Studies of Directly Absorbing Fluids for Mid-Temperature Solar Thermal Applications

摘要

Thermal, photochemical, and optical absorptivity studies at elevated temperatures were initiated on various heat transfer fluids containing chromophoric materials. The solar absorption efficiency of the fluids and chromophores were calculated at ambient and elevated temperatures. Density, viscosity, and heat capacity measurements for specific solutions were also determined. Eight chromophoric solutions have been identified, thus far, for further study as candidates for directly absorbing fluids for use up to 300 exp 0 C. (ERA citation 04:046226)