Effect of abrupt exposure to outdoor heat on humans accustomed to air conditioning

Liao, Carol J.; I, Cech

doi:10.1016/0304-4009(77)90003-1

Cited by 6 publications

(2 citation statements)

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“…Furthermore, there are concerns that the widespread use of air-conditioning may reduce the ability of a population to acclimatise to hot weather. Liao and Cech (1977) reported that people residing in Houston, Texas, with a mid-day outdoor temperature of 37–38°C during the summer, had adequately acclimatised to cool indoor conditions (i.e. approximately 20–22°C).…”

Section: Introductionmentioning

confidence: 99%

Sensory and physiological assessment of spatial transient thermal environment changes at a tropical university campus

Dahlan

Ghaffarianhoseini

Hassan

2020

SASBE

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PurposeRecent studies have found that the high demand for air-conditioning usage in tropical countries has affected the thermal adaptability of building occupants to hot weather, and increased building energy consumption. This pilot study aims to investigate the effects of transient thermal environment changes on participants' sensory and physiological responses.Design/methodology/approachThe change of thermal perceptions, skin temperatures and core temperatures when exposed to transient thermal environments (cool-warm-cool) from 10 college-aged female participants during a simulated daily commute by foot to class in a tropical university campus were investigated. Subjective measurements were collected in real-time every 5 min.FindingsThe main finding suggests that participants were acclimatised to cool air-conditioned indoor environments, despite exhibiting significant mean skin temperature differences (p < 0.05). In addition, exposure to uniform air conditioning from 17 to 18°C for 20 min was thermally unacceptable and reduced concentration during given tasks.Research limitations/implicationsThe study focused on thermal comfort conditions in a uniform air-conditioned lecture hall, and the findings may not be applicable for residential and other private building spaces. The distinct temperature difference between indoor and outdoor in the tropical built environment resulted in high dependence on air-conditioning usage. The building occupants' well-being and energy conservation implications of the findings are discussed.Practical implicationsThis study provides the platform for discussion on the dynamics of occupants' comfort level and adopting a more variable thermal environment in tropical spatial transient thermal environments among architects and building management system managers. The findings from this study may contribute to the Malaysian Standards for Energy Efficiency and Use of Renewable Energy for Non-Residential Buildings (MS1525).Originality/valueA knowledge gap in adaptive thermal comfort due to exposure from transient conditions in tropical university campus for energy efficiency revision has been investigated.

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Section: Introductionmentioning

confidence: 99%

Sensory and physiological assessment of spatial transient thermal environment changes at a tropical university campus

Dahlan

Ghaffarianhoseini

Hassan

2020

SASBE

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“…Une explication de ce phénomène peut être trouvée dans le fait que TRIM dans sa phase actuelle ne tient aucun compte du passé thermique de l'individu : les sensations sont liées aux températures du même pas de temps. Or, le passé thermique du sujet jouerait un rôle important, comme l'indiquent certaines expériences (GLICKMAN et al, 1947;LIAO et CECH, 1976;GRIVEL et al1989) Par exemple, en termes de sensations, le pied est le plus chaud en conditions ambiantes chaudes, tandis qu'en termes de températures, il se place au milieu du classement. De même, la tête, qui a constament la température la plus élevée, est situé vers le "chaud" du classement en ambiance froide et vers le "froid" en ambiance chaude.…”

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La Sensation Thermique De l'HOMME Dans Son Habitat: Des Grandeurs Physiques Et Physiologiques Aux Sensations

Galeou¹

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Energy use in Hong Kong: Part IV. Socioeconomic distribution, patterns of personal energy use, and the energy slave syndrome

Newcombe

1979

Urban Ecology

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Effect of abrupt exposure to outdoor heat on humans accustomed to air conditioning

Cited by 6 publications

References 16 publications

Sensory and physiological assessment of spatial transient thermal environment changes at a tropical university campus

Sensory and physiological assessment of spatial transient thermal environment changes at a tropical university campus

La Sensation Thermique De l'HOMME Dans Son Habitat: Des Grandeurs Physiques Et Physiologiques Aux Sensations

Energy use in Hong Kong: Part IV. Socioeconomic distribution, patterns of personal energy use, and the energy slave syndrome

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