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，全球对能源消耗的需求已经快速增长，根据最近的估计，到2040年，该需求预计将增加30％。尽管可再生技术取得了长足的进步，但预计化石燃料仍然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增加可再生资源整合来减轻这种影响的关键组成部分。它允许在工业过程中（主要来自化石资源）以及可再生能源（例如太阳能）中产生的废热，然后以稍后的需求使用。因此，增强的存储容量，有效的热传递进出存储介质以及兼容性对于实际实施热存储系统至关重要。潜在热量存储在常规的敏感热存储中具有多个关键优势，使其成为更合适的存储选项。但是，由于缺乏对基本热流体过程，特别是在相转换期间，因此缺乏对基本的热流体过程的了解，从而阻碍了提高其热性能的努力。对控制传热过程的基本物理过程的更好的了解和理解对于技术进步和广泛的实施/适应是必要的。 拟议的研究计划旨在促进阶段过渡期间基本传热过程的科学知识。该研究计划的长期目标是为实用工程应用开发创新和有效的热量存储系统，用于节能和可持续性。拟议的研究计划的短期目标是：1）在经受可变几何参数的相变期间对热场和流场进行详细表征，2）识别和研究影响热传递过程的物理机制，以及3）开始在实际应用中实施这一知识。 拟议的研究将直接为全球努力和可持续性的努力做出贡献。这将使人们更好地理解影响相变过程中影响传热过程的物理机制或参数。然后，这种高级知识将导致开发新型的高效热存储系统，以用于各个领域的应用。由于基于化石的资源减少了能源的消耗以及使用可再生能源的热系统整合，这将导致对社会的环境和经济利益，这两者都会减少温室气体的排放。