ISSN Online: 2377-424X
International Heat Transfer Conference 3
AN ANALYSIS OF THE STEADY STATE AND STABILITY CHARACTERISTICS OF A NATURAL CIRCULATION BOILING CHANNEL
Sinopsis
The paper deals with studies in the field of stability
in a vertical boiling channel in which heat is generated
by an electrically heated element and transferred to
water circulating by natural convection under pressures
up to 30 atm. Experimental and theoretical studies regard
the static performance as well as the dynamic characteristics
of the boiling channel. The aim of the static
programme is to yield correlations for slip and pressure
drop in two-phase flow, whereas the dynamic programme
has led to the establishment of conditions under which
instabilities start and to the prediction of the stability
characteristics of the steady state by hand of transfer
functions. The mathematical model by Jahnberg is used
for comparison with experimental results.