Supercritical convection, critical heat flux, and coking characteristics of propaneThe heat transfer characteristics of propane at subcritical and supercritical pressure were experimentally evaluated using electrically heated Monel K-500 tubes. A design correlation for supercritical heat transfer coefficient was established using the approach previously applied to supercritical oxygen. Flow oscillations were observed and the onset of these oscillations at supercritical pressures was correlated with wall-to-bulk temperature ratio and velocity. The critical heat flux measured at subcritical pressure was correlated with the product of velocity and subcooling. Long duration tests at fixed heat flux conditions were conducted to evaluate coking on the coolant side tube wall and coking rates comparable to RP-1 were observed.
Document ID
19840052365
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rousar, D. C. (Aerojet TechSystems Co. Sacramento, CA, United States)
Gross, R. S. (Aerojet TechSystems Co. Sacramento, CA, United States)
Boyd, W. C. (NASA Johnson Space Center Houston, TX, United States)