Show simple item record

dc.contributor.authorJin, Ting
dc.contributor.authorZhang, Zujing
dc.contributor.authorGe, Liang
dc.contributor.authorLiang, Xing
dc.contributor.authorWu, Hongwei
dc.contributor.authorMao, Ruiyong
dc.date.accessioned2023-10-30T09:45:01Z
dc.date.available2023-10-30T09:45:01Z
dc.date.issued2023-12-31
dc.identifier.citationJin , T , Zhang , Z , Ge , L , Liang , X , Wu , H & Mao , R 2023 , ' Experimental investigation on thermal performance of underground refuge chamber under natural convection and ventilation ' , Case Studies in Thermal Engineering , vol. 52 , 103637 , pp. 1-16 . https://doi.org/10.1016/j.csite.2023.103637
dc.identifier.issn2214-157X
dc.identifier.urihttp://hdl.handle.net/2299/26994
dc.description© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the Creative Commons Attribution-NonCommercial-NoDerivatives CC BY-NC-ND licence, https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.description.abstractThermal performance of densely populated underground buildings is normally influenced by various factors, including the surrounding rock (SR), ventilation, and indoor heat sources. It is recognized that little experimental studies on thermal control for the above building was reported. In this article, a full-size 50-person mine refuge chamber (MRC) was newly constructed to test the thermal performance under natural convection and ventilation. The heat ducts were used to simulate the heat released from human body. Experimental results indicated that: (1) the intensity of the heat transfer between rock and air increases with the rise in heat source rate and ventilation temperature (VT), while it decreases as the initial surrounding rock temperature (ISRT) increases; (2) when considering the joint temperature control of pre-cooled SR, it is recommended to reduce the VT linearly during the evacuation period in order to ensure the thermal safety of personnel. During the non-refuge period, the cold amount should be stored as far as possible into the shallow SR body to make full use of it; (3) to ensure the thermal safety of an MRC with a capacity of 30 people for 96 h, cooling measures are required when the ISRT exceeds 21.3 °C. In addition, when the ISRT reaches 27.6 °C, the per capita ventilation is 0.19 m3/min, and the temperature is 26 °C, which can also meet the requirements. This study provides experimental verification as a basis for future research on underground space temperature control considering the influence of SR.en
dc.format.extent16
dc.format.extent1166034
dc.language.isoeng
dc.relation.ispartofCase Studies in Thermal Engineering
dc.subjectInitial surrounding rock temperature
dc.subjectMine refuge chamber
dc.subjectNatural convection
dc.subjectThermal control
dc.subjectVentilation
dc.subjectEngineering (miscellaneous)
dc.subjectFluid Flow and Transfer Processes
dc.titleExperimental investigation on thermal performance of underground refuge chamber under natural convection and ventilationen
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionCentre for Climate Change Research (C3R)
dc.contributor.institutionCentre for Future Societies Research
dc.contributor.institutionEnergy and Sustainable Design Research Group
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Engineering and Technology
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85175032248&partnerID=8YFLogxK
rioxxterms.versionofrecord10.1016/j.csite.2023.103637
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record