Issues regarding the secondary cooling of circulating cooling water
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I would like to ask fellow sailors: there is existing circulating water, and its temperature after passing through the cooling tower is 32 degrees. There is a spare cooling tower – is it possible to use it for secondary cooling in order to lower the temperature further?
Yes, but the effect is not good. Instead of using them in series, it’s better to use them in parallel to make effective use of the temperature difference
Yes, but the effect is not good. Instead of using them in series, it’s better to use them in parallel to make effective use of the temperature difference
Could you give a general explanation? In parallel?
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It is too affected by ambient temperature, and using it in series requires an additional lift pump, which increases energy consumption; it doesn’t seem cost-effective. Parallel connection can be considered
The outlet water temperature is 32 degrees, which is indeed a bit high; let’s check whether it’s due to high air humidity or high ambient temperatures. If that’s the case, there’s no need for series connection; even if one is used, the effect will be limited. But if the cooling tower is at full load and the temperature cannot be reduced, either series or parallel connection is possible.
This is mainly determined by the ambient temperature and humidity. When the external temperature is high and the humidity is high, the temperature of the circulating water cannot be reduced. If external factors are excluded, a series connection can be effective
This post was last edited by fangbin468 on 2017-3-22 at 10:49. The effectiveness is unstable depending on the season as well as air temperature and humidity. Using an ice machine as a cooling source results in high costs both in terms of initial investment and operating expenses. It’s definitely possible to do it if costs are not a concern.