Concept
Airflow
Publications associées (32)
Experimental study of the hydrodynamic and thermal performances of ventilated wall structures
Dolaana Khovalyg, Mohammad Rahiminejad
The presence of a ventilated air gap behind the external cladding in a building envelope is known to have a tangible contribution to the overall performance of the wall assembly. In the present study, the hydrodynamic and thermal performances of ventilated ...
2023Optimal sensor placement for personal inhalation exposure detection in static and dynamic office environments
Modern health and productivity concerns related to air pollutant exposure in buildings have sparked the need for occupant-centric monitoring and ventilation control. The existing personal exposure monitoring is often restricted to stationary air quality se ...
PERGAMON-ELSEVIER SCIENCE LTD2023A new chapter of healthy indoor air: antiviral air treatments
Aerosol transmission remains a major challenge for the control of respiratory viruses. To date, prevention strategies include masks, vaccinations, physical distancing, travel restrictions, and lockdowns. Such measures are effective but come with heavy soci ...
Hoboken2023Measuring the effective thermal resistance of ventilated air-spaces behind common wall assemblies: Theoretical uncertainty analysis and recommendations for the hot box method modifications (ASHRAE 1759-RP)
Dolaana Khovalyg, Mohammad Rahiminejad
A well-designed ventilated wall that incorporates air-space behind cladding can reduce energy use for conditioning buildings by adding a thermally resistive layer. The scarcity of thermal performance data and standardized test methods is a particular barri ...
2022Continuous raw particle number concentration data in 10 sec resolution, measured in the Swiss aerosol container during MOSAiC 2019/2020
This dataset contains raw particle number concentration data measured during the year long MOSAiC expedition from October 2019 to September 2020. The measurement was performed in the Swiss aerosol container on the D-deck of Research Vessel Polarstern using ...
EPFL Infoscience2022Numerical and experimental study of the dynamic thermal resistance of ventilated air-spaces behind passive and active façades
Dolaana Khovalyg, Mohammad Rahiminejad
The variation of the thermo-hydrodynamic behavior of the airflow in the ventilated cavity behind external claddings in a wall structure could potentially affect the overall thermal resistance of the entire structure. Although the impact of an enclosed air- ...
2022Impact of the Ventilated Cavity on the Thermal Performance of Traditional Wall Structures
Dolaana Khovalyg, Mohammad Rahiminejad
The amount of heat flux passing through the building envelope directly affects the energy use for the thermal conditioning of the building. The ventilated cavity behind the traditional external claddings (e.g., vinyl siding, brick veneer) adjacent to the w ...
AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS2021Comparison and Verification of Simulation Results of DeST Based on ASHRAE-140 Standard
Hatice Altug, Andreas Tittl, Aleksandrs Leitis
Based on the ASHRAE Standard 140-2014, this study takes the simulation results of DeST and other simulation software to comprehensively test the accuracy and validity of DeST in calculating building thermal loads and space cooling and heating equipment per ...
IEEE2021Impact of air-flow on thermal performance of air-spaces behind cladding (ASHRAE 1759-TRP)
Dolaana Khovalyg, Mohammad Rahiminejad
The project ASHRAE 1759-RP addresses the impact of the ventilated cavity behind external claddings on the thermal performance of the wall structure by defining “effective thermal resistance” of air gaps based on the linearized network of thermal resistance ...
ASHRAE2020Review on ventilation rates in the ventilated air-spaces behind common wall assemblies with external cladding
Dolaana Khovalyg, Mohammad Rahiminejad
For many decades, ventilated cavities in wall assemblies of buildings have been essential for creating moisture resilient constructions by allowing airflow within the air gap to promote drying. In addition to that, the airflow in the cavity can enhance the ...
2020