The purpose of this paper is to review the existing literature to draw an understanding of the relationship between indoor environmental quality and occupant productivity in an office environment. The study reviews over 300 papers from 67 journals, conference articles and books focusing on indoor environment, occupant comfort, productivity and green buildings. It limits its focus to the physical aspects of an office environment. The literature outlines eight Indoor Environmental Quality (IEQ) factors that influence occupant productivity in an office environment. It also discusses different physical parameters under each of the IEQ factors. It proposes a conceptual model of different factors affecting occupant productivity. The study also presents a review of the data collection methods utilised by the research studies that aim to investigate the relationship between IEQ and occupant productivity. The study presents a comprehensive discussion and analysis of different IEQ factors that affect occupant productivity. The paper provides a concise starting point for future researchers interested in the area of indoor environmental quality. Keywords: occupant productivity, workplace satisfaction, indoor environment quality, occupant comfortPaper type: Literature review
IntroductionHumans spend most of their time indoors, and the majority of the world's population lives in urban areas and work in an office environment (ASHRAE, 1993). There has been a significant global shift in the economy from the manufacturing sector towards the service and knowledge-based sectors which operate in indoor office environments (Haynes, 2008b, World Green Building Council, 2014. Hence, it is becoming important to understand the indoor office environment and the effect it has on occupant productivity. An office environment has a high level of influence on its occupants' productivity (Leaman and Bordass, 1999, Frontczak et al., 2012, Roelofsen, 2002, Mawson, 2002, Van der Voordt, 2004. Past studies on sustainable buildings postulate that green design strategies and technologies enhance the indoor workplace environment. Such strategies/technologies enable the creation of an environment which favours occupants' comfort and performance in both newly built and retrofitted buildings (Romm and Browning, 1994). The majority of the building stock that will exist in 2050 has already been built (2009). Thus, there is a need to investigate the quality of the indoor workplace environment and its relationship to occupant productivity. This paper establishes the state-of-the-art on environmental factors that influence occupant productivity in the office environment. It also highlights and discusses various occupant productivity measurement methods used in indoor environment research studies. This research will help construction industry professionals improve the designs that allow better operation of office buildings along with improving the productivity of the occupants.
BackgroundThe research on the direct and indirect effects of indoor environ...
The concept of bioclimatic design is based on the development of an architectural design adapted to environmental conditions. The utilization of the favourable climatic elements can offer to the users, indoor thermal comfort conditions and at the same time it minimizes the energy consumption which is needed for heating and cooling. This paper provides the bioclimatic analysis for three different climatic zones in Cyprus, coastal, inland and mountainous. The building bioclimatic charts of V. & A. Olgyay are used to examine whether passive strategies can provide indoor thermal comfort in the buildings in these zones. The results of bioclimatic charts are studied in conjunction with the climatic data for the three climatic areas. These are compared and investigated in order to find whether there is sufficient amount of solar radiation for passive heating needed to achieve thermal comfort during winter. The study concludes to a preliminary guide of passive design strategies for buildings, as an outcome of the bioclimatic charts analysis for coastal, inland and mountainous zones in Cyprus. The results can be used for locations with similar climatic conditions.
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