Colvin, D. P. | Search NASA

NASA NTRS1992

Enhanced heat transport in environmental systems using microencapsulated phase change materials

A methodology for enhanced heat transport and storage that uses a new two-component fluid mixture consisting of a microencapsulated phase change material (microPCM) for enhanced latent heat transport is outlined. SBIR investigations for NASA, USAF, SDIO, and NSF since 1983 have demonstrated the ability of the two-component microPCM coolants to provide enhancements in heat transport up to 40 times over that of the carrier fluid alone, enhancements of 50 to 100 percent in the heat transfer coefficient, practically isothermal operation when the coolant flow is circulated in an optimal manner, and significant reductions in pump work.

Colvin, D. P.↗

NASA NTRS1971

Thermal scale modeling of a spacecraft radiator with coupled forced convection- conduction-radiation heat transfer Annual report

Design and development of spacecraft radiator using forced convection, conduction, and radiation for heat transfer under steady state conditions

Colvin, D. P.↗

NASA NTRS1971

Thermal scale modeling of a spacecraft radiator with coupled convection-conduction- radiation heat transfer

Spacecraft radiator thermal scale model, using forced convection, conduction and radiation heat transfer

Colvin, D. P.↗