TOWER

- Calculate of the haulage of liquids for the vapor
- Calculate of the flooding of the trays

PIPES

- Calculate of the decibels taken place by the step of the fluid in the pipe

PUMPS

- Calculate of the minimum pressure before the cavitation

VALVES

- Calculate of the minimum pressure before the cavitation

FURNACES

- Calculate the consumption of the fuel
- Calculate of the reactions happened among of the tubes

BOILERS

- Calculate of the sure diameter of the pipe of the boiler
- Calculate of the lost of heat of the boiler
- Calculate of the reactions happened by the contamination

HEAT EXCHANGERS

- Calculate of the temperature of the tube
- Calculate of the flow with phase change.

**Density **- program online for pure compound

For liquids

to obtain the density of a liquid the following formula is used:

Where ρ_{liq }is the density of the pure liquid (gr/cm3)

A and B are constant that they depend on the compound.

Tr is the reduced temperature.

For the Gases

to obtain the density of a gas the following formula is used:

Where ρ_{gas} is the density of the gas (gr/cm3)

P is the total pressure (Atm)

M is the molecular weight (gr).

z is the factor of compressibility of the gas.

T is the temperature of the gas (°K)

R is the constant of the gas = 0.082

For the Mixture

to obtain the density average of the mixture the following formula is used

Where ρ_{M} is the density average of the mixture (gr/cm3)

ρ is the density of the component i (gr/cm3)

V is the volume that occupies according to its fraction molar (cm3)

Special case in density of hydrocarbons

**Viscosity** - program online for pure compound

; For the liquids

to obtain the viscosity of a liquid the following formula is used:

Where *μ _{liq}* is the viscosity of the liquid (kg/m*s)

A, B, C and D are constant that it depends on the compound

T is the temperature (°K)

For the gases

to obtain the viscosity of a gas the following formula is used:

Where

A, B and C are constant that it depends on the compound

T is the temperature (°K)

For the Mixture

to obtain the viscosity of the mixture the following formula is used

Where

x

For the liquids

to obtain the caloric capacity of a liquid the following formula is used:

Where C

A, B and C are constant that they depend on the compound

T is the temperature to which is the liquid. (°K)

M is the molecular weight of the compound (gr).

For the gases

to obtain the caloric capacity of a gas the following formula is used:

Where C

A, B, C and D are constant that they depend on the compound

T is the temperature. (°K)

For the mixture

to obtain the caloric capacity the mixture the following formula is used:

o

Where Cp

Cp

x

For the liquids

to obtain the thermal conductivity of a liquid the following formula is used:

Where k

A, B, C is constant that they depend on the liquid

T is the temperature (°K)

For the gases

to obtain the thermal conductivity of a gas the following formula is used:

Where k

A, B, C is constant that it depends on the gas.

T is the temperature (°K)

For the mixture

to obtain the thermal conductivity of the mixture the following formula is used:

Where k

k

x

For a pure compound

to obtain the latent heat of vaporization the following formula is used:

Where

T

For the liquids

to obtain the genitalia of a liquid the following formula is used:

ole13.gif

Where

C

T is the temperature of the liquid (°K)

For the gases

to obtain the enthalpy of a gas the following formula is used:

Where

C

C

T is the temperature of the liquid (°K)

Teb is the temperature of boil to a given pressure.

to obtain the factor ki of each compound is used their properties you criticize and value asentric:

Where Pr is the reduced pressure

Tr is the reduced temperature

ω is the factor asentric

Where z is the factor of compressibility.

T is the temperature(°R)

P is the pressure (psi) (P <5000 psi)

Sg is the specifies gravity. (0.5 - 0.8)

F1 = P(0.251*Sg-0.15)-0.202*Sg+1.106

F2=1.4e-0.0054(T-460).

F3=A1*P5+A2*P4+A3*P3+A4*P2+A5*P

F4={0.154-0.152*Sg}*P(3.185*Sg-1)e-0.5*P-0.02

F5=0.35*{(0.6-Sg)E-1.039(P-1.8)2}

A1=0.001946

A2=-0.027635

A3=0.136315

A4=-0.23849

A5=0.105168

A6=3.44x108

to calculate the temperature of boil of a mixture the following equality should be completed:

Where k

x

.

to calculate the temperature of condensation of a mixture the following equality should be completed:

