Transient Characteristics of a Two-Phase Thermosyphon Loop for Cooling Telecommunication Outdoor Cabinets

Abstract

In this paper, experimental investigations of a two-phase thermosyphon loop are presented in order to keep telecommunication equipments temperature below 55°C. The experimental setup consists of a thermosyphon loop containing an evaporator and a condenser connected by two flexible tubes. Tests are performed firstly in transient state using the thermosyphon loop prototype inside telecommunication cabinet. The n-pentane is used as the working fluid. Firstly, transient thermal characteristics of the thermosyphon loop are measured. In the other way, the thermosyphon loop is tested for different power input up to 450W. Operating temperatures of the telecommunication equipments cooled with forced air convection and two-phase thermosyphon loop are compared.

Environmental friendly mobile radio networks: Approaches of the European OPERA-Net 2 project

“…For example, in a typical Orange cellular BTS, natural convection cooling methods are not suitable due to the high-powers involved [8]. Passive cooling solutions therefore need to be developed for outdoor telecommunication cabinets [9][10]. Experimental investigations have been conducted for different power level telecommunication equipment in outdoor cabinets, fitted with and without thermosyphon loops ( Figure 1).…”