scholarly journals Effect of Thermal, Acoustic and Air Quality Perception Interactions on the Comfort and Satisfaction of People in Office Buildings

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 333
Author(s):  
Leonidas Bourikas ◽  
Stephanie Gauthier ◽  
Nicholas Khor Song En ◽  
Peiyao Xiong
Keyword(s):  
Air Quality ◽  
Thermal Sensation ◽  
Office Buildings ◽  
Indoor Environmental Quality ◽  
Quality Factors ◽  
Quality Perception ◽  
Post Occupancy Evaluation ◽  
Comfort Perception ◽  
Acoustic Comfort ◽  
Contextual Interactions

Current research on human comfort has identified a gap in the investigation of multi-domain perception interactions. There is a lack of understanding the interrelationships of different physio-socio-psychological factors and the manifestation of their contextual interactions into cross-modal comfort perception. In that direction, this study used data from a post occupancy evaluation survey (n = 26), two longitudinal comfort studies (n = 1079 and n = 52) and concurrent measurements of indoor environmental quality factors (one building) to assess the effect of thermal, acoustic and air quality perception interactions on comfort and satisfaction of occupants in three mixed-mode university office buildings. The study concluded that thermal sensation (TSV) is associated with both air quality (ASV) and noise perception (NSV). The crossed effect of the interaction of air quality and noise perception on thermal sensation was not evident. The key finding was the significant correlation of operative temperature (Top) with TSV as expected, but also with noise perception and overall acoustic comfort. Regarding the crossed main effects on thermal sensation, a significant effect was found for the interactions of (1) Top and (2) sound pressure levels (SPL30) with air quality perception respectively. Most importantly, this study has highlighted the importance of air quality perception in achieving occupants’ comfort and satisfaction with office space.

POST-OCCUPANCY EVALUATION (POE) OF CONVENTIONAL-DESIGNED BUILDINGS: THE EFFECTS OF OCCUAPNTS’ COMFORT ON PRODUCTIVITY

2015 ◽  
Vol 75 (1) ◽  
Author(s):  
Farid-Wajdi Akashah ◽  
Azlan Shah Ali ◽  
Siti Fatunah Mohd Zahari
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Environmental Quality ◽  
Indoor Air ◽  
Work Performance ◽  
Comfort Level ◽  
Indoor Environmental Quality ◽  
Post Occupancy Evaluation ◽  
Health And Wellbeing ◽  
Spss Software

POE is important to evaluate comfort level and satisfaction of building occupants because it indicates their productivity, health, and wellbeing. It is absolutely necessary to ensure building occupants are comfortable and satisfied about buildings’ indoor environmental quality (IEQ). Productivity may be interrupted due to building occupants’ discomfort, which affect their work performance. This study presents the how comfort and satisfaction affects the occupants’ productivity in conventional-designed buildings. Five office buildings located in University of Malaya were selected as the case studies. 278 questionnaires feedbacks found to be useful to form a database on the IEQ. Data obtained were analyzed using SPSS software. The findings shows that majority of the respondents in conventional-designed building were slightly comfortable and satisfied about their IEQ comfort level which were indoor air quality, thermal, lighting, and noise comforts. Although, the design of conventional buildings did not taking into account on sustainability designing, it still functionally well and provided comfort which leads to increasing of employees productivity. The associative test showed significant correlation between illness symptom and IEQ components. Admin buildings had more noticeable illness symptoms in contrast with Faculty buildings. It could be concluded that building occupants’ productivity were least affected by the conventional-design building.  

Indoor environmental quality assessment: Part 1: Choice of the indoor environmental quality sub-component models

2017 ◽  
Vol 41 (3) ◽  
pp. 264-289 ◽  
Author(s):  
Michał Piasecki ◽  
Krystyna Kostyrko ◽  
Sławomir Pykacz
Keyword(s):  
Environmental Quality ◽  
Indoor Air ◽  
Indoor Environment ◽  
Energy Performance ◽  
Indoor Environmental Quality ◽  
Quality Model ◽  
Metrological Analysis ◽  
Environmental Quality Assessment ◽  
Comfort Perception ◽  
Acoustic Comfort

Indoor environment quality is a relative measure of comfort perception by people exposed to the indoor conditions. It is expected that any assessment of energy performance should also include indoor comfort. This study is to review indoor environmental quality models (with respect to thermal and acoustic comfort, indoor air and lighting quality). A simplified indoor environmental quality model is also developed with consideration of EN 15251 draft ‘Guideline for using indoor environmental input parameters for the design and assessment of energy performance of buildings’. This article analyses what components should be modelled and in particular discusses the effect of different weighting schemes on the overall indoor environmental quality index. The analysis includes thermal comfort models, indoor air quality, acoustic comfort and daylight illumination versus lightning. The proposed indoor environmental quality component sub-models will give the most reliable results when the model indoor environment input data are correctly measured and disturbing influences of indoor environmental quality monitoring process are well defined and properly assessed. The final indoor environmental quality result is based on subjoining the uncertainty values achieved in panel analysis of percentage of persons dissatisfied with indoor environmental quality with corrected measurement uncertainty. All simulations for IEQindex sub-components and preliminary metrological analysis of the whole indoor environmental quality model were performed with the NIST program for Monte Carlo tests. The presented indoor environmental quality model proposal is developed to support engineers’ practice as the convenient tool for a practical assessment of building’s occupational satisfaction.

scholarly journals Post-Occupancy Evaluation of Indoor Environmental Quality in a nZEB sport hall in a Mediterranean climate.

