本論文探討水蒸汽在水力直徑50、60、67μm矩型矽質微通道陣列內之冷凝現象，觀察冷凝雙相流譜及分析冷凝熱傳性能與質量通率、蒸汽入口溫度、水力直徑及注射流發生位置等參數的關係，接著探討完全發展環狀流之熱傳性質，並與傳統液膜冷凝熱傳經驗公式比較。
研究結果顯示，蒸汽在流道內之所出現的流譜主要有霧狀-環狀流、注射流、氣泡流及長型彈狀流；隨著蒸氣質量流率及蒸氣入口溫度的增加，注射流將會在流道更下游處發生。
霧狀-環狀流、注射流、氣泡流及長型彈狀流皆出現於流道內之平均冷凝熱通率隨著蒸汽入口溫度及質量流率的增加而增加；另外，注射流的發生位置會對蒸汽冷凝之平均熱通率造成相當的影響。在完全發展環狀流方面，蒸汽入口溫度和質量通率亦對熱通率的造成影響。
本次研究成果與Chato,1962和Shah,1979之冷凝熱傳經驗公式比較。結果顯示，Chato的熱傳模式將高估實驗值約1.5倍，而Shah的經驗公式預測結果略高於實驗值。

(1)J. W. Rose, “On interphase matter transfer, the condensation coefficient and dropwise condensation”, Proc. R. Soc. Lond., A. 411, pp. 305-311 , 1987
(2)Jakob M, “Heat transfer in evaporation and condensation”, Mech Eng. Vol. 58, pp. 729–739, 1936
(3)Tammann G, Boehme W, “Die Zahl der wassertrcpfchen bei der kondensation auf verschiedenen festen stiffen”, Ann Physik, Vol. 5, pp. 77–80, 1935
(4)A. Umur, P. Griffith, “Mechanism of Dropwise Condensation”, ASME, Journal Heat Transfer, Vol. 87, pp. 275-282, 1965
(5)Y. Song, D. Xu, J. Lin, S. Tsian, “A Study on the Mechanism of Dropwise Condensation”, International Journal of Heat and Mass Transfer, Vol. 34, No. 11, pp. 2827-2831, 1991
(6)L. Tianqing, M. Chunfeng, S. Xiangyu, and X. Songbai, “Mechanism Study on Formation of Initial Condensate Droplets”, AIChE Journal, Vol. 53, No. 4, pp. 1050-1055, 2007
(7)W. A. Nusselt, “The surface Condensation of Water Vapor”, Zieschrift Ver. Deut. Ing., Vol.60, pp. 541-546, 1916
(8)Chato, J. C., ”Laminar Condensation Inside Horizontal and Inclined Tubes”, J. ASHRAE, 4, 52, 1962
(9)Y. Yan, Tsing-Fa Lin, “Condensation heat transfer and pressure drop of refrigerant R-134a in a small pipe”, International Journal of Heat and Mass Transfer, Vol. 42, pp.697-708, 1999
(10)Bu-Xuan Wang, Xiao-Ze Du, “Study on laminar film-wise condensation for vapor flow in an inclined small/mini-diameter tube”, International Journal of Heat and Mass Transfer, Vol. 43, pp. 1859-1868, 2000
(11)A. Gavallini, G. Censi, D. Del Col, L. Doretti, G. A. Longo, L. Rossetto, “Experimental investigation on condensation heat transfer and pressure drop of new HFC refrigerants (R134a, R125, R32, R410A, R236ea) in a horizontal smooth tube”, International Journal of Refrigeration, Vol. 24, pp. 73-87, 2001
(12)W. W. Wang, T. D. Radcliff, R. N. Christensen, “A condensation heat transfer correlation for millimeter-scale tubing with flow regime transition”, Experimental Thermal and Fluid Science, Vol. 26, pp. 473-485, 2002
(13)D. Jung, K. H. Song, Y. Cho, S. J. Kim, “Flow condensation heat transfer coefficients of pure refrigerants”, International Journal of Refrigeration, Vol. 26, pp. 4-11, 2003
(14)J. W. Coleman, S. Garimella, “Two-phase flow regimes in round, square and rectangular tubes during condensation of refrigerant R134a”, International Journal of Refrigeration, Vol. 26, pp. 117-128, 2003
(15)A. Cavallini, D. D. Col, L. Doretti, M. Matkovic, L. Rossetto, C. Zilio, “Condensation Heat Transfer and Pressure Gradient Inside Multiport Minichannels”, Heat Transfer Engineering, Vol. 26, pp.45-55, 2005
(16)A. Cavallini, L. Doretti, M. Matkovic, L. Rossetto, “Update on Condensation Heat Transfer and Pressure Drop inside Minichannels”, Heat Transfer Engineering, Vol. 27, pp. 74-87, 2006
(17)M. Y. Wen, C. Y. Ho, J. M. Hsieh, “Condensation heat transfer and pressure drop characteristics of R-290 (propane), R-600 (butane), and a mixture of R-290/R-600 in the serpentine small-tube bank”, Applied Thermal Engineering, Vol. 26, pp. 2045-2053, 2006
(18)R. Yun, J. Heo, Y. Kim, “Effects of surface roughness and tube materials on the filmwise condensation heat transfer coefficient at low heat transfer rates”, International Communications in Heat and Mass Transfer, Vol. 33, pp. 445–450, 2006
(19)K. Y. Lee, M. H. Kim, “Experimental and empirical study of steam condensation heat transfer with a noncondensable gas in a small-diameter vertical tube”, Nuclear Engineering and Design, Vol. 238, pp207-216, 2007
