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calculo de perdida en ductos
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FreeCalc.Com
On-Line Duct Friction Loss
Enter Single Duct Conditions Below:
PROJECT DATA:
Job Number: Client: Date:
Line Number: Fluid:
DUCT AND FLOW CONDITIONS:
Duct Type: CHOOSE DUCT TYPE
Rectangular Duct Dimensions:
Side a (in.):
Side b (in.):
Duct Diameter(in):
Duct Material GALVANIZED METAL
Flow Rate: ACFM
Viscosity (cP): 0.018 Typical Values
Temperature (F): 70
Gas Molecular Weight: 29 Typical Values
Specific Heat Ratio: 1.4 Typical Values
Inlet Pressure (PSIG): 0
Duct Length (ft): 100
Duct Entry Configuration (must choose one): Hoods:
What do these hoods look like?
None Plain Duct End Flanged Duct End
Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t.o.)
Standard Grinder Hood (no taper) Trap or Settling Chamber
Abrasive blast chamber Abrasive blast elevator Abrasive separator
Elevators (enclosures) Flanged pipe plus close elbow Plain pipe plus close elbow
Show me what a Tapered Hood looks like
Tapered Hoods Taper Angle (degrees): 90 Hood Type: RECTANGULAR OR SQUARE
Show me what a Compound Hood looks like
Compound Hoods
Slot Dimensions: Slot Number: Taper Angle (degrees):
Height (in.): 90
Length (in.): Hood Type: RECTANGULAR OR SQUARE
Página 1 de 3
Other
Other Duct Type Loss Factor:
Branch Entries (Velocity change corrections):
Show me a branch entry configuration
Duct Segment Originates at Branch
Flow of # 1 Entering Branch (ACFM):
Velocity Pressure of # 1 Entering Branch (inches Water):
Flow of # 2 Entering Branch (ACFM):
Velocity Pressure of # 2 Entering Branch (inches Water):
Note: Sum of flows in branches # 1 and # 2 must equal Flow Rate in ACFM input above.
Elbows (choose up to three different elbow types): Note: cannot mix round and regtangular ducts in a single calculation.
Round Ducts:
Show me what these round elbows look like
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Rectangular Ducts (chose up to three different elbow types):
Show me what these rectangular elbows look like
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Filter(s) / Air Cleaner(s) / Miscellaneous Equipment (choose up to three):
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Duct Exit Configuration (must choose one):
Main Duct Line
(Branch 1 in this Drawing)
Branch Entry Branch Entry Angle (degrees): 30
(Branch 2 in this Drawing)
Show me what these expansions and contractions look like
Expansion within Duct Taper Angle (degrees): 20
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.75:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Página 2 de 3
Copyright © 2000 FreeCalc.Com All Rights Reserved.
Expansion at End of Duct Taper Lenght to Inlet Diameter Ratio: 4.0:1
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.4:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Tapered Contaction Taper Angle of Contraction(Degrees): 15
Outlet Pipe Diameter (inches):
Vertical Discharge, No Loss
Página 3 de 3
FreeCalc.Com
On-Line Duct Friction Loss
Enter Single Duct Conditions Below:
PROJECT DATA:
Job Number: Client: Date:
Line Number: Fluid:
DUCT AND FLOW CONDITIONS:
Duct Type: CHOOSE DUCT TYPE
Rectangular Duct Dimensions:
Side a (in.):
Side b (in.):
Duct Diameter(in):
Duct Material GALVANIZED METAL
Flow Rate: ACFM
Viscosity (cP): 0.018 Typical Values
Temperature (F): 70
Gas Molecular Weight: 29 Typical Values
Specific Heat Ratio: 1.4 Typical Values
Inlet Pressure (PSIG): 0
Duct Length (ft): 100
Duct Entry Configuration (must choose one): Hoods:
What do these hoods look like?
None Plain Duct End Flanged Duct End
Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t.o.)
Standard Grinder Hood (no taper) Trap or Settling Chamber
Abrasive blast chamber Abrasive blast elevator Abrasive separator
Elevators (enclosures) Flanged pipe plus close elbow Plain pipe plus close elbow
Show me what a Tapered Hood looks like
Tapered Hoods Taper Angle (degrees): 90 Hood Type: RECTANGULAR OR SQUARE
Show me what a Compound Hood looks like
Compound Hoods
Slot Dimensions: Slot Number: Taper Angle (degrees):
Height (in.): 90
Length (in.): Hood Type: RECTANGULAR OR SQUARE
Página 1 de 3
Other
Other Duct Type Loss Factor:
Branch Entries (Velocity change corrections):
Show me a branch entry configuration
Duct Segment Originates at Branch
Flow of # 1 Entering Branch (ACFM):
Velocity Pressure of # 1 Entering Branch (inches Water):
Flow of # 2 Entering Branch (ACFM):
Velocity Pressure of # 2 Entering Branch (inches Water):
Note: Sum of flows in branches # 1 and # 2 must equal Flow Rate in ACFM input above.
