|
| Example of energy saving using inverter control |
-
As the
speed of the fan or pump is reduced, the flow will
reduce proportionally, while the power required by the
fan or the pump will reduce with the cube of the speed.
This level of potential energy saving makes the use of
Variable Speed Drive (VSD) a cost-effective investments
in energy efficiency which can be considered for motors.
-
[Energy saving effect and
amount of CO2 reduction by inverter drive]
- Capacity of fan, pump: 30kW
- Control speed by inverters: 60%
* Efficiency of fan, pump at 100% operation: 92%
* Necessary power of damper control: (60% speed = 84%
power)
30kW / 0.92 x 0.84 x 24h x 365days = 239,948kWh
* Necessary power of inverter control: (60% speed = 21%
power)
30kW / 0.92 x 0.21 x 24h x 365days = 59,987kWh
* Energy saving effect
239,948?- 59,987 = 179,961kWh
* Amount of CO2 reduction
0.555kg / kWh x 179,961kWh = 99,878kg/year
|
|
 
Toshiba Inverter Supporting the social infrastructure systems and
industrial systems.
|
|
| Energy Savings Estimator Program |
 |
- Try using this software program to estimate the electrical engeryfor fan and pump applications when using an AC motor in combination with an inverter drive. The software compares the use of an inverter drive against conventional control methods such as outlet dampers, inlet vanes, throttling valves, etc.... and instantly see the benefits.
Download
|
|
|
