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Absorbing media, interaction phenomena in,
Absorption of thermal radiation:
Absorption coefficient,
Absorption spectra in gases,
Absorptivity:
Acentric factor:
Acetaldehyde:
Acetic acid:
Acetic anhydride:
Acetone:
Acetonitrile:
Acetophenone:
Acetylene:
Acetylenes
Ackerman correction factor in condensation,
Acoustic methods, for fouling mitigation,
Acoustic vibration of heat exchangers,
Acrolein:
Acrylic acid:
Active systems for augmentation of heat transfer:
Additives:
Adiabatic flows, compressible, in duct,
Admiralty brass,
Advanced models for furnaces,
Agitated beds, heat transfer to,
Agitated vessels,
Ahmad scaling method for critical heat flux in flow boiling of nonaqueous fluids,
Air:
Air-activated gravity conveyor,
Air-cooled heat exchangers:
Air preheaters, fouling in,
Albedo for single scatter in radiation,
Alcohols:
Aldehydes:
Aldred, D L,
Allyl alcohol:
Allyl chloride (-chloropropane)
Alternating direction (ADR) method, for solution of implicit finite difference equations,
Aluminum, spectral characteristics of anodized surfaces,
Aluminum alloys, thermal and mechanical properties,
Aluminium brass,
Ambrose-Walton corresponding states method, for vapour pressure,
Amides:
Amines:
Ammonia:
tert-Amyl alcohol:
Analogy between heat and mass and momentum transfer
Analytical solution of groups, for calculation of thermodynamic
Anelasticity,
Angled tubes, use in increasing flooding rate in reflux condensation,
Aniline:
Anisotropy of elastic properties,
Annular distributor in shell-and-tube heat exchangers,
Annular ducts:
Annular (radial) fins, efficiency
Annular flow (gas-liquid):
Annular flow (liquid-liquid),
Annular flow (liquid-liquid-gas),
Anti-foulants,
Antoine equation, for vapour pressure,
Aqueous solutions, as heat transfer media,
Arc welding of tubes into tube sheets:
Archimedes number,
Area of tube outside surface in shell-and-tube heat exchangers:
Argon:
Arithmetic mean temperature difference, definition,
Armstrong, Robert C
Aromatics:
ASME VIII code, for mechanical design of shell-and-tube heat exchangers:
Assisted convection:
Attachment, of fouling layers,
Augmentation of heat transfer
Austenitic stainless steels,
Average phase velocity in multiphase flows,
Axial flow reboilers,
Axial wire attachments, for augmentation of condensation,
Azeotropes, condensation of
Index
HEDH
A
Absorbing media, interaction phenomena in,
Absorption of thermal radiation:
Absorption coefficient,
Absorption spectra in gases,
Absorptivity:
Acentric factor:
Acetaldehyde:
Acetic acid:
Acetic anhydride:
Acetone:
Acetonitrile:
Acetophenone:
Acetylene:
Acetylenes
Ackerman correction factor in condensation,
Acoustic methods, for fouling mitigation,
Acoustic vibration of heat exchangers,
Acrolein:
Acrylic acid:
Active systems for augmentation of heat transfer:
Additives:
Adiabatic flows, compressible, in duct,
Admiralty brass,
Advanced models for furnaces,
Agitated beds, heat transfer to,
Agitated vessels,
Ahmad scaling method for critical heat flux in flow boiling of nonaqueous fluids,
Air:
Air-activated gravity conveyor,
Air-cooled heat exchangers:
Air preheaters, fouling in,
Albedo for single scatter in radiation,
Alcohols:
Aldehydes:
Aldred, D L,
Allyl alcohol:
Allyl chloride (-chloropropane)
Alternating direction (ADR) method, for solution of implicit finite difference equations,
Aluminum, spectral characteristics of anodized surfaces,
Aluminum alloys, thermal and mechanical properties,
Aluminium brass,
Ambrose-Walton corresponding states method, for vapour pressure,
Amides:
Amines:
Ammonia:
tert-Amyl alcohol:
Analogy between heat and mass and momentum transfer
Analytical solution of groups, for calculation of thermodynamic
Anelasticity,
Angled tubes, use in increasing flooding rate in reflux condensation,
Aniline:
Anisotropy of elastic properties,
Annular distributor in shell-and-tube heat exchangers,
Annular ducts:
Annular (radial) fins, efficiency
Annular flow (gas-liquid):
Annular flow (liquid-liquid),
Annular flow (liquid-liquid-gas),
Anti-foulants,
Antoine equation, for vapour pressure,
Aqueous solutions, as heat transfer media,
Arc welding of tubes into tube sheets:
Archimedes number,
Area of tube outside surface in shell-and-tube heat exchangers:
Argon:
Arithmetic mean temperature difference, definition,
Armstrong, Robert C
Aromatics:
ASME VIII code, for mechanical design of shell-and-tube heat exchangers:
Assisted convection:
Attachment, of fouling layers,
Augmentation of heat transfer
Austenitic stainless steels,
Average phase velocity in multiphase flows,
Axial flow reboilers,
Axial wire attachments, for augmentation of condensation,
Azeotropes, condensation of
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
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Input Data and Recommended Practices
DOI 10.1615/hedhme.a.000251
3.3.5 Input data and recommended practices
J. Taborek
In this section we deal with three subjects:
- The basic set of input data as required for shell-side rating calculations, but also including those required for design of the overall exchanger, that is, including tube-side flow. These are presented in Table 1.
