CO2 Separation System with Temperature Control to Reduce Heat Loss
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Solution Overview
Problem
Heat loss due to heat exchange occurs when inside and outside air are used to separate CO2 in existing CO2 separation systems.
Innovation Solution
A CO2 separation system that includes an inside air duct, an outside air duct, a CO2 separator, and temperature adjusters to control the temperature difference between inside and outside air, minimizing heat loss by adjusting the temperature of the air before it enters the CO2 separator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If outside air is used as purge gas for CO2 separation, then CO2 removal efficiency is improved, but heat loss due to heat exchange between inside air and outside air increases
Solution Approach 1:
The temperature adjuster performs preliminary temperature adjustment on the outside air before it enters the CO2 separator, pre-heating or pre-cooling it to reduce the temperature difference with inside air. This preliminary action prevents excessive heat loss during the CO2 separation process while maintaining effective CO2 removal efficiency.
2Productivity
If temperature difference between inside air and outside air is large, then CO2 separation performance is improved, but heat loss increases
Solution Approach 1:
The system dynamically adjusts the temperature parameter of the outside air using the temperature adjuster to optimize the balance between CO2 separation performance and heat loss. By changing the temperature parameter of outside air before it enters the separator, the system maintains adequate temperature difference for separation while minimizing excessive heat exchange losses.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces heat loss during CO2 separation by controlling the temperature difference between inside and outside air, optimizing energy usage and maintaining efficient CO2 removal.
Implementation Method 1
CO2 preferentially permeates the membrane module, so that air with reduced CO2 remains
Implementation Method 2
heat exchange occurs between inside air and outside air, and heat loss due to the heat exchange becomes a problem
Data Source
Figure 1
Figure 2A~2B
Figure 3~4
AI summary
Inside air introduction duct (52) and inside air blow duct (54) introduce and circulate air in a target space inside a room as inside air and return the inside air to the target space. Outside air introduction duct (56) and outside air blow duct (58) introduce and circulate air outside the room as outside air and release the outside air to the outside of the room. CO2 separation element (20) separates CO2 from inside air circulating through inside air introduction duct (52), and introduces CO2 into the outside air circulating through outside air introduction duct (56). First temperature adjuster (4a) and second temperature adjuster (4b) adjust at least one of the temperature of inside air and the temperature of outside air, each of which is introduced into CO2 separation element (20). Controller (5) performs control so that the temperature difference between the temperature of the inside air and the temperature of the outside air, each of which is introduced into CO2 separation element (20), becomes smaller than the temperature difference between the temperature of the air in the target space and the temperature of the air outside the room.