Study on Vertical Input/output Diffuser having Extreme Performance in Temperature-stratified Thermal Storage Tank

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360236
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Architectural environment/equipment
• Research Institution: Osaka University
• Principal Investigator: SAGARA Kazunobu 大阪大学, 工学(系)研究科(研究院), 教授 (30109285)
• Co-Investigator(Kenkyū-buntansha): KOTANI Hisashi 大阪大学, 大学院工学研究科, 准教授 (20243173) ; KITANO Hiroaki 三重大学, 大学院工学研究科, 准教授 (80293801) ; IWATA Takeshi 三重大学, 大学院工学研究科, 技術専門職員 (20636542)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 蓄熱 / 温度成層 / ディフューザー / CFD / 実験 / 性能評価 / 設計 / 簡易モデル

Outline of Final Research Achievements

Thermal energy storage air-conditioning system is effective for reduction of daytime peak demand in electric power. In this research project, diffuser installed in storage water tank was developed to have the highest performance. The relationship between various design parameters of storage system and thermal storage performance was introduced through theoretical and experimental study and computer simulation of fluid dynamics, and it was found that there can be the limit in improving performance of diffuser design. The thermal energy storage system of low cost in construction can be easily designed to have the highest performance.

Free Research Field

建築設備