2008年10月29日,由缤纷杂志与ANDREW MARTIN联合主办的"2008 ANDREW MARTIN国际室内设计年奖获奖作品全国巡回展".在北京博洛尼家居体验馆拉开帷幕。并于10月31日在杭州.11月21日在上海、11月25日在深圳、11月26日在广州盛大...2008年10月29日,由缤纷杂志与ANDREW MARTIN联合主办的"2008 ANDREW MARTIN国际室内设计年奖获奖作品全国巡回展".在北京博洛尼家居体验馆拉开帷幕。并于10月31日在杭州.11月21日在上海、11月25日在深圳、11月26日在广州盛大开展。展开更多
Thermal energy storage(TES)solutions offer opportunities to reduce energy consumption,greenhouse gas emissions,and cost.Specifically,they can help reduce the peak load and address the intermittency of renewable energy...Thermal energy storage(TES)solutions offer opportunities to reduce energy consumption,greenhouse gas emissions,and cost.Specifically,they can help reduce the peak load and address the intermittency of renewable energy sources by time shifting the load,which are critical toward zero energy buildings.Thermochemical materials(TCMs)as a class of TES undergo a solid-gas reversible chemical reaction with water vapor to store and release energy with high storage capacities(600 kWh m^(-3))and negligible self-discharge that makes them uniquely suited as compact,stand-alone units for daily or seasonal storage.However,TCMs suffer from instabilities at the material(salt particles)and reactor level(packed beds of salt),resulting in poor multi-cycle efficiency and high-levelized cost of storage.In this study,a model is developed to predict the pulverization limit or Rcrit of various salt hydrates during thermal cycling.This is critical as it provides design rules to make mechanically stable TCM composites as well as enables the use of more energy-efficient manufacturing process(solid-state mixing)to make the composites.The model is experimentally validated on multiple TCM salt hydrates with different water content,and effect of Rcrit on hydration and dehydration kinetics is also investigated.展开更多
1月10日,Coinbase Global Inc.的联合创始人兼首席执行官布莱恩·阿姆斯特朗(BrianArmstrong)宣布,他将裁掉约950名员工,约占公司员工总数的20%。阿姆斯特朗在一篇博客文章中写道,裁员通知会发送至相关员工的私人邮箱,并补充说,他...1月10日,Coinbase Global Inc.的联合创始人兼首席执行官布莱恩·阿姆斯特朗(BrianArmstrong)宣布,他将裁掉约950名员工,约占公司员工总数的20%。阿姆斯特朗在一篇博客文章中写道,裁员通知会发送至相关员工的私人邮箱,并补充说,他们已经无法登录公司系统。“我知道最后这一步让人感到突元、不近人情,”他写道,“但我相信,鉴于我们有责任保护客户信息,这是唯一的审慎选择。”展开更多
基金supported by the Energy Efficiency and Renewable Energy,Building Technologies Program,of the US Department of Energy,under contract no.DE-AC02-05CH11231the support on the DSC/TGA 3+supported by the Office of Science,Office of Basic Energy Sciences,of the U.S.Department of Energy under Contract No.DE-AC02-05CH11231
文摘Thermal energy storage(TES)solutions offer opportunities to reduce energy consumption,greenhouse gas emissions,and cost.Specifically,they can help reduce the peak load and address the intermittency of renewable energy sources by time shifting the load,which are critical toward zero energy buildings.Thermochemical materials(TCMs)as a class of TES undergo a solid-gas reversible chemical reaction with water vapor to store and release energy with high storage capacities(600 kWh m^(-3))and negligible self-discharge that makes them uniquely suited as compact,stand-alone units for daily or seasonal storage.However,TCMs suffer from instabilities at the material(salt particles)and reactor level(packed beds of salt),resulting in poor multi-cycle efficiency and high-levelized cost of storage.In this study,a model is developed to predict the pulverization limit or Rcrit of various salt hydrates during thermal cycling.This is critical as it provides design rules to make mechanically stable TCM composites as well as enables the use of more energy-efficient manufacturing process(solid-state mixing)to make the composites.The model is experimentally validated on multiple TCM salt hydrates with different water content,and effect of Rcrit on hydration and dehydration kinetics is also investigated.
文摘1月10日,Coinbase Global Inc.的联合创始人兼首席执行官布莱恩·阿姆斯特朗(BrianArmstrong)宣布,他将裁掉约950名员工,约占公司员工总数的20%。阿姆斯特朗在一篇博客文章中写道,裁员通知会发送至相关员工的私人邮箱,并补充说,他们已经无法登录公司系统。“我知道最后这一步让人感到突元、不近人情,”他写道,“但我相信,鉴于我们有责任保护客户信息,这是唯一的审慎选择。”
