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.
The HVAC Receiver Dryer, Accumulator and Desiccant in most cases is a type of filter. However, they way they operate is very different from each other. Receiver driers, often called filter driers, look like small metal cans with an input and output port. They are only used in HVAC systems that use expansion valves.