scholarly journals Numerical and experimental study of absorption of H2O vapor in wavy falling film of LiBr aqueous solution in vertical tubes and in presence of non-absorbables

2019 ◽  
Vol 100 ◽  
pp. 184-195 ◽  
Author(s):  
E. García-Rivera ◽  
J. Castro ◽  
J. Farnós ◽  
C. Oliet
Keyword(s):  
Aqueous Solution ◽  
Experimental Study ◽  
Falling Film ◽  
Vertical Tubes

Multi-Pathway Excited State Relaxation of Adenine Oligomers in Aqueous Solution: A Joint Theoretical and Experimental Study

2013 ◽  
Vol 19 (11) ◽  
pp. 3762-3774 ◽  
Author(s):  
Akos Banyasz ◽  
Thomas Gustavsson ◽  
Delphine Onidas ◽  
Pascale Changenet-Barret ◽  
Dimitra Markovitsi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Experimental Study ◽  
Excited State

Experimental study of the flow characteristics in a falling film liquid desiccant dehumidifier

2016 ◽  
Vol 23 (1) ◽  
pp. 157-165 ◽  
Author(s):  
Yimo Luo ◽  
Yi Chen ◽  
Dan Zhong ◽  
Yuanhao Wang ◽  
Hongxing Yang
Keyword(s):  
Experimental Study ◽  
Flow Characteristics ◽  
Falling Film ◽  
Liquid Desiccant

Evaluation of General Correlations for Heat Transfer During Boiling of Saturated Liquids in Tubes and Annuli

2005 ◽  
Author(s):  
M. Mohammed Shah
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Large Deviations ◽  
Boiling Heat Transfer ◽  
Mean Deviation ◽  
Data Sets ◽  
Vapor Quality ◽  
Dimensional Parameters ◽  
Vertical Tubes ◽  
Reduced Pressures

Six of the most verified correlations for boiling heat transfer were compared to data for horizontal and vertical tubes and annuli. The correlations evaluated were: Chen (1966), Shah (1982), Gungor and Winterton (1986), Liu & Winterton (1991), Kandlikar (1990), and Steiner and Taborek (1992). The database used to evaluate these correlations included 29 fluids: water, refrigerants, cryogens, organic and inorganic chemicals. The data cover reduced pressures from 0.005 to 0.783, mass flux from 28 to 11071 kg/m2s, vapor quality from 0 to 0.95, and boiling number from 0.000026 to 0.00742. The correlations of Shah and Gungor & Winterton gave the best agreement with data with a mean deviation of about 17.5%, only a couple of data sets showing large deviations. The paper presents and discusses the results of this study. Included are tables giving the range of dimensional and non-dimensional parameters covered by each experimental study.

scholarly journals Influence of viscosity, surface tension, and inclination angle on motion of long bubbles in closed tubes

1966 ◽  
Vol 25 (4) ◽  
pp. 821-837 ◽  
Author(s):  
E. E. Zukoski
Keyword(s):  
Experimental Study ◽  
Surface Tension ◽  
Inclination Angle ◽  
Bubble Velocity ◽  
Vertical Tubes

An experimental study has been made of the motion of long bubbles in closed tubes. The influence of viscosity and surface tension on the bubble velocity is clarified. A correlation of bubble velocities in vertical tubes is suggested and is shown to be useful for the whole range of parameters investigated. In addition, the effect of tube inclination angle on bubble velocity is presented, and certain features of the flow are described qualitatively.

Experimental Study of Adsorption of Ammonia Nitrogen from Wastewater onto the Bagasse Adsorbent

2014 ◽  
Vol 529 ◽  
pp. 22-25 ◽  
Author(s):  
Li Wei Xie ◽  
Ze Long Xu ◽  
Yan Hua Huang ◽  
Shuang Cao ◽  
Zong Qiang Zhu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Experimental Study ◽  
Adsorption Capacity ◽  
Ammonia Nitrogen ◽  
Alkaline Condition ◽  
Maximum Adsorption Capacity ◽  
Initial Concentration ◽  
Adsorption Capacities ◽  
Neutrality Condition ◽  
Adsorbent Dose

Adsorption of ammonia nitrogen from aqueous solution onto the bagasse adsorbent has been investigated to evaluate the effects of Adsorbent dose, initial NH4+-N concentration, and pH on the removal systematically. With increasing initial concentration, the amount of ammonia nitrogen sorbed onto the adsorbent increased until it gradually decreased due to the initial concentration exceed 50 mg·L-1, and the maximum adsorption capacity was observed for the sample to be 1.31 mg·g-1 at the initial concentration of 30 mg·L-1, and the corresponding removal rates decreased from 94.01 to 3.89%, with increase in initial concentration from 5 to 100 mg·L-1. Adsorption capacities decreased from 6.04 to 0.49 mg·g-1 with increasing adsorbent dose from 0.1 to 1.5g. What’s more, under alkaline condition, the removal efficiency of ammonia nitrogen from aqueous solution onto the samples were superior to that under acidity and neutrality condition.

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