An experimental study of the effect of different starting room temperatures on occupant comfort in Danish summer weather

Bourdakis, Eleftherios; Simone, Angela; Olesen, Bjarne W.

doi:10.1016/j.buildenv.2018.03.046

Cited by 19 publications

(10 citation statements)

References 26 publications

(26 reference statements)

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“…Occupants may have experienced a cold thermal sensation during their commuting time early in the morning, which changed along the day. This result is in agreement with the study of Bourdakis et al [34], which showed that the preferred temperatures of occupants were lower after commuting to work due to higher metabolic activity levels. This suggests that there is a short-term physiological adaptation process when people arrive at their work place in the morning that should be taken into account in thermal comfort assessments.…”

Section: Discussionsupporting

confidence: 93%

Thermal adaptation in occupant-driven HVAC control

Aguilera

Kazanci

Toftum

2019

Journal of Building Engineering

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Section: Discussionsupporting

confidence: 93%

Thermal adaptation in occupant-driven HVAC control

Aguilera

Kazanci

Toftum

2019

Journal of Building Engineering

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“…However, the temperature in their study remained the same so that thecombined effect of temperature and metabolic rate transients was not explored. Recently, several other studies [19][20][21][22][23][24] have examined thermal transients induced by both temperature and metabolic rate, but they focused on effective ways to alleviate thermal discomfort induced by exercise in the heat, rather than investigating the underlying mechanism of human thermal responses under such conditions.…”

Section: Wet Skin Wettednessmentioning

confidence: 99%

Transient human thermophysiological and comfort responses indoors after simulated summer commutes

Zhai

Zhao

Yang

et al. 2019

Building and Environment

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The current study investigates the transient human physiological and comfort responses during sedentary activity following a period of elevated activity in a hot condition. Such metabolic and thermal down-steps are common in buildings as occupants arrive after commuting in summer. It creates a serious problem for thermostatic control, since arriving occupants find their transition uncomfortably warm at temperatures that resident occupants find comfortable. Fifty-nine participants (29 men, 30 women) dressed in 0.6 clo were tested while sedentary for 60 min in 26 °C, after having been exposed to 30 °C for 15min, during which they performed activities metabolically simulating commuting: sitting (SE-1.2 met), or doing three levels of stair-step exercises: low (LEx-2.2 met), medium (MEx-3.0 met), and high (HEx-4.4 met). Subjective comfort and physiological responses (metabolic rate, skin temperature, skin blood flow rate, heart rate, core temperature, and skin wettedness) were collected. Results show that sedentary conditions at 26°C became comfortable and acceptable within 2 min, but thermal sensation required much longer to change from 'warm' or 'hot' to 'neutral': 0, 8, 17, 30 min after SE, LEx, MEx, HEx respectively. Skin wettedness and core temperature did not recover within the60 min. The delays are mainly due to body heat stored during the exercise. A room temperature of 26°C may not provide sufficient cooling after summer commuting. Localized convective cooling of transitional spaces and work areas by ceiling or desk fans represent a way to enhance comfort recovery.

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“…The sample frame consists of 76 valid questionnaires comprising 30 bank staffers and 46 worshipers. Recent studies [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] have documented the negative effects of sick building syndrome on human health across climes. The survey instrument was administered by hand and consists of four parts.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Survey datasets on sick building syndrome: Causes and effects on selected public buildings in Lagos, Nigeria

et al. 2018

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This dataset focuses on the causes and effects of sick building syndrome among users of selected facilities in Lagos. A mixed research approach of field measurement and cross-sectional survey was adopted. Descriptive statistics were implemented on the data acquired and are reported on tables and figures. The significance of this data leverages on providing insight and consciousness of sick building syndrome to users and occupants of constructed facilities. The survey dataset when analyzed can show direction on physical quantities levels that can be experienced in public buildings in tropical region.

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An experimental study of the effect of different starting room temperatures on occupant comfort in Danish summer weather

Cited by 19 publications

References 26 publications

Thermal adaptation in occupant-driven HVAC control

Thermal adaptation in occupant-driven HVAC control

Transient human thermophysiological and comfort responses indoors after simulated summer commutes

Survey datasets on sick building syndrome: Causes and effects on selected public buildings in Lagos, Nigeria

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