FRI-9.2-1-THPE-09
STUDYING THE IMPACT OF A COMBINATION OF DIFFUSERS ON THE VENTILATION SYSTEMS CURVE
Abstract
Energy losses in ventilation systems depend on the length of the pipelines and the influence of elements with a complex shape in these systems. The influence of straight pipe sections on losses in the system is an easy task to calculate from an engineering point of view, but of great interest and more complex to calculate are the elements with complex shapes in these systems. One type of complex shaped element in these systems is the diffuser. There are systems without a diffuser, with a diffuser at the outlet, with a diffuser between two straight pipe sections. This paper investigates the influence of the diffuser on the resistance characteristic of fan systems. Variants without a diffuser, with a diffuser at the outlet, with a diffuser between two straight sections and a variant with a diffuser between two straight sections and a diffuser at the outlet were compared. The comparison was made under equal conditions and under different(diffuser angles -; diffuser expansion coefficient -n ; relative length of the straight section before the diffuser -
l d ).
l d ).
Keywords
Diffuser, Ventilation systems, Pipe
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