In general, the discriminant is an algebraic expression that gives. information about the roots of a polynomial. In the case of a quadratic equation the discriminant is the part of. the quadratic equation that is under the radical sign.
How to Select Dampers and Louvers. Dampers and louvers are used to control the flow of air in a process system or enclosed area. Dampers are usually motorized or manually-adjustable for flow control. Louvers are often fixed for a constant flow rate.
Three washer dampers absorb excess vibrations to deliver a quiet operation. Inverter Direct Drive System â LGâs Direct Drive system increases motor stability and durability, while less-ening vibrations. It eliminates the need for belts and pulleys, found in conventional washer motors, decreasing maintenance and noise.