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Article: Influence of sinusoidal airflow and airflow distance on human thermal response to a personalized ventilation system

TitleInfluence of sinusoidal airflow and airflow distance on human thermal response to a personalized ventilation system
Authors
KeywordsThermal comfort
Airflow distance
Personalized ventilation
Fluctuating period
Thermal sensation
Issue Date2018
Citation
Indoor and Built Environment, 2018, v. 27, n. 3, p. 317-330 How to Cite?
Abstract© 2016, © The Author(s) 2016. Since the concept of personalized ventilation was introduced in the late 1990s, many studies on thermal comfort have been conducted and a number of parameters identified. In this research, the influence of three parameters, the airflow speed, airflow fluctuating period and a parameter which has drawn less attention in previous studies – the airflow distance between the human subject and the nozzle of the personalized ventilation device on air movement perception, thermal sensation and thermal comfort – are studied. The combinations of fluctuating period and airflow amplitude were selected based on the Power Spectrum Density method. Then 25 human subjects participated in the thermal comfort experiment, each of them underwent 54 tests of different experimental conditions and expressed their thermal feelings by completing the survey questionnaire. Our findings showed that a longer airflow distance could lead to cooler thermal sensation, but not cause any difference in thermal comfort. Changing the fluctuating period of the sinusoidal airflow from 10 s to 60 s did not cause an influence on thermal sensation, but a shorter fluctuating period could result in a higher air movement perception. When dealing with thermal comfort issues, a joint effect with airflow speed and fluctuating period occurs and this should also be considered.
Persistent Identifierhttp://hdl.handle.net/10722/256004
ISSN
2017 Impact Factor: 1.158
2015 SCImago Journal Rankings: 0.522
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorXie, Yongxin-
dc.contributor.authorFu, Sauchung-
dc.contributor.authorWu, Chili-
dc.contributor.authorChao, Christopher Y.H.-
dc.date.accessioned2018-07-16T06:14:19Z-
dc.date.available2018-07-16T06:14:19Z-
dc.date.issued2018-
dc.identifier.citationIndoor and Built Environment, 2018, v. 27, n. 3, p. 317-330-
dc.identifier.issn1420-326X-
dc.identifier.urihttp://hdl.handle.net/10722/256004-
dc.description.abstract© 2016, © The Author(s) 2016. Since the concept of personalized ventilation was introduced in the late 1990s, many studies on thermal comfort have been conducted and a number of parameters identified. In this research, the influence of three parameters, the airflow speed, airflow fluctuating period and a parameter which has drawn less attention in previous studies – the airflow distance between the human subject and the nozzle of the personalized ventilation device on air movement perception, thermal sensation and thermal comfort – are studied. The combinations of fluctuating period and airflow amplitude were selected based on the Power Spectrum Density method. Then 25 human subjects participated in the thermal comfort experiment, each of them underwent 54 tests of different experimental conditions and expressed their thermal feelings by completing the survey questionnaire. Our findings showed that a longer airflow distance could lead to cooler thermal sensation, but not cause any difference in thermal comfort. Changing the fluctuating period of the sinusoidal airflow from 10 s to 60 s did not cause an influence on thermal sensation, but a shorter fluctuating period could result in a higher air movement perception. When dealing with thermal comfort issues, a joint effect with airflow speed and fluctuating period occurs and this should also be considered.-
dc.languageeng-
dc.relation.ispartofIndoor and Built Environment-
dc.subjectThermal comfort-
dc.subjectAirflow distance-
dc.subjectPersonalized ventilation-
dc.subjectFluctuating period-
dc.subjectThermal sensation-
dc.titleInfluence of sinusoidal airflow and airflow distance on human thermal response to a personalized ventilation system-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1177/1420326X16674064-
dc.identifier.scopuseid_2-s2.0-85043574558-
dc.identifier.volume27-
dc.identifier.issue3-
dc.identifier.spage317-
dc.identifier.epage330-
dc.identifier.eissn1423-0070-
dc.identifier.isiWOS:000429823000004-

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