A numerical study was performed to investigate the feasibility of using heat pipe cooling in drilling applications. The drill and heat pipe were modeled as concentric cylinders and for simplification only conduction heat transfer was considered.In this model the friction that is imposed to the rotating drill was simulated as constant heat flux. Also the effect of geometrical parameters such as heat pipe diameter, heat pipe depth, input heat flux was analysed. To validate the numerical results, they were compared with the experimental results which show a good compatibility. According to this results, using heat pipe in drilling applications can significantly reduce the field temperature. Also the optimized value of the diameter and the length of heat input zone were obtained.

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