INTRODUCTION
Two-phase flow is well-known for its high heat transfer coefficients, making it very attractive in electronic cooling applications. Moreover, two-phase can exploit the forces between the liquid and vapour phases to implement a passive cooling system, requiring no external energy for a mechanical driver. For these reasons, a novel passive system is studied and analysed in this paper to address its feasibility and reliability along with enhanced thermal performance and uniform cooling. The thermal management solution is based on the loop thermosyphon, a passive two-phase cooling system exploiting gravity as the driving force for the fluid flow.