The conference "IAQ 2020: Indoor Environmental Quality Performance Approaches Transitioning from IAQ to IEQ”, organized by ASHRAE and AIVC, was held in Athens, Greece on 4-6 May 2022. The conference was also the 41st AIVC - 9th TightVent & 7th venticool conference. This collection contains 110 conference papers and 16 extended abstracts.

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The means for keeping the indoor relative humidity (RH) and pollutant concentration below a threshold level of interests are necessary and essential to improving building performance in terms of indoor air quality (IAQ), energy
Anh Dung Tran Le, Jianshun S Zhang, Zhenlei Liu, Driss Samri Thierry Langlet
New types of low-cost sensors have the potential to replace existing sensor networks in buildings, which have high cost and low flexibility in terms of monitoring local indoor environmental quality (IEQ) close to the occupants.
Michael Kim, Hejia Zhang, Athanasios Tzempelikos, Andrea Gasparella, Francesca Cappelletti
The fan pressurization method that is widely used to measure the airtightness of buildings is known to have quite large measurement error.
Christophe Y. M. Delmotte
Sleep is essential for multiple aspects of a person’s well-being and can be affected by a person’s physical and mental state in addition to the environment they sleep in.
Hagen Fritz, Kerry Kinney, David Schnyer, Zoltan Nagy
The University of Colorado Boulder (CU Boulder) is in Boulder, Colorado USA at 5280 feet above sea level.
Shelly Miller, Matthew McQueen, Shannon Horn, Timothy Lockhart
Worldwide concern has been focused on the airborne disease of the COVID-19 pandemic.
Xiaorui Deng, Guangcai Gong, Yanhong Fang
In the current era, sensors in buildings have become an essential requirement for wide applications such as monitoring indoor air quality (IAQ), thermal and environmental conditions, controlling building heating, ventilation, an
Salam Al Samman, Mahroo Eftekhari, Daniel Coakley, Charalampos Angelopoulos, Vanda Dimitriou
Indoor air quality (IAQ) is influenced by several parameters and the sources of indoor air pollutants are numerous (building materials, occupant behavior, HVAC systems, Outdoor air, etc.).
Mohsen Pourkiaei, Claudia Falzone, Anne-Claude Romain
Many recent studies have been reported that the novel coronavirus (SARS-CoV-2) can spread through an airborne transmission route.
Yunchen Bu, Ryozo Ooka, Hideki Kikumoto, Wonseok Oh
Ultraviolet germicidal irradiation (UVGI) inactivates viral aerosols in indoor environments. Upper room UVGI systems use wall or ceiling mounted fixtures to create a disinfection zone above the occupied zone.
Youngbo Won, Donghyun Rim, Richard Mistrick, William Bahnfleth
Powerhouse Telemark is a low carbon plus energy project in Porsgrunn, Norway. The building is currently in a commissioning phase, but with most of the building under normal operation.
Tor Helge Dokka, DrIng Niels Lassen, Thomas Johnsen, Helge Koppang
Our planet is rapidly urbanizing, leading to significant biodiversity loss.
Christina Ciardullo, Andreas Theodoridis, Phoebe Mankeiwitz, Mohamed Aly Etman, Anna Dyson
Air leakage in a rotary heat recovery device in air handling unit (AHU) was studied by a laboratory experiment.
Lei Fang, Bjarne W. Olesen, Henning Grønbæk, Daniel Kampgaard Munck
Trends in home heating and cooling in the US are resulting in less mixing of air within dwellings, either due to not using central forced air systems, or to reduced loads and runtimes in high performance homes.
Iain Walker, Brennan Less, David Lorenzetti, Michael Sohn
Overheating has become a recurring problem in airtight and highly insulated buildings even in moderate climates.
Abantika Sengupta, Jonas Deleu, Brecht Lucidarme, Hilde Breesch, Marijke Steeman
The ongoing covid-19 pandemic has drawn the attention on the importance of providing adequate fresh air to the occupants of the built environment, in particular in educational buildings.
Riccardo Albertin, Giovanni Pernigotto, Andrea Gasparella
Nowadays, many countries include requirements for building airtightness in their current national regulations or energy-efficiency programs, mainly for concern about reducing building energy consumption due to air leakage.
Adeline Mélois, Mohamed El Mankibi, François Rémi Carrié, Bassam Moujalled
Indoor air quality (IAQ) plays an intrinsic role in occupant comfort, and should be evaluated as a key building performance indicator of early design phases.
Jan Drzymalla, Jannick Höper, Sven Eckers, Sebastian Theißen, Michaela Lambertz, Andreas Henne
In order to reduce the primary energy consumption of buildings, highly efficient heat recovery of the HVAC system is indispensable.
Ralf Wagner, Inga Rathert, Michael Meister
Industrial kitchens have high HVAC load requirements due to high exhaust rates from hoods. Especially in cold climates to heat the makeup air in winter requires high initial and - more importantly - high operating costs.
A.Tayfun Sümbül, Faruk Çimen