REU Thermal Design Project
This is my PDR presentation for ME 427 - Thermal Systems Design Course.
The task is to design a thermal solution which will keep 3 circuit boards (each generating 15 Watts within a remote electronics unit (REU) box) under 70 degrees Celsius. The REU is located within the fuselage of an airplane with an ambient temperature of 70 degrees Celsius. The airplane will operate from an altitude level of 0 meters to 12,000 meters.
The PDR was presented to our "customer" - the mechanical engineering department chair. Our approach was to recommend a solution based off of a trade study that we had performed, and then to prove that the solution worked using our transient lumped heat capacitance model programmed in MATLAB. However, we were unable to prove that the proposed solution was the right choice because we had failed to finish programming our model. The model we were attempting to program was too precise and required too much time. What we were supposed to do was to have recognized that some aspects of heat transfer were negligible after performing some basic heat transfer calculations. This would allow us to greatly simplify our thermal model and identify what type of thermal solution would be best suited for this system.
P.S. The presentation needs to be downloaded as an attachment below.
The task is to design a thermal solution which will keep 3 circuit boards (each generating 15 Watts within a remote electronics unit (REU) box) under 70 degrees Celsius. The REU is located within the fuselage of an airplane with an ambient temperature of 70 degrees Celsius. The airplane will operate from an altitude level of 0 meters to 12,000 meters.
The PDR was presented to our "customer" - the mechanical engineering department chair. Our approach was to recommend a solution based off of a trade study that we had performed, and then to prove that the solution worked using our transient lumped heat capacitance model programmed in MATLAB. However, we were unable to prove that the proposed solution was the right choice because we had failed to finish programming our model. The model we were attempting to program was too precise and required too much time. What we were supposed to do was to have recognized that some aspects of heat transfer were negligible after performing some basic heat transfer calculations. This would allow us to greatly simplify our thermal model and identify what type of thermal solution would be best suited for this system.
P.S. The presentation needs to be downloaded as an attachment below.
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