This investigation pertains to boiling heat transfer from a submerged flat surface at subatmospheric and atmospheric pressures in the presence of hydroxy ethyl cellulose (HEC) as a polymeric additive in small doses. Boiling was carried out in presence of the additive on smooth and rough aluminium surfaces having effective cavity size within the range as predicted by Hsu model and the pressure was kept in the range of 8 - 100 KN/sq.m (abs). Effects of surface roughness, saturation pressure and polymer concentration on boiling heat transfer were studied and the results were compared with Rohsenow's correlation. © 1986.

Pradip Kumar Tewari

Department of Chemical Engineering

IIT Jodhpur

R.K. Verma

M.P.S. Ramani

S.P. Mahajan

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Journal	International Communications in Heat and Mass Transfer
ISSN	07351933