Choose the VFD control mode based on the ratio of the system pressure to maximum internal pump pressure. For a centrifugal pump delivering to a system with high operating pressure and or high static ...

Measuring total external static pressure (TESP) on an air handler can be confusing. It’s even worse when you’re the one who is adding to the confusion. A recent email from Judy Rachel, with Home ...

Pumps, compressors and distillation columns are commonly used in the process industry. Measuring the pressure or head of the system requires a pressure gauge or ...

A SpaceX Starship upper stage, or ship, being prepared for an earlier test flight. The ship for the tenth test flight exploded during ground tests June 19. Credit: SpaceX Updated 9:45 a.m. Eastern ...

This video reviews three major principles of fan performance called Fan Laws. These three Fan Laws explain how a fan’s airflow, pressure and power consumption change in response to a change in fan ...

Laboratory of Computer Design of New Materials and Machine Learning of the Institute of Physics has carried out comprehensive studies of typical trifluorides of rare earth elements—gadolinium (GdF₃), ...

For months, Yahya Sinwar has resisted pressure to cut a ceasefire-and-hostages deal with Israel. Behind his decision, messages the Hamas military leader in Gaza has sent to mediators show, is a ...

Static pressure refers to the forces acting on the inner surfaces of HVAC system ductwork. It serves as an indicator of airflow and can be affected by numerous forms of resistance, including the ...