Does the change in liquid level in the distillation tower in air separation represent the amount of cooling capacity?
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Does the change in liquid level in the distillation tower in air separation represent the amount of cooling capacity? Can the amount of air supplied be used to determine the cooling capacity?
The amount of cooling capacity is primarily determined based on the main cooling liquid level, while the cooling capacity required is provided by the expander. Just like when you eat, being full is the amount you need, but this amount is not absolute; it depends on your needs. If measured by supply volume, an inappropriate situation will arise. The production fluctuations in the air separation tower mainly depend on changes in atmospheric temperature; no adjustment is required when the product output remains constant. Therefore, using the main cooling fluid level as a reference is the most straightforward approach, for reference only.