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GPM Calculations for 102 TR AIR COOLED CHILLER (Also Download Word File)



Calculation for Chilled Water Piping (Closed Piping System) :-

Primary Pump :

Sections
Flow

Velocity

Pipe Size Diameter
Friction Loss

Suction Side
TR x 2.4
102x2.4=244.8Gallons/Min
(15.4  Litres/Sec)
4 to 7
6 Feet/Sec
(1.82metres/Sec)
4 Inch
(101.6mm)
2.7 Inches of Water Gauge/100Ft
(22.13 Pascals/Metre)
Discharge Side
TR x 2.4
102x2.4=244.8Gallons/Min
(15.4  Litres/Sec)
8-12
10
(3.04metres/Sec)
3 Inch
(
72.15mm)
10.1 Inches of Water Gauge/100Ft
(82.8)Pascals/Metre)

Secondary Pump :

Sections
Flow

Velocity

Pipe Size Diameter
Friction Loss

Suction Side
TR x 2.4
102x2.4=244.8Gallons/Min
(15.4  Litres/Sec)
4 to 7
6 Feet/Sec
(1.82metres/Sec)
4 Inch
(101.6mm)
2.7 Inches of Water Gauge/100Ft
(22.13 Pascals/Metre)
Discharge Side
TR x 2.4
102x2.4=244.8Gallons/Min
(15.4  Litres/Sec)
8-12
10
(3.04metres/Sec)
3 Inch
(
72.15mm)
10.1 Inches of Water Gauge/100Ft
(82.8)Pascals/Metre)



Note :- For 10 degree temp drop through the chiller is 2.4gallons per min per ton of cooling (as per rule of thumb is 2.4 for each 1 TR ) and 3.0 gallons per min per ton through your condenser if it is water cooled.




Calculation for Condenser Piping (Open Piping System)

Primary Pump :

Sections
Flow

Velocity

Pipe Size Diameter
Friction Loss

Suction Side
TR x 3.0
102x3.0=306 Gallons/Min
(19.3Litres/Sec)
4 to 7
6 Feet/Sec
(1.82metres/Sec)
5 Inch
(127mm)
4.5 Inches of Water Gauge/100Ft
( 36.89Pascals/Metre)
Discharge Side
TR x 3.0
102x3.0=306 Gallons/Min
(19.3Litres/Sec)
8-12
10
(3.04metres/Sec)
3.5 Inch
(88.9 mm)
15
(122.9Pascals/Metre)


Secondary Pump :

Sections
Flow

Velocity

Pipe Size Diameter
Friction Loss

Suction Side
TR x 3.0
102x3.0=306 Gallons/Min
(19.3Litres/Sec)
4 to 7
6 Feet/Sec
(1.82metres/Sec)
5 Inch
(127mm)
4.5 Inches of Water Gauge/100Ft
( 36.89Pascals/Metre)
Discharge Side
TR x 3.0
102x3.0=306 Gallons/Min
(19.3Litres/Sec)
8-12
10
(3.04metres/Sec)
3.5 Inch
(88.9 mm)
15
(122.9Pascals/Metre)

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