能源效率优化的多尺度方法综述

Energy efficiency optimization by multi-scale approach

如何提高能源效率是实现双碳目标和可持续发展面临的主要挑战之一.本文介绍了我们使用多尺度方法优化能源系统效率的研究策略,并通过一系列的应用实例进行具体说明.具体涉及三个尺度,即局部、部件和系统尺度,每个尺度都有自己的优化标准,需要从不同的角度用不同的方法进行优化.该多尺度优化策略能为学术研究、研发中心和不同行业的能源系统和过程工程提供一种新颖的设计方法和优化工具.

Increasing energy efficiency is one of the key challenges for energy systems.This paper presents my strategy for optimising energy efficiency through a multi-scale approach,and some supporting examples to illustrate our related research work.A multi-scale approach has been developed and applied,involving three scales:local scale,component scale and system scale,each with its own performance criteria to be treated appropriately and using original optimisation methods.More specifically,the objectives are:(1)local scale,to intensify heat and mass transfer by controlling transport mechanisms at interfaces using original shape and topological optimization methods;(2)component scale,to design and develop innovative fluidic,thermal and reactive components through their structural optimisation and fluid flow distribution management;(3)system scale,to develop compact,modular,integrated and multi-functional energy systems for energy production,storage and utilisation,and to maximize their global performance with minimum impact of dissipations;(4)for scale transition,to seek structural,functional and temporal synergy effects through appropriate scaling laws.Some illustrative examples are presented in detail to illustrate the proposed strategy,which is expected to provide a novel approach and a powerful tool for academic research,R&D centres and various industries in many energy systems and processes.