English

On average, a higher educational student spends 3-8 years inside an institutional building during their studies, where they tend to stay with large groups of students in confined environments for longer durations. Improper design standards and occupant control in lecture halls can result in poor Indoor Environmental Quality (IEQ), which can lead to health issues such as Sick Building Syndrome (SBS).

In recent years, emphasis has been placed on improving workplace productivity. Workplace productivity is defined as “results of workplace activities for investment”. The investments mean indoor environment equipment costs, maintenance costs, and equipment costs. On the other hand, the workplace activities required mean understanding knowledge and information and using them correctly, and realizing new ideas and them. Also, it is expected that the Learning efficiency would be improved by improving the thermal environment of the education site.

When an infant is born, he or she begins independently breathing for the first time, meaning that immediately his or her lungs start becoming a principal interface between the outside air and the organism being considerably and continuously influenced by the Indoor Air Quality (IAQ). Daycare centers (DCCs) or early life educational institutions, the first program for the social development of young children (generally aged 0-5 years old), are the most important place besides their home.

Clean air heat pump (CAHP) is a new technology that combines air cleaning with hygro-thermal control of ventilation air. In CAHP, a regenerative desiccant wheel is used for moisture control and air cleaning. This study investigated experimentally the air cleaning performance of CAHP system for ammonia removal. The results showed that, as opposed to the operating parameters of CAHP system for Volatile Organic Compounds (VOCs) removal, ammonia could not be continuously removed when the wheel was regenerated by low-temperature thermal energy.

As more buildings are connected to cloud-based large data systems, there is an opportunity to learn from the data. Predictive load and energy modeling calculations, which have long been performed based on assumptions, can be validated, or adjusted based on accrued data from in-service buildings.
This paper publishes zone sensible cooling loads, based on historical data. The results should serve as a guideline to cooling load and energy modeling calculations in future designs.

Health Canada, a science-based organization, is the Government of Canada’s federal department responsible for maintaining and improving the health of Canadians. As Canadians spend on average 90% of their time indoors, indoor air quality is an important environmental determinant of health.

Ventilation systems are designed based on the air flow volume required to ventilate the room, the same applies to façade-integrated ventilation devices operating in alternating mode, also referred to as push-pull devices. Those rather small devices represent a simple way to provide fresh air and air-to- air heat recovery for residential dwellings. The present research aims to analyse the ventilation effectiveness of push-pull devices experimentally. Hence, a tracer gas analysis is performed in a residential building.

In school and office buildings, the ventilation system has a large contribution to the total energy use. A control strategy that adjusts the operation to the actual demand can significantly reduce the energy use while guaranteeing a good indoor environmental quality (IEQ). This is important in rooms with a highly fluctuating occupancy profile, such as classrooms and open offices. A standard rule-based control (RBC) strategy is reactive, making the installation 'lag behind' in relation to the demand.

The relation between the concentration and particle size of the human breathing and the way in which these particles are dispersed in hospital indoor environments are studied in this research. Breathing thermal manikins are used to, experimentally, simulate a human person and its breathing activity. Two breathing thermal manikins are placed in a hospital room, simulating an infected patient, together with another standing manikin simulating a health worker.

Particulate matter (PM) is one of the most critical pollutants affecting indoor air quality (IAQ). Hence, reducing the exposure of occupants to indoor PM pollution is critical. Ventilation systems for commercial and residential buildings are instrumental for achieving this goal.