Calculate your noise reduction and energy savings when installing an air nozzle

Our calculations are based on the following formulas and numbers

The calculations are based on the following table with measured figures for the pipe dimensions and Silvent’s air nozzles. The cost savings in the table are calculated assuming the cost of compressed air is $0.32 USD per 1,000 scfm and the blowing time is 2 hours per day.

Open pipe vs Silvent air nozzle

Open pipe Silvent air nozzle
Pipe internal Noise level Air consumption Replace with Noise reduction Air savings Annual savings
Ø dB(A) scfm
dB(A) %
scfm %
USD
5/64″
84 4.7 MJ4
8 43%
2.3 49%
23
3/32″
87 7.1 MJ5
8 43%
1.2 17%
12
1/8″
90 10 MJ6
8 43%
1.8 18%
18
5/32″
95 17.7 X01
17 69%
9.5 54%
95
3/16″
99 27.7 1011
15 65%
12.4 45%
124
1/4″
102 39.5 9002W
22 78%
21.8 55%
218
9/32″
105 54.2 973
19 73%
20.1 37%
201
5/16″
108 69.5 X03
19 73%
38.4 55%
383
3/8″
112 109 705 L
19 73%
53.1 49%
530
1/2″
116 156.7 X07
20 75%
86.1 55%
860
9/16″
119 213.8 710 L
19 73%
86.7 41%
866
5/8″
122 279.2 412 L
34 89%
159.1 57%
1588
11/16″
123 315.7 715 C
23 80%
132.7 42%
1325
23/32″
124 352.8 715 L
20 75%
169.2 48%
1689
3/4″
126 435.9 720
22 78%
188.7 43%
1884
1″
131 682.7 735 L
22 78%
230.7 34%
2303
1 1/2″
139 1576.8 780 LA
20 75%
546.8 35%
5459

Example
Open pipe Ø 1/4″ – Replaced with SILVENT 9002W

In the example below, we assume you have a Ø 1/4″ open pipe, the compressed air costs $0.32 USD per 1,000 scfm, and that you have a blowing time of 2 hours per day.

Flat air nozzle SILVENT 9002W.

Blowing time per year:
52 weeks x 5 days x X hours/day
52 weeks x 5 days x 2 hours/day = 520 hours/year

 

Saved scf per year:
Air savings scfm x blowing time x 60
21.8 scfm x 520 h x 60 = 680 160 scf/year

 

Saved USD per year:
Air savings scfm x compressed air cost x blowing time x 60 / 1000
21.8 x 0.32 USD x 520 h x 60 / 1000 = 217.7 ~ 218 USD/year

 

Sound level reduction dB(A):
Sound level open pipe – sound level air nozzle
102 dB(A) – 80 dB(A) = 22 dB(A) sound level reduction

 

Please contact one of our representatives if you want help calculating your sound level reduction and energy savings, when replacing an open pipe. Our representatives have extensive experience and expertise in the subject.