(A) Black Liquor Feed Flow (gpm) | |

(B) Black Liquor Feed Solids (%) | |

(T) Black Liquor Feed Liquor Temperature (deg F) | |

(C) Black Liquor Product Solids (%) |

Evaporation Rate (lb/hr) |

Specific Gravity: SG=0.9982*0.006*B-0.0003*T

Evaporation Rate: EVAP=((100/FS)-(100/PS))*A*500*SG*(B/100)

(A) Black Liquor Flow (gpm) | |

(B) Black Liquor Solids (%) | |

(T) Black Liquor Liquor Temperature (deg F) |

Dry Black Liquor Solids Processed (lb/hr) |

Note the value calculated is only an approximation. A heat and material must be completed for an accurate determination.

(A) Number of Effects in Evaporator |

Estimated Steam Economy |

Steam Economy: ECON=A*0.8

Steam or Vapor Flow (lb/hr) |

Condensate Flow (gpm) |

With this equation recognize the elevation being calculated is from the elevation of the bottom measurement point to the top liquid level. Any restrictions in the line between measurement points may yield an inaccurate result. Calculation is based on measurements taken near sea level.

For measurements under vacuum enter a value with a negative sign (e.g. -18). For measurements under positive pressure enter a positive value (e.g. 30).

(PVAP) Vapor Dome Pressure (psig/in Hg) | |

(PLIQ) Liquor Line Pressure (psig/in Hg) | |

(S) Black Liquor Solids in Down Leg (%) | |

(T) Black Liquor Liquor Temperature (deg F) |

PVAP in psia | |

PLIQ in psia | |

Liquor Level in Down Leg (ft) |

(A) Black Liquor Flow (lb/hr) | |

(B) Black Liquor Solids (%) | |

(T) Black Liquor Liquor Temperature (deg F) |

Black Liquor Flow (gpm) |

Specific Gravity: SG=0.9982+0.006*B-0.0003*T

Black Liquor Flow (gpm): GPM=A/(500*SG)

Note the value calculated is only an approximation. A heat and material must be completed for an accurate determination. This formula calculates the liquor flow velocity in a pipe.

(A) Black Liquor Flow (gpm) | |

(d) Inside Pipe Diameter (inches) |

Liquor Flow Velocity (ft/sec) |

Liquor Flow Velocity: V=0.4085*A/d2

Note: An excessively high fluid velocity can cause an array of operational issues.