Fuji Electric Corp. of America
FRENIC Eco
Product Information
Download
FAQ
Warranty
Inquiries
Site Map
 
Back to HOME
 
roduct Information - Energy Savings with Inverter

How does using an inverter save me energy? Energy Savings effect of replacing damper (valve) control with inverter control
Examples of measurements with actual equipment

Examples of measurements with actual equipment
Exhaust fan (generating variable torque load)
   
 
-Motor capacity and inverter capacity
  · Motor capacity : 30HP
  -Inverter model : FRN030F1S-2U
  · DC REACTOR : DCR2-22A
 
-Power reduction rate and energy saving effect amount
Item Operation using commercial power Inverter-controlled operation
Operation frequency (Hz) 50 45 40 35
Average power use (kW) 17.2 13.1 9.10 6.23
Power reduction rate (%) - up30.7 up47.1 up63.8
Annual power charge ($) 11,133 8,479 5,890 4,032
Annual amount ($) of energy saving effect - 2,653 5,242 7,096
Annual CO2 reduction volume (kg/year) - 3,660 7,232 9,794
 
-Operating conditions
  · Annual operating days : 310 (days/year)
  · Working hours per day : 24 (hrs/day)
  · Power charge unit price : $0.087/kWh
   
 
  Cooling tower (generating variable torque load)
   
 
-Motor capacity and inverter capacity
  · Motor capacity : 7.5HP
  · Inverter model : FRN007F1S-2U
  · DC REACTOR : DCR2-5.5
 
-Power reduction rate and energy saving effect amount
Item Operation using commercial power Inverter-controlled operation
Operation frequency (Hz) 60 45 40 35
Average power use (kW) 5.18 2.31 1.63 1.10
Power reduction rate (%) - up55.4 up68.5 up78.8
Annual power charge ($) 2,703 1,205 850 574
Annual amount ($) of energy savings effect - 1,506 1,851 769
Annual CO2 reduction volume (kg/year) - 2,066 2,556 2,938
 
-Operating conditions
  · Annual operating days : 300 (days/year)
  · Working hours per day : 20 (hrs/day)
  · Power charge unit price : $0.087/kWh
   
 
  Mist collector (generating variable torque load)
   
 
-Motor capacity and inverter capacity
  · Motor capacity : 5HP
  · Inverter model : FRN005F1S-2U
  · DC REACTOR : DCR2-3.7
 
-Power reduction rate and energy saving effect amount
Item Operation using commercial power Inverter-controlled operation
Operation frequency (Hz) 60 45 40 35
Average power use (kW) 3.27 1.44 0.99 0.69
Power reduction rate (%) - up56.0 up69.7 up78.9
Annual power charge ($) 1,479 651 447 312
Annual amount ($) of energy savings effect - 827 1,029 1,166
Annual CO2 reduction volume (kg/year) - 1,142 1,423 1,610
 
-Operating conditions
  · Annual operating days : 260 (days/year)
  · Working hours per day : 20 (hrs/day)
  · Power charge unit price : $0.087/kWh
   
 
  Conduct a search. You can study energy savings with the following types of equipment.
 
Fan systems · Air conditioning fans
· AHU
· Dust collectors
· Mist -collectors
· Exhaust fans
· Package air conditioners, etc.
Pump systems · Cooling water pumps
· Circulating pumps
· Cleaning pump
· Roots blowers
· Coolant pumps
· Water cooler pumps, etc.
TOP