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Shanghai XX Machinery Factory: The customer used other brand scew air compressor with 22KW. The mechanical factory needs to produce more than 3m³/min air when sandblasting, and the usual air consumption is about 0.7m³/min. After learned about the customer's air demand, ZIQI company adopts one set two-stage variable frequency screw air compressor GAT-22ACFV to replace the previously used 22kW screw air compressor.
On-site photos of the customer's air compressor room before the renovation:
On-site photos of the customer's air compressor room after the renovation:
Meter reading data of 22KW air compressors of other brands before renovation:
Date15:30 | Electric meter kW·h | Flow meter Nm³ | Electric meter kW·h | Air flow Nm³ | Reference power consumption kW·h/Nm³ |
22-Aug | 37887.5 | 769 | |||
23-Aug | 38032.6 | 1262 | 145.1 | 493 | 0.294 |
24-Aug | 38204.8 | 1851 | 172.2 | 589 | 0.292 |
25-Aug | 38381.7 | 2447 | 176.9 | 596 | 0.297 |
26-Aug | 38506.3 | 2813 | 124.6 | 366 | 0.340 |
2-Sep | 39197.2 | 5023 | 690.9 | 2210 | 0.313 |
Total: |
|
| 1309.7 | 4254 | 0.307 |
GAT-22ACFV Modified Data:
GAT-22A CFV | |||||
Date | Electric meter | Flow meter | Electric meter KW·h | Air flow Nm³ | Reference power consumption |
7-Sep 9:00 | 39754.2 | 7643 | |||
7-Sep 15:30 | 39832.8 | 8270 | 78.6 | 627 | 0.125 |
8-Sep 15:30 | 39938.7 | 9102 | 105.9 | 832 | 0.127 |
Total: |
|
| 184.5 | 1459 | 0.126 |
(Other brand 22kw srew air compressor - GAT-22ACFV)/Other brand 22kw srew air compressor
(0.307-0.126)/0.307=59%
From the above data analysis, it is concluded that ZIQI air compressor GAT-22ACFV is 59% better than other brands of machine baseline power consumption.
Monthly electricity saving calculation:
GAT-22ACFV:22KW×8h/day×26day/month×59%=2699.84 kw/month
After the project is completed, 3.24 million KW•h of electricity will be saved every year.
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