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Experimental studies on the energy performance of a novel wavy-shape Trombe wall

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journal contribution
posted on 2022-09-14, 15:32 authored by Hongkuan Chen, Shuli Liu, Mahroo EftekhariMahroo Eftekhari, Yongcai Li, Wenjie Ji, Yongliang Shen

Trombe wall is widely used as a passive solar technique to reduce energy consumption in buildings. Numerous studies have been carried out on improving the conventional Trombe wall, but few of them have focused on the impact of its shape on energy performance. In this research, the energy performance of the novel wavy-shape Trombe wall has been investigated. The experimental results showed that the novel wavy-shape Trombe wall model with an intersection angle of 90° or 120° has significantly improved the air velocity, surface and airflow temperatures, resulting in better overall performance. The heat flux of the wavy-shape Trombe wall model with an intersection angle of 90° is 24% and 68% higher than that of the flat model with the incidence angles of 40° and 60° respectively. The heat flux of the wavy-shape Trombe wall model with an intersection angle of 120° is 7%, 8%, and 4% higher than that of the flat model with the incidence angles of 20°, 40°, and 60° respectively. The results showed that a wavy-shape Trombe wall with a proper intersection angle, within a considerable percentage of daytime, has a much better energy performance than a traditional Trombe wall.

Funding

National Natural Science Foundation of China (No. 52178063)

History

School

  • Architecture, Building and Civil Engineering

Published in

Journal of Building Engineering

Volume

61

Publisher

Elsevier

Version

  • AM (Accepted Manuscript)

Rights holder

© Elsevier

Publisher statement

This paper was accepted for publication in the journal Journal of Building Engineering and the definitive published version is available at https://doi.org/10.1016/j.jobe.2022.105242

Acceptance date

2022-09-03

Publication date

2022-09-08

Copyright date

2022

ISSN

2352-7102

Language

  • en

Depositor

Prof Mahroo Eftekhari. Deposit date: 14 September 2022

Article number

105242

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