PASSIVE THERMAL MANAGEMENT SYSTEM FOR LIQUID PIPELINES

摘要

A passive thermal management system especially adapted for pipelines that transport a liquid having a freezing point that is higher than the temperature of the sun-ounding environment. The system includes a phase-change layer that changes from solid state to a liquid state at a temperature intermediate the temperatures of the material freezing point and the environment. If flow is interrupted, heat transfers from the phase-change layer to the stagnant transported liquid to increase the time from the interruption until the stagnant transported material reaches its freezing temperature and thereafter solidifies.