Applicable to large, open, indoor spaces with low occupancy as well as to warehouses, the findings are based on more than 220 parametric computational-fluid-dynamics (CFD) simulations varying worker and packing-line locations and fan speed (20%-100%) with and without racking.
As with all electronics, VFDs have advanced in capability and function over their long history, providing more system control to help eliminate external devices and integrate with programmable logic controllers (PLCs).
A feature in the design of the ventilation system of the welding shop is the need to achieve high results of purification of air masses with relatively low energy costs.