Elbows (choose up to three different elbow types): Note: cannot mix round and regtangular ducts in a single calculation.
Round Ducts:
Show me what these round elbows look like
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Rectangular Ducts (chose up to three different elbow types):
Show me what these rectangular elbows look like
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Filter(s) / Air Cleaner(s) / Miscellaneous Equipment (choose up to three):
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Duct Exit Configuration (must choose one):
Main Duct Line
(Branch 1 in this Drawing)
Branch Entry Branch Entry Angle (degrees): 30
(Branch 2 in this Drawing)
Show me what these expansions and contractions look like
Expansion within Duct Taper Angle (degrees): 20
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.75:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Página 2 de 3
Copyright © 2000 FreeCalc.Com All Rights Reserved.
Expansion at End of Duct Taper Lenght to Inlet Diameter Ratio: 4.0:1
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.4:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Tapered Contaction Taper Angle of Contraction(Degrees): 15
Outlet Pipe Diameter (inches):
Vertical Discharge, No Loss
Página 3 de 3
FreeCalc.Com
On-Line Duct Friction Loss
Enter Single Duct Conditions Below:
PROJECT DATA:
Job Number: Client: Date:
Line Number: Fluid:
DUCT AND FLOW CONDITIONS:
Duct Type: CHOOSE DUCT TYPE
Rectangular Duct Dimensions:
Side a (in.):
Side b (in.):
Duct Diameter(in):
Duct Material GALVANIZED METAL
Flow Rate: ACFM
Viscosity (cP): 0.018 Typical Values
Temperature (F): 70
Gas Molecular Weight: 29 Typical Values
Specific Heat Ratio: 1.4 Typical Values
Inlet Pressure (PSIG): 0
Duct Length (ft): 100
Duct Entry Configuration (must choose one): Hoods:
What do these hoods look like?
None Plain Duct End Flanged Duct End
Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t.o.)
Standard Grinder Hood (no taper) Trap or Settling Chamber
Abrasive blast chamber Abrasive blast elevator Abrasive separator
Elevators (enclosures) Flanged pipe plus close elbow Plain pipe plus close elbow
Show me what a Tapered Hood looks like
Tapered Hoods Taper Angle (degrees): 90 Hood Type: RECTANGULAR OR SQUARE
Show me what a Compound Hood looks like
Compound Hoods
Slot Dimensions: Slot Number: Taper Angle (degrees):
Height (in.): 90
Length (in.): Hood Type: RECTANGULAR OR SQUARE
Página 1 de 3
Other
Other Duct Type Loss Factor:
Branch Entries (Velocity change corrections):
Show me a branch entry configuration
Duct Segment Originates at Branch
Flow of # 1 Entering Branch (ACFM):
Velocity Pressure of # 1 Entering Branch (inches Water):
Flow of # 2 Entering Branch (ACFM):
Velocity Pressure of # 2 Entering Branch (inches Water):
Note: Sum of flows in branches # 1 and # 2 must equal Flow Rate in ACFM input above.
Elbows (choose up to three different elbow types): Note: cannot mix round and regtangular ducts in a single calculation.
Round Ducts:
Show me what these round elbows look like
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Rectangular Ducts (chose up to three different elbow types):
Show me what these rectangular elbows look like
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Filter(s) / Air Cleaner(s) / Miscellaneous Equipment (choose up to three):
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Duct Exit Configuration (must choose one):
Main Duct Line
(Branch 1 in this Drawing)
Branch Entry Branch Entry Angle (degrees): 30
(Branch 2 in this Drawing)
Show me what these expansions and contractions look like
Expansion within Duct Taper Angle (degrees): 20
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.75:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Página 2 de 3
Copyright © 2000 FreeCalc.Com All Rights Reserved.
