Several general categories of porous media heat exchangers have been successfully demonstrated to meet the challenges of high heat flux cooling. Demonstrated types of porous media heat exchangers include mechanically pumped single-phase and two-phase porous media heat exchangers, as well as capillary-pumped (heat pipe) two-phase designs. These designs have demonstrated the capability to meet and exceed typical cooling requirements for high heat flux applications. A brief description of each heat exchanger type is presented, as well as a discussion of the recognized applications for each approach. An overview is presented of the current state-of-the-art for each category, and an assessment is given of the capabilities of each approach to meet the needs of several high heat flux cooling applications.
John H. Rosenfeld,
"Porous media heat exchangers for high heat flux applications", Proc. SPIE 1739, High Heat Flux Engineering, (25 February 1993); doi: 10.1117/12.140518; https://doi.org/10.1117/12.140518