IEQ

In this paper various direct reading instruments and techniques used in air monitoring are reviewed. Principles of operation are described, pointing out advantages and disadvantages of using such instruments. A procedure for inspection activities, and a sampling and analysis approach is outlined. One case study, covering inspection in an office space is presented in detail, describing monitoring of different types of contaminants, possible false positives and calculations related to exposure limits.

The present study investigates acoustic comfort in naturally ventilated residential buildings through an indoor soundscape approach. Preliminary results from a laboratory listening test are presented, where, in a mock-up living room with a window sight, participants have been exposed to 20 acoustic scenarios, obtained as a combination of 4 indoor sound sources and 5 outdoor urban environments filtered through a window ajar. Participants were asked to rate each exposure condition.

Green buildings incorporate several features to improve energy efficiency, indoor environmental conditions, and occupant satisfaction. However, studies have indicated that green-certified buildings do not always provide occupants with an acceptable level of satisfaction. The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) requires that at least 80% of occupants are satisfied with the indoor thermal conditions.

Hospitals’ indoor environmental quality (IEQ) impacts on patients’ comfort and well-being. Relationships between IEQ indicators and people’s assessment are often investigated by examining the main IEQ parameters – thermal, visual, and acoustical comfort and indoor air quality – separately. People’s assessment is multi-sensory and balances the positive sensations against the negative. To estimate it, IEQ models aggregate data from sensor measurements and/or surveys, expressing parameters’ relative importance through regression coefficients.

The discomfort prediction inside buildings by means of correlations able to estimate people subjective response from indoor conditions has been widely investigated with the purpose of supporting design, commissioning and operation of buildings. Technical standards have been developed based on these findings, suggesting or prescribing acceptability ranges for the different environmental quantities involved mainly in single comfort aspects.

The Book of Proceedings of the 42^nd AIVC - 10^th TightVent - 8^th venticool Conference: "Ventilation Challenges in a Changing World" held in Rotterdam, Netherlands on 5-6 October 2022

The Presentations at the 42^nd AIVC - 10^th TightVent - 8^th venticool Conference: "Ventilation Challenges in a Changing World" held in Rotterdam, Netherlands on 5-6 October 2022

The TAIL scheme was developed to rate buildings' indoor environmental quality (IEQ). The scheme was developed to assure that occupants' health and well-being are not compromised during deep energy renovation (DER) of office buildings and hotels, but it is expected that TAIL can also be used as a general rating scheme of IEQ in any building. TAIL combines the quality of Thermal, Acoustic and Luminous environment and Indoor air quality to determine the overall quality of the indoor environment.