leak calc (autoguardado)

8/13/2019 Leak Calc (Autoguardado)

1/9

Liquid Release--Round Opening

Diameter of Round Hole (In Inches) 0.25

Gauge Pressure (psig) 140.0

Number of Minutes Released 5.0

Density of Liquid at Operating Temperature, (lbs./cu.ft.) 32.00

Liquid Flow Rate (lb/min) 112.15 4306.7242

Total Liquid Relased (lb) 561 5383.4053

Liquid Release--Irregular Opening

Area of Leak (In Square Inches) 0.00



Liquid Flow Rate (lb/min) 0.00Total Liquid Relased (lb) 0

Gas Release--Round Opening




Gas Flow Rate (lb/min) 0.00 #DIV/0!

Total Vapor Relased (lb) 0 #DIV/0!

Gas Release--Irregular Opening






Formulas for above calculations are adapted from the September 1993 second editionof the Chemical Exposure Index Guide published by the Dow Chemical Company.

Formula for Liquid Release, Round Opening: L=26.81(D squared) * Square Root of Pg*Pl

Formula for Liquid Release, Irregular Opening: L=34.133A * Square Root of Pg*Pl

Where: L=Liquid Flow Rate Lb./min.

D=Diameter round hole, inches

Pg=Gauge pressure, psig


2/9

Pl= Density of liquid at operating temperature, Lb./cu. Ft.

A=Area of leak, square inches

Formula for Gas Release, Round Opening: AQ=(15.48*(D Squared)*Pa)/Square Root (Tr

Formula for Gas Release, Irregular Opening: AQ=(19.71*A*Pa)/Square Root (Tr+459)

Where: AQ=Gas Flow Rate, Lb./min.

D=Diameter of round hole, inches

Pa=Gauge pressure plus 14.7, psi

Tr=Refrigerant gas temperature, F



3/9

0

0

0

0

0

0

0.1094

0

1615.02158 1615.02158

52.0974704

0.04630499

34877.92 168.231415

40579.5

3433.65

Room Level--PPM to lbs

Length of room (in feet)

Height of room (in feet)

Width of room (in feet)

Vapor density

Length x Height x Width = volume in feet3

Length x Height x Width x PPM/1,000,000 x vapor density @

specific temp = total NH3 in lbs

Total NH3 in lbs

Parts per million of NH3

Room temperature (F)

Total room volume in ft3


4/9

459)


5/9

94 1000 940

4 750 302 550 11

981

61.1814

62.43


6/9

Liquid Release--Round Opening




Density of Liquid at Operating Temperature, (lbs./cu.ft.) 61.20

Liquid Flow Rate (lb/min) 1754.78 128870.7076

Total Liquid Relased (lb) 7019 128870.7076

Liquid Release--Irregular Opening




Liquid Flow Rate (lb/min) 0.00Total Liquid Relased (lb) 0

Gas Release--Round Opening






Gas Release--Irregular Opening






Formulas for above calculations are adapted from the September 1993 second editionof the Chemical Exposure Index Guide published by the Dow Chemical Company.

Formula for Liquid Release, Round Opening: L=26.81(D squared) * Square Root of Pg*Pl

Formula for Liquid Release, Irregular Opening: L=34.133A * Square Root of Pg*Pl

Where: L=Liquid Flow Rate Lb./min.

D=Diameter round hole, inches

Pg=Gauge pressure, psig


7/9

Pl= Density of liquid at operating temperature, Lb./cu. Ft.


Formula for Gas Release, Round Opening: AQ=(15.48*(D Squared)*Pa)/Square Root (Tr

Formula for Gas Release, Irregular Opening: AQ=(19.71*A*Pa)/Square Root (Tr+459)

Where: AQ=Gas Flow Rate, Lb./min.

D=Diameter of round hole, inches

Pa=Gauge pressure plus 14.7, psi

Tr=Refrigerant gas temperature, F



8/9


9/9

459)

leak calc (autoguardado)

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