A study on the thermal comfort in sleeping environments in the subtropics—Measuring the total insulation values for the bedding systems commonly used in the subtropics

Lin, Zhihong; Deng, Shiming

doi:10.1016/j.buildenv.2007.01.027

Cited by 133 publications

(64 citation statements)

References 7 publications

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“…However, because the ANSI/ASHRAE and ISO standards cannot be used to determine the total clothing insulation levels of people who are in bed, I clo of residents in bed were determined by coupling the data collected (i.e. body position, sleepwear, and bedding) with the most similar combination of beds, bedding and sleepwear provided in the paper published by Lin and Deng [38].…”

Section: Metabolic Rate and Total Clothing Insulationmentioning

confidence: 99%

Thermal perceptions, preferences and adaptive behaviours of occupants of nursing homes

Tartarini

Cooper

Fleming

2018

Building and Environment

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While the rapid increase in the fraction of people aged over 65 is driving a substantial increase in the number of people living in nursing homes, there has been very limited previous research carried out on how residents of nursing homes perceive their thermal environment and there is a lack of thermal comfort guidelines for the aged care sector. This article reports on a study to investigate thermal perceptions, preferences and adaptive behaviours of occupants in five nursing homes. Participants were asked to complete a questionnaire while local environmental parameters were monitored in their near proximity using portable equipment. Not all the facilities in the study provided a thermally comfortable environment for occupants at all times, and indoor air temperatures were found to range between 17.2 °C and 31.6 °C over the course of the study. As a result, participants adopted a range of adaptive behaviours to compensate for unsatisfactory thermal comfort conditions, such as adjustment of their clothing and the use of ceiling and portable fans in summer. Residents were more tolerant of temperature variations than staff or visitors and both the estimated neutral and preferred temperatures were higher for residents than for non-residents. The findings of this study are likely to have practical implications for all the stakeholders in the aged care sector. The results may also be used to inform the design of new facilities and the assessment of thermal comfort conditions in existing nursing homes.

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Section: Metabolic Rate and Total Clothing Insulationmentioning

confidence: 99%

Thermal perceptions, preferences and adaptive behaviours of occupants of nursing homes

Tartarini

Cooper

Fleming

2018

Building and Environment

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“…Electric resistance wires were used as heating elements and placed on the outer surface of the thermal manikin. Based on ASHRAE Standard 55 [17], and a previous related experimental study [18], heating flux values at different parts of the thermal manikin were determined, as shown in Table 2, making a total heating power input of 52.02 W, which remained unchanged in all experiments. Furthermore, CO 2 concentration distributions in the experimental bedroom were measured.…”

Section: Methodsmentioning

confidence: 99%

Thermal, ventilation and energy saving performance evaluations of a ductless bed-based task/ambient air conditioning (TAC) system

Mei

Pan

Deng

et al. 2013

Energy and Buildings

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“…For example, if the subject is unable to move and is placed in bed all the time, the total insulation has to take into consideration the effects of bed, blankets, quilts. In [14] and [15] a mathematical model has been proposed and validated in [23] for people in a bedding system. The total insulation is computed as a function of the thickness of the item (i.e.…”

Section: Considerations On Personal Parameters In Aal Applicationsmentioning

confidence: 99%

A Low-Cost Sensor for Real-Time Monitoring of Indoor Thermal Comfort for Ambient Assisted Living

Revel

Arnesano

Pietroni

2014

Ambient Assisted Living

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The present paper illustrates an innovative low cost solution for the monitoring of indoor thermal comfort by means of Predictive Mean Vote (PMV ) index for multiple positions. This is particularly interesting in an Ambient Assisted Living environment as replacement of typical thermostat used for the climate control. In fact, the system proposed considers also personal parameters, as metabolic rate (M) and clothing level (I cl ), instead of the merely environmental parameters. If this is important for normal living conditions, it becomes crucial in case of elderly people and long-term care patients where a reduction of M or I cl causes a high sensitivity to thermal conditions (especially for cold sensation), or where the disability does not allow the subject re-action (e.g. shading opening/closing when solar radiation occurs). The device proposed uses a set of low-cost non-contact sensors to determine, based on algorithms provided by ISO 7726 and 7730, Mean Radiant Temperature (MRT ) and PMV, which are provided as output of the device through wireless or wired connection. The capability of predicting thermal comfort conditions for multiple positions of the occupant in the room has been tested and validated in a real case study: it resulted in a discrepancy of ±0.5 • C in the MRT measurement and ±0.1 for the PMV with respect to a reference measurement system (microclimate station). The sensitivity to the metabolic rate and clothing level for AAL applications is also discussed together with a procedure for an estimation of these parameters. The accuracy achieved allows a better measurement of the real thermal sensation for a more comfortable environment with lower energy consumption.

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A study on the thermal comfort in sleeping environments in the subtropics—Measuring the total insulation values for the bedding systems commonly used in the subtropics

Cited by 133 publications

References 7 publications

Thermal perceptions, preferences and adaptive behaviours of occupants of nursing homes

Thermal perceptions, preferences and adaptive behaviours of occupants of nursing homes

Thermal, ventilation and energy saving performance evaluations of a ductless bed-based task/ambient air conditioning (TAC) system

A Low-Cost Sensor for Real-Time Monitoring of Indoor Thermal Comfort for Ambient Assisted Living

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