Month: September 2021

Axial Fan

Commonly used schedule 40 and schedule 20 (sewer & drain) fittings were installed with 20 feet of piping on one side and 40 feet of piping on the other side. Static pressure probes were installed in the center of a straight run of piping exactly 20 feet apart. Is one kitchen stove exhaust fan more …

Replacing Reverse Osmosis Membrane Elements

Hydrophobic interactions are the major driving forces in the formation of lipid bilayers. An increase in interactions between hydrophobic molecules allows water molecules to bond more freely with each other, increasing the entropy of the system. This complex interaction can include noncovalent interactions such as van der Waals, electrostatic and hydrogen bonds. The cell membrane …