Heat Pipe TWT Cooling System

Project Title

Design & Development of Heat Pipe TWT Cooling Systems

(CL 9 95 066 RD 48)

Objective

To design, develop and supply 5 nos. of heat pipe TWT cooling system for an application involving strategic electronic thermal management.

Project Description

Under a prestigious commercial project valued at about Rs30.0 lakhs, 5 Nos. of heat pipe cooling systems for Travelling Wave Tubes (TWT) with power dissipation up to 2000 W used in communication systems were developed.  Variable length copper /ethanol heat pipes of 18 mm diameter and lengths ranging from 350 to 450 mm bent appropriately to form a plate-fin condenser forced cooled by an ID fan delivering maximum flow rate of 150 lts/s. The fan is directly mounted on the condenser duct. The system was integrated with the respective TWT and the operating temperature was maintained at a mandatory level of 100 ⁰C. The system is of rugged construction made to stringent specifications. The measured overall thermal resistance of the cooling system was 0.025 W/K under actual

Heat Pipe TWT Cooling System

operating conditions. The units were supplied after successful operation and environmental testing of the systems. This development work with heat pipes was the first of its kind in India.

See a butterfly shaped CPU Cooler with Heat Pipes from zerotherm.net  shown in quietpc.com.