基于相变材料的热能储存系统被认为是提高能源效率和可持续性的最有效方法之一,近年来备受关注。由于相变材料储放热速率低,导热系数小,极大的限制了其实际应用。目前常用复合手段增强体系的导热性能,如插入翅片,引入高导热填料等。本...基于相变材料的热能储存系统被认为是提高能源效率和可持续性的最有效方法之一,近年来备受关注。由于相变材料储放热速率低,导热系数小,极大的限制了其实际应用。目前常用复合手段增强体系的导热性能,如插入翅片,引入高导热填料等。本文综述了国内外复合相变材料导热性能方面的研究进展,分类归纳了提高复合相变材料热导率的方法和导热增强机理,并对复合相变材料导热性能增强研究的挑战和前景进行了展望。Thermal energy storage systems based on phase change materials (PCMs) are considered to be one of the most effective approaches for improving energy efficiency and sustainability, and have attracted significant attention in recent years. However, their practical application is greatly limited due to the low heat storage and release rate as well as the small thermal conductivity of PCMs. Currently, composite methods such as the addition of fins and high thermal conductivity fillers are commonly employed to enhance the thermal conductivity of these systems. In this review, the research progress on thermal conductivity of composite phase change materials at home and abroad is presented, and the methods and mechanisms of improving thermal conductivity of composite phase change materials are classified and summarized. Finally, the main challenges and outlooks of composite phase change materials were outlined.展开更多
新工科背景下,实验教学是培养材料学专业应用型人才的必要教学环节。本文结合我校高分子材料与工程专业实验课程的现状,总结了该课程教学中存在的主要问题,从实验课程内容、实验开展方式和考核方式等方面提出了实验教学改革探索的具体措...新工科背景下,实验教学是培养材料学专业应用型人才的必要教学环节。本文结合我校高分子材料与工程专业实验课程的现状,总结了该课程教学中存在的主要问题,从实验课程内容、实验开展方式和考核方式等方面提出了实验教学改革探索的具体措施,以发挥学生的主观能动性,培养新工科形势下创新性应用型人才。Under the background of emerging engineering education, experimental teaching is a necessary teaching link to train applied talents of materials majors. Based on the current situation of the experimental course of polymer materials and engineering major in our university, the main problems of the teaching were summarized. From the aspects of the content of the experimental course, the way of carrying out the experiment and the way of assessment were proposed in order to give full play to students’ subjective initiative and cultivate innovative applied talents under the situation of emerging engineering education.展开更多
文摘基于相变材料的热能储存系统被认为是提高能源效率和可持续性的最有效方法之一,近年来备受关注。由于相变材料储放热速率低,导热系数小,极大的限制了其实际应用。目前常用复合手段增强体系的导热性能,如插入翅片,引入高导热填料等。本文综述了国内外复合相变材料导热性能方面的研究进展,分类归纳了提高复合相变材料热导率的方法和导热增强机理,并对复合相变材料导热性能增强研究的挑战和前景进行了展望。Thermal energy storage systems based on phase change materials (PCMs) are considered to be one of the most effective approaches for improving energy efficiency and sustainability, and have attracted significant attention in recent years. However, their practical application is greatly limited due to the low heat storage and release rate as well as the small thermal conductivity of PCMs. Currently, composite methods such as the addition of fins and high thermal conductivity fillers are commonly employed to enhance the thermal conductivity of these systems. In this review, the research progress on thermal conductivity of composite phase change materials at home and abroad is presented, and the methods and mechanisms of improving thermal conductivity of composite phase change materials are classified and summarized. Finally, the main challenges and outlooks of composite phase change materials were outlined.
文摘新工科背景下,实验教学是培养材料学专业应用型人才的必要教学环节。本文结合我校高分子材料与工程专业实验课程的现状,总结了该课程教学中存在的主要问题,从实验课程内容、实验开展方式和考核方式等方面提出了实验教学改革探索的具体措施,以发挥学生的主观能动性,培养新工科形势下创新性应用型人才。Under the background of emerging engineering education, experimental teaching is a necessary teaching link to train applied talents of materials majors. Based on the current situation of the experimental course of polymer materials and engineering major in our university, the main problems of the teaching were summarized. From the aspects of the content of the experimental course, the way of carrying out the experiment and the way of assessment were proposed in order to give full play to students’ subjective initiative and cultivate innovative applied talents under the situation of emerging engineering education.
