Interior daylight environment of an elderly nursing home in Beijing

Yang, Hui; Guo, Bin; Shi, Yanzhuo; Jia, Chen; Li, Xiaoyan; Liu, Fang

doi:10.1016/j.buildenv.2021.107915

Cited by 18 publications

(6 citation statements)

References 15 publications

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“…The occupants' level of visual discomfort relative to their view path and daylight sources (windows), as expressed by DGI, is another critical glare parameter associated with vertical daylighting not considered in the study. Regarding accuracy and generalisation of the findings, the research is limited to simulated data based on a satellite weather file, although the adopted approach and software application have been validated by existing studies [34,50]. It is worth noting that simulation, as adopted in this research, is not a replacement for actual data measurement for existing buildings but was chosen due to a lack of instrumentation for whole-building measurements of this magnitude.…”

Section: Limitations and Recommendationsmentioning

confidence: 99%

Daylighting Assessment of a Heritage Place of Instruction and Office Building in Alice, South Africa

Overen,

Meyer,

Makaka

2023

Buildings

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Mitigation of post-occupancy building energy consumption has resulted in the change of building design to utilise ambient weather factors for indoor thermal conditioning and lighting. This has increased the construction of new buildings with large glazing façades and reduced adaptive use of heritage buildings as they are considered not designed to meet modern energy use requirements. This paper evaluates the daylighting performance of a heritage place of instruction and office building. A quantitative research approach based on building information simulation tools was adopted. Autodesk Revit 2021 and Integrated Environmental Solutions Virtual Environment (IESVE) 2021 were used in modelling and simulating the building daylighting performances. The building’s annual daylight performance analysed with climate-based daylight modelling shows that points in the analysed spaces were within the UDI300-2000 for more than 50% of the occupied period (07h00 to 17h00) in a year. The sDA300,50% was found to be 100% in most spaces, which is considered a favourable daylit space according to the Illuminance Engineering Society of North America (IESNA). Further, discomfort glare analysis revealed that the building daylight glare is imperceptible, with an average daylight glare probability of 21.2%. The 1:14 window–wall ratio contributes to the building daylighting relative to orientation without constituting visual discomfort. Overall, climate-based daylight modelling revealed that the building’s annual daylight level meets the IESNA requirements with an imperceptible daylight glare.

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Section: Limitations and Recommendationsmentioning

confidence: 99%

Daylighting Assessment of a Heritage Place of Instruction and Office Building in Alice, South Africa

Overen,

Meyer,

Makaka

2023

Buildings

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“…Covariates were applied in terms of two dimensions: housing and living conditions and demographic and socioeconomic information. The measure of perceived housing environment in respondents' homes comprised five domains (25 items): noise (four items) [61,62], lighting and view (five items) [63,64], temperature and humidity (eight items) [65,66], air quality (five items) [67], and maintenance and cleanliness (three items) [68]. Developed by the authors, this instrument tested the psychological perception of the indoor physical environment among this study's respondents.…”

Section: Research Design and Measuresmentioning

confidence: 99%

The Association between Perceived Housing Environment and Health and Satisfaction among the Older Adults during the COVID-19 Pandemic: A Cross-Sectional Survey in Northern China

Liu,

Li,

Gao

et al. 2023

Buildings

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China lacks design strategies to improve home-based care environments for its older adults. This study investigated the perception of indoor environmental quality in housing environments and analyzed its impact on health and satisfaction among home-living older adults. A cross-sectional survey in Northern China was conducted during the COVID-19 pandemic (October 2021–March 2022) to test the effects of five housing environmental factors on home-living older adults’ health and satisfaction, including noise, lighting and view, temperature and humidity, air quality, and maintenance and cleanliness. A total of 356 home-living adults aged 60 years and older participated in the survey. The 12-item Short Form Health Survey was used to measure health-related quality of life among respondents. Using multiple regression analyses, we found that overall satisfaction can be positively predicted by four housing environmental qualities: lighting and view, temperature and humidity, air quality, and maintenance and cleanliness. Air quality was found to be a predictor of respondents’ physical health. Only noise had a significant predictive effect on respondents’ mental health. Age, marital status, and health status (cardiovascular and chronic diseases) were significantly correlated with the physical health of the respondents, whereas educational status, monthly income, and alcohol consumption could predict their mental health.

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“…Lighting with a short-wavelength spectrum improved reading fluency performance [46], concentration [47] and cognitive processing speed [48]. Lighting that varies in CCT and illuminance increased the attention and reading speed of elementary and high school students [49] and the performance of different tasks in nursing homes [50]. Lighting has been evaluated in these terms in contexts other than academia, and there is evidence of the influence of high CCT on improving fatigue, alertness, daytime sleepiness, and work routines [51] and on alertness, mood, daytime sleepiness, evening fatigue, and work tasks [52,53].…”

Section: Melanopic Lighting From Artificial Lighting and Daylightmentioning

confidence: 99%

Analysis of Photopic and Melanopic Lighting in Teaching Environments

et al. 2021

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Daylight and lighting seem to be a key tool for people’s well-being, however, there are no specific and agreed recommendations that address both photopic and melanopic aspects in educational environments. The present work analyzed melanopic light in four teaching environments considering photopic indoor lighting, daylight depending on the window orientation, location of the observer in the room, and their line of view. The façade direction, daylight at 11.00 a.m. for six months from October to March, and the characteristics of each classroom, such as reflectance of the surfaces, location of the luminaires and their spectral and spatial power distributions, or calculation points affecting the melanopic light reaching the corneal vertical plane of a hypothetical control observer were studied. For this evaluation, classrooms were experimentally treated and simulated using DialuxEvo software, and the computer-generated values resembled the experimental values. Once the study was performed, an improvement proposal, based on LED lighting, was made to optimize the classroom lighting considering the melanopic requirements, which we ensured that users who passed through these classrooms had an adequate amount light at any time of the day. Our results simplify to the greatest lighting projects and enable designers to carry out optimized evaluations of specific environments from both the photometric and circadian perspectives.

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Interior daylight environment of an elderly nursing home in Beijing

Cited by 18 publications

References 15 publications

Daylighting Assessment of a Heritage Place of Instruction and Office Building in Alice, South Africa

Daylighting Assessment of a Heritage Place of Instruction and Office Building in Alice, South Africa

The Association between Perceived Housing Environment and Health and Satisfaction among the Older Adults during the COVID-19 Pandemic: A Cross-Sectional Survey in Northern China

Analysis of Photopic and Melanopic Lighting in Teaching Environments

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