Fans & Pumps: Duty Profiles, the Cube Law & Variable Speed Drives
This lesson is part of the course
In this lesson
You calculate the yearly kWh of an extract fan over its duty profile with damper control and with a variable speed drive, using the cube law, and work out the savings and the payback of the drive.
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Lessons in this course
- The Energy Balance: kWh by End Use, Shares, Costs & Significant Energy Uses Locked
- Energy Performance Indicators: kWh per Unit, Pooled Intensity & Savings Locked
- Lighting Retrofit: Watts × Hours, LED Savings, Occupancy Sensors & Payback Locked
- Fans & Pumps: Duty Profiles, the Cube Law & Variable Speed Drives Locked
- Compressed Air: Leak Survey, Leak Cost per Year & the Leak-Down Test Locked
- Heating Options: Boiler Efficiency vs Heat Pump SCOP, Running Cost, TCO & CO2 Locked
- The Measures List: Payback, Lifetime Savings, Cost per kWh Saved & Ranking Locked
- Savings Verification: Regression Baseline, Avoided Energy & a CUSUM Chart Locked