Two-Phase Flow Heat and Mass Transfer Model Construction and Experiment Study of the Fuel Evaporation Progress

2012 ◽  
Vol 614-615 ◽  
pp. 174-180
Author(s):  
Bo Yun Liu ◽  
Jin Yun Pu ◽  
Xiang Lie Yi
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Two Phase Flow ◽  
Time Dependent ◽  
Transfer Model ◽  
Phase Flow ◽  
Two Phase ◽  
Dependent Behavior ◽  
Mass Evaporation ◽  
Hot Surface

As for the time-dependent behavior of the fuel heat and mass evaporation transfer progress on hot surface,consider the convective mass transfer and heat transfer, the liquid-gas two-phase flow of continuous heat transfer model was studied. By the dimensionless transform, the time-dependent behavior of the concentration distribution and the temperature field was obtained. The result of n-Heptanes evaporation transfer progress on hot surface experiment is consistent with the academic model.

Analytical Simulation of Annular Two-Phase Flow Considering the Four Involved Mass Transfers

2012 ◽  
Vol 134 (8) ◽  
Author(s):  
Zahra Baniamerian ◽  
Ramin Mehdipour ◽  
Cyrus Aghanajafi
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Fluid Flow ◽  
Analytical Model ◽  
Two Phase Flow ◽  
Experimental Models ◽  
Analytical Models ◽  
Phase Flow ◽  
Two Phase Flows ◽  
Two Phase

Efficiently employing two-phase flows for cooling objectives requires comprehensive knowledge of their behavior in different conditions. Models, capable of predicting heat transfer and fluid flow trends in this area, are of great value. Numerical/analytical models in the literature are one-dimensional models involving with many simplifying assumptions. These assumptions in most cases include neglecting some mechanisms of mass transfer in two-phase flows. This study is devoted to developing an analytical two-dimensional model for simulation of fluid flow and mass transfer in two-phase flows considering the all mass transfer mechanisms (entrainment, evaporation, deposition and condensation). The correlation employed for modeling entrainment in this study, is a semiempirical correlation derived based on physical concept of entrainment phenomenon. Emphasis is put on the annular flow pattern of liquid vapor two-phase flow since this regime is the last encountered two-phase regime and has a higher heat transfer coefficient among other two-phase flow patterns. Attempts are made to employ the least possible simplification assumptions and empirical correlations in the modeling procedure. The model is then verified with experimental models of Shanawany et al., Stevanovic et al. and analytical model of Qu and Mudawar. It will be shown, considering pressure variations in both radial and axial directions along with applying our semiempirical entrainment correlation has improved the present analytical model accuracy in comparison with the accuracy of available analytical models.

CONVECTIVE HEAT TRANSFER OF AN IMPINGING OIL JET BETWEEN A TWO-PHASE FLOW AND A HOT SURFACE

2012 ◽  
Vol 22 (3) ◽  
pp. 185-205
Author(s):  
Ludovic Osmar ◽  
S. Vincent ◽  
J.-P. Caltagirone ◽  
David Reungoat ◽  
G. Mermaz-Rollet
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Oil Jet ◽  
Hot Surface

A Mechanistic Heat Transfer Model for Vertical Two-Phase Flow

2003 ◽  
Author(s):  
Ryo Manabe ◽  
Qian Wang ◽  
Hong-Quan Zhang ◽  
Cem Sarica ◽  
James P. Brill
Keyword(s):  
Heat Transfer ◽  
Two Phase Flow ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Phase Flow ◽  
Two Phase

A Mechanistic Model for Predicting Heat and Mass Transfer in Vertical Two-Phase Flow

Volume 3 ◽  
2004 ◽  
Author(s):  
Siamack A. Shirazi ◽  
Ebrahin Al-Adsani ◽  
John R. Shadley ◽  
Edmund F. Rybicki
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Two Phase Flow ◽  
Mechanistic Model ◽  
Intermittent Flow ◽  
Phase Flow ◽  
Empirical Correlations ◽  
Transfer Coefficients ◽  
Two Phase

The mass transfer coefficient plays an important role in predicting corrosion rates. Using similarities between heat and mass transfer mechanisms, a mechanistic model is proposed to predict heat and mass transfer coefficients for two-phase flow in vertical pipes. The mechanistic model is evaluated by using water-air heat transfer experimental data obtained from the literature. The mechanistic model is also compared with commonly used empirical correlations. In comparison with available heat transfer correlations, the mechanistic model performs very well for vertical annular flow, bubbly flow and slug or intermittent flow that were considered. The mechanistic model is based on physics of two-phase flow and thus is expected to be more general than empirical correlations.

MULTI-SCALE MASS TRANSFER MODEL FOR GAS-SOLID TWO-PHASE FLOW

2005 ◽  
Vol 192 (12) ◽  
pp. 1636-1654 ◽  
Author(s):  
Linna Wang ◽  
Ning Yang ◽  
Jinghai Li
Keyword(s):  
Mass Transfer ◽  
Two Phase Flow ◽  
Transfer Model ◽  
Phase Flow ◽  
Mass Transfer Model ◽  
Two Phase ◽  
Multi Scale

Heat transfer model of two-phase flow across tube bundle in submerged combustion vaporizer

2019 ◽  
Vol 27 (3) ◽  
pp. 613-619
Author(s):  
Jiajun Song ◽  
Dongyan Han ◽  
Qinqin Xu ◽  
Dan Zhou ◽  
Jianzhong Yin
Keyword(s):  
Heat Transfer ◽  
Two Phase Flow ◽  
Tube Bundle ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Phase Flow ◽  
Two Phase ◽  
Submerged Combustion

scholarly journals Prediction of flow boiling heat transfer coefficient for carbon dioxide in minichannels and conventional channels

2016 ◽  
Vol 37 (2) ◽  
pp. 89-106 ◽  
Author(s):  
Dariusz Mikielewicz ◽  
Blanka Jakubowska
Keyword(s):  
Heat Transfer ◽  
Carbon Dioxide ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Two Phase Flow ◽  
Flow Boiling ◽  
Transfer Model ◽  
Phase Flow ◽  
Two Phase ◽  
Selection Of

AbstractIn the paper presented are the results of calculations using authors own model to predict heat transfer coefficient during flow boiling of carbon dioxide. The experimental data from various researches were collected. Calculations were conducted for a full range of quality variation and a wide range of mass velocity. The aim of the study was to test the sensitivity of the in-house model. The results show the importance of taking into account the surface tension as the parameter exhibiting its importance in case of the flow in minichannels as well as the influence of reduced pressure. The calculations were accomplished to test the sensitivity of the heat transfer model with respect to selection of the appropriate two-phase flow multiplier, which is one of the elements of the heat transfer model. For that purpose correlations due to Müller-Steinhagen and Heck as well as the one due to Friedel were considered. Obtained results show a good consistency with experimental results, however the selection of two-phase flow multiplier does not significantly influence the consistency of calculations.

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