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Answer: In general, the best orientation for heat pipes is to be in horizontal positioning (however many specific heat pipes can work in vertical conditions just as well) because you want to limit the effects of gravity. For heat pipes to properly work, the evaporation side has to be equal to OR above the condenser side, which is our main restricting condition. Considering the dimensioning of our battery box and also the fact that it would be easier to design horizontal heat pipes versus vertical heat pipes, we should look towards a horizontal orientation. With a horizontal orientation, we would most likely possibly have to consider a inclination angle (typically between 60-75 degrees), which can be defined through further ANSYSS and CFD testing.
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