How to calculate the water consumption for a water cooler
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We need to cool kerosene with a temperature of 2.5 kg/s and 250°C down to 50°C. How should we calculate the amount of cooling water required by the cooler?
Can’t you do heat balance anymore? Find the specific heat of the kerosene you use, and then you can determine the heat transfer amount. Once you know how much temperature difference is required for cooling, you can figure out the amount of water needed.
Theoretical values are of course taken into account, but the issue is that actual heat exchangers have problems related to their heat transfer efficiency. It’s also necessary to determine what volume is required, what flow rate should be used, and how much time it will take for the temperature to drop. I’m wondering if there are any empirical formulas provided by manufacturers.
What everyone has said is more or less correct; once we have the data for the hot fluid, we also need the parameters of the cold fluid, that is, the cooling water, such as the inlet and outlet temperatures. However, the calculation results obtained in this way are also rough; whether these values are valid depends on the design of the heat exchanger. You can consult materials on heat transfer in chemical engineering.
It’s this formula; it’s because of this that your δ is so excellent
It’s this formula – why is your δ so excellent?
Rough… For more precise and complex calculations, they are all derived from so-called rough equations… First, perform the calculations in a rough manner, and then use precise programs/software to verify them.