Review of Concepts: Air Recycling Systems (closed-loop/open-loop)

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SUMMARY

This discussion focuses on the classification of air recycling systems into closed-loop and open-loop categories, specifically regarding CO2 removal and oxygen supply. The correct classifications established are: Closed-loop CO2 removal includes Rapid amine and Lithium hydroxide, while Closed-loop oxygen supply is represented by Water electrolysis. Open-loop CO2 removal is achieved through Metal oxide absorbers, and Open-loop oxygen supply includes Cryogenic tanks and Chlorate candles. The discussion clarifies common misconceptions about these systems.

PREREQUISITES
  • Understanding of closed-loop and open-loop systems
  • Knowledge of CO2 removal techniques
  • Familiarity with oxygen supply methods
  • Basic concepts of chemical processes involved in air recycling
NEXT STEPS
  • Research the principles of Water Electrolysis in air recycling systems
  • Explore the applications of Lithium Hydroxide in CO2 removal
  • Investigate the functionality of Metal Oxide Absorbers
  • Learn about the operational mechanisms of Cryogenic Tanks in oxygen supply
USEFUL FOR

Engineers, environmental scientists, and professionals involved in air quality management and recycling system design will benefit from this discussion.

Jonathan F
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Homework Statement
Review of Concepts: Air Recycling Systems
Classify each of the following methods according to whether it is used to supply oxygen or remove CO 2 , and whether it is most closely associated with an open-loop or closed-loop process.
Relevant Equations
1. Chlorate Candles
2. Metal Oxide Absorbers
3. Rapid Cycling Anime System
4. Water Electrolysis
5. Cryogenic Storage Tanks
6. Lithium Hydroxide Granules
Hey, first post here.
So I have to classify these 6 elements under closed-loop/open-loop system and under CO2 removal/oxygen supply.
I thought it should be:
Closed-loop CO2 removal: Rapid cycling anime, Lithium granules
Closed-loop oxygen supply: Water electrolysis, Cryogenic tanks
Open-loop CO2 removal: Metal oxide absorber
Open-loop oxygen supply: Chlorate candles

But I was wrong. Can someone please help me figure out how it is supposed to be arranged?
Thank you
 
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Jonathan F said:
I thought it should be:
Closed-loop CO2 removal: Rapid cycling anime, Lithium granules
Closed-loop oxygen supply: Water electrolysis, Cryogenic tanks
Open-loop CO2 removal: Metal oxide absorber
Open-loop oxygen supply: Chlorate candles

But I was wrong. Can someone please help me figure out how it is supposed to be arranged?
Thank you
Cryogenic tanks are definitely "open loop oxygen supply" category. Water electrolysis may be open or close loop depending on circumstances, but typically is open loop. Also, "amine", not "anime".
 
trurle said:
Cryogenic tanks are definitely "open loop oxygen supply" category. Water electrolysis may be open or close loop depending on circumstances, but typically is open loop. Also, "amine", not "anime".
Thx, I guess anime was an instinct.
The solution was:
Oxygen supply -
cryogenic (open)
chlorate candles (open)
water electrolysis (closed)

co2 removal -
lithium hydroxide (open)
metal oxide (closed)
rapid amine (closed)
 
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