Advanced PDSC Envelope System Utilizing Renewable Energy for Hygrothermal Control

• Project/Area Number: 21K14304
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 23020:Architectural environment and building equipment-related
• Research Institution: Kyushu University
• Principal Investigator: 李 学成 九州大学, 人間環境学研究院, 助教 (40897724)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Project Status: Granted (Fiscal Year 2021)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: Passive dehumidification / Radiative cooling / Solar heat collection / Humidity control / Hygrothermal control

Outline of Research at the Start

An intelligent building skin system has been developing, which can perform passive dehumidification in summer and solar heat collection in winter by air circulation of the roof ventilation layer utilizing solar heat. The passive dehumidification and solar collector (PDSC) envelope system controls thermal load (latent heat load due to dehumidification in summer, sensible heat load due to radiative cooling in summer and solar heat collection in winter) using renewable energy on the external walls and the roof.