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Conclusions Expressions for the analytical temperature distribution and ef ciency of a heat pipe n were derived and compared with experimental data. Two heat pipe n cases were studied, ush mounted and inserted into the object. The derived expressions are useful as a design tool. They allow the designer to compare heat pipe ns to standard ns before doing a detailed heat pipe design. Further researchcould focus on variations in heat pipe design and geometry.Thesecouldincludenonconstantpropertiesandboundary conditions.For this work, the wall cross-sectionalarea, the internal convectioncoef cient, and the external convectioncoef cient were assumed constant. The impact of these assumptions on accuracy should be investigated. It would also be interesting to extend the analysis to ns in radiation environments.
Alisetti et al. (Sat,) studied this question.