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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 efficiency(MEE), energy conversion efficiency (ECE) and design method.MEE is defined as the ratio of the output mechanical energy to that converted from input electrical energy, and ECE is the ratio of output mechanical energy to input electrical energy.The analysis results show that both MEE and ECE decrease with the increase of stiffness of the chamber

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

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A thermoelectric generator and water-cooling assisted high conversion efficiency polycrystalline silicon

Zekun LIU, Shuang YUAN, Yi YUAN, Guojian LI, Qiang WANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 358-366 doi: 10.1007/s11708-020-0712-1

Abstract: Solar energy has been increasing its share in the global energy structure.However, the thermal radiation brought by sunlight will attenuate the efficiency of solar cells.To reduce the temperature of the photovoltaic (PV) cell and improve the utilization efficiency of solarenergy, a hybrid system composed of the PV cell, a thermoelectric generator (TEG), and a water-cooledThe WCP cannot only cool the PV cell, but also effectively generate additional electric energy with the

Keywords： photovoltaic (PV)     thermoelectric generator     conversion efficiency     hybrid energy systems     water-cooled plate    

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Hydrogel photocatalysts for efficient energy conversion and environmental treatment

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 577-595 doi: 10.1007/s11708-021-0756-x

Abstract: owing to their excellent properties and potential for simultaneously addressing challenges related to energyMoreover, current applications of hydrogel photocatalysts in energy conversion and environmental remediation

Keywords： hydrogel     photocatalysts     energy conversion     environmental treatment    

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A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 297-310 doi: 10.1007/s11708-015-0370-x

Abstract: Harvesting the energy from ocean waves is one of the greatest attractions for energy engineers and scientistsstage of the wave energy converter among other stages such as power take off (PTO) and electrical energyconversion.If the recent development of these front end energy conversion is well known then developing wave energyThe aim of this review is to provide information on front end energy conversion of a point absorber and

Keywords： wave energy converter     point absorbers     power take off (PTO)     front end energy conversion    

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Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 270-287 doi: 10.1007/s11708-010-0126-6

Abstract: The common forms of energy are mechanical energy, chemical energy, internal energy, electrical energyThe fluids in nature serve as the most common carriers and media in the energy conversion process.and conversion issue in micro/nano scale has also been introduced in research laboratories worldwideIn this paper, a series of micro/nanofluid-enabled energy conversion devices is reviewed based on theconversion and fluid in the micro/nano scale.

Keywords： micro/nanofluid     different energy forms     energy conversion     medium role    

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Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 184-192 doi: 10.1007/s11708-012-0185-y

Abstract: An additional reference power output is used which helps the DFIG to release kinetic energy stored in

Keywords： doubly fed induction generator (DFIG)     load frequency control     inertial control     wind energy conversion    

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Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integratingenergy efficiency and recovery

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1549-0

Abstract:

• Framework of indicators was established based on energy efficiency

Keywords： Wastewater treatment plants     Energy neutrality potential     Energy efficiency     Energy recovery     Evaluation    

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Clean energy technology: materials, processes and devices for electrochemical energy conversion and storage

Hong YANG, Junliang ZHANG, Baolian YI

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 233-235 doi: 10.1007/s11708-017-0501-7

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Photothermal materials for efficient solar powered steam generation

Fenghua Liu, Yijian Lai, Binyuan Zhao, Robert Bradley, Weiping Wu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 636-653 doi: 10.1007/s11705-019-1824-1

Abstract: Solar powered steam generation is an emerging area in the field of energy harvest and sustainable technologiesThe nano-structured photothermal materials are able to harvest energy from the full solar spectrum andconvert it to heat with high efficiency.as solutions for high performance devices, a few creatively coupled other physical fields with solar energytheir applications in seawater desalination and fresh water production from waste water with free solar energy

Keywords： solar stream generation     plasmonics     porous carbon     photothermal materials     solar energy conversion efficiency    

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A fully solid-state cold thermal energy storage device for car seats using shape-memory alloys

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 504-515 doi: 10.1007/s11708-022-0855-3

Abstract: Thermal energy storage has been a pivotal technology to fill the gap between energy demands and energystorage properties such as high thermal conductivity (compared with ice and paraffin) and volumetric energydensity, making them excellent thermal energy storage materials.Considering these characteristics, the design of the shape-memory alloy based the cold thermal energystorage efficiency of the device is 66%.

Keywords： shape-memory alloy (SMA)     elastocaloric effect (eCE)     cooled seat     cold thermal energy storage    

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Regional characteristics of industrial energy efficiency in China: application of stochastic frontier

Tao HUANG,Akio ONISHI,Feng SHI,Masafumi MORISUGI,Mjo Lwin CHERRY

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 506-521 doi: 10.1007/s11783-014-0656-y

Abstract: This paper analyzed regional industrial energy efficiency in China with Total-Factor Energy EfficiencyHowever, it is found that industrial energy efficiency of all regions increased from 1998 to 2006.Compared with the conventional energy efficiency, the inverse of energy intensity, which is defined asthe ratio of actual output to energy input, is regarded as Single-Factor Energy Efficiency (SFEE) indexHowever, increasing of heavy industry will lead to worse industrial energy efficiency.

