ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
CONDENSATION AND PRESSURE DROP FOR CROSSFLOW OF STEAM IN SMALL TUBE BUNDLES
Abstract
Condensation rates and pressure drops are
determined for horizontal cross flow of steam in
small tube bundles. Steam pressures in the range
of 0.2 to 0.8 bar, vapour approach velocities of
up to 40 m/s and cooling water velocities in the
range of 1.1 to 1.8 m/s are investigated.
The cooling water flow rate and temperature rise are measured for each tube enabling individual as well as overall heat transfer coefficients to be determined. The results are discussed in terms of the vapour flow patterns and the factors which influence condensation such as vapour and cooling water velocity.
Correlations for the condensing heat transfer for both the 1st row and tube bundle are obtained as functions of the important vapour and cooling water variables and it is suggested that such correlations might prove useful in the early design stages of small condensers.
The cooling water flow rate and temperature rise are measured for each tube enabling individual as well as overall heat transfer coefficients to be determined. The results are discussed in terms of the vapour flow patterns and the factors which influence condensation such as vapour and cooling water velocity.
Correlations for the condensing heat transfer for both the 1st row and tube bundle are obtained as functions of the important vapour and cooling water variables and it is suggested that such correlations might prove useful in the early design stages of small condensers.