The ultimate goal of every heating and cooling installation is to provide the desired indoor climate at the lowest possible energy cost. Today’s advanced control technology means that, in theory, ...

The flow of all fluids, whether liquid or gas, will have one of three states: laminar, turbulent, and transitional. This article discusses flow principles and pressure-based flow measurement. Laminar ...

The AST5300 wet/wet differential pressure sensor from American Sensor Technologies, Mount Olive, N. J., measures the difference in pressure between two points, and, when used with signal processing, ...