Passive cooling of outside plant power systems, a green solution to reduce energy consumption

A heatpipe integrated fully passive cooling system is designed and developed for 1.2 kW rectifiers, with application in telecom outside plant power systems. Four units of the rectifiers are assembled on a telecom enclosure and tested at 46°C ambient temperature. Results show that fully passive thermal management system with naturally cooled heatsinks is capable of dissipating the generated heat in the electrical components, efficiently. The maximum temperature on the heat generating component s reached 70°C which is 10°C below its maximum allowable temperature. A mathematical model is also developed for the designed cooling system, and the equivalent R-C model of the thermal management system is presented. The results from the mathematical model show a good agreement with experimental data.