Testing and Analysis of a Liquid Desiccant HVAC System for Remote Community Greenhouses

由于恶劣的气候，加拿大偏远地区的社区往往很难种植当地的食物。再加上缺乏交通基础设施和与其他社区相距遥远，** 这限制了获得新鲜农产品的机会，并危及粮食安全。因此，Cindar Power Developments**Inc.（CPDI）正在开发一种新的高性能密封温室，用于北方气候，使这些 ** 社区有能力种植自己的蔬菜。新的温室将由一个高效的生物燃料热电联产发电厂提供动力，该发电厂还将为社区提供电力和热量。密封温室的一个关键挑战是需要满足 ** 以保持最佳植物生长的大的温室负荷。一个有前途的方法，服务这些负载是通过使用液体干燥剂（LD）除湿系统，吸收过量的水分在盐溶液。热，而不是 ** 电力是用来再生盐溶液允许连续操作。这比传统的蒸汽压缩除湿器使用更少的电能。这些热量将由高效率的热电厂提供。这项NSERC Engage Plus赠款继续了女王大学 ** 和CPDI研究人员的工作，该工作是在最初的Engage赠款下完成的，该赠款研究了LD系统和 ** 温室设计的可行性。Engage Plus扩展将允许计算机 ** 模型的改进和验证，并有助于在不久的 ** 将来在安大略西北部社区建立一个试点工厂。**

Remotely located Canadian communities' often have difficulty growing local foodstuffs due to their harsh**climates. Combined with the lack of transportation infrastructure and the long distances to other communities,**this limits access to fresh produce and jeopardizes food security. Consequently, Cindar Power Developments**Inc. (CPDI) is developing a new high-performance sealed greenhouse for use in northern climates to give these**communities the capacity to grow their own vegetables. The new greenhouse will be powered by a**high-efficiency, bio-fueled co-generation power plant that will also supply the community with electricity and**heat. A key challenge of sealed greenhouses is the creation of large dehumidification loads that need to be met**to maintain optimal plant growth. A promising method of servicing these loads are through the use of liquid**desiccant (LD) dehumidification systems that absorb the excess moisture in a salt solution. Heat, rather than**electricity is used to regenerate the salt solution allowing for continuous operation. This uses less electrical**energy than traditional vapour-compression dehumidifiers. This heat will be supplied from the high-efficiency**co-generation plant. This NSERC Engage Plus grant continues the work of researchers at Queen's University**and CPDI that was completed under an initial Engage grant which studied the feasibility of the LD system and**the greenhouse design. The Engage Plus extension will allow for the refinement and validation of the computer**model, and contribute to the establishment of a pilot plant in a North-Western Ontario community in the near**future.**