Analysis of Sintered Wicked Heat Pipes for Space-Constrained Multiple Component Cooling

Contemporary electronic cooling applications can feature complex heat pipe configurations with multiple sources (MHSs) and one or more bends in various locations to meet physical constraints. It is typically understood that implementing a bend adding MHS was tested for straight single source (SHS) degrade thermal performance. However, the severity of combining two phenomena effects changing location an are unknown. In this context, study presents experimental investigation performance four 400-mm-long, 6-mm-diameter, cylindrical copper sintered pipes, where small, heated saddles configured as evaporators: SHS, MHS, increasing angle from 0° 90°, 90° moved along axis. The results demonstrate bent does not act similar manner conventional SHS pipe. found resistance increases by up 65% when configuration changed increase further 15%–65%. For cases, induces ~5%–18%. Furthermore, optimum case be adjacent middle evaporator (of five), cases which load evenly distributed before after bend. suggest combination angle, has unique on fluid transport mechanisms inside and, thus, changes between configurations. Therefore, it concluded should designed basis characteristics pipes.