Accurate design tools for archimedes screw generators

阿基米德螺旋发电机是一种新兴的微水电发电技术。ASG效率高，成本竞争力强，对环境影响小。支持性政策、公众对可持续发电的支持，以及许多潜在安装地点的可用性，都支持北美ASG市场的持续增长。该项目建立在PI和Bluestreak在ASG上进行的六年研究合作的基础上，由NSERC Engage和CRD计划支持，包括目前的CRD项目，该项目将于2018年12月结束。这项工作已经产生了两代预测阿基米德螺杆性能的操作模型，这些模型已被纳入Bluestreak的操作设计工具中，但是，仍然有潜力和需要提高ASG模型的准确性。这个新项目将提高实际ASG设计工具的准确性，通过增加我们对ASG中损耗机制的详细了解来减少不确定性。这项研究还将确定从实验室规模的ASG到全尺寸并网机组的精确测量方法，这已成为一个关键问题。在实践中，通常需要在单个站点设计具有多个ASG的安装。新的模型将扩展到包括多个螺旋系统，包括水库，大坝，供应渠道和接收盆地。这项研究将继续利用实验室和理论研究，并将广泛使用计算流体动力学（CFD）来研究无法直接测量的现象。对四到六个全面的ASG进行详细的实地研究是该项目的一个组成部分。目前没有来自全尺寸ASG的信息可以实际用于模型和CFD的详细验证。这项研究将提供一个准确的网站特定的设计过程，可以提供网站优化ASG系统的基础。提高对ASG技术的理解，可能将Bluestreak和加拿大定位为ASG技术的全球领导者，同时帮助提供所需的HQP，使其在可持续能源技术方面具有深厚的专业知识。

Archimedes screw generators (ASGs) are an emerging microhydro electricity generation technology. ASGs areefficient, cost competitive and have low environmental impact. Supportive policy, public support forenvironmentally sustainable power generation, and the availability of many potential installation sites allsupport continued growth of the North American market for ASGs. This project builds on six years of researchcollaboration between the PI and Bluestreak on ASGs, supported by NSERC Engage and CRD programs,including a current CRD project that ends in Dec. 2018. This work has produced two generations of operationalmodels that predict Archimedes screw performance which have been incorporated into Bluestreak's operationaldesign tools, however, there is still potential and need to improve the accuracy of the ASG models. This newproject will improve the accuracy of practical ASG design tools, reducing uncertainty by increasing ourdetailed knowledge of loss mechanisms in an ASG. This research will also determine methods to accuratelyscale measurements from laboratory scale ASGs to full-size grid connected units, which has emerged as a keyissue. In practice, it is common to need to design installations with multiple ASGs at a single site. New modelswill be extended to include systems of multiple screws, including the reservoir, dam, supply channels andreceiving basin. This research will continue to utilize laboratory and theoretical studies, and will makeextensive use of computational fluid dynamics (CFD) to investigate phenomena that cannot be directlymeasured. Detailed field studies of four to six full scale ASGs are an integral part of this project. There is noinformation currently available from full-scale ASGs that can be practically used for detailed validation ofmodels and CFD. This research will provide the basis for an accurate site-specific design process that canprovide site-optimized ASG systems. Improved understanding of ASG technology, potentially positioningBluestreak and Canada as global leaders in ASG technology while helping provide needed HQP with deepexpertise in sustainable energy technologies.