Radiant ceiling panels have been shown to provide good thermal comfort for occupants and reduce energy consumption in large buildings. A disadvantage of radiant panels however, is the inability to alter the relative humidity (RH) of a space, which can also lead to occupant discomfort. A new panel is being developed which will transfer both heat and moisture to a room, to moderate space temperature and RH simultaneously. In order to determine how this panel performs, a test panel has been created and tested in an experimental facility. The panel is situated in the top of a rectangular duct. The surface of the panel is made of a porous membrane, which allows moisture to transfer between the air and the panel. Air passes through the duct and underneath the panel, at low Reynolds numbers (Re). As heat and moisture are transferred between the panel and the air, temperature and concentration gradients form in the duct. If these gradients become large, free convection will occur. Depending on which type of convection is dominant, free or forced, the air will flow in different patterns. In order to understand the performance of the panel, flow visualization is used to determine how the airflow is affected by temperature and concentration gradients. Test conditions include heating, cooling, humidification and dehumidification.
Skip Nav Destination
2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4937-8
PROCEEDINGS PAPER
Flow Visualization of Airflow Through a Rectangular Duct With Combined Heat and Mass Transfer Available to Purchase
M. T. Fauchoux,
M. T. Fauchoux
University of Saskatchewan, Saskatoon, SK, Canada
Search for other works by this author on:
C. J. Simonson,
C. J. Simonson
University of Saskatchewan, Saskatoon, SK, Canada
Search for other works by this author on:
D. A. Torvi
D. A. Torvi
University of Saskatchewan, Saskatoon, SK, Canada
Search for other works by this author on:
M. T. Fauchoux
University of Saskatchewan, Saskatoon, SK, Canada
C. J. Simonson
University of Saskatchewan, Saskatoon, SK, Canada
D. A. Torvi
University of Saskatchewan, Saskatoon, SK, Canada
Paper No:
IHTC14-22881, pp. 677-684; 8 pages
Published Online:
March 1, 2011
Citation
Fauchoux, MT, Simonson, CJ, & Torvi, DA. "Flow Visualization of Airflow Through a Rectangular Duct With Combined Heat and Mass Transfer." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 2. Washington, DC, USA. August 8–13, 2010. pp. 677-684. ASME. https://doi.org/10.1115/IHTC14-22881
Download citation file:
18
Views
Related Proceedings Papers
Related Articles
Numerical Evaluation of Fin Performance Under Dehumidifying Conditions
J. Heat Transfer (October,2007)
Turbulent Heat and Mass Transfer Across a Hollow Fiber Membrane Tube Bank in Liquid Desiccant Air Dehumidification
J. Heat Transfer (August,2012)
Model Predictive Control-Based Hierarchical Control of a Multi-Zone Commercial HVAC System
J. Eng. Sustain. Bldgs. Cities (May,2021)
Related Chapters
Dynamic Cool Roofing Systems
Advanced Energy Efficient Building Envelope Systems
The Cause of Most Field Problems
Heat Exchanger Engineering Techniques
Inside the Building
Geothermal Heat Pump and Heat Engine Systems: Theory and Practice