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Directly release heat to outer space: Passive Daytime Radiative Cooling as a solution to reducing to building energy consumption

PhD defence, Thursday 30 November 2023, Yujie Yang

Yujie Yang

Overheating has significantly increased building energy consumption worldwide. Passive Daytime Radiative Cooling (PDRC), capable of lowering its surface temperature below the ambient temperature without extra energy consumption, offers a promising solution to this challenge. Yujie Yang's PhD project concentrated on the potential energy savings from applying this technology to buildings. During his studies, Yujie developed a comprehensive model that considers various climate parameters for PDRC simulations and formulated methods to integrate the PDRC model with existing Building Performance Simulation (BPS) tools. However, it's worth noting that PDRC can augment a building's heating energy demand. To address this, Yujie Yang also investigated temperature-adaptive PDRCs to assess their efficacy in offsetting the increased heating energy requirement.

The PhD study was completed at Civil and Architectural Engineering, Faculty of Technical Sciences, Aarhus University.

This summary was prepared by the PhD student.

Time: Thursday, November 30th at 14:00
Place: Building 3210, room 03.070 , Civil and Architectural Engineering, Aarhus University, Inge Lehmanns Gade 10, 8000, Aarhus
Title of PhD thesis: Modeling of Passive Daytime Radiative Cooling Solutions and Mitigation Strategies for Minimizing Heating Penalties in Cold Seasons
Contact information: Yujie Yang, e-mail: yujie.yang@cae.au.dk, tel.: +45 60903996

Members of the assessment committee:
Professor Liangzhu Wang, Building, Civil, and Environmental Engineering, Concordia University, Canada

Professor Zhiwen Luo, Architectural and Urban Science, Cardiff University, UK

Associate Professor Massimo Fiorentini (chair), Civil and Architectural Engineering, Aarhus University, Denmark

Main supervisor:
Associate Professor Li Rong, Civil and Architectural Engineering, Aarhus University, Denmark

Professor Guoqiang Zhang, Civil and Architectural Engineering, Aarhus University, Denmark

Language: The PhD dissertation will be defended in English

The defence is public.
The PhD thesis is available for reading at the Graduate School of Technical Sciences/GSTS,

Jens Baggesens Vej 53, building 5221, 8200 Aarhus N.


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