Analysis of solar thermal energy systems for space and water heating

拟议研究的目标是：改进太阳能部件和系统的建模，确定影响其技术和经济可行性的关键设计和操作因素；说明加拿大典型负荷和气候条件对部件和系统性能的影响；确定有前景的太阳能热技术；开发用于供暖和制冷应用的新系统配置。将集中在以下三个研究领域开展工作：1)研究太阳能家庭热水应用的热能储存问题，包括与主要饮用水供应受到污染有关的健康和安全建议，以及防止军团病的发生；2)设计和整合太阳能空间和热水联合供暖系统(考虑加拿大的气候和负荷条件)及其与传统建筑系统的整合；3)分析大规模采用太阳能热能系统对饮用水和空间供暖应用的电力设施高峰负荷的影响，制定先进的控制战略，以最大限度地减少峰值负荷的排量。本研究所采用的方法将包括系统和部件一级的数值建模，并辅之以实验分析。在该研究计划内开发的计算机模拟将有助于将新的太阳能热技术与传统供暖和制冷系统进行优化和集成，并支持行业和政府加快建筑中太阳能使用的倡议。该研究计划还将开发适合加拿大条件的新部件和系统。为了努力减少与空间和热水供暖能源负荷相关的公用事业高峰需求，将制定新的控制策略。拟议的工作将增加太阳能系统的技术和经济可行性，并减少化石燃料消耗和温室气体排放。最后，参与这个项目的研究生将接受实验和数值领域的基础培训，并产生新的知识，这些知识将通过同行评议的文献进行传播。

The objectives of the proposed research are to: improve the modelling of solar energy components and systems, and determine the key design and operational factors that affect their technical and economical feasibility; illustrate the effects of typical Canadian load and climatic conditions on component and system performance; identify promising solar thermal technologies; and develop new system configurations for use in heating and cooling applications. Efforts will be focused in three research areas: 1) the study of thermal energy storage for solar domestic hot water applications accounting for health and safety recommendations related to the contamination of the mains potable water supply and protection from Legionellosis; 2) the design and integration of solar combi-systems for space and water heating (considering Canadian climate and load conditions) and their integration with conventional building systems; and 3) the analysis of the impact of large-scale implementation of solar thermal systems on electric utility peak loads for both potable water and space heating applications and the development of advanced control strategies to maximize the displacement of peak loads. The approach used for this study will consist of system and component level numerical modelling supported by experimental analysis. The computer modelling developed within this research program will assist in the optimization and integration of new solar thermal technologies with conventional heating and cooling systems, and support industry and government initiatives to accelerate the use of solar energy in buildings. The research program will also develop new components and systems suitable for Canadian conditions. In an effort to reduce utility peak demand associated with space and water heating energy loads, new control strategies will be established. The proposed work will increase the technical and economic feasibility of solar energy systems and reduce fossil fuel consumption and greenhouse gas emissions. Finally, graduate students involved in this program will receive fundamental training in both experimental and numerical fields and produce new knowledge that will be disseminated through peer-reviewed literature.