Fan-laws-and-fan-hp-rev1.xls

Calculation authored and generated by CTC Design, Inc. Sheet Filename & Title: Fan Laws and Fan HP

Rev Date:

30-Jun-09

Sheet Rev No:

Print Date:

10-Apr-19

1

Information from Fan Manufacturer Design Airflow Design Static Pressure Fan Speed Fan Power Fan Motor Speed Drive Type Fan Mechanical Effeciency Motor Effeciency

6,000 3 1715 4.69 1800 Belt Driven 75% 95%

CFM inches of WC RPM BHP RPM

Fan Laws Table Airflow - CFM

Static Pressure - in

1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 6,000

Fan RPM

0.08 0.19 0.33 0.52 0.75 1.02 1.33 1.69 2.08 2.52 3.00

BHP 286 429 572 715 858 1000 1143 1286 1429 1572 1715

0.02 0.07 0.17 0.34 0.59 0.93 1.39 1.98 2.71 3.61 4.69

Fan / Motor Sheave Sizing Sheave Dia Fan Motor

RPM 3 4.5

2700 1800

Motor & Fan Speed vs. VFD Hz. VFD Hz.

Moter RPM 5 10 15 20 25 30 35 40 45 50 55 60

Fan RPM 150 300 450 600 750 900 1050 1200 1350 1500 1650 1800

225 450 675 900 1125 1350 1575 1800 2025 2250 2475 2700

©CTC ©CTC Design, Design, Inc. Inc. This This file file and and it's it's content content is is the the exclusive exclusive property property of of CTC CTC Design, Design, Inc. Inc. It's It's intended intended for for CTC CTC Design, Design, Inc. Inc. use use only only and and is is not not to to be be used used by by others others without without written written permission permission from from CTC CTC Design, Design, Inc. Inc.

Calculation authored and generated by CTC Design, Inc. Sheet Filename & Title: Fan Laws and Fan HP Sizing

Rev Date:

30-Jun-09

Sheet Rev No:

Print Date:

10-Apr-19

1

Fan Energy Usage Table Airflow - CFM

Fan BHP

1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000 5,500 6,000

Motor HP

0.02 0.07 0.17 0.34 0.59 0.93 1.39 1.98 2.71 3.61 4.69

Motor kW

0.02 0.08 0.18 0.36 0.62 0.98 1.46 2.08 2.86 3.80 4.94

0.0001 0.0003 0.0006 0.0012 0.0021 0.0033 0.0050 0.0071 0.0097 0.0130 0.0168

kW - Energy Usage

Air Flow vs. Energy Usage 0.0180 0.0160 0.0140 0.0120 0.0100 0.0080 0.0060 0.0040 0.0020 0.0000 0

1,000

2,000 Air Flow 3,000- CFM 4,000

5,000

6,000

7,000

©CTC ©CTC Design, Design, Inc. Inc. This This file file and and it's it's content content is is the the exclusive exclusive property property of of CTC CTC Design, Design, Inc. Inc. It's It's intended intended for for CTC CTC Design, Design, Inc. Inc. use use only only and and is is not not to to be be used used by by others others without without written written permission permission from from CTC CTC Design, Design, Inc. Inc.

©CTC ©CTC Design, Design, Inc. Inc. This This file file and and it's it's content content is is the the exclusive exclusive property property of of CTC CTC Design, Design, Inc. Inc. It's It's intended intended for for CTC CTC Design, Inc. use only and is not to be used by others without written permission from CTC Design, Inc. Design, Inc. use only and is not to be used by others without written permission from CTC Design, Inc.