Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris.

Figure 17. Pitot tube in a wind tunnel. By pointing the tube directly upstream into the flow and measuring the difference between the pressure sensed by the Pitot tube and the pressure of the ...

Air flow sensors are inserted into a duct or pipe through an access hole to measure air velocity. In other instances a capture hood is used to measure volumetric flow from a grill or exhaust diffuser.

The answer depends on the type of roof you have and where you live. Q: I live in a two-story, single-family home with an ...

An unassuming Canadian, he is widely regarded as a leading global expert on healthier buildings, and specifically, the quality of their interior ... Instead, the flow of fresh air is determined ...

Due to the direction of air flow, the sample is protected from the user but the user is not protected from ... Laminar flow cabinets may have a UV-C germicidal lamp to sterilize the interior and ...

Qu, Yuan Wang, Jinjun Feng, Lihao and He, Xi 2019. Effect of excitation frequency on flow characteristics around a square cylinder with a synthetic jet positioned at front surface. Journal of Fluid ...

Air Knives are pressurized air plenums containing a series of holes or continuous slots through which pressurized air exits in a laminar flow pattern. The exit air velocity then creates an impact air ...

Here are five tips for achieving seamless flow between rooms, according to interior designers. Related: 3 Compelling Reasons to Consider a Closed Floor Plan Do you love traditional design?

Air quality also matters in holistic interior design. ‘Prioritizing materials that minimize off-gassing is ... since this ancient practice seeks to create harmony and balance. ‘Feng shui is about flow ...

An area of low pressure set to move east into the Gulf of Alaska will keep the north-to-northeasterly flow across ...

3D-printed nozzle to promote laminar air flow on the left, stock nozzle on the right. As an experiment to improve the quality of the air flowing out the laser nozzle, [Jesse] researched ways to ...