权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Performance Enhancement of Thermo-electrochemical Conversion Integrated with Forced Convection Cooling Through Investigation of Working Fluid Property

通过研究工作流体性质增强热电化学转换与强制对流冷却相结合的性能

基本信息

批准号：
21J14183
负责人：
池田寛
金额：
$ 0.96万
依托单位：
Central Research Institute of Electric Power Industry (2022)Tokyo Institute of Technology (2021)
依托单位国家：
日本
项目类别：
Grant-in-Aid for JSPS Fellows
财政年份：
2021
资助国家：
日本
起止时间：
2021-04-28 至 2023-03-31
项目状态：
已结题

项目摘要

申請者はこれまでに，フロー熱電発電の性能向上には物質輸送の促進が重要であることを明らかにし，作動流体の溶媒に低粘度高沸点溶媒γ-ブチロラクトン（沸点204 ℃，粘度1.7 mPa・s@25 ℃），溶質にコバルトビピリジン錯体を用いた電解液によって実用上有意な発電のデモンストレーションに成功してきた．令和４年度は，本技術の実社会応用を想定したスケールアップセルの設計指針を探索した．具体的には，実社会で使用され，200 ℃程度の積極冷却の要求とセンシング等小規模電力の需要が共存するシステムへの応用を想定し，除熱性能と発電性能とを共に最大化する流路形状を熱流体シミュレーションにより探索した．また，これまでに得られた一連の成果を学会発表し，本技術のアピールに努めた．シミュレーションでは令和３年度の成果で得られた電解液の物性を使用した．流路形状の探索方針として，１．高い熱伝達率を有する，２．電極間温度差が大きい（＝電圧の増大），３．電極表面積が大きい（＝除熱量と電流量の増大），４．電極間距離が短い（＝電流の増大），とした．結果，冷却促進のために一般的に使用されるピンフィン形状は，被冷却物である高温側電極内部の不均一な温度分布が顕著であり，電圧低下による発電性能の低下が懸念されるため，本技術には不適当と判断した．次に，電極間距離を縮小しつつ電極表面積の増大と電極間温度差の増大の全てを実現する形状として，平行平板形状について解析した．しかし，実社会応用を想定した除熱量に必要な流路長では電極間温度差の低下や圧力損失の増大が課題となった．そこで，高温側電極に対する衝突噴流冷却，かつ単一の流路入口に対して複数の流路出口が対応する形状とすることで電極間温度差，電極間距離，圧力損失の課題が改善されることを確認し，設計指針の一つとして得た．

The applicant is responsible for the improvement of the performance of the product. It is necessary to promote the operation of the fluid solvent with low viscosity and high boiling point (boiling point 204C, viscosity 1.7mPa s @ 25 ℃). In the year of 2004, the technology of this technology was used to guide the exploration of the design and exploration of the equipment in the society. Active cooling at the temperature of 200 ℃ requires that small-scale power plants, such as thermostat, need to co-exist with each other, except that the flow path shape is maximized, the flow path shape, the temperature, the temperature, the temperature, In this technology, the temperature difference between electrodes is very high, and the temperature difference between the electrodes is very high. The temperature difference between the electrodes (= radio), 3. The surface temperature of the cathode is high (except for the large amount of electricity flow). 4. The cathode temperature is short (= current temperature is high), the temperature is low. As a result, the cooling promotion thermostat is generally used in the cooling cycle, the temperature distribution inside the coolant is affected by the temperature distribution in the coolant, the temperature distribution in the coolant is very high, the temperature distribution in the coolant is low, the performance is low, the performance is poor, the performance is poor, and the technical equipment is not suitable for judging. The distance between the cathode and the cathode is small, the temperature difference between the electrodes is large, the temperature difference between the electrodes is large, and the shape of the parallel plate is analyzed. The temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the temperature difference, the temperature difference In order to improve the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the force loss, the temperature difference, the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the temperature difference between the electrodes, the temperature difference between the electrodes, the distance between the electrodes, the loss of force, the improvement of the temperature, the confirmation of the temperature, the temperature difference between the