Nucleate boiling in drag-reducing polymer solutions

Journal Article · Tue Feb 01 04:00:00 EST 1983 · J. Rheol.; (United States)

DOI:https://doi.org/10.1122/1.549695· OSTI ID:5611507

Paul, D D; Abdel-Khalik, S I

Nucleate boiling curves for aqueous solutions of drag-reducing polymers have been measured experimentally. The polymers examined are a galactomannan polysaccharide (Galactasol 211), a polyacrylamide (Separan MGL), two polymers consisting of both acrylamide and acrylic acid monomers (Separan NP-10P and Separan AP-30), two polyethylene oxides (Aldrich No. 18202-8 and No. 18946-4), and three hydroxyethyl celluloses (Natrosol 250MR, 250HR, and 250HHR). The boiling curves have been measured using an electrically heated platinum wire submerged in a saturated pool of liquid at atmospheric pressure. Polymer concentrations corresponding to relative viscosities of 1.01, 1.04, 1.08, 1.16, and 1.32 have been tested. The observed changes in the nucleate boiling curves for polymer solutions are in qualitative agreement with those predicted by the Rohsenow pool boiling correlation. In particular, the temperature shifts in the boiling curves are predicted adequately based only on how the polymers change the solution surface tension and, more importantly, the solution viscosity. Drag reduction effects appear to be unimportant; hence, polymer type, molecular weight, and concentration are important only insofar as they affect solution properties. These results differ from those reported by earlier investigators for pool boiling of dilute polymer solutions on heated flat plates.

• Research Organization: Batelle-Columbus Laboratories, 505 King Avenue, Columbus, Ohio 43201
• OSTI ID: 5611507
• Journal Information: J. Rheol.; (United States), Journal Name: J. Rheol.; (United States) Vol. 27:1; ISSN JORHD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
ACRYLAMIDE
ACRYLIC ACID
AMIDES
AQUEOUS SOLUTIONS
BOILING
CARBOHYDRATES
CARBOXYLIC ACIDS
CELLULOSE
DISPERSIONS
DRAG
HYDROXYL RADICALS
MIXTURES
MONOCARBOXYLIC ACIDS
NUCLEATE BOILING
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PHASE TRANSFORMATIONS
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYSACCHARIDES
RADICALS
SACCHARIDES
SOLUTIONS
SURFACE PROPERTIES
SURFACE TENSION
VISCOSITY