Expansion at End of Duct Taper Lenght to Inlet Diameter Ratio: 4.0:1
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.4:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Tapered Contaction Taper Angle of Contraction(Degrees): 15
Outlet Pipe Diameter (inches):
Vertical Discharge, No Loss
Página 3 de 3
FreeCalc.Com
On-Line Duct Friction Loss
Enter Single Duct Conditions Below:
PROJECT DATA:
Job Number: Client: Date:
Line Number: Fluid:
DUCT AND FLOW CONDITIONS:
Duct Type: CHOOSE DUCT TYPE
Rectangular Duct Dimensions:
Side a (in.):
Side b (in.):
Duct Diameter(in):
Duct Material GALVANIZED METAL
Flow Rate: ACFM
Viscosity (cP): 0.018 Typical Values
Temperature (F): 70
Gas Molecular Weight: 29 Typical Values
Specific Heat Ratio: 1.4 Typical Values
Inlet Pressure (PSIG): 0
Duct Length (ft): 100
Duct Entry Configuration (must choose one): Hoods:
What do these hoods look like?
None Plain Duct End Flanged Duct End
Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t.o.)
Standard Grinder Hood (no taper) Trap or Settling Chamber
Abrasive blast chamber Abrasive blast elevator Abrasive separator
Elevators (enclosures) Flanged pipe plus close elbow Plain pipe plus close elbow
Show me what a Tapered Hood looks like
Tapered Hoods Taper Angle (degrees): 90 Hood Type: RECTANGULAR OR SQUARE
Show me what a Compound Hood looks like
Compound Hoods
Slot Dimensions: Slot Number: Taper Angle (degrees):
Height (in.): 90
Length (in.): Hood Type: RECTANGULAR OR SQUARE
Página 1 de 3
Other
Other Duct Type Loss Factor:
Branch Entries (Velocity change corrections):
Show me a branch entry configuration
Duct Segment Originates at Branch
Flow of # 1 Entering Branch (ACFM):
Velocity Pressure of # 1 Entering Branch (inches Water):
Flow of # 2 Entering Branch (ACFM):
Velocity Pressure of # 2 Entering Branch (inches Water):
Note: Sum of flows in branches # 1 and # 2 must equal Flow Rate in ACFM input above.
Elbows (choose up to three different elbow types): Note: cannot mix round and regtangular ducts in a single calculation.
Round Ducts:
Show me what these round elbows look like
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Rectangular Ducts (chose up to three different elbow types):
Show me what these rectangular elbows look like
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Filter(s) / Air Cleaner(s) / Miscellaneous Equipment (choose up to three):
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Duct Exit Configuration (must choose one):
Main Duct Line
(Branch 1 in this Drawing)
Branch Entry Branch Entry Angle (degrees): 30
(Branch 2 in this Drawing)
Show me what these expansions and contractions look like
Expansion within Duct Taper Angle (degrees): 20
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.75:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Página 2 de 3
Copyright © 2000 FreeCalc.Com All Rights Reserved.
Expansion at End of Duct Taper Lenght to Inlet Diameter Ratio: 4.0:1
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.4:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Tapered Contaction Taper Angle of Contraction(Degrees): 15
Outlet Pipe Diameter (inches):
Vertical Discharge, No Loss
Página 3 de 3
FreeCalc.Com
On-Line Duct Friction Loss
Enter Single Duct Conditions Below:
PROJECT DATA:
Job Number: Client: Date:
Line Number: Fluid:
DUCT AND FLOW CONDITIONS:
Duct Type: CHOOSE DUCT TYPE
Rectangular Duct Dimensions:
Side a (in.):
Side b (in.):
Duct Diameter(in):
Duct Material GALVANIZED METAL
Flow Rate: ACFM
Viscosity (cP): 0.018 Typical Values
Temperature (F): 70
Gas Molecular Weight: 29 Typical Values
Specific Heat Ratio: 1.4 Typical Values
Inlet Pressure (PSIG): 0
Duct Length (ft): 100
Duct Entry Configuration (must choose one): Hoods:
What do these hoods look like?
None Plain Duct End Flanged Duct End
Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t.o.)
Standard Grinder Hood (no taper) Trap or Settling Chamber
Abrasive blast chamber Abrasive blast elevator Abrasive separator
Elevators (enclosures) Flanged pipe plus close elbow Plain pipe plus close elbow
Show me what a Tapered Hood looks like
Tapered Hoods Taper Angle (degrees): 90 Hood Type: RECTANGULAR OR SQUARE
Show me what a Compound Hood looks like
Compound Hoods
Slot Dimensions: Slot Number: Taper Angle (degrees):
Height (in.): 90
Length (in.): Hood Type: RECTANGULAR OR SQUARE
Página 1 de 3
Other
Other Duct Type Loss Factor:
Branch Entries (Velocity change corrections):
Show me a branch entry configuration
Duct Segment Originates at Branch
Flow of # 1 Entering Branch (ACFM):
Velocity Pressure of # 1 Entering Branch (inches Water):
Flow of # 2 Entering Branch (ACFM):
Velocity Pressure of # 2 Entering Branch (inches Water):
Note: Sum of flows in branches # 1 and # 2 must equal Flow Rate in ACFM input above.
