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Convective Energy Flow through a Window

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This Demonstration calculates the energy balance to determine the convective energy flow of air from a room at temperature to the outside environment at temperature . A glass window of width and height separates the inside and outside air. The air outside is blowing with velocity parallel to the glass.

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The energy flow is obtained as a function of wind velocity , window width , window height , inside temperature , outside temperature and the physical properties of the air. You can see the numerical values by hovering the mouse over the points in the plots.

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Contributed by: Rubí Ramírez (December 2020)
Suggested by: Rafael Fernández
With additional contributions by: Tomas Garza, Rafael Fernández and Bernardo Hernández
Open content licensed under CC BY-NC-SA

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Reference

[1] Y. A. Çengel, J. M. Cimbala and R. H. Turner, Fundamentals of Thermal-Fluid Sciences, 5th ed., New York: McGraw-Hill Education, 2017.

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