Could someone please take a look? What’s wrong with my calculation method?
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A single condenser is used to cool fermentation off-gases in systems with a flow rate of 10 T/h; the inlet temperature of the condenser is around 130°C, and the inlet pressure ranges from 0.10 to 0.13 MPa. Circulating water is supplied at a pressure of 0.3–0.4 MPa, at a temperature of 32°C (in summer) and a wet-bulb temperature of 28°C.
Is there anyone who can take a look at it? Thank you
Could any expert help take a look? Thank you so much, I’d be extremely grateful
Steam heat is divided into latent heat and sensible heat
You calculated it based on water; it should be calculated based on steam, so the heat exchange area is much smaller
This post was last edited by wanlirn on 2021-8-16 at 11:33. Heat transfer amount: not done yet. Understood； ； Also, based on the conditions of the circulating water you’ve specified, it seems that the water is flowing through the main pipes of the cooling tower in the workshop for cooling purposes. Generally, the temperature of the return water is around 45–50 degrees; otherwise, the cooling tower wouldn’t be able to handle it. Therefore, a return water temperature of 70 degrees is also unreasonable ； When bidding, they can tell at a glance that you’re an amateur
Your K=700 is the fundamental problem; therefore, such calculations are meaningless.
Fermentation vent volume. . . . . . This kind of thing is very vague. How much moisture is in the gas? How much air? What is the basis for K=700?