Could you please let me know if there are any issues with the calculations in the following file? Your advice is appreciated
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This post was last edited by azhong2074 on 2022-8-9 at 11:54. For HTRI calculation files, change the suffix to htri. Air enters at 105°C and exits at 35°C; water enters at 33°C and exits at 45°C. The air flow rate is 9600 m3/h. The original equipment interface size is 1500x1500. Search and copy
Download points: Wealth -1? Are you asking someone to do something for you?
I’m sorry; I didn’t know that uploading attachments here would require wealth points to download them. I apologize for this and have already deleted the file.
Cooling must be carried out in two stages; otherwise, the heat exchange area would be too large. Circulating water is used in the first stage, while cooling water is used in the second stage, so as to prevent the temperature at the air outlet from rising.
Why does the air need to be cooled? Can’t it be released directly?
The process application is unclear. It is impossible to cool the air down to 35°C and the circulating water to 33°C. Cooling at both ends requires significant investment and high operating costs; the costs and benefits must be evaluated.
What should be the minimum temperature difference between the inlet temperature of the circulating water and the outlet temperature of the air to be considered reasonable?
I haven’t worked on many projects in practice; generally speaking, the greater the temperature difference, the better the heat transfer effect. If the temperature difference is too small, the heat generated and the resulting power loss will be disproportionate. In my opinion, a temperature difference of over 50 degrees Celsius is still something that warrants consideration for recycling. Of course, the greater the temperature difference, the better.