Savings

Savings are achieved in two areas. (1) Electrical energy, when used for costly air conditioning and motor drives. Each seal-drum conveyor uses only 3/4 hp, while fan-powered conveyors require 3 hp or more. (2) Natural gas or oil...actual savings in this area can be computed as follows: Cost to heat make-up air that has been evacuated from building by the pneumatic scrap/waste handling system = .0000108 x CFM x x hrs/day x number of days in heating season x cost per therm.

For example, let's assume the system exhausts 2,300 CFM. The heating season is 9 months or 270 days. The (based on an average temperature of 35 degrees -- raised to 70 degrees) is 35 degrees. Figuring an 8-hour shift per day and a cost per therm (for natural gas) of 7.3, savings would be $1,370.87 per year, per conveyor. Savings for cooled air may be calculated in a similar fashion.

Specifications

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