Natural Convection Cooling of a Vacuum Flask
Application ID: 1448
The following example solves a pure conduction and a free-convection problem in which a vacuum flask holding hot coffee dissipates thermal energy. The main interest is to calculate the flask's cooling power; that is, how much heat it loses per unit time.
This tutorial model treats the natural convection cooling with two approaches:
- Using heat transfer coefficients to describe the thermal dissipation
- Modeling the buoyancy-driven flow of air outside the flask to describe the convective cooling
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
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