Intermediate Temperature Fluids for Heat Pipes and Loop Heat Pipes, Phase I

This Small Business Innovation Research Phase I project will develop heat pipe and loop heat pipe (LHP) working fluids for what is known as the intermediate temperature range, from roughly 500 K to 700 K. Currently, there are no working fluids in this range that can be used in NASA applications, due in part to unknown physical properties and insufficient life test data. The overall objective of the proposed Phase I and Phase II programs is to validate one or more fluids for use in the intermediate temperature range. This will include life tests, determination of the physical property data required to design heat pipes and LHPs in this temperature range, and the design, fabrication, and testing of suitable heat pipes and/or LHPs. More »