We are happy to announce that the recordings of the AIVC webinar, “Energy Performance of Gas Phase Air Cleaning”, held on February 21, 2025 are now available on our website!
Submitted by Maria.Kapsalaki on Tue, 01/14/2025 - 11:37
Buildings account for a substantial portion of global energy consumption, and heating, ventilation and air conditioning (HVAC) systems are responsible for approximately 40% of the buildings’ energy consumption. A building façade, with HVAC, has a great influence on the internal environment. An optimization of the façade design and operation can help improve building energy efficiency.
Submitted by Maria.Kapsalaki on Tue, 01/14/2025 - 11:36
Global and local climate changes affect the energy performance of buildings, especially during the warm season, with relevant increase of cooling uses in mechanically cooled buildings and discomfort hours in naturally ventilated ones. The ventilative cooling is proved to be a promising strategy to tackle this threat, however installing new ventilation systems in existing buildings is challenging in technical and economic terms. The strategy can be also pursued by motorized windows duly operated.
Submitted by Maria.Kapsalaki on Mon, 01/13/2025 - 11:48
In high-efficient residential buildings, energy use due to ventilation can reach 60% of the total building. Smart-ventilation systems with variable airflows adapting to the need of buildings and occupants can increase the energy performance of the building and at the same time improve or maintain IAQ. They are also considered as a huge opportunity for new and existing residential buildings.
Submitted by Maria.Kapsalaki on Mon, 01/13/2025 - 10:47
The durability of air barrier systems is a topic that is rarely discussed during the design phase of most projects. An unfortunate amount of effort is spent on drawing details and specifying products with the sole intention of meeting energy code requirements, with much less thought being given to how those systems actually will be constructed and possibly worse – how those systems will fare over time.
Submitted by Maria.Kapsalaki on Wed, 01/08/2025 - 09:51
In many parts of the world, outdoor air quality is so poor that it is better to avoid ventilation with outdoor air. In such cases, the alternative is to substitute ventilation with air cleaning to maintain high indoor air quality. Even when outdoor air quality is good, the use of air cleaning substituting ventilation with outdoor air could reduce the rate of outside air supplied indoors and thereby energy for conditioning (heating/cooling) the ventilation air, filtration and for transporting the air (fan energy) can be saved.
We are happy to announce that the recordings of the AIVC & TightVent co-organized webinar, “Building Airtightness Impact on Energy Performance (EP) Calculations”, held on December 9, 2024 are now available on our website!
Featured Presenters:
Nolwenn Hurel (Cerema, France)
Xiaofeng Zheng (University of Nottingham, United Kingdom)
Valérie Leprince (Cerema, France)
Jiri Novak (Czech Technical University in Prague, Czechia)
Submitted by Maria.Kapsalaki on Wed, 06/28/2023 - 17:29
Productivity of workers is greatly affected by their comfort in the workplace. Research has shown that thermal comfort is one of the most influential parameters on worker productivity, and that the running costs of a Heating, Ventilation and Air Conditioning (HVAC) system could be up to ten times lower compared to productivity losses that would be incurred in a free-runing building.
AIVC's Ventilation Information Paper no 42: The Concept for Substituting Ventilation by Gas Phase Air Cleaning has just been released! The paper discusses and evaluates the pros and cons by partly substituting required ventilation by gas phase air cleaning.
The paper is freely accessible upon registration. Please click here to download and read the document.
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