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 351-362 doi: 10.1007/s11465-016-0407-9

Abstract: It has been widely used in linear pump applications as the source of power and motion.whole, this process offers complete guidance for high power density linear oscillating motors in linear pump

Keywords： linear oscillating motor     linear pump     magnetic field     motor optimization    

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A solar assisted heat pump drying system for grain in-store drying

Haifeng LI, Yanjun DAI, Jianguo DAI, Xibo WANG, Lei WEI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 386-391 doi: 10.1007/s11708-010-0003-3

Abstract: assisted drying process has been developed, which consists of a set including a solar-assisted heat pumpA solar-assisted heat pump drying system has been designed and manufactured for a practical granary,

Keywords： solar energy     heat pump     airflow     in-store drying    

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Performance analysis of an air-source heat pump using an immersed water condenser

Jie JI, Huide FU, Hanfeng HE, Gang PEI,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 234-245 doi: 10.1007/s11708-009-0056-3

Abstract: A distributed model of an air-source heat pump (ASHP) system and its experimental setup using an immersedexperimental background for ASHP system optimization and a valuable reference for a solar air-source heat pump

Keywords： air-source     heat pump     distributed model     immersed water condenser    

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Optimization model analysis of centralized groundwater source heat pump system in heating season

Shilei LU,Yunfang QI,Zhe CAI,Yiran LI

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 343-361 doi: 10.1007/s11708-015-0372-8

Abstract: The ground-water heat-pump system (GWHP) provides a high efficient way for heating and cooling whileand transient heat transfixion was established by calculating the heat transfer simulation software Flowpaper has an important guiding significance to the actual operation of underground water source heat pump

Keywords： optimization model     groundwater source heat pump system     theoretical analysis     example verification     heating    

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Title Author Date Type Operation

A valveless piezoelectric pump with novel flow path design of function of rectification to improve energy

Journal Article

Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical

ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong

Journal Article

Extended two-fluid model applied to analysis of bubbly flow in multiphase rotodynamic pump impeller

Zhiyi YU, Guoyu WANG, Shuliang CAO

Journal Article

Characteristics of force acting on adjustable axial flow pump blade

WEI Peiru, CHEN Hongxun, LU Wei

Journal Article

Elliptical lobe shape gerotor pump design to minimize wear

Mohammad Reza KARAMOOZ RAVARI

Journal Article

Flow-Induced Instabilities in Pump-Turbines in China

Zhigang Zuo,Shuhong Liu

Journal Article

R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Journal Article

Evaluation of the performance of a centralized ground-water heat pump system in cold climate region

Shilei LU,Zhe CAI,Li ZHANG,Yiran LI

Journal Article

Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Journal Article

design of novel proton-pump inhibitors with reduced adverse effects

Xiaoyi Li, Hong Kang, Wensheng Liu, Sarita Singhal, Na Jiao, Yong Wang, Lixin Zhu, Ruixin Zhu

Journal Article

Efficiency characteristics of piezostack pump for linear actuators

Junwu KAN, Kehong TANG, Chenghui SHAO, Guoren ZHU, Taijiang PENG,

Journal Article

Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics

Zongxia JIAO,Tianyi WANG,Liang YAN

Journal Article

A solar assisted heat pump drying system for grain in-store drying

Haifeng LI, Yanjun DAI, Jianguo DAI, Xibo WANG, Lei WEI,

Journal Article

Performance analysis of an air-source heat pump using an immersed water condenser

Jie JI, Huide FU, Hanfeng HE, Gang PEI,

Journal Article

Optimization model analysis of centralized groundwater source heat pump system in heating season

Shilei LU,Yunfang QI,Zhe CAI,Yiran LI

Journal Article