Practical Process Engineering

#Chimney_Effect or #Stack_Effect The chimney effect, also known as the stack effect, is the tendency of heated air or gas to rise in a duct or other vertical passage, as in a chimney, small enclosure, or building, due to its lower density compared to the surrounding air or gas. The presence a chimney enhances the effect for several reasons: 1- The lower effective section increases the air speed in the chimney; this lowers the pressure in the chimney, creating a greater difference in pressure with the rest of the interior space, thus accelerating the air movement (Venturi effect). 2- Being tall, the chimney increases the temperature difference between the air intake and exhaust points, increasing the Venturi effect. 3- Even a slight wind lowers the pressure at the chimney exhaust, and consequently increases the efficiency of air extraction.

#Catalyst #Johnson_Mattey #Journal_Archive_Since1957 Check out below website for free access to Johnson Mattey journal since 1957. All articles are free but very very invaluable. If you are interested in catalytic reaction engineering, this archive is the best gift to you: https://www.technology.matthey.com/journal-archive/

Steam trap handbook- Emerson/Yarway- Latest Version https://bit.ly/2KYGWOe

Control Valve Handbook- Emerson/Fisher- Latest Version https://bit.ly/2Mib1xE

Watch this video: Effect of only one droplet of antifoam Source: LinkedIn

Chemical Engineering Progress Magazine, August 2018 https://bit.ly/2OC9XBj

2018

2017

2017

2018

2018