Ceiling radiant cooling panel capacity enhanced by mixed convection in mechanically ventilated spaces

• Published in: Applied thermal engineering Vol. 23; no. 18; pp. 2293 - 2306
• Main Authors: Jeong, Jae-Weon, Mumma, Stanley A.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.12.2003; Elsevier
• Subjects: Applied sciences; Ceiling radiant panel; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Heat transfer; Mechanical ventilation; Mixed convection; Natural convection; Radiant cooling; Refrigerants; Refrigerating engineering; Refrigerating engineering. Cryogenics. Food conservation; Theoretical studies. Data and constants. Metering; Radiant cooling; Ceiling radiant panel; Natural convection; Mixed convection; Mechanical ventilation; Correlation; Cooling capacity; Estimation; Ceiling; Surface temperature; Convection cooling; Research; Heat transfer coefficient; Normal
• ISSN: 1359-4311
• DOI: 10.1016/S1359-4311(03)00211-4

The main thrust of this research is to estimate the impact of the mixed convection effect on the cooling capacity of a ceiling radiant panel in mechanically ventilated spaces. To estimate panel cooling capacity enhancement caused by mixed convection, a verified analytical panel model was used. The simplified correlation for mixed convection heat transfer coefficient which can be easily adopted in panel cooling capacity estimation was derived from established mixed convection and natural convection correlations. It was found that the total cooling capacity of radiant panels can be enhanced in mixed convection situations by 5–35% under normal operating panel surface temperatures.