Author: Wang, Lyubing
Title: Use of immersive virtual environment for collecting occupant preference, understanding the impact of wall luminance and uniformity on preferred task illuminance
Advisors: Cha, Seung Hyun (BSE)
Degree: M.Eng.
Year: 2018
Subject: Hong Kong Polytechnic University -- Dissertations
Buildings -- Energy consumption
Buildings -- Energy conservation
Department: Department of Building Services Engineering
Pages: viii, 60 pages : color illustrations
Language: English
Abstract: Studies have shown that occupant behaviour is a major factor to affect buildings' energy consumption and overall performance. Meanwhile, as a consequence of recent technological advancements in the field of virtual reality, literatures stated that Immersive Virtual Environments (IVEs) could provide occupants a sense of presence that similar in physical environments. Thus, the author's research vision builds upon the potential of using IVEs to collect occupants' behaviour information. As the first step of this goal, it is imperative to test whether that behaviour information collected in IVEs represent such behaviour in physical environments. This thesis presents an IVE-based experiment that collect user's task illuminance preference on a set of wall conditions with a non-uniform and a more uniform light distribution of three different average luminance levels; it is based on a previous study which the collection of participants' behaviour data (preference) was conducted in a physical mock-up environment. The sense of presence in IVE is also measured through a set of questionnaires. By analysing the preference data from 11 participants and comparing such information with the prototype experiment, the author found that this specific lighting environment preference performed similarly in the IVE and physical environment. The questionnaire data also show that the participants could feel the sense of presence within an IVE. Hence, the author suggested that IVEs could be an adequate representation of physical environments to collect occupants' lighting preference. However, due to the limitations of time and costs; the sample size should be increased for the future experiment through a proper power analysis. More researches are needed to confirm that using IVEs are adequate qualified to examine substantial occupants' behaviour in various situations (e.g., spatial configuration alterations, material or colour variation), which could expand the application of IVEs in practical building systems design.
Rights: All rights reserved
Access: restricted access

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