At the heart of a thermal anemometer are two sensors: an air velocity sensor and a temperature compensation sensor. The velocity sensor is heated to an elevated temperature (relative to the ...

Figure 1. An example of an air valve and room temperature controller, both of which are used in lab VAV systems. (Photo courtesy of Triatek.) Terminal devices, pressurization, supply air, proper ...

VAV laboratory fume hoods have dominated the laboratory design world for the last 25 years. Conventional wisdom suggests that the specification of the design exhaust flow rate for them is an ...