太阳能集热器强化传热技术的局限性与挑战

Limitations and challenges of heat transfer enhancement techniques in solar thermal collectors:A review

目前,太阳能集热器在可再生能源领域发挥着至关重要的作用,这在核心能源专家和研究界得到了广泛的认可。由于这种太阳能收集技术的高能量转换率,迫切需要评价方法,以期改善传热过程。前期研究人员主要致力于工作流体的增强上,而忽略了其他同样有助于增强太阳能集热器传热过程的技术,这使得其他方向的研究逐渐过时了。本研究的主要目的是提供最新的进展和方法,以加强太阳能集热器的传热过程的最新概述。研究了传统技术和创新技术,探讨了它们在提高热性能和整体系统效率方面的有效性。对太阳能集热器强化传热技术的最新研究进行了全面的文献综述。确定了主要挑战、知识差距和局限性,并推荐了潜在的未来研究方案。这篇全面的综述将作为研究人员和主要能源参与者的指南,为太阳能集热器领域提供参考的研究方向。

Nowadays,there is wide acceptance among core energy experts and the research community that solar collectors have a critical role to play in the renewable energy sector.With the high-energy conversion rate associated with this solar energy harvesting technology,there is an urgent need to review various ways through which the heat transfer process can be improved.Researchers have mainly focused their attention on working fluid enhancement,thereby neglecting other techniques that can equally contribute to the heat transfer enhancement process in solar collectors.This has made studies in other directions obsolete.The primary objective of the present study is to provide an up-to-date overview of the latest advancements and novel approaches in enhancing the heat transfer process in solar collectors.Both conventional and innovative techniques were investigated,exploring their effectiveness in enhancing thermal performance and overall system efficiency.A comprehensive literature review of recent studies on heat transfer enhancement techniques in solar collectors was undertaken.Key challenges,knowledge gaps,and limitations were identified,and potential future research options were recommended.This holistic review will serve as a guide for researchers and key energy players,providing insight into the avalanche of research options available in the field of solar thermal collectors.