Phase change material based fluid emulsion for enhanced geothermal recovery

用于增强地热采收的基于相变材料的流体乳液

• 批准号: 549600-2019
• 负责人: Sinton, David
• 金额: $ 23.21万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=721159
• 关键词: Phase; change; material; based; fluid

The overall energy conversion efficiency for conventional geothermal power plants is low compared to fossil fuel and nuclear power plant (>30%). Improving this efficiency is a key challenge for geothermal systems, and a necessary step to wider adoption of the technology. Eavor Technologies Inc. has pioneered a new closed-loop geothermal approach, which adapts horizontal drilling methods pioneered in unconventional oil and gas operations to clean geothermal heat extraction. The Eavor-Loop levers powerful passive thermosiphon pumping and as a closed system, permits the use of engineered working fluids that can more effectively extract heat from rock formations deep underground.The Sinton group is partnering with Eavor Technologies to develop and test working fluids that will increase the heat recovery rate and overall efficiency of the Eavor Loop. A 10% increase in thermal performance would have broad implications for the industry and accelerate the scaling and deployment of this made-in-Canada closed-loop geothermal technology. Phase change materials are excellent candidates and are the primary focus of this partnership. In a geothermal recovery fluid system such as the Eavor Loop, phase change material can store heat as latent heat, which increases the effective heat capacity of the fluid blend during the geothermal cycle. There are many phase change material candidates that are suitable for working at geothermal pressures (such as Al2(SO4)3-16H2O), as well as the extended pressure and temperature range of interest to Eavor. The Sinton group is the global leader in the area of microfluidic-based chemical performance testing, with particular strength in subsurface energy applications and associated temperatures and pressures. Just as Eavor's renewable energy approach is enabled by technology first developed for the oil and gas industry, the proposed fluid development approach here is enabled by the Sinton group`s past experience in chemical effectiveness testing for the oil and gas industry. Through this Alliance, these technologies will be innovated, adapted and applied - by Eavor and U of T team members together - to advance renewable energy.

与化石燃料和核电站相比，常规地热电厂的总能源转化效率较低（> 30％）。提高这种效率是地热系统的关键挑战，也是更广泛采用该技术的必要步骤。 Eavor Technologies Inc.开创了一种新的闭环地热方法，该方法适应了在非常规的油气和天然气操作中率先使用的水平钻井方法，以清洁地热萃取。 EAVOR-loop杠杆强大的被动热刺抽水，作为一个封闭的系统，允许使用工程的工作流体，可以更有效地从地下深处从岩层中提取热量。SintonGroup与Eavor Technologies合作开发和测试工作流体，以提高EAVOR LOOP的热量回收率和整体效率。热绩效增长10％将对该行业产生广泛的影响，并加速这项加拿大制造的闭环地热技术的扩展和部署。相变材料是出色的候选人，是该合作伙伴关系的主要重点。在地热恢复流体系统（例如EAVOR回路）中，相变材料可以作为潜在热量储存热量，从而增加地热周期中流体混合物的有效热容量。有许多相变材料候选物适用于在地热压力（例如AL2（SO4）3-16H2O）以及EAVOR感兴趣的延长压力和温度范围内。 Sinton组是基于微流体的化学性能测试领域的全球领导者，在地下能量应用以及相关的温度和压力方面具有特殊的强度。正如首次为石油和天然气行业开发的技术实现了EAVOR的可再生能源方法一样，Sinton Group过去在石油和天然气行业的化学有效性测试方面的经验实现了拟议的流体开发方法。 通过这个联盟，这些技术将由T团队成员的Eavor和U一起创新，改编和应用 - 以推动可再生能源。