Thermal Modeling of Outdoor Digital Displays Under Different Brightness Outputs
Kim, J. Michael Brown, K. O’Connor, M. Diaz and Y. Joshi, “Thermal Modeling of Outdoor Digital Displays Under Different Brightness Outputs,” in IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 10, no. 6, pp. 949-955, June 2020, doi: 10.1109/TCPMT.2020.2993521.
The thermal design process for electronic products often minimizes the use of computational fluid dynamics and heat transfer (CFD/HT) software in favor of quick prototyping and testing to determine the thermal characteristics of the product. For large-scale products with many thermal challenges, such a strategy can be impractical due to the high cost of prototyping cycles, time constraints, and inevitable iterations involved. In such cases, thorough CFD/HT models developed early in the design process are valuable for driving the product design. Based on this idea, the study examines thermal performance of 55” outdoor digital displays using CFD/HT tools and a prediction under hazardous outdoor condition is made for two different brightness outputs. The prediction is extrapolated and validated through the outdoor testing and simulation comparisons. It is shown that CFD/HT software can be used as a means of making conservative design choices.