...J. A. Hernández-Magallanes; W. Rivera This paper reports the experimental data of boiling heat transfer coefficients for the ammonia–lithium nitrate mixture in a laminar falling film. The analyzed heat exchanger consists of a shell with an internal helical coil. More than one hundred test runs were...

... transfer irreversibilities. More details concerning the contribution of each kind of irreversibility to entropy generation through the falling film are graphically presented and discussed. entropy generation chemical reaction falling film absorber The notions of entropy and its generation...

... Temperature Differentials ,” Proceedings of the Fifth Ocean Thermal Energy Conversion (OTEC) , Miami, pp. VI-161 – VI-180 . [2] Chyu , M.-C. and Bergles , A. E. , 1987 , “ An Analytical and Experimental Study of Falling-Film Evaporation on a Horizontal Tube ,” ASME J. Heat Transfer , 109...

.... Assoc. Editor: Ali Ebadian. 22 01 2012 23 10 2012 An experimental study was conducted to investigate the effects of tube row on surface wetting and heat transfer of a horizontal-tube, falling-film evaporator. Two types of the evaporator tubes were used for comparison: plain copper...

... than that for round tubes, and the hysteresis in mode transitions is not as pronounced as for round tubes. The transitional Re increases slowly with tube spacing, also in contrast to observations of round-tube falling films. The flat-tube falling-film flow regimes are described, and new correlations...

...Jing Peng; Ming-Ming Wang; Jiao Geng; You-Ting Wu; Zhi-Bing Zhang The flow characteristics of falling film of amino acid ionic liquid (AAIL) aqueous solution on a uniformly heated vertical plane have been experimentally studied. The infrared images and temperature profiles have been determined...

... the correlation for the minimum wetting rate. However, the minimum wetting rate calculated with the correlation was considerably larger than the measured values. Koizumi et al. ( 5 ) carefully conducted minimum wetting rate experiments on an adiabatic falling film flow. They confirmed that the wave motion...

...Nitin Goel; D. Yogi Goswami This paper presents an experimental study of a new concept of using a screen mesh to enhance heat and mass transfer in a microchannel falling film absorber. Results of the experiments on the conventional and mesh-enhanced microchannel absorber designs are then reported...

...Nitin Goel; D. Yogi Goswami The paper presents a new design of a falling film absorber that could considerably reduce the absorber size without penalizing the vapor and coolant side pressure drops. The proposed design is based on the fundamental characteristics of an efficient absorber design...