Heat transfer solutions in laminar co-current flow of immiscible liquids

1990 ◽  
Vol 25 (6) ◽  
pp. 361-367 ◽  
Author(s):  
E. Nogueira ◽  
R. M. Cotta
Keyword(s):  
Heat Transfer ◽  
Current Flow ◽  
Immiscible Liquids

scholarly journals Study on condensation heat transfer of binary of immiscible liquids. Experimental study.

1991 ◽  
Vol 57 (535) ◽  
pp. 1009-1013
Author(s):  
Akira TAKIMOTO ◽  
Tsunenobu TERANISHI ◽  
Kanji HANEDA ◽  
Yujiro HAYASHI
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Condensation Heat Transfer ◽  
Immiscible Liquids

scholarly journals Mathematical Modeling of the Mixing and Heat Transfer in Turbulent Two-Phase Jets of Mutually Immiscible Liquids

2020 ◽  
Vol 15 ◽  
Keyword(s):  
Heat Transfer ◽  
Turbulent Jets ◽  
Stationary Flow ◽  
Multiphase System ◽  
Two Phase ◽  
Immiscible Liquids ◽  
Transfer Processes ◽  
Cylindrical Coordinate ◽  
The Mathematical Model ◽  
Two Fluid

The paper is devoted to the development and analysis of the mathematical model for mixingand heat transfer in the two-fluid turbulent heterogeneous jet of mutually immiscible liquids. Many natural andtechnical processes deal with the turbulent jets of mutually immiscible liquids, which represent an importantclass of the modern multiphase system dynamics. Differential equations for the axially symmetrical twodimensional stationary flow and the integral correlations in a cylindrical coordinate system are considered forthe jet of fluid flowing from a nozzle into a pool of another fluid immiscible with the first one. The results maybe of interest for researchers and engineers in the multiphase turbulent jets, mixing and heat transfer processes.

Modeling an Integral Dual Solar/Gas Fired Generator for a Water-Lithium Bromide Absorption Chiller

1999 ◽  
Author(s):  
Jiming Cao ◽  
Richard N. Christensen
Keyword(s):  
Heat Transfer ◽  
Natural Gas ◽  
Solar Energy ◽  
Current Flow ◽  
Lithium Bromide ◽  
Absorption Chiller ◽  
Transfer Resistance ◽  
Subcooled Liquid ◽  
Bromide Solution ◽  
Lithium Bromide Solution

Abstract This paper presents a design process for a dual solar/gas fired generator. A generator fired by solar energy and/or natural gas for a water-lithium bromide absorption chiller of 25 refrigeration tons (RT) was modeled. The natural gas is considered as the backup heat when the solar energy is unavailable or insufficient. The flue gas and the water-lithium bromide solution are in co-current flow, while the solar fluid and the water-lithium bromide solution are in counter-current flow. Fifty fluted tubes were installed vertically between two concentric cylindrical tubes. A solid ceramic insert was used to enhance heat transfer on the gas side that is considered as having the dominant heat transfer resistance. The burner is installed inside the smaller cylindrical tube. The solar fluid from the solar collector enters the generator through the fluted tubes while the water-lithium bromide mixture flows in the annular channel around the fluted tubes as a subcooled liquid. The generator is divided into two regions according to the heat transfer mechanism: subcooled liquid region and desorption region. In this model, a simultaneous solar and gas fired desorption process was investigated. The amount of makeup heat needed from natural gas was determined as a function of the solar fluid flow rate. Local temperature profiles were predicted by the model.

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