Elbows (choose up to three different elbow types): Note: cannot mix round and regtangular ducts in a single calculation.
Round Ducts:
Show me what these round elbows look like
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Rectangular Ducts (chose up to three different elbow types):
Show me what these rectangular elbows look like
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Filter(s) / Air Cleaner(s) / Miscellaneous Equipment (choose up to three):
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Duct Exit Configuration (must choose one):
Main Duct Line
(Branch 1 in this Drawing)
Branch Entry Branch Entry Angle (degrees): 30
(Branch 2 in this Drawing)
Show me what these expansions and contractions look like
Expansion within Duct Taper Angle (degrees): 20
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.75:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Página 2 de 3
Copyright © 2000 FreeCalc.Com All Rights Reserved.
Expansion at End of Duct Taper Lenght to Inlet Diameter Ratio: 4.0:1
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.4:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Tapered Contaction Taper Angle of Contraction(Degrees): 15
Outlet Pipe Diameter (inches):
Vertical Discharge, No Loss
Página 3 de 3
FreeCalc.Com
On-Line Duct Friction Loss
Enter Single Duct Conditions Below:
PROJECT DATA:
Job Number: Client: Date:
Line Number: Fluid:
DUCT AND FLOW CONDITIONS:
Duct Type: CHOOSE DUCT TYPE
Rectangular Duct Dimensions:
Side a (in.):
Side b (in.):
Duct Diameter(in):
Duct Material GALVANIZED METAL
Flow Rate: ACFM
Viscosity (cP): 0.018 Typical Values
Temperature (F): 70
Gas Molecular Weight: 29 Typical Values
Specific Heat Ratio: 1.4 Typical Values
Inlet Pressure (PSIG): 0
Duct Length (ft): 100
Duct Entry Configuration (must choose one): Hoods:
What do these hoods look like?
None Plain Duct End Flanged Duct End
Bellmouth Entry Sharp Edged Orifice Standard Grinder Hood (tapered t.o.)
Standard Grinder Hood (no taper) Trap or Settling Chamber
Abrasive blast chamber Abrasive blast elevator Abrasive separator
Elevators (enclosures) Flanged pipe plus close elbow Plain pipe plus close elbow
Show me what a Tapered Hood looks like
Tapered Hoods Taper Angle (degrees): 90 Hood Type: RECTANGULAR OR SQUARE
Show me what a Compound Hood looks like
Compound Hoods
Slot Dimensions: Slot Number: Taper Angle (degrees):
Height (in.): 90
Length (in.): Hood Type: RECTANGULAR OR SQUARE
Página 1 de 3
Other
Other Duct Type Loss Factor:
Branch Entries (Velocity change corrections):
Show me a branch entry configuration
Duct Segment Originates at Branch
Flow of # 1 Entering Branch (ACFM):
Velocity Pressure of # 1 Entering Branch (inches Water):
Flow of # 2 Entering Branch (ACFM):
Velocity Pressure of # 2 Entering Branch (inches Water):
Note: Sum of flows in branches # 1 and # 2 must equal Flow Rate in ACFM input above.
Elbows (choose up to three different elbow types): Note: cannot mix round and regtangular ducts in a single calculation.
Round Ducts:
Show me what these round elbows look like
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Number: Type: 4 piece R/D: 1.50 Elbow Sweep (Degrees): 90
Rectangular Ducts (chose up to three different elbow types):
Show me what these rectangular elbows look like
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Number: Aspect Ratio (W/D): 2.0 R/D: 1.5
Filter(s) / Air Cleaner(s) / Miscellaneous Equipment (choose up to three):
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Equipment Name: Pressure Drop (inches Water)
Duct Exit Configuration (must choose one):
Main Duct Line
(Branch 1 in this Drawing)
Branch Entry Branch Entry Angle (degrees): 30
(Branch 2 in this Drawing)
Show me what these expansions and contractions look like
Expansion within Duct Taper Angle (degrees): 20
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.75:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Página 2 de 3
Copyright © 2000 FreeCalc.Com All Rights Reserved.
Expansion at End of Duct Taper Lenght to Inlet Diameter Ratio: 4.0:1
Diameter Ratio (Outlet Diameter/Inlet Diameter): 1.4:1
Is Expansion greater than 5 diameters from an elbow or fan?: YES
Tapered Contaction Taper Angle of Contraction(Degrees): 15
Outlet Pipe Diameter (inches):
Vertical Discharge, No Loss
Página 3 de 3
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