At a biorefinery which is producing ethanol, an open storage tank is being used to store the ethanol. The level of the fluid in the tank fluctuates between 10 cm and 400 cm from the top of the tank. Since you cannot see inside the tank, an open-ended manometer with water or mercury (Hg) as the manometer fluid is used to determine the height of the fluid. One end of the manometer is attached to the tank 500 cm from the top. A nitrogen (N₂ gas) blanket at atmospheric pressure is maintained over the tank contents. Specific gravities of ethanol and mercury are 0.789 and 13.6, respectively. ✓ 1₂ in 10cm out < 400cm Ethanol 500 CM R H₂O & Hg or When the level of the ethanol in the tank is 150 cm below the top (h= 150 cm), the manometer fluid level in the open arm is at the height of the point where the manometer connects to the tank. What manometer reading, R (cm), would be observed if the manometer fluid is (i) mercury or (ii) water? Which manometer fluid would you use and why? Briefly describe how the system would work if the manometer were filled with ethanol.
At a biorefinery which is producing ethanol, an open storage tank is being used to store the ethanol. The level of the fluid in the tank fluctuates between 10 cm and 400 cm from the top of the tank. Since you cannot see inside the tank, an open-ended manometer with water or mercury (Hg) as the manometer fluid is used to determine the height of the fluid. One end of the manometer is attached to the tank 500 cm from the top. A nitrogen (N₂ gas) blanket at atmospheric pressure is maintained over the tank contents. Specific gravities of ethanol and mercury are 0.789 and 13.6, respectively. ✓ 1₂ in 10cm out < 400cm Ethanol 500 CM R H₂O & Hg or When the level of the ethanol in the tank is 150 cm below the top (h= 150 cm), the manometer fluid level in the open arm is at the height of the point where the manometer connects to the tank. What manometer reading, R (cm), would be observed if the manometer fluid is (i) mercury or (ii) water? Which manometer fluid would you use and why? Briefly describe how the system would work if the manometer were filled with ethanol.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:At a biorefinery which is producing ethanol, an open storage tank is being used to store the
ethanol. The level of the fluid in the tank fluctuates between 10 cm and 400 cm from the
top of the tank. Since you cannot see inside the tank, an open-ended manometer with water
or mercury (Hg) as the manometer fluid is used to determine the height of the fluid. One
end of the manometer is attached to the tank 500 cm from the top. A nitrogen (N2 gas)
blanket at atmospheric pressure is maintained over the tank contents. Specific gravities of
ethanol and mercury are 0.789 and 13.6, respectively.
12 in
110/2
^N₂ out
↑
10cm 2hc 400cm
Ethanol
500
CM
R
u
H₂O or Hg
When the level of the ethanol in the tank is 150 cm below the top (h 150 cm), the
manometer fluid level in the open arm is at the height of the point where the manometer
connects to the tank. What manometer reading, R (cm), would be observed if the
manometer fluid is (i) mercury or (ii) water? Which manometer fluid would you use and
why?
Briefly describe how the system would work if the manometer were filled with ethanol.
(
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