Many vessels experience significant thermal loads in operation. This paper discusses a method used to develop the internal thermal boundary conditions (film coefficients) required to evaluate thermal loads when the thermal properties of the internal fluid are unknown. In a thermal analysis it is critical to determine the correct film coefficients to achieve the proper behavior. Improperly quantified heat up rates can have a dramatic effect on the overall design. An example is provided to show how assumptions on thermal input can directly effect the results. The method described in this paper uses Finite Element Analysis (FEA) to determine internal film coefficients based on field measured thermocouple data.
- Pressure Vessels and Piping Division
Transient Thermal Finite Element Analysis Based on Field Measured Data and the Impact on Fatigue
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Kirkpatrick, KD, Miller, GA, III, Millet, BJ, Malek, DW, & Antalffy, LP. "Transient Thermal Finite Element Analysis Based on Field Measured Data and the Impact on Fatigue." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. Design and Analysis of Pressure Vessels, Heat Exchangers and Piping Components. San Diego, California, USA. July 25–29, 2004. pp. 39-45. ASME. https://doi.org/10.1115/PVP2004-2594
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