ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Unusual heat transfer phenomena have been observed between solid surfaces and fluids near their thermodynamic critical point. To understand better these phenomena temperature and velocity profiles and local heat transfer coefficients were measured for turbulent flow of carbon dioxide in a tube at 1,075 lb/sq. in. abs. (pc = 1,071). The results indicate a severe flattening of the radial temperature profiles, a maximum in the velocity profile between the wall and the tube axis, and a maximum in h' when the bulk fluid temperature passes through the transposed critical temperature.The results can be explained qualitatively by considering the variation with temperature of thermal conductivity near the tube wall and specific heat in the turbulent core.
Additional Material:
13 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690100210
