Regarding thermal camouflage usually one has to reduce the surface temperature of an object. All vehicles and installations having a combustion engine usually produce a lot of heat with results on hot spots on the surface which are highly conspicuous.
Using heat pipes to transfer this heat to another place on the surface more efficiently might be a way to reduce those hotspots and the overall conspicuity. In a first approach, a model for the Software TAIThermIR was developed to test which parameters of the heat pipes are relevant and what effects can be achieved.
It will be shown, that the thermal resistivity of contact zones are quite relevant and the thermal coupling of the engine (source of heat) defines if the alteration of the thermal signature is large or not.
Furthermore the impact of the use of heat pipes in relation to surface material is discussed. The influence of different weather scenarios on the change of signatures due to the use of heat pipes is of minor relevance and depends on the choice of the surface material.
Finally application issues for real systems are discussed.
Max E. Winkelmann, "Modelling and simulation of heat pipes with TAIThermIR (Conference Presentation)," Proc. SPIE 9997, Target and Background Signatures II, 99970N (Presented at SPIE Security + Defence: September 27, 2016; Published: 7 December 2016); https://doi.org/10.1117/12.2241154.5229530592001.
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