Where k

x

Chart for the conductivity thermal of the gas

Formula | Compound | A | B | C | TMIN | TMAX |

N2 | Nitrogen | 0.00283 | 8.125E-05 | -0.00000002 | ||

CO2 | Dioxide Carbon | -0.012 | 0.00010208 | -0.000000022403 | 195 | 1500 |

H2S | Sulfur hydrogen | |||||

H2O | Water | 0.00193 | 4.52E-05 | 0.00000005 | ||

C1 | Methane | -0.00935 | 0.00014028 | 0.00000003318 | 97 | 1400 |

C2 | Ethane | -0.01936 | 0.00012547 | 0.00000003829 | 225 | 825 |

C3 | Propane | -0.00869 | 6.6409E-05 | 0.00000007876 | 233 | 773 |

i-C4 | i-Butane | -0.00115 | 1.4943E-05 | 0.00000014921 | 261 | 673 |

n-C4 | n-Butane | -0.00182 | 1.9396E-05 | 0.00000013818 | 225 | 675 |

i-C5 | i-Pentane | -0.00389 | 3.1816E-05 | 1.0396E-07 | 250 | 475 |

n-C5 | n-Pentane | 0.00137 | 1.8081E-05 | 1.2136E-07 | 225 | 480 |

C6 | n-Hexane | -0.002 | 7.779E-06 | 1.3824E-07 | 290 | 480 |

C7 | n-Heptane | -0.00172 | 1.6565E-05 | 1.0525E-07 | 250 | 750 |

C8 | n-Octane | -0.00213 | 1.8456E-05 | 9.4775E-08 | 300 | 800 |

C9 | n-Nonane | -0.00655 | 3.2637E-05 | 7.715E-08 | 449 | 678 |

C10 | n-Decane | -0.00113 | 8.109E-06 | 9.6092E-08 | 470 | 700 |

C11 | n-Undecane | 0.01364 | -4.8303E-05 | 1.4396E-07 | 470 | 800 |

C12 | n-Dozedecane | -0.00812 | 2.915E-05 | 7.2085E-08 | 489 | 1000 |

C2H4O2 | Acid acetic | 0.00234 | -6.5956E-06 | 1.1569E-07 | 295 | 687 |

C2H2 | Acetylene | -0.00358 | 6.2542E-05 | 7.0646E-08 | 200 | 600 |

C3H6O | Acetone | -0.00084 | 8.7475E-06 | 1.0678E-07 | 273 | 572 |

NH3 | Ammoniac | |||||

CO | Monoxide Carbon | 0.00158 | 8.2511E-05 | -1.9081E-08 | 70 | 1250 |

CH2CH2 | Ethylene | -0.00123 | 3.6219E-05 | 1.2459E-07 | 150 | 750 |

O2 | Oxygen | 0.00181 | 8.575E-05 | -2E-08 | ||

C4H8 | i-Butylene | -0.00327 | 3.0146E-05 | 1.2529E-07 | 250 | 850 |

C3H6 | Propylene | -0.01116 | 7.5155E-05 | 6.5558E-08 | 250 | 1000 |

CH3OH | Methanol | 0.00234 | 5.434E-06 | 1.3154E-07 | 273 | 684 |

C2H5OH | Ethanol | -0.00556 | 4.362E-05 | 8.5033E-08 | 351 | 991 |

C6H6 | Benzene | -0.00565 | 3.4493E-05 | 6.9298E-08 | 325 | 700 |

neo-C5 | neo-Pentane | 0.00071 | -8.1028E-06 | 1.8759E-07 | 270 | 425 |

Chart for the conductivity thermal of the liquid

Formula | Compound | A | B | C | TMIN | TMAX |

N2 | Nitrogen | |||||

CO2 | Dioxide Carbon | -1.3679 | 0.8092 | 304.19 | 217 | 289 |

H2S | Sulfur hydrogen | |||||

H2O | Water | -0.27070528 | 0.00456253 | -0.00000546 | ||

C1 | Methane | -1.0976 | 0.5387 | 190.58 | 91 | 181 |

C2 | Ethane | -1.3474 | 0.7003 | 305.42 | 90 | 290 |

C3 | Propane | -1.2127 | 0.6611 | 369.82 | 85 | 351 |

i-C4 | i-Butane | -1.6862 | 0.9802 | 408.14 | 114 | 388 |

n-C4 | n-Butane | -1.8929 | 1.2885 | 425.18 | 135 | 404 |

i-C5 | i-Pentane | -1.6824 | 0.9955 | 460.43 | 113 | 437 |

n-C5 | n-Pentane | -1.2287 | 0.5322 | 469.65 | 143 | 446 |

C6 | n-Hexane | -1.8389 | 1.186 | 507.43 | 178 | 482 |

C7 | n-Heptane | -1.8482 | 1.1843 | 540.26 | 183 | 513 |

C8 | n-Octane | -1.8388 | 1.1699 | 568.83 | 216 | 540 |

C9 | n-Nonane | -1.7865 | 1.1033 | 595.65 | 220 | 566 |

C10 | n-Decane | -1.7768 | 1.0839 | 618.45 | 243 | 588 |

C11 | n-Undecane | -1.6318 | 0.9325 | 638.76 | 248 | 607 |

C12 | n-Dozedecane | -1.7989 | 1.1109 | 658.2 | 264 | 625 |

C2H4O2 | Acid acetic | -1.2836 | 0.5893 | 592.71 | 290 | 563 |

C2H2 | Acetylene | |||||

C3H6O | Acetone | -1.3857 | 0.7643 | 508.2 | 178 | 483 |

NH3 | Ammoniac | |||||

CO | Monoxide Carbon | -1.7115 | 1.1359 | 132.92 | 68 | 126 |

CH2CH2 | Ethylene | -1.3314 | 0.8527 | 282.26 | 104 | 268 |

O2 | Oxygen | |||||

C4H8 | i-Butylene | -1.49020 | 0.8491 | 417.90 | 133 | 397 |

C3H6 | Propylene | -1.43760 | 0.7718 | 364.76 | 88 | 347 |

CH3OH | Methanol | -1.1793 | 0.6191 | 512.58 | 175 | 487 |

C2H5OH | Ethanol | -1.3172 | 0.6987 | 516.25 | 159 | 490 |

C6H6 | Benzene | -1.6846 | 1.052 | 562.16 | 279 | 534 |

neo-C5 | neo-Pentane | -1.7534 | 1.0306 | 433.78 | 257 | 412 |

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