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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
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D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
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X
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Z
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Costing of air coolers
DOI 10.1615/hedhme.a.000459
4.8.3 Costing of air coolers
A. A. Smith
An air cooler is a combination of pressure vessel, structure, mechanical equipment, and electric drive. As such, cost levels vary with such diverse parameters as the following:
- Fin tube type
- Tube length
- Header type
- Structure finish
- Materials of construction
- Noise limits
- Drive type
Approximate air cooler costs are most often quoted on the basis of dollars per square meter of outside bare tube surface. In order to detail variations in cost at 1988 levels, let us consider a typical unit:
Size | 2,500 m2 bare surface |
Core tube | Steel-14 BWG, 25.4-mm OD |
Tube length | 9 m |
Fin pitch | 2.3 mm |
Fin material | Aluminum |
Fans | 4-bladed 60 m/s tip speed |
Drive | 22 KW max; V belt |
Draft | Forced |
Header | Plug |
Pressure | 700 kPa |
Structure finish | Galvanized |
Walkways | Header and motor access |
Ladders | To grade |
Tube rows | 6 |
Fin height | 16 mm |
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