In this research, the changes in bubbles diameter and

\r\nnumber that may occur due to the change in heat flux of pure water

\r\nduring pool boiling process. For this purpose, test equipment was

\r\ndesigned and developed to collect test data. The bubbles were graded

\r\nusing Caliper Screen software. To calculate the growth and

\r\nnucleation rates of bubbles under different fluxes, population balance

\r\nmodel was employed. The results show that the increase in heat flux

\r\nfrom q=20 kw\/m2 to q= 102 kw\/m2 raised the growth and nucleation

\r\nrates of bubbles.<\/p>\r\n\r\n

<\/p>\r\n","references":"[1] Nukiyama, S., 1934, \"The maximum and minimum values of heat \r\ntransmitted from metal to boiling water under atmospheric pressure\", J. \r\nJapan Soc. Mech. Eng., 37, 367. \r\n[2] Kutateladze, S. S., Gogonin, I. I., 1979, \"Growth velocity and \r\ndetachment diameter of vapor bubbles of various fluids under free \r\nconvection conditions\", Teplofizika Visokikh (in Russian), 4, PP.792-\r\n797. \r\n[3] Zeng, L. Z., Mei, R., Klausner, J. F., 1993, \"A unified model for the \r\nprediction of bubble detachment diameters in boiling systems\", Int. J. \r\nHeat and Mass Transfer, 36, PP.2261-2279. \r\n[4] Han, C. Y., Griffith, P., 1965, \"The mechanism of heat transfer in \r\nnucleate pool boiling\", Int. J. Heat and Mass Transfer, 8, PP.880-920. \r\n[5] Christopher, D.M., Wang, H., Peng, X., 2006. \"Numerical analysis of \r\nthe dynamics of moving vapor bubbles\", Int. J. Heat and Mass Transfer, \r\n49, PP.3626-3633. \r\n[6] Frost, W., Kippenhan, C.J., 1967. Bubble growth and heat transfer \r\nmechanisms in the forced convection boiling of water containing a \r\nsurface active agent, Int. J. Heat Mass Transfer 10: 931-949. \r\n[7] Kotchaphakdee, P., Williams, M.C., 1970. \"Enhancement of nucleate \r\npool boiling with polymeric additives\", Int. J. Heat and Mass Transfer, \r\n13, PP.835-848. \r\n[8] Jamialahmadi, M., Blochl,R., Muller-Steinhagen,H., 1991 \"Pool boiling \r\nheat transfer to saturated water and refrigerant 113\", The Can. J. of \r\nChemical Eng., 69, PP.746-754. \r\n[9] Lee, H.C., Oh, B.D., Bae, S.W., Kim, M.H., 2003. \"Single bubble \r\ngrowth in saturated pool boiling on a constant wall temperature surface\", \r\nInt. J. Multiphase Flow, 30, PP.1849-1858. \r\n[10] Mei. R., Chen, W., James., F., 1998. \"An experimental investigation of \r\nbubble growth and detachment in vertical upflow and downflow \r\nboiling\", Int. J. Heat and Mass Transfer, 41, PP.3857-3871. \r\n[11] Mukherejee, A., Kandlikar, S.G., 2006. \"Numerical study of single \r\nbubbles with dynamic contact angle during nucleate pool boiling\", Int. J. \r\nHeat and Mass Transfer, 5. \r\n[12] Ozbek, H., Philips, P., 2003. \"Thermal conductivity of aquaes solutions \r\nfrom 20 to 330 degree centigrade\", European Journal of Surgical \r\nOncology (EJSO), 36, PP.5-9.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 85, 2014"}