3 examples of heat transfer by convection
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
Ngày tải lên :
05/09/2013, 16:10
... Journal of Heat Mass Transfer 20 03; 30 (2): 241-250.
[17] Bhagoria J.L. and Sahu M.M. Augmentation of heat transfer coefficient by using 900 broken
transverse ribs on absorber plate of solar air heater, ... Transactions of the ASME Journal of turbo machinery 1991b; 1 13: 36 7-
37 4.
[8] Hu Z. and Shen J. Heat transfer enhancement in a conversing passage with discrete ribs. Int.
Journal Heat and Mass Transfer ... Investigation of heat transfer and friction for rib-
roughened surfaces, Int. Journal of Heat & Mass Transfer 1978; 21: 11 43- 1156.
[4] Webb R.L., Eckert E.R.G. and Goldstein R. J. Heat transfer...
- 12
- 831
- 0
Ptinciples of heat transfer
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08/04/2014, 11:00
... Basic Modes of Heat Transfer 2
1.1 The Relation of Heat Transfer to Thermodynamics 3
1.2 Dimensions and Units 7
1 .3 Heat Conduction 9
1.4 Convection 17
1.5 Radiation 21
1.6 Combined Heat Transfer ... ft
3
) 1 Btu/(h и ft
3
) ϭ 10 .34 3 W/m
3
per unit volume
Heat transfer coefficient 1 W/(m
2
и K) ϭ 0.1761 Btu/(h и ft
2
и °F) 1 Btu/(h и ft
2
и °F) ϭ 5.678 W/(m
2
и K)
Heat transfer rate 1 W ϭ 3. 412 ... Introduction 231
4.2 Convection Heat Transfer 231
4 .3 Boundary Layer Fundamentals 233
4.4 Conservation Equations of Mass, Momentum, and Energy for Laminar Flow Over
a Flat Plate 235
4.5 Dimensionless...
- 784
- 1.2K
- 0
molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên :
06/05/2014, 08:55
... Study of Light-to -heat Absorption
Mechanism in atomic Systems," International Journal of Heat
and Mass Transfer, 41, pp. 839 -849.
3. Häkkinen, H., and Landman, U., 19 93, "Superheating, ... 39 , pp. 37 5-
37 7.
5. Kotake, S., and Kuroki, M., 19 93, "Molecular Dynamics
Study of Solid Melting and Vaporization by Laser Irradiation,"
International Journal of Heat and Mass Transfer, ...
surface of the target by scaling velocities of atoms in cells on
the top surface, and the same amount of heat flux is dissipated
from the bottom of the target by scaling velocities of atoms...
- 10
- 505
- 0
molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên :
06/05/2014, 08:57
... â 2001 by ASME
Proceedings of NHTC'01
35 th National Heat Transfer Conference
Anaheim, California, June 10-12, 2001
NHTC2001-20070
MOLECULAR DYNAMICS SIMULATION OF HEAT TRANSFER ...
surface of the target by scaling velocities of atoms in cells on
the top surface, and the same amount of heat flux is dissipated
from the bottom of the target by scaling velocities of atoms ... 10
0
2 10
-3
4 10
-3
6 10
-3
8 10
-3
0 100 200 30 0 400 500
MD Simulation
Maxwell's Distribution
Probability
Velocity (m/s)
Figure 1. Comparison of the velocity distribution by the MD
simulation...
- 10
- 429
- 0
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 1 of 3
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... 29
Summary 30
CHANGE OF PHASE 31
Classification of Properties 31
Saturation 33
Saturated and Subcooled Liquids 33
Quality 34
Moisture Content 35
Saturated and Superheated Vapors 35
Constant Pressure Heat ... latent heat. The first is the latent heat of fusion. This
is the amount of heat added or removed to change phase between solid and liquid. The second
type of latent heat is the latent heat of vaporization. ... different magnitudes by the addition of heat. When a given
amount of heat is added to different substances, their temperatures increase by different amounts.
The ratio of the heat (Q) added to or...
- 138
- 1.5K
- 0
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 2 of 3
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... modes of heat transfer:
Conduction involves the transfer of heat by the interactions of atoms or molecules of a
material through which the heat is being transferred.
Convection involves the transfer ... 1
Heat and Temperature 1
Heat and Work 2
Modes of Transferring Heat 2
Heat Flux 3
Thermal Conductivity 3
Log Mean Temperature Difference 3
Convective Heat Transfer Coefficient 4
Overall Heat Transfer ... HT-02
Heat Transfer CONVECTION HEAT TRANSFER
Summary
The important information in this chapter is summarized below.
