Numerical and Experimental Analysis of a Multi-Directional Wind Tower Integrated with Vertically-Arranged Heat Transfer Devices (VHTD).

Hdl Handle:
http://hdl.handle.net/10545/620581
Title:
Numerical and Experimental Analysis of a Multi-Directional Wind Tower Integrated with Vertically-Arranged Heat Transfer Devices (VHTD).
Authors:
Calautit, John Kaiser; Hughes, Ben; O'Connor, Dominic; Shahzad, Sally ( 0000-0003-2425-776X )
Abstract:
The aim of this work was to investigate the performance of a multi-directional wind tower integrated with vertically-arranged heat transfer devices (VHTD) using Computational Fluid Dynamics (CFD) and wind tunnel analysis. An experimental scale model was created using 3D printing. The scale model was tested in a uniform flow closed-loop wind tunnel to validate the CFD data. Numerical results of the supply airflow were compared with experimental data. Good agreement was observed between both methods of analysis. The Grid Convergence Method (GCI) method was used to estimate the uncertainty due to discretisation. Results have indicated that the achieved indoor air speed was reduced by 8–17% following the integration of the VHTD. The integration of VHTD had a positive effect on cooling performance of the wind tower, it reduced the incoming fresh air by up to 12 K. The effect of varying the number of VHTD rows (1–3 rows) on the system’s performance were also investigated. Additional simulations were also conducted to investigate the effect of atmospheric boundary layer (ABL) flows on the wind tower ventilation performance and also compare it with the results of uniform flow wind tunnel study.
Affiliation:
University of Sheffield; University of Derby
Citation:
Calautit, J.K., Hughes, B., O’Connor, D., Shahzad, S.S. 2016. 'Numerical and Experimental Analysis of a Multi-Directional Wind Tower Integrated with Vertically-Arranged Heat Transfer Devices (VHTD).' Applied Energy Journal, Vol. 185, Part 2, pp. 1120-1135. DOI: 10.1016/j.apenergy.2016.02.025
Journal:
Applied Energy Journal
Issue Date:
2016
URI:
http://hdl.handle.net/10545/620581
DOI:
10.1016/j.apenergy.2016.02.025
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0306261916301489
Type:
Article
Language:
en
Appears in Collections:
Department of Mechanical Engineering & the Built Environment

Full metadata record

DC FieldValue Language
dc.contributor.authorCalautit, John Kaiseren
dc.contributor.authorHughes, Benen
dc.contributor.authorO'Connor, Dominicen
dc.contributor.authorShahzad, Sallyen
dc.date.accessioned2016-10-15T19:47:40Z-
dc.date.available2016-10-15T19:47:40Z-
dc.date.issued2016-
dc.identifier.citationCalautit, J.K., Hughes, B., O’Connor, D., Shahzad, S.S. 2016. 'Numerical and Experimental Analysis of a Multi-Directional Wind Tower Integrated with Vertically-Arranged Heat Transfer Devices (VHTD).' Applied Energy Journal, Vol. 185, Part 2, pp. 1120-1135. DOI: 10.1016/j.apenergy.2016.02.025en
dc.identifier.doi10.1016/j.apenergy.2016.02.025en
dc.identifier.urihttp://hdl.handle.net/10545/620581-
dc.description.abstractThe aim of this work was to investigate the performance of a multi-directional wind tower integrated with vertically-arranged heat transfer devices (VHTD) using Computational Fluid Dynamics (CFD) and wind tunnel analysis. An experimental scale model was created using 3D printing. The scale model was tested in a uniform flow closed-loop wind tunnel to validate the CFD data. Numerical results of the supply airflow were compared with experimental data. Good agreement was observed between both methods of analysis. The Grid Convergence Method (GCI) method was used to estimate the uncertainty due to discretisation. Results have indicated that the achieved indoor air speed was reduced by 8–17% following the integration of the VHTD. The integration of VHTD had a positive effect on cooling performance of the wind tower, it reduced the incoming fresh air by up to 12 K. The effect of varying the number of VHTD rows (1–3 rows) on the system’s performance were also investigated. Additional simulations were also conducted to investigate the effect of atmospheric boundary layer (ABL) flows on the wind tower ventilation performance and also compare it with the results of uniform flow wind tunnel study.en
dc.language.isoenen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0306261916301489en
dc.subjectABLen
dc.subjectCFDen
dc.subjectHot climatesen
dc.subjectNatural ventilationen
dc.subjectWind tunnelen
dc.titleNumerical and Experimental Analysis of a Multi-Directional Wind Tower Integrated with Vertically-Arranged Heat Transfer Devices (VHTD).en
dc.typeArticleen
dc.contributor.departmentUniversity of Sheffielden
dc.contributor.departmentUniversity of Derbyen
dc.identifier.journalApplied Energy Journalen
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