Abstract
Axial fans are used for thousands of industrial applications consuming millions of kilowatts daily. The decision that saves dollars is to either automatically change fan speed or change blade pitch to save up to 50 percent of consumed power over a fixed pitch, constant speed fan. A discussion of the merits of each type is presented with actual test results.
Monroe, R. C. (1985). Fan Energy Savings Decisions. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from
https : / /hdl .handle .net /1969 .1 /93408.