Improvement of the Performance of Solar Energy or Waste Heat Utilization Systems by Using Phase-Change Slurry as an Enhanced Heat-Transfer Storage Fluid

[+] Author and Article Information
K. E. Kasza, M. M. Chen

Components Technology Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Ill. 60439

J. Sol. Energy Eng 107(3), 229-236 (Aug 01, 1985) (8 pages) doi:10.1115/1.3267683 History: Received November 01, 1983; Online November 11, 2009


This paper is concerned with the benefits of using phase-change slurries as enhanced heat-transfer/storage working fluids in solar energy and waste heat utilization systems. Literature is cited to show that a slurry containing a phase-change material as the dispersed phase promises to have much higher heat-transfer coefficients than conventional single-phase working fluids. Because of the latent heat, the phase-change slurry also requires lower pumping rates and smaller storage tanks than single-phase fluids for the same energy content. These benefits are documented by comparisons of temperature drops, pumping rates, pumping powers, and the sizes of storage tanks for a generic energy collection system operating with and without a slurry.

Copyright © 1985 by ASME
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