Convection Heat Transfer Summary
ã Convection heat transfer is the transfer of...
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- 1.6K
- 0
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 3 of 3
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... Equation 32
Minor Losses 34
Equivalent Piping Length 34
Summary 36
NATURAL CIRCULATION 37
Forced and Natural Circulation 37
Thermal Driving Head 37
Conditions Required for Natural Circulation 38
Example ... measured by the pull of
gravity on a body. The specific volume of a substance is the volume per unit mass of the
substance. Typical units are ft
3
/lbm. Density, on the other hand, is the mass of a ... ˙m
outlets
˙m
12
˙m
10
˙m
8
˙m
8
˙m
12
˙m
10
(ρAv)
8
˙m
12
(ρAv)
10
v
8
˙m
12
(ρAv)
10
(ρA)
8
500
lbm
sec
62.4
lbm
ft
3
(0.545 ft
2
)
10
ft
sec
62.4
lbm
ft
3
(0 .34 9 ft
2
)
v
8
7 .3
ft
sec
Summary
The main points of this chapter are summarized on the next page.
Rev. 0 Page 15 HT- 03
...
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- 0
Tài liệu Báo cáo khoa học: Analysis of oxidative events induced by expanded polyglutamine huntingtin exon 1 that are differentially restored by expression of heat shock proteins or treatment with an antioxidant ppt
Ngày tải lên :
19/02/2014, 06:20
... al.
30 78 FEBS Journal 2 73 (2006) 30 7 630 93 ê 2006 The Authors Journal compilation ê 2006 FEBS
The Hsp27(C 137 A) mutant is characterized by the sub-
stitution of the unique cysteine residue of Hsp27 ... inclusions and oxidation
FEBS Journal 2 73 (2006) 30 7 630 93 ê 2006 The Authors Journal compilation ê 2006 FEBS 30 93
downstream of the initiator ATG in exon 1 (Ex1) of
the 67 exon-containing htt gene ... Huntingtin inclusions and oxidation
FEBS Journal 2 73 (2006) 30 7 630 93 ê 2006 The Authors Journal compilation ê 2006 FEBS 30 83
16 Wyttenbach A (2004) Role of heat shock proteins dur-
ing polyglutamine...
- 18
- 721
- 0
Báo cáo khoa học: Differential recognition of heat shock elements by members of the heat shock transcription factor family ppt
Ngày tải lên :
07/03/2014, 00:20
... 20
WT
n159
n355
n217
n178
A
I186P
L140P
159
178
217
35 5
VP16
4 93
HR-A/BDBD
VP16
VP16
VP16
VP16
VP16
VP16
Fold activation
0
4 93
4 93
C
B
240
100
140
70
175
62
83
47.5
n355
WT
n217
n178
L140P
n159
I186P
32 .5
25
D
3P SG3PSG3PSG
WT I186PL140P
EGS ... Acids Res 26,
2580–2585.
33 Zuo J, Rungger D & Voellmy R (1995) Multiple layers
of regulation of human heat shock transcription
factor 1. Mol Cell Biol 15, 431 9– 433 0.
34 Fujimoto M, Oshima K, ... 32 82 32 94.
36 Rabindran SK, Haroun RI, Clos J, Wisniewski J & Wu
C (19 93) Regulation of heat shock factor trimer forma-
tion: role of the conserved leucine zipper. Science 259,
230 – 234 .
37 ...
- 13
- 507
- 0
Báo cáo khoa học: Regulation of arginase II by interferon regulatory factor 3 and the involvement of polyamines in the antiviral response potx
Ngày tải lên :
07/03/2014, 21:20
... involves spermine
FEBS Journal 272 (2005) 31 2 031 31 ê 2005 FEBS 31 31
Regulation of arginase II by interferon regulatory factor 3
and the involvement of polyamines in the antiviral
response
Nathalie ... IRF -3- mediated antiviral response involves spermine
FEBS Journal 272 (2005) 31 20 31 31 ª 2005 FEBS 31 23
polyamines were induced in response to the expression
of a constitutively active form of ... Chem 30 , 30 .
35 Shah N, Thomas T, Shirahata A, Sigal LH & Thomas
TJ (1999) Activation of nuclear factor kappaB by poly-
amine in breast cancer cells. Biochemistry 38 , 147 63
14774.
36 Shah...
- 12
- 498
- 0