Characterization and development of PCM-based thermal energy storage systems

基于 PCM 的热能存储系统的表征和开发

• 批准号: RGPIN-2018-05653
• 负责人: Siddiqui, Kamran
• 金额: $ 2.84万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=713765
• 关键词: Characterization; development; PCM; based; thermal

Global demand for energy consumption has shown a rapid growth in recent years and as per recent estimates, by 2040, this demand is expected to increase by 30%. Despite a substantial advancement of renewable technologies, fossil fuels have been predicted to remain the primary energy source to meet this energy demand, which is detrimental for the climate and environment. Thermal energy storage is a key component to mitigate this effect through energy conservation and increased integration of renewable resources. It allows to store waste heat produced in industrial processes (mainly from fossil resources), as well as thermal energy from renewable sources such as solar, that can then be used later on demand. Hence, the enhanced storage capacity, efficient heat transfer in and out of the storage medium and compatibility are of utmost importance and crucial for the practical implementation of thermal storage systems. The latent-heat thermal storage has several key advantages over the conventional sensible-heat storage, making it a more suitable storage option. However, efforts to advance their thermal performance are hampered by a lack of understanding of fundamental thermo-fluid processes particularly during the phase transition. A better knowledge and understanding of the underlying physical processes that govern the heat transfer process is necessary for the technological advancement and wide-scale implementation/adaptation. The proposed research program is aimed at advancing the scientific knowledge of the fundamental heat transfer process during the phase transition. The long-term objectives of this research program are to develop innovative and efficient thermal storage systems for practical engineering applications for energy conservation and sustainability. The short-term objectives of the proposed research program are, 1) to conduct a detailed characterization of the thermal field and flow field during the phase change subjected to variable geometric parameters, 2) to identify and investigate the physical mechanisms that influence the heat transfer process and, 3) to begin the implementation of this knowledge in practical applications. The proposed research will directly contribute to the ongoing global efforts towards energy conservation and sustainability. It will lead to a better understanding of the physical mechanisms or parameters that influence heat transfer process during the phase change. This advanced knowledge will then lead to the development of novel high efficiency thermal storage systems for applications in various sectors. This will result in environmental and economical benefits to society due to reduced consumption of energy from fossil-based resources as well as a higher integration of thermal systems using renewable energy, both of which will reduce greenhouse gas emissions.

近年来，全球能源消费需求呈现快速增长，据最新预测，到2040年，这一需求预计将增长30%。尽管可再生技术取得了巨大进步，但预计化石燃料仍将是满足这种能源需求的主要能源，这对气候和环境有害。热能存储是通过节能和加强可再生资源整合来减轻这种影响的关键组成部分。它可以储存工业过程中产生的废热（主要来自化石资源）以及来自太阳能等可再生能源的热能，然后可以根据需要使用。因此，增强的存储容量、存储介质的高效传热和兼容性对于储热系统的实际实施至关重要。与传统的显热存储相比，潜热储热具有几个关键优势，使其成为更合适的存储选择。然而，由于缺乏对基本热流体过程（尤其是相变过程）的了解，提高其热性能的努力受到阻碍。更好地了解和理解控制传热过程的基本物理过程对于技术进步和大规模实施/适应是必要的。 拟议的研究计划旨在推进相变期间基本传热过程的科学知识。该研究计划的长期目标是开发创新高效的储热系统，用于节能和可持续发展的实际工程应用。拟议研究计划的短期目标是，1）对可变几何参数下相变期间的热场和流场进行详细表征，2）识别和研究影响传热的物理机制过程，3) 开始在实际应用中运用这些知识。 拟议的研究将直接为全球正在进行的节能和可持续发展努力做出贡献。它将有助于更好地理解相变期间影响传热过程的物理机制或参数。这些先进的知识将促进新型高效蓄热系统的开发，用于各个领域的应用。由于化石资源的能源消耗减少以及使用可再生能源的热系统的更高集成度，这将为社会带来环境和经济效益，这两者都将减少温室气体排放。