Question

How much relative pressure can be achieved with a flat elbow design with baffles compared to a stacked elbow without baffles?

Answer 1

A flat elbow is made to remove the complications caused by inlet elbow. A flat elbow has a converging area. A moderately increasing flow rate can restrain the likelihood concerning the velocity curve due to a multi turn in front of the impeller eye. To evade stagnation areas or clashes around the reuniting area, a streamlined baffle is made at the advancing side of the flat elbow.  Flow detachment has been avoided in this case. Pressure loss is greater than for the inlet elbow around 2%. The circumferential velocity is lessened and the whirls are removed at the feed to the impeller. To reduce the pressure loss, baffles and turning vanes in the stack at the alteration joint were created. The baffles and surfaces that rotate and push water lessen the pressure loss coefficient with agitation and increase in flow rate near the outer wall of the charge. This parting area causes huge change in the total pressure loss in the stack.