Experimental and numerical evaluation of a novel dual-channel windcatcher with a rotary scoop for energy-saving technology integration

Journal article


Li, J., Calautit, J., Jimenez-Bescos, C. and Riffat, S. 2023. Experimental and numerical evaluation of a novel dual-channel windcatcher with a rotary scoop for energy-saving technology integration. Building and Environment. 230, pp. 1-17. https://doi.org/10.1016/j.buildenv.2023.110018
AuthorsLi, J., Calautit, J., Jimenez-Bescos, C. and Riffat, S.
Abstract

With the increasing requirements for fresh air supply in buildings after the COVID-19 pandemic and the rising energy demand from buildings, there has been an increased emphasis on passive cooling techniques such as natural ventilation. While natural ventilation devices such as windcatchers can be a sustainable and low-cost solution to remove indoor pollutants and improve indoor air quality, it is not as reliable as mechanical systems. Integration with low-energy cooling, heating or heat recovery technologies is necessary for operation in unfavourable outdoor conditions. In this research, a novel dual-channel windcatcher design consisting of a rotary wind scoop and a chimney was proposed to provide a fresh air supply irrespective of the wind direction. The dual-channel design allows for passive cooling, dehumidification and heat recovery technology integration to enhance its thermal performance. In this design, the positions of the supply and return duct are “fixed” or would not change under changing wind directions. An open wind tunnel and test room were employed to experimentally evaluate the ventilation performance of the proposed windcatcher prototype. A Computational Fluid Dynamic (CFD) model was developed and validated to further evaluate the system's ventilation performance. The results confirmed that the system could supply sufficient fresh air and exhaust stale air under changing wind directions. The ventilation rate of the rotary scoop windcatcher was higher than that of a conventional 8-sided multidirectional windcatcher of the same size.

KeywordsCOVID-19; Ventilation ; Windcatcher
Year2023
JournalBuilding and Environment
Journal citation230, pp. 1-17
PublisherElsevier
ISSN1873-684X
Digital Object Identifier (DOI)https://doi.org/10.1016/j.buildenv.2023.110018
Web address (URL)https://doi.org/10.1016/j.buildenv.2023.110018
Output statusPublished
Publication dates16 Jan 2023
Publication process dates
Accepted13 Jan 2023
Deposited24 May 2023
Permalink -

https://repository.derby.ac.uk/item/9yy46/experimental-and-numerical-evaluation-of-a-novel-dual-channel-windcatcher-with-a-rotary-scoop-for-energy-saving-technology-integration

  • 20
    total views
  • 0
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

Numerical Investigation of the Influence of Vegetation on the Aero-Thermal Performance of Buildings with Courtyards in Hot Climates
Hao Sun, Carlos Jimenez-Bescos, Murtaza Mohammadi, Fangliang Zhong and John Kaiser Calautit 2024. Numerical Investigation of the Influence of Vegetation on the Aero-Thermal Performance of Buildings with Courtyards in Hot Climates. Energies. 14 (17), pp. 1-25. https://doi.org/10.3390/en14175388
Impact of Climate Change on the Heating Demand of Buildings. A District Level Approach
Apostolopoulou, A., Jimenez-Bescos, C., Cavazzi, S. and Boyd, D. Impact of Climate Change on the Heating Demand of Buildings. A District Level Approach. Environmental and Climate Technologies. 27 (1), pp. 1-12. https://doi.org/10.2478/rtuect-2023-0066
A critical review of windcatcher ventilation: Micro-environment, techno-economics, and commercialisation
Miaomiao Liu, Payam Nejat, Pinlu Cao, Carlos Jimenez-Bescos and John Kaiser Calautit 2023. A critical review of windcatcher ventilation: Micro-environment, techno-economics, and commercialisation. Renewable and Sustainable Energy Reviews. 191, pp. 1-22. https://doi.org/10.1016/j.rser.2023.114048
Can windcatcher's natural ventilation beat the chill? A view from heat loss and thermal discomfort
Liu, M., Almazmumi, S., Cao, P., Carlos Jimenez-bescos and Calautit, J. K. 2023. Can windcatcher's natural ventilation beat the chill? A view from heat loss and thermal discomfort. Building and Environment. 247, pp. 1-21. https://doi.org/10.1016/j.buildenv.2023.110916
Performance evaluation of wind tower natural ventilation with passive solid tube heat recovery based on CO2 levels
Miaomiao Liu, Carlos Jimenez-Bescos and John Kaiser Calautit 2023. Performance evaluation of wind tower natural ventilation with passive solid tube heat recovery based on CO2 levels. Journal of Building Engineering. 72, pp. 1-19. https://doi.org/10.1016/j.jobe.2023.106457
CFD simulation of pumping ventilation in a three-story isolated building with internal partitioning: Effects of partition widths, heights and locations
Zhong, H.-Y., Sun, J., Lin, C., Wu, S.-H., Shang, J., Kikumoto, H., Qian, F.-P., Jimenez-Bescos, C. and Zhao, F.-Y. 2023. CFD simulation of pumping ventilation in a three-story isolated building with internal partitioning: Effects of partition widths, heights and locations. Building Simulation. pp. 1-18. https://doi.org/10.1007/s12273-023-1068-3
Passive Heat Recovery Wind Tower: Assessing the Overheating Risk in Summertime and Ventilation Heat Loss Reduction in Wintertime
Liu, M., Jimenez-Bescos, C. and Calautit, J.K. 2023. Passive Heat Recovery Wind Tower: Assessing the Overheating Risk in Summertime and Ventilation Heat Loss Reduction in Wintertime. Elsevier. https://doi.org/10.2139/ssrn.4165662
Experiment and Numerical Investigation of a Novel Flap Fin Louver Windcatcher for Multidirectional Natural Ventilation and Passive Technology Integration
Li, J., Calautit, J. K. and Jimenez-Bescos, C. 2023. Experiment and Numerical Investigation of a Novel Flap Fin Louver Windcatcher for Multidirectional Natural Ventilation and Passive Technology Integration. Building and Environment. 242, pp. 1-18. https://doi.org/10.2139/ssrn.4364216
Evaluating the energy-saving potential of earth-air heat exchanger (EAHX) for Passivhaus standard buildings in different climates in China
Jiaxiang Li, Carlos Jimenez-Bescos, John Kaiser Calautit and Jiawei Yao 2023. Evaluating the energy-saving potential of earth-air heat exchanger (EAHX) for Passivhaus standard buildings in different climates in China. Energy and Buildings. 288, pp. 1-17. https://doi.org/10.1016/j.enbuild.2023.113005
Towards a Combined Physical and Social Evaluation of Climate Vulnerability in Coastal Urban Megacities
Komali Kantamaneni, Qiong Li, Haotian Wu, Mingyu Zhu, Athanasia Apostolopoulou, Weijie Xu, Inji Kenawy, Lakshmi Priya Rajendran, Louis Rice, Carlos Jimenez-Bescos, Sigamani Panneer and Robert Ramesh Babu Pushparaj 2023. Towards a Combined Physical and Social Evaluation of Climate Vulnerability in Coastal Urban Megacities. Water. 15 (4), pp. 1-20. https://doi.org/10.3390/w15040712
Evaluating the performance of an EnerPHit building under different climates in Greece – A Digital Twin approach
Athanasia Athanasia, Athanasia Apostolopoulou and Carlos Jimenez-Bescos 2020. Evaluating the performance of an EnerPHit building under different climates in Greece – A Digital Twin approach. International Conference on Applied Energy 2020. Energy Proceedings . https://doi.org/10.46855/energy-proceedings-7328