Unsolved Aerospace Heat and Mass Trasfer Research Issues for the Development of Two-Phase Thermal Control Systems for Space.

摘要

This review concerns heat and mass transfer research issues pertaining to the current development of active thermal control systems for spacecraft, i.e., the development of two-phase heat transport system technology. Various topics are discussed to show that many investigations are being done to solve the different problems. The progress is discussed, including current activities and work to be done. The discussions focus on the development and in-orbit technology demonstration of Capillary Pumped Loops and Loop Heat Pipes and on thermal/gravitational scaling of two-phase heat transport systems. They include also the prediction of gravity level dependent adiabatic and condensing flow behaviour, creation of gravity level dependent two-phase flow regime (pattern) maps, and development of two-phase thermal management systems components, like vapour quality sensors, high efficiency low pressure drop condensers and rotatable thermal joints.