- Detailed comments to the input data, to give guidance to the designer as to proper practices and standards.
- Preliminary calculations of correlational parameters derived from the input data, as required for subsequent calculations.
Table 1 Input data required for rating of segmentally baffled shell-and-tube exchangers
Item | Symbol | Units | Description |
---|---|---|---|
Shell-side geometry data | |||
Tube and tube layout | |||
1 | Ds | mm | Inside shell diameter |
2 | Dt | mm | Tube outside diameter |
3 | Ltw | mm | Tube wall thickness |
4 | Dti | mm | Inside tube diameter |
5 | λtw | W/m K | Tube wall material thermal conductivity |
6 | Ltp | mm | Tube layout pitch |
7 | θtp | deg | Tube layout characteristic angle |
Tube length (Refer to Figure 2) | |||
8 | Lto | mm | Overall nominal tube length |
9 | Lti | mm | Baffled tube length |
10 | Lta | mm | Effective tube length for heat transfer area |
Baffle geometry (Figure 7) | |||
11 | Bc | % | Baffle cut as percent of Ds |
12 | Lbc | mm | Central baffle spacing |
13a | Lbi | mm | Inlet baffle spacing (optional) |
13b | Lbo | mm | Outlet baffle spacing (optional) |
Nozzle | |||
14 | CN | code | Shell-side nozzle, impingement protection, annular distributor |
Tube bundle geometry | |||
15 | Ntt | Total number of tubes or holes in tubesheet for U-tubes | |
16 | Ntp | Number of tube passes | |
17 | Nss | Number of sealing strips (pairs) | |
18 | CB | code | Tube bundle type (FX, UT, SRFH, PFH, PTFH) |
19 | Ltb | mm | Tube OD (Dt)-to-baffle hole clearance (diametral), Figure 12 |
20 | Lsb | mm | Inside shell-to-baffle clearance (diametral), Figure 13 |
21 | Lbb | mm | Inside shell-to-tube bundle bypass clearance (diametral), Figure 14 |
Temperatures | |||
22 | Tsi | °C | Shell-side temperature inlet |
23 | Tso | °C | Shell-side temperature outlet |
24 | Tti | °C | Tube-side temperature inlet |
25 | Tto | °C | Tube-side temperature outlet |
Shell-side process information | |||
26 | Ṁs | kg/s | Shell fluid mass flow rate |
At shell fluid mean temperature | |||
27 | ρs | kg/m3 | Density |
28 | λs | W/m K | Thermal conductivity |
29 | (cp)s | J/kg K | Specific heat |
30 | ηs | cP = mPa/s | Dynamic viscosity (may require two values) |
31 | Rf,o | mK/W | Shell-side fouling resistance (referred to shell-side surface) |
Tube-side process information | |||
32 | Ṁt | kg/s | Tube fluid mass flow rate |
At tube fluid mean temperature | |||
33 | ρt | kg/m3 | Density |
34 | λt | W/m K | Thermal conductivity |
35 | (cp)t | J/kg K | Specific heat |
36 | ηt | cP = mPa/s | Dynamic viscosity (may require two values) |
37 | Rf,i | m K/W | Tube-side fouling resistance (referred to inside tube surface) |
Special information | |||
38 | αs | W/m2 K | Shell-side heat transfer coefficient; if specified, omit items as shown in comments |
39 | αt | W/m2 K | Tube-side heat transfer coefficient; if specified, omit items as shown in comments |
40 | (Δps)max | kPa | Maximum permissible pressure drop, shell side |
41 | (Δpt)max | kPa | Maximum permissible pressure drop, tube side |
42 | (vt)max | m/s | Maximum permissible tube-side flow velocity (optional) |
43 | (vt)min | m/s | Minimum acceptable tube-side flow velocity (optional) |
A. Basic input data
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