检索结果-南通市图书馆

salinity gradient energy: Current State and New Trends

在线全文

学校读者我要写书评

暂无评论

Engineering 2015年第2期1卷 164-166页

作者： Olivier Schaetzle Cees J.N.Buisman Wetsus European Center of Excellence for Sustainable Water Technology Sub-Department of Environmental Technology Wagening University

In this article we give an overview of the state of the art of salinity gradient technologies. We first introduce the concept of salinity gradient energy, before describing the current state of development of the most advanced of these technologies. We conclude with the new trends in the young field of salinity gradient technologies.

关键词： salinity gradient energy pressure-retarded osmosis reverses electrodialysis

Maximum power and corresponding efficiency of an irreversible blue heat engine for harnessing waste heat and salinity gradient energy

在线全文

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2022年第3期65卷 646-656页

作者： LIN Jian XIE Shan JIANG ChenXing SUN YiFei CHEN JinCan ZHAO YingRu College of energy Xiamen UniversityXiamen 361002China Department of Physics Xiamen UniversityXiamen 361002China

In this study,a novel irreversible cyclic model of a capacitive mixing blue heat engine mainly consisting of super capacitors,charging and discharging circuits,a heat source,as well as two water sources with given salt concentrations is established for harvesting salinity gradient energy and waste ***,the effects of the charging voltage and ratio of the minimum to maximum surface electric charge density on the thermodynamic efficiency and power output of the cycle are *** maximum power output of the cycle is *** optimized ranges of efficiency and power output as well as the temperatures of two isothermal processes are *** is established that during the isoelectric quantity process,there is not only an increase in thermal voltage owing to the temperature difference,but also an increase in concentration voltage owing to the salinity ***,the blue heat engine can obtain higher energy conversion efficiency than a conventional heat *** the temperature ratio of the heat source to the heat sink is 1.233,the maximum efficiency can reach approximately36%.The results obtained can promote the application of capacitive mixing technology in real life,reducing the consumption of fossil fuels.

关键词： blue heat engine capacitance mixing salinity gradient energy thermodynamic analysis efficiency at maximum power output

Temperature difference-enhanced salinity gradient energy conversion enabled by thermostable hydrogel membrane with anti-swelling property

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第8期16卷 11288-11295页

作者： Zhehua Zhang Teng Zhou Xiang-Yu Kong Yadong Wu Weiwen Xin Yanglansen Cui Linsen Yang Tingyang Li Xin Li Qingchen Wang Weipeng Chen Lei Jiang Liping Wen Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100049China School of Future Technology University of Chinese Academy of SciencesBeijing 100049PChina College of Mechanical and Electrical Engineering Hainan UniversityHaikou 570228China Binzhou Institute of Technology Binzhou 256600China

Coupling low-grade heat(LGH)with salinity gradient is an effective approach to increase the efficiency of the nanofluidic-membrane-based power ***,it is a challenge to fabricate membranes with high charge density that ensures ion permselectivity,while maintaining chemical and mechanical stability in this composite ***,we develop a bis[2-(methacryloyloxy)ethyl]phosphate(BMAP)hydrogel membrane with good thermal stability and anti-swelling property through self-crosslinking of the selected *** taking advantage of negative space charge and three-dimensional(3D)interconnected nanochannels,salinity gradient energy conversion efficiency is substantially enhanced by temperature *** and experimental results verify that LGH can largely weaken the concentration polarization,promoting transmembrane ion *** a result,such a hydrogel membrane delivers high-performance energy conversion with a power density of 11.53 W·m^(−2)under a negative temperature difference(NTD),showing a 193%increase compared with that without NTD.

关键词： ion transport temperature difference-enhanced salinity gradient energy self-crosslinking hydrogel membranes space charge

Marine renewable energy in China: Current status and perspectives

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Water Science and Engineering 2014年第3期7卷 288-305页

作者： Yong-liang ZHANG Zheng LIN Qiu-lin LIU State Key Laboratory of Hydro-Science and Engineering Tsinghua University

Based on a general review of marine renewable energy in China, an assessment of the development status and amount of various marine renewable energy resources, including tidal energy, tidal current energy, wave energy, ocean thermal energy, and salinity gradient energy in China＇s coastal seas, such as the Bohai Sea, the Yellow Sea, the East China Sea, and the South China Sea, is presented. We have found that these kinds of marine renewable energy resources will play an important role in meeting China＇s future energy needs. Additionally, considering the uneven distribution of China＇s marine renewable energy and the influences of its exploitation on the environment, we have suggested several sites with great potential for each kind of marine energy. Furthermore, perspectives on and challenges related with marine renewable energy in China are addressed.

关键词： renewable energy tidal energy tidal current energy wave energy ocean thermalenergy salinity gradient energy

Development and Practical Applications of Blue Light-Emitting Diodes

在线全文

学校读者我要写书评

暂无评论

Engineering 2015年第2期1卷 167-168页

作者： Hideaki Koizumi Hitachi Ltd. Engineering Academy of Japan(EAJ)

The practical application of semiconductor-based high-efficiency white-light sources, also known as light-emitting diodes, or LEDs, is a recent development of Japanese engineering. This development could be a game-changer for lighting worldwide, given that current power consumption for lighting accounts for 16% of the total electricity consumption in Japan.

关键词： salinity gradient energy pressure-retarded osmosis reverses electrodialysis

salinity exchange between seawater/brackish water and domestic wastewater through electrodialysis for potable water

在线全文

学校读者我要写书评

暂无评论

Frontiers of Environmental Science & Engineering 2023年第2期17卷 19-28页

作者： Mourin Jarin Zeou Dou Haiping Gao Yongsheng Chen Xing Xie School of Civil&Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Two-thirds of the world’s population has limited access to potable *** we continue to use up our freshwater resources,new and improved techniques for potable water production are ***,we present a general concept called“salinity exchange”that transfers salts from seawater or brackish water to treated wastewater until their salinity values approximately switch,thus producing wastewater with an increased salinity for discharge and desalinated seawater as the potable water *** have demonstrated this process using *** exchange has been successfully achieved between influents of different salinities under various operating ***-scale salinity exchange electrodialysis(SEE)systems can produce high-quality desalinated water at~1 mL/min with an energy consumption less than 1 kWh/*** has also been operated using real water,and the challenges of its implementation at a larger scale are evaluated.

关键词： Desalination Potable water reuse Ion-exchange membrane salinity gradient energy Wastewater discharge