Keywords： industrial energy efficiency     stochastic frontier analysis     total-factor energy efficiency     single factorenergy efficiency    

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A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

Frontiers of Engineering Management 2014, Volume 1, Issue 4,   Pages 341-347 doi: 10.15302/J-FEM-2014060

Abstract: The healthy and stable development of energy efficiencies in existing buildings cannot be separated fromcreates an evaluation index system and a grey comprehensive evaluation model for policy effectiveness for energyefficiency in existing buildings using three dimensions: 1) the effect of the policy itself; 2) the

Keywords： grey comprehensive evaluation     existing buildings     energy efficiency     policies effectiveness    

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Achieving energy efficiency in government buildings through mandatory policy and program enforcement

Patrick X.W. ZOU, Morshed ALAM, Van Manh PHUNG, Dipika WAGLE, Rodney STEWART, Edoardo BERTONE, Oz SAHIN, Chris BUNTINE

Frontiers of Engineering Management 2017, Volume 4, Issue 1,   Pages 92-103 doi: 10.15302/J-FEM-2017101

Abstract: was put in practice and are consequently energy inefficient to a large degree.other sectors (e.g. commercial) to conduct building retrofits for energy savings.Recognising these benefits, several state governments in Australia have introduced building energy efficiencyThis paper reviewed the energy efficiency policies/programs in five States in Australia: Victoria, Newprogram are 1) having a properly enforced energy efficiency mandate with clear energy saving targets,

Keywords： building energy retrofit     policy     energy efficiency     energy performance contract     energy auditing    

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Quantification of energy related industrial eco-efficiency of China

Jiansu MAO, Yanchun DU, Linyu XU, Yong ZENG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 585-596 doi: 10.1007/s11783-010-0289-8

Abstract: Improving eco-efficiency is propitious for saving resources and reducing emissions, and has become aWe define two energy-related eco-efficiencies: energy efficiency (ENE) and greenhouse gas (GHG) emission-relatedeco-efficiency (GEE) using energy consumption and the associated GHG emissions as the environmentalconsumption, and GHG emissions, and estimate their energy-related eco-efficiencies.Finally, we discuss the possibility of eco-efficiency improvement through a comparison with other countries

Keywords： eco-efficiency     greenhouse gas (GHG)     global warming potential (GWP)     industrial sectors     energy saving    

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via feedback linearization and Lyapunov theory for permanent magnet synchronous generator-based wind energyconversion system

Ridha CHEIKH, Arezki MENACER, L. CHRIFI-ALAOUI, Said DRID

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 180-191 doi: 10.1007/s11708-018-0537-3

Abstract: the method for the nonlinear control design of a permanent magnet synchronous generator based-wind energyconversion system (WECS) is proposed in order to obtain robustness against disturbances and harvest

Keywords： permanent magnet synchronous generator     wind energy conversion system     stochastic     differential geometric    

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Title Author Date Type Operation

Efficiency characteristics of piezostack pump for linear actuators

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

Journal Article

A thermoelectric generator and water-cooling assisted high conversion efficiency polycrystalline silicon

Zekun LIU, Shuang YUAN, Yi YUAN, Guojian LI, Qiang WANG

Journal Article

Hydrogel photocatalysts for efficient energy conversion and environmental treatment

Journal Article

A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

Journal Article

Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Journal Article

Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integratingenergy efficiency and recovery

Journal Article

Clean energy technology: materials, processes and devices for electrochemical energy conversion and storage

Hong YANG, Junliang ZHANG, Baolian YI

Journal Article

Photothermal materials for efficient solar powered steam generation

Fenghua Liu, Yijian Lai, Binyuan Zhao, Robert Bradley, Weiping Wu

Journal Article

A fully solid-state cold thermal energy storage device for car seats using shape-memory alloys

Journal Article

Regional characteristics of industrial energy efficiency in China: application of stochastic frontier

Tao HUANG,Akio ONISHI,Feng SHI,Masafumi MORISUGI,Mjo Lwin CHERRY

Journal Article

A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

Journal Article

Achieving energy efficiency in government buildings through mandatory policy and program enforcement

Patrick X.W. ZOU, Morshed ALAM, Van Manh PHUNG, Dipika WAGLE, Rodney STEWART, Edoardo BERTONE, Oz SAHIN, Chris BUNTINE

Journal Article

Quantification of energy related industrial eco-efficiency of China

Jiansu MAO, Yanchun DU, Linyu XU, Yong ZENG

Journal Article

via feedback linearization and Lyapunov theory for permanent magnet synchronous generator-based wind energyconversion system

Ridha CHEIKH, Arezki MENACER, L. CHRIFI-ALAOUI, Said DRID

Journal Article