Publication

Results from the monitoring of indoor environment and occupant perceived productivity in office buildings

Darren Robinson, Frédéric Haldi
2010
Conference Papers

Abstract

Based on almost 18 months of continuous direct measurements coupled with an electronic questionnaire, we have analysed the influence of indoor temperature and illuminance, outdoor climate parameters, thermal and visual sensation, clothing and season on the perceived productivity of office occupants. Using linear regression analysis, we have identified which of these variables have a significant influence on perceived productivity. From this we noticed that the observed variance in productivity is best expressed by either extreme or aggregated values of our driving variables (including indoor and outdoor temperature or thermal sensation), rather than by instantaneous stimuli. Our analysis also suggests that under warm conditions perceived productivity decreases by around of 10% compared to relatively cooler conditions. An assessment of the existence of a conjugate impact of these variables is also provided.

Official source

https://infoscience.epfl.ch/entities/publication/826ba5b6-a17c-4fd3-aef0-2a822c6a2a9a

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Darren Robinson, Frédéric Haldi
2010
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/826ba5b6-a17c-4fd3-aef0-2a822c6a2a9a

About this result

Related concepts (17)

Thermal comfort

Thermal comfort is the condition of mind that expresses satisfaction with the thermal environment and is assessed by subjective evaluation (ANSI/ASHRAE Standard 55). The human body can be viewed as a heat engine where food is the input energy. The human body will release excess heat into the environment, so the body can continue to operate. The heat transfer is proportional to temperature difference. In cold environments, the body loses more heat to the environment and in hot environments the body does not release enough heat.

Indoor air quality

Indoor air quality (IAQ) is the air quality within and around buildings and structures. IAQ is known to affect the health, comfort, and well-being of building occupants. Poor indoor air quality has been linked to sick building syndrome, reduced productivity, and impaired learning in schools. Common pollutants of indoor air include: secondhand tobacco smoke, air pollutants from indoor combustion, radon, molds and other allergens, carbon monoxide, volatile organic compounds, legionella and other bacteria, asbestos fibers, carbon dioxide, ozone and particulates.

Building science

Building science is the science and technology-driven collection of knowledge in order to provide better indoor environmental quality (IEQ), energy-efficient built environments, and occupant comfort and satisfaction. Building physics, architectural science, and applied physics are terms used for the knowledge domain that overlaps with building science. In building science, the methods used in natural and hard sciences are widely applied, which may include controlled and quasi-experiments, randomized control, physical measurements, remote sensing, and simulations.

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