Optimal performance of an endoreversible chemical pump with diffusive mass transfer law

2008 ◽  
Vol 27 (2) ◽  
pp. 39-47 ◽  
Author(s):  
Dan Xia ◽  
Lingen Chen ◽  
Fengrui Sun
Keyword(s):  
Mass Transfer ◽  
Optimal Performance ◽  
Diffusive Mass Transfer ◽  
Chemical Pump

Fundamental optimal relation of a generalized irreversible four-reservoir chemical pump

2008 ◽  
Vol 222 (8) ◽  
pp. 1523-1534 ◽  
Author(s):  
L Chen ◽  
D Xia ◽  
F Sun
Keyword(s):  
Mass Transfer ◽  
Characteristic Curve ◽  
Optimal Performance ◽  
Coefficient Of Performance ◽  
Working Fluid ◽  
Optimal Time ◽  
Energy Pumping ◽  
Internal Dissipation ◽  
Mass Leakage ◽  
Chemical Pump

A new cyclic model of a four-reservoir chemical pump with irreversible mass transfer, mass leakage, and internal dissipation is proposed in this paper. The optimal relation between the coefficient of performance (COP) and the rate of energy pumping of the generalized irreversible four-reservoir chemical pump is derived by using finite-time thermodynamics or thermodynamic optimization. The maximum COP and the corresponding rate of energy pumping, as well as the optimal time parameters of the four mass transfer processes and the optimal chemical potentials of the working fluid are also obtained. Moreover, the influences of these irreversibilities on the optimal performance of the chemical pump are revealed. It is found that the mass leakage affects the optimal performance qualitatively, and the characteristic curve changes from a monotonic decreasing function without mass leakage to a parabolic-like one with mass leakage; while the internal dissipation affects the optimal performance quantitatively, it does not change the shape of the characteristic curve but only decreases the peak value. The results obtained herein can provide some new theoretical guidelines for the optimal design and development of a class of chemical pumps.

Optimal performance of an endoreversible chemical engine with diffusive mass transfer law

2008 ◽  
Vol 222 (8) ◽  
pp. 1535-1539 ◽  
Author(s):  
L Chen ◽  
D Xia ◽  
F Sun
Keyword(s):  
Mass Transfer ◽  
Optimal Design ◽  
Power Output ◽  
Finite Time ◽  
Optimal Performance ◽  
Finite Time Thermodynamics ◽  
Design And Development ◽  
Optimal Operating ◽  
Diffusive Mass Transfer ◽  
Analytical Relations

The performance of an isothermal endoreversible chemical engine, in which the mass transfer obeys diffusive law, is analysed and optimized in this paper. The analytical relations about power output and efficiency, as well as the optimal relation between the power output and efficiency of the isothermal chemical engine are derived by using finite-time thermodynamics. Moreover, the optimal operating regions are studied. The results obtained herein can provide some new theoretical guidelines for the optimal design and development of a class of chemical engines.

Diffusive mass transfer in island films

1978 ◽  
Vol 125 (7) ◽  
pp. 489-525 ◽  
Author(s):  
Ya.E. Geguzin ◽  
Yu.S. Kaganovskii
Keyword(s):  
Mass Transfer ◽  
Diffusive Mass Transfer ◽  
Island Films

Microfluidics to determine the diffusive mass transfer of a low viscosity solvent into a high viscosity hydrocarbon

Fuel ◽  
2019 ◽  
Vol 235 ◽  
pp. 1327-1336 ◽  
Author(s):  
Kiarash Keshmiri ◽  
Mohammad Pourmohammadbagher ◽  
Haibo Huang ◽  
Neda Nazemifard
Keyword(s):  
Mass Transfer ◽  
High Viscosity ◽  
Low Viscosity ◽  
Diffusive Mass Transfer
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