2019 ◽  
Vol 111 ◽  
pp. 02048
Author(s):  
Joana Ortiz ◽  
Maria L. Gonzalez Matterson ◽  
Paolo Taddeo ◽  
Jaume Salom
Keyword(s):  
Air Quality ◽  
Thermal Comfort ◽  
Mediterranean Climate ◽  
Indoor Environmental Quality ◽  
Visual Comfort ◽  
Monitoring Campaign ◽  
Post Occupancy Evaluation ◽  
Comfort Evaluation ◽  
Two Phases ◽  
Comfort Parameters

The aim of the present work is to evaluate the environmental comfort of the users of a new nZEB sport hall located in Tarragona, Spain, through a Post Occupancy Evaluation. The study is composed by two phases of measurements where the visual comfort, the thermal comfort and the air quality are evaluated. The first monitoring campaign is focused on a detailed visual comfort evaluation under daylight conditions, done on July 28th, 2017. The second monitoring campaign is focused on the thermal comfort and the air quality and was performed during the Mediterranean Olympic Games from June 19th to July 1st of 2018. Moreover, around 140 of surveys are done to the audience to compare the calculated comfort parameters with the perception of the users. The results of the Post Occupancy Evaluation are satisfactory, obtaining good comfort indexes and demonstrating a good perception by the users.

scholarly journals Post-Occupancy Evaluation and IEQ Measurements from 64 Office Buildings: Critical Factors and Thresholds for User Satisfaction on Thermal Quality

Buildings ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 156 ◽  
Author(s):  
Jihyun Park ◽  
Vivian Loftness ◽  
Azizan Aziz
Keyword(s):  
User Satisfaction ◽  
Assessment Method ◽  
Multiple Correlation Coefficient ◽  
Office Buildings ◽  
Quality Level ◽  
Indoor Environmental Quality ◽  
Critical Factors ◽  
Post Occupancy Evaluation ◽  
Building Systems ◽  
Radiant Temperature

The indoor environmental quality (IEQ) of buildings can have a strong influence on occupants’ comfort, productivity, and health. Post-occupancy evaluation (POE) is necessary in assessing the IEQ of the built environment, and it typically relies on the subjective surveys of thermal quality, air quality, visual quality, and acoustic quality. In this research, we expanded POE to include both objective IEQ measurements and the technical attributes of building systems (TABS) that may affect indoor environment and user satisfaction. The suite of three tools, including user satisfaction survey, workstation IEQ measurements, and TABS in the National Environmental Assessment Toolkit (NEAT) has been deployed in 1601 workstations in 64 office buildings, generating a rich database for statistical evaluation of possible correlations between the physical attributes of workstations, environmental conditions, and user satisfaction. Multivariate regression and multiple correlation coefficient statistical analysis revealed the relationship between measured and perceived IEQ indices, interdependencies between IEQ indices, and other satisfaction variables of significance. The results showed that overall, 55% of occupants responded as “satisfied” or “neutral”, and 45% reported being “dissatisfied” in their thermal quality. Given the dataset, air temperature in work area, size of thermal zone, window quality, level of temperature control, and radiant temperature asymmetry with façade are the critical factors for thermal quality satisfaction in the field. As a result, the outcome of this research contributes to identifying correlations between occupant satisfaction, measured data, and technical attributes of building systems. The presented integrated IEQ assessment method can further afford robust predictions of building performance against metrics and guidelines for IEQ standards to capture revised IEQ thresholds that impact building occupants’ satisfaction.

scholarly journals Occupants’ Interaction With an Occupant Voting System for Thermal and Indoor Air Quality Feedback – Case Studies in Office Spaces

2021 ◽  
Vol 7 ◽  
Author(s):  
Donya Sheikh Khan ◽  
Jakub Kolarik ◽  
Peter Weitzmann
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Case Studies ◽  
Indoor Air ◽  
Thermal Environment ◽  
Office Buildings ◽  
Indoor Environmental Quality ◽  
Quality Feedback ◽  
The Impact

Occupants can provide valuable feedback on the indoor environmental quality of buildings. Research on occupant voting systems (OVS) has demonstrated that apps or electronic devices can act as viable tools for collecting long-term feedback from occupants. However, previous research has only to a limited extent explored occupants’ interaction with OVS and the impact it might have on the reliability of the collected feedback. The present paper presents three case studies on applying a tangible OVS, denoted TiAQ, to collect feedback on thermal and indoor air quality (IAQ) in office spaces. The main objective of the present study was first to explore occupants’ interaction with TiAQ and their motivation. Second, identifying whether feedback collected with TiAQ could represent occupants’ comfort and discomfort with the thermal environment and IAQ. Thirdly, identifying challenges related to occupants’ interaction with TiAQ that might affect the representativeness of collected feedback. The present study was conducted at three office buildings in up to 7 months and demonstrated that TiAQ was suitable for collecting long-term feedback on occupants’ comfort and discomfort with the thermal environment. On average, one vote was cast per day per occupant. Additionally, in one of the office buildings, 60% of occupants reported to have interacted with TiAQ daily or weekly when, e.g., passing the device going to/from the office spaces. Occupants’ expectations of TiAQ and getting “feedback on feedback” need to be further addressed to identify ways to sustain occupants’ long-term use of the device and reduce “ill-willed” interactions.

130. Indoor Environmental Quality in Six Commercial Office Buildings in the Midwest United States

1999 ◽  
Author(s):  
S. Reynolds ◽  
P. Subramanian ◽  
G. Breuer ◽  
M. Stein ◽  
D. Black ◽  
...  
Keyword(s):  
United States ◽  
Environmental Quality ◽  
Office Buildings ◽  
Indoor Environmental Quality ◽  
Midwest United States
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