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Baffle leakage in shell-and-tube heat exchangers:
Baffles in shell-and-tube heat exchangers:
Baker flow regime map for horizontal gas-liquid flow,
Balance equation (applied to complete equipment),
Band dryer:
Bandel and Schlunder correlations, for boiling in horizontal tubes,
Basket-type evaporator,
Barbosa, J R Jr,
Bateman, G,
Bayonet tube heat exchangers, constructional features of,
Bayonet tube evaporators,
Beaton, C F,
Beer-Lambert law,
Bejan, A,
Bell-Delaware method for shell-side heat transfer and pressure drop in shell-and-tube heat exchangers,
Bell and Ghaly method for calculation of multicomponent condensation,
Benard cells in free convection in horizontal fluid layers,
Bends:
Benzaldehyde:
Benzene:
Benzoic acid:
Benzonitrile:
Benzophenone:
Benzyl alcohol:
Benzyl chloride:
Berenson equation for pool film boiling from a horizontal surface,
Bergles, Arthur E,
Bernoulli equation, application to flow across cylinders,
Bimetallic tubes:
Binary mixtures:
Bingham fluid (non-Newtonian),
Biofouling,
Biot number:
Biphenyl:
Bismarck A,
Black liquor, in pulp and paper industry, fouling of heat exchangers by,
Black surface:
Blackbody radiation,
Blades, in scraped surface heat exchangers,
Blake-Carmen-Kozeny equation,
Blasius equation for friction factor,
Blenkin, R,
Blunt bodies, drag coefficients for,
Boilers:
Boiling:
Boiling curve:
Boiling length:
Boiling number, definition,
Boiling point, normal,
Boiling range (in multicomponent mixtures):
Boiling surface in boiling in vertical tubes,
Boiling Water Reactor (BWR), fouling problems in,
Bolted channel head in shell-and-tube exchanger,
Bolted cone head in shell-and-tube heat exchanger,
Bolted joints, thermal contact resistance in,
Bolting,
Bolting of flanges in shell-and-tube heat exchangers,
Boltzmann's constant,
Bonnet head, in shell-and-tube heat exchanger,
Borishanski, V M,
Borishanski correlation for nucleate pool boiling,
Bott, T R,
Boundary layer:
Boussinesq approximations:
Boussinesq number, definition,
Bowring correlations for critical heat flux,
Bracket supports for heat exchangers:
Brauner, N,
Brazed plate exchanger,
Brazing in plate fin heat exchanger construction,
Bricks, drying of,
Brine recirculation, in multistage flash-evaporation,
Brinkman number,
Brittle fracture,
Bromine:
Bromley equation for film boiling from horizontal cylinders,
Bromobenzene:
Bromoethane:
Bromomethane:
Bromotrifluoromethane (Refrigerant 13B1):
Brush and cage system, for fouling mitigation,
BS 5500 code for mechanical design of shell-and-tube heat exchangers (see also PD 5500),
Bubble crowding as mechanism of critical heat flux,
Bubble flow:
Bubbles:
Bulk viscosity,
Bundle-induced convection in kettle reboilers,
Bundle layout, in condensers
Buoyancy effects:
Buoyancy-induced flow in channels, free convective heat transfer with,
Busemann-Crocco integral, application in boundary layer equations,
1,2-Butadiene:
1,3-Butadiene:
Butane:
1-Butanol:
2-Butanol:
Butene-1:
cis-2-Butene:
trans-2-Butene:
Butterworth, D,
Butyl acetate:
t-Butyl alcohol:
Butylamine:
Butylbenzene:
n-Butylbenzene:
n-Butylcyclohexane:
Butylcyclopentane:
Butylene oxide:
Butyr-aldehyde:
Butyric acid:
Butyronitrile:
Bypass (shell-and-tube bundle):
Index
HEDH
A
B
Baffle leakage in shell-and-tube heat exchangers:
Baffles in shell-and-tube heat exchangers:
Baker flow regime map for horizontal gas-liquid flow,
Balance equation (applied to complete equipment),
Band dryer:
Bandel and Schlunder correlations, for boiling in horizontal tubes,
Basket-type evaporator,
Barbosa, J R Jr,
Bateman, G,
Bayonet tube heat exchangers, constructional features of,
Bayonet tube evaporators,
Beaton, C F,
Beer-Lambert law,
Bejan, A,
Bell-Delaware method for shell-side heat transfer and pressure drop in shell-and-tube heat exchangers,
Bell and Ghaly method for calculation of multicomponent condensation,
Benard cells in free convection in horizontal fluid layers,
Bends:
Benzaldehyde:
Benzene:
Benzoic acid:
Benzonitrile:
Benzophenone:
Benzyl alcohol:
Benzyl chloride:
Berenson equation for pool film boiling from a horizontal surface,
Bergles, Arthur E,
Bernoulli equation, application to flow across cylinders,
Bimetallic tubes:
Binary mixtures:
Bingham fluid (non-Newtonian),
Biofouling,
Biot number:
Biphenyl:
Bismarck A,
Black liquor, in pulp and paper industry, fouling of heat exchangers by,
Black surface:
Blackbody radiation,
Blades, in scraped surface heat exchangers,
Blake-Carmen-Kozeny equation,
Blasius equation for friction factor,
Blenkin, R,
Blunt bodies, drag coefficients for,
Boilers:
Boiling:
Boiling curve:
Boiling length:
Boiling number, definition,
Boiling point, normal,
Boiling range (in multicomponent mixtures):
Boiling surface in boiling in vertical tubes,
Boiling Water Reactor (BWR), fouling problems in,
Bolted channel head in shell-and-tube exchanger,
Bolted cone head in shell-and-tube heat exchanger,
Bolted joints, thermal contact resistance in,
Bolting,
Bolting of flanges in shell-and-tube heat exchangers,
Boltzmann's constant,
Bonnet head, in shell-and-tube heat exchanger,
Borishanski, V M,
Borishanski correlation for nucleate pool boiling,
Bott, T R,
Boundary layer:
Boussinesq approximations:
Boussinesq number, definition,
Bowring correlations for critical heat flux,
Bracket supports for heat exchangers:
Brauner, N,
Brazed plate exchanger,
Brazing in plate fin heat exchanger construction,
Bricks, drying of,
Brine recirculation, in multistage flash-evaporation,
Brinkman number,
Brittle fracture,
Bromine:
Bromley equation for film boiling from horizontal cylinders,
Bromobenzene:
Bromoethane:
Bromomethane:
Bromotrifluoromethane (Refrigerant 13B1):
Brush and cage system, for fouling mitigation,
BS 5500 code for mechanical design of shell-and-tube heat exchangers (see also PD 5500),
Bubble crowding as mechanism of critical heat flux,
Bubble flow:
Bubbles:
Bulk viscosity,
Bundle-induced convection in kettle reboilers,
Bundle layout, in condensers
Buoyancy effects:
Buoyancy-induced flow in channels, free convective heat transfer with,
Busemann-Crocco integral, application in boundary layer equations,
1,2-Butadiene:
1,3-Butadiene:
Butane:
1-Butanol:
2-Butanol:
Butene-1:
cis-2-Butene:
trans-2-Butene:
Butterworth, D,
Butyl acetate:
t-Butyl alcohol:
Butylamine:
Butylbenzene:
n-Butylbenzene:
n-Butylcyclohexane:
Butylcyclopentane:
Butylene oxide:
Butyr-aldehyde:
Butyric acid:
Butyronitrile:
Bypass (shell-and-tube bundle):
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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