mass transfer operations - robert treybal
principles and modern applications of mass transfer operations, second edition
...
THEORY
103
2.5 MASS- AND HEAT -TRANSFER ANALOGIES
110
2.6 CONVECTIVE MASS- TRANSFER CORRELATIONS
119
2.6.1 Mass- Transfer Coefficients for Flat Plates
120
2.6.2 Mass- Transfer Coefficients ... movm2-s.
superficial liquid-phase molar velocity; mol/m2-s.
superficial gas-phase molar velocity; mol/m2-s.
superficial liquid -mass velocity; kg/m2-s.
superficial gas -...
MÔ HìNH HOá QUá TRìNH TRAO ĐổI NHIệT ẩM TRONG MáY ấP TRứNG GIA CầM Modeling of heat and mass transfer in chicken egg incubators
... present paper introduces a method of
modeling the process of heat and mass transfer in the space containing eggs in a non-linear
differential model . The model allowed to determine basic parameters ... các giả thiết nh sau:
- Trứng là hình cầu với đờng kính tơng đơng d
k
có cùng kích thớc và cấu tạo giống nhau.
- Phần trứng và phần rỗng trong khối trứng là đồng đều.
- Bỏ...
Endoreversible four-mass-reservoir chemical pump with diffusive mass transfer law
... and Environment Foundation - All rights reserved.
Keywords: Finite time thermodynamics; Four -mass- reservoir chemical pump; Finite-rate mass transfer;
Diffusive mass transfer law; Coefficient ... irreversible two -mass- reservoir chemical
pump with the irreversibility of mass transfer and the mass leak. Lin et al. [30] studied the performance
of the irreversible two -m...
Natural convection unsteady magnetohydrodynamic mass transfer flow past an infinite vertical porous plate in presence of suction and heat sink
... 6.8552 -0 .3046 4.1016 -0 .2363
2 12.1139 3.2345 8.1317 2.3879 5.4092 1.7626 3.5516 -1 .5804
7 16.1056 -9 .1989 5.9856 -8 .9066 4.2561 -5 .4226 2.8680 -4 .9101
9 18.1481 -1 0.812 5.5672 -1 0.508 4.0844 -6 .8703 ... vertical plate
with constant suction and mass transfer. Int. J. Heat Mass Trans.1977, 20, 136 3-1 373.
[5] Hossain M. A., Begum R. A. Effe...
Tài liệu MASS TRANSFER IN CHEMICAL ENGINEERING PROCESSES pdf
...
diffusive mass transfer is greater than the convective mass transfer, then resistance is said to
occur on the external surface of the particle and the CDP dominates. However, if the
diffusive mass transfer ...
10
-3
- 1 x 10
-4
are adopted. Solution convergence is set to occur for cases where scaled
residuals far all variables fall below 1 x 10
-3
, except fo...
CONVECTIVE HEAT AND MASS TRANSFER ppt
... heat transfer driving force
˜
B
h
Molar-flux-based heat transfer driving force
B
m
Mass- flux-based mass transfer driving force
˜
B
m
Molar-flux-based mass transfer driving force
Bi Biot number = ... heat transfer (m)
M Molar mass (kg/kmol)
Ma Mach number
m Mass fraction; dimensionless constant
m Mass (kg); mass of a single molecule (kg)
m
Mass flux (kg/m
2
s)
N Ratio...
Heat and Mass Transfer in Porous Media pdf
... Australian Department for
Environment and Heritage, Adelaide City Council, ISBN 97 8-0 -9 80512 6-4 -9 (print), ISBN
97 8-0 -9 80512 6-5 -6 (online) (2008)
Treatment of Rising Damp in Historical Buildings 23
... Guimarães, A.S.: Humidade Ascensional. FEUP edições,
ISBN: 97 8-9 7 2-7 5 2-1 0 1-2 , 1st edn. Porto (Portuguese) (2008)
2. de Freitas, V.P.: Transfer ncia de hu...
heat and mass transfer
... Applications
1.5 Mass transfer theories
The calculation of the mass transfer coefficient can be carried out in different ways.
Therefore a decision has to be made as to the type of problem, and which mass
transfer ... heat transfer coefficient W/(m
2
K)
β mass transfer coefficient m/s
β
m
mean mass transfer coefficient m/s
β thermal expansion coefficient 1/K
β polar angle, zenith a...
mass transfer principles and applications
...
Pressure
NA D
dC
dx
/ =-
qA k
dT
dx
/ =-
qA
d CpT
dx
/
()
=-a
r
FA
dv
dy
xqx
x
/ ==-tm
FA
dv
dy
xyx
x
/
()
=-tn
r
q/A v
ddp
dx
x
= =-
2
32m
qA v
Kdp
dx
x
/ = =-
m
MASS
TRANSFER
Principles and ... Sherwood Number 159
5.2 Mass Transfer Coefficients in Laminar Flow: Extraction from
the PDE Model 160
5.2.1 Mass Transfer Coefficients in Laminar Tubular Flow 162
5.2.2 Mass...
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