Towards enhanced energy efficiency via heat recovery and thermal innovations

废热包括从系统中逸出的所有形式的热量。为了符合“浪费”的条件，热损失不应该是给定系统的主要目的。由于到处损失的热量是巨大的，即使回收其中的一小部分也会对环境、社会和经济产生巨大的影响。目前的研究计划旨在克服一些最限制使用废热回收（WHR）系统的障碍。因此，该方案分为两个主题，以解决具体的障碍家庭。该计划的第一个主题探讨了如何将废热回收系统最佳地实施到大型复杂系统中。为此提出了一个新的框架。然后，它被用来研究不确定参数的影响，如未来的经济环境，以及合作的“热网格”的概念，其中许多行业或用户可以连接。该计划的第二个主题侧重于开发和改进三种特定类型的设备或技术，即智能外壳，以捕获从表面逸出的热量，用于低温储热的相变材料的创新潜热储存单元，以及变形热力学动力循环。该计划面向与WHR系统相关的新建模方法和多目标优化策略的开发。它的目的是提供一个更深入的了解一些最限制因素，阻止WHR被更广泛地使用。

Waste heat includes all forms of heat escaping from a system. To be qualified of "waste", heat losses should not be the primary purpose of that given system. Since the amount of heat that is lost everywhere is tremendous, recovering even a small portion of it could have a tremendous impact on the environment, the society and the economy. The present research program aims at overcoming some of the most limiting barriers to the use waste heat recovery (WHR) systems. The program has thus been divided into two themes to address specific families of barriers. The first theme of the program explores how to implement optimally waste heat recovery systems into large and complex systems. A new framework is proposed in order to do that. It is then used to study the impact of uncertain parameters such as the future of the economic environment as well as the concept of collaborative “thermal grids” in which many industries or users can be connected. The second theme of the program focuses on the development and improvement of three particular types of equipment or technology, namely smart shells to capture heat escaping from a surface, innovative latent heat storage units with phase change materials for low temperature heat storage, and morphing thermodynamic power cycles. The program is oriented towards the development of new modeling approaches and multi-objective optimization strategies related to WHR systems. It aims at providing a deeper understanding of some of the most limiting factors preventing WHR to be more widely used.