In order to effectively recover low and medium grade heat energy,a novel combined cooling and heating storage system based on zeolite-water is proposed in this paper.The system coupled the zeolite-water adsorption pro...In order to effectively recover low and medium grade heat energy,a novel combined cooling and heating storage system based on zeolite-water is proposed in this paper.The system coupled the zeolite-water adsorption process with the water evaporation refrigeration process during discharging process to realize generating cold energy and heat energy simultaneously.A more accurate kinetic model of zeolite and water adsorption is developed,and the thermodynamic performance of discharging process of the system is numerically analyzed.The results show the system has the higher energy conversion coefficient of 1.49 and the higher energy density of 1216.6 kJ/kg-zeolite.The change laws of system performances,such as energy generated,energy conversion coefficient and energy density,with key parameters during discharging process are revealed.The study provides a way for efficient utilization of low and medium grade heat energy.展开更多
电子轰击有源像素传感器(electron bombarded active pixel sensor,EBAPS)作为真空-固体混合型微光器件,其性能和工作寿命一定程度上取决于器件内部真空度保持情况。分析造成EBAPS器件真空度下降的原因,推断出真空度恶化的严重后果,提...电子轰击有源像素传感器(electron bombarded active pixel sensor,EBAPS)作为真空-固体混合型微光器件,其性能和工作寿命一定程度上取决于器件内部真空度保持情况。分析造成EBAPS器件真空度下降的原因,推断出真空度恶化的严重后果,提出提高和保持EBAPS器件内部真空度的手段,通过搭建超高真空除气系统对EBAPS器件中核心部件电子敏感CMOS部件的放气特性进行了研究,并根据研究结果得到最佳的除气工艺参数,为EBAPS数字化微光器件的制备提供了技术基础。展开更多
基金This study is financially supported by National Key R&D Plan(Grant No.2017YFB0903605)the National Science Fund for Distinguished Young Scholars(Grant No.51925604)+2 种基金International Partnership Program,Bureau of International Cooperation of Chinese Academy of Sciences(Grant No.182211KYSB20170029)Transformational Technologies for Clean Energy and Demonstration,Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA21070302)Beijing Key Laboratory of Distributed Combined Cooling Heating and Power System.
文摘In order to effectively recover low and medium grade heat energy,a novel combined cooling and heating storage system based on zeolite-water is proposed in this paper.The system coupled the zeolite-water adsorption process with the water evaporation refrigeration process during discharging process to realize generating cold energy and heat energy simultaneously.A more accurate kinetic model of zeolite and water adsorption is developed,and the thermodynamic performance of discharging process of the system is numerically analyzed.The results show the system has the higher energy conversion coefficient of 1.49 and the higher energy density of 1216.6 kJ/kg-zeolite.The change laws of system performances,such as energy generated,energy conversion coefficient and energy density,with key parameters during discharging process are revealed.The study provides a way for efficient utilization of low and medium grade heat energy.
文摘电子轰击有源像素传感器(electron bombarded active pixel sensor,EBAPS)作为真空-固体混合型微光器件,其性能和工作寿命一定程度上取决于器件内部真空度保持情况。分析造成EBAPS器件真空度下降的原因,推断出真空度恶化的严重后果,提出提高和保持EBAPS器件内部真空度的手段,通过搭建超高真空除气系统对EBAPS器件中核心部件电子敏感CMOS部件的放气特性进行了研究,并根据研究结果得到最佳的除气工艺参数,为EBAPS数字化微光器件的制备提供了技术基础。
