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A novel personal co...
A novel personal cooling system (PCS) incorporated with phase change materials (PCMs) and ventilation fans: An investigation on its cooling efficiency
- Artikel/kapitelEngelska2015
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LIBRIS-ID:oai:lup.lub.lu.se:40394b73-02b9-49ac-8a47-fdaf10c76442
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https://lup.lub.lu.se/record/7851940URI
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https://doi.org/10.1016/j.jtherbio.2015.07.002DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Personal cooling systems (PCS) have been developed to mitigate the impact of severe heat stress for humans working in hot environments. It is still a great challenge to develop PCSs that are portable, inexpensive, and effective. We studied the performance of a new hybrid PCS incorporating both ventilation fans and phase change materials (PCMs). The cooling efficiency of the newly developed PCS was investigated on a sweating manikin in two hot conditions: hot humid (HH, 34 °C, 75% RH) and hot dry (HD, 34 °C, 28% RH). Four test scenarios were selected: fans off with no PCMs (i.e., Fan-off, the CONTROL), fans on with no PCMs (i.e., Fan-on), fans off with fully solidified PCMs (i.e., PCM+Fan-off), and fans on with fully solidified PCMs (i.e., PCM+Fan-on). It was found that the addition of PCMs provided a 54∼78 min cooling in HH condition. In contrast, the PCMs only offered a 19–39 min cooling in HD condition. In both conditions, the ventilation fans greatly enhanced the evaporative heat loss compared with Fan-off. The hybrid PCS (i.e., PCM+Fan-on) provided a continuous cooling effect during the three-hour test and the average cooling rate for the whole body was around 111 and 315 W in HH and HD conditions, respectively. Overall, the new hybrid PCS may be an effective means of ameliorating symptoms of heat stress in both hot-humid and hot-dry environments.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Wei, Fanru
(författare)
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Lai, Dandan
(författare)
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Shi, Wen
(författare)
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Wang, Faming
(författare)
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Gao, ChuansiLund University,Lunds universitet,Ergonomi och aerosolteknologi,Institutionen för designvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Ergonomics and Aerosol Technology,Department of Design Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)desi-gch
(författare)
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Song, Guowen
(författare)
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Ergonomi och aerosolteknologiInstitutionen för designvetenskaper
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Thermal Biology: Elsevier BV52, s. 137-1460306-4565
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