Abstract: Taking the industrial alcohol as a medium and the T - shaped fin tube as a heat transfer element, an experimental study on pool boiling heat transfer of single tube and small tube bundle have been done. The experimental results have show that the T -shaped fin tube is very effective for enhancement of pool boiling. Its boiling heat transfer coeffecient is 2-5 times of plain tube within the range of experimental heat flux. The relatve location of T -shaped tube has only a very small influence on boiling performance. The hysterisis phenomina of boiling of T -shaped tube have not been observed regardess of single tube or tube bundle within experimental heat flux. The carbon steel T -shaped fin tube and its correlation from experimental data regression with a wider application range and accuracy within ±25% have been succesfully used for butane reboiler of depropanizer.