Abstract:
This paper deals with an experimental
investigation of pool boiling of water and methanol
at atmospheric pressure from small horizontal heat
sources. The heat sources are inserted into the
copper tube submerged in a laterally-confined,
finite pool of liquid. The saturated pool boiling heat
transfer characteristics and the critical heat flux
(CHF) condition were determined in the
experiments. In the experiment, an attempt has been
made to estimate the heat flux for pool boiling of
Water and Methanol at atmospheric pressure. An
indoor experiment was conducted to measure (i) the
heat flux of water and methanol, (ii) the
temperature of the working fluids, (iii) the wall
superheat temperatures, (iv) the temperatures at the
bottom and side of the pot, (v) time required to be
superheated at definite time intervals for a given
heat input. The heat input has been varied by
changing the voltage with the help of a voltage
regulator. A regression analysis has been
performed by using the experimental data in the
correlation of Rohsenow for pool boiling.