(20)J. S. Shin, M. H. Kim, “An experimental study of condensation heat transfer inside a mini-channel with a new measurement technique”, International Journal of Multiphase Flow, Vol. 30, pp.311-325, 2004
(21)H.Y. Wu, P. Cheng, “Condensation Flow Patterns in Silicon Microchannels”, International Journal of Heat and Mass Transfer, Vol. 48, pp. 2186-2197, 2005
(22)Y. Chen, P. Cheng, 2005, “Condensation of Steam in Silicon Microchannels” , International Journal of Heat and Mass Transfer, Vol. 32, pp.175-183, 2005
(23)P. Chen, H. Y. Wu, F. J. Hong, “Phase-Change Heat Transfer in Microsystems”, ASME, Journal of Heat Transfer, Vol. 129, pp. 101-107, 2007
(24)X. Quan, P. Cheng, H. Wu, “Transition from annular flow plug/slug flow in condensation of steam in microchannels”, International Journal Heat and Mass Transfer, Vol. 51, pp. 707-716, 2008
(25)S. Garimella, “Condensation Flow Mechanisms in Microchannels：Basic for Pressure Drop and Heat Transfer Models”, Heat Transfer Engineering, Vol. 25, pp. 104-116, 2004
(26)S. Garimella, A. Agarwal, J. D. Killion, “Condensation Pressure Drop in Circular Microchannels”, Heat Transfer Engineering, Vol. 26, pp.28-35, 2005
(27)T. M. Bandhauer, A. Agarwal, S. Garimella, “Measurement and Modeling of Condensation Heat Transfer Coefficients in Circular Microchannels”, Transactions of the ASME, Journal of Heat Transfer, Vol. 128, pp. 1050-1059, 2006
(28)B. Mederic, M. Miscevic, V. Platel, P. Lavieille, J. L. Joly, “Experimental study of flow characteristics during condensation in narrow channels: the influence of the diameter channel on structure patterns”, Superlattices and Microstructures, Vol. 35, pp.573-586, 2003
(29)B. Mederic, P. Lavieille, M. Miscevic, “Heat transfer analysis according to condensation flow structures in a minichannel”, Experimental Thermal and Fluid Science, Vol. 30, pp. 785-793, 2006
(30)H. L. Gualous, B. Mecheri, “Unsteady steam condensation flow patterns inside a miniature tube”, Applied Thermal Engineering, Vol. 27, 2007
(31)T. S. Zhao, Q. Liao, “Theoretical analysis of film condensation heat transfer inside vertical mini triangular channels”, International Journal of Heat and Mass Transfer, Vol. 45, pp. 2829-2842, 2002
(32)H. S. Wang, J. W. Rose, “A Theory of Film Condensation in Horizontal Noncircular Section Microchannels”, Transactions of the ASME, Journal of Heat Transfer, Vol. 127, pp. 1096-1105, 2005
(33)H. S., John W. Rose, “Film condensation in horizontal microchannels：Effect of channel shape”, International Journal of Thermal Sciences, Vol. 45, pp. 1205-1212, 2006
(34)W. J. Minkowycz, E. M. Sparrow, “ The effect of superheating on condensation heat transfer in a forced convection boundary layer flow”, International Journal of Heat and Mass Transfer, Vol. 12, pp.147-154, 1969
(35)J. Mitrovic, “Effect of vapor superheat and condensate subcooling on laminar filmwise condensation”, Transaction of the ASME, Vol. 122, pp. 192-196, 2000
(36)Kosky, P. G., and Staub, F. W., Local Condensing Heat Transfer Coefficients in the Annular Flow Regime. AIChE J. , Vol. 17, pp. 1037–1043, 1971.
(37)E.J. Le Fevre, J.W. Rose, “ A theory of heat transfer by dropwise condensation”, Proc. of 3rd Int. Heat Transfer Conf., Vol. 2, p.p. 362, 1966
(38)T Fujii, H Imura, “Natural convection heat transfer from a plate with arbitrary inclination”, International Journal of Heat and Mass Transfer, 1972
(39)M.M. Shah, “A general correlation for heat transfer during film condensation inside pipes, International Journal Heat Mass Transfer , Vol. 22, pp. 547–556, 1979
(40)Dittus, F. W., L. M. K. Boelter., Univ Calif. (Berkeley) Pub. Eng, Vol. 2, pp. 443, 1930
(41)A. Cavallini, G. Censi, D. Del Col, L. Doretti, G.A. Longo, L. Rossetto, C. Zilio, “Condensation inside and outside smooth and enhanced tubes — a review of recent research”, International Journal of Refrigeration, Vol. 26, pp. 373-392, 2003
(42) J. W. Rose, “Condensation heat transfer”, Heat and Mass Transfer, Vol. 35, pp. 479-485, 1999
(43) Suo, Griiffth, “Two-phase flow in capillary tubes”, Tran. ASME, Journal Heat Transfer, pp576-582, 1964