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Video of a Venturi meter used in a lab experiment Idealized flow in a Venturi tube. The Venturi effect is the reduction in fluid pressure that results when a moving fluid speeds up as it flows from one section of a pipe to a smaller section. The Venturi effect is named after its discoverer, the 18th-century Italian physicist Giovanni Battista ...
For air with a heat capacity ratio =, then =; other gases have in the range 1.09 (e.g. butane) to 1.67 (monatomic gases), so the critical pressure ratio varies in the range < / <, which means that, depending on the gas, choked flow usually occurs when the downstream static pressure drops to below 0.487 to 0.587 times the absolute pressure in ...
Pressure drop (Δp) Liquid-to-gas ratio (L/G) Liquid-inlet pressure (p L) Removal efficiency: Applications: Gases: 1.3–13 cm of water 7-13 L/m 3: 100-830 kPa 95% for very soluble gases Pulp and paper industry Chemical process industry Food industry Metals processing industry Particles: 0.5-5 in of water 50-100 gal/1,000 ft 3: 15-120 psig 1 ...
Darcy–Weisbach equation calculator; Pipe pressure drop calculator Archived 2019-07-13 at the Wayback Machine for single phase flows. Pipe pressure drop calculator for two phase flows. Archived 2019-07-13 at the Wayback Machine; Open source pipe pressure drop calculator. Web application with pressure drop calculations for pipes and ducts
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An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.
This air purifier has it all: an H13 HEPA filter that effectively filters out tiny particles; a quiet sleep mode; and an aroma pad that'll make your space smell super fresh.
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