Thermal performance and flow characteristics in additive manufactured polycarbonate pulsating heat pipes with Novec 7000

• A 3D-printed polycarbonate-based transparent PHP was successfully fabricated. An aluminum plate bonded to the channel allows for better heat conduction. The enables flexible design and flow visualization. maximum effective thermal conductivity of 7.0 × 10 3 W/(m⋅K) obtained. To improve performance electronic devices, incorporating an cooling system in their is important. pulsating pipe (PHP) a passive device that efficiently transports as sensible latent from evaporator section condenser via oscillatory two-phase flow. In recent years, with progress additive manufacturing technology PHPs increased flexibility wider industrial applicability has been expected. optimize plastic structure practical uses, effects geometry regime on appropriate operating conditions need be clarified at higher input power. present study focuses visualization plastic-based having size configuration. Using manufacturing, serpentine fabricated polycarbonate. filled Novec 7000 working fluid, fill ratio fluid PHP’s transport were investigated. Based images, we evaluated pattern parameters such vapor-slug lengths, velocity, passing frequency, relationship between oscillating during operation.