Cooling the water tank
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There are currently two water tanks with a capacity of 100 cubic meters each, and it is planned to lower the temperature of the water in them from around 70°C to below 35°C. How should this be done? Could everyone please give some advice? Currently, it is planned to add internal coils, but how should the size and quantity of these coils be determined? Are there any standards to refer to? What if an external condenser is added to create a circulation? The inlet temperature of the cooling water is around 28°C in summer; the storage tank receives water intermittently at a temperature of about 70°C, with continuous water discharge. I’m not sure if I made myself clear
Is it necessary for the water temperature in the tank to drop? An external cooler is better, but running a circulation system is somewhat wasteful; if only the temperature of the water output matters, then a cooler installed at the outlet is sufficient, and there’s no need for an external circulation pump
Thank you for the answer. Are coolers the same as condensers? Controlling the outlet temperature is a good approach; the required outlet flow rate is relatively low, with a maximum of 20 cubic meters per hour. What would be suitable to use?
There is no phase change in the cooler, but there is a phase change during condensation. To select the appropriate model, it is also necessary to know the tower height in order to calculate the inlet pressure, as well as the flow rate and pressure at the cooling water inlet, along with the required outlet pressure
Get an air-cooled radiator; if that doesn’t work, use a cooling tower and integrate it with the existing piping.
Check the liquid level in the tank, do some calculations, and choose a standard floating-head heat exchanger; cooling with circulating water will suffice. If the level is high enough and there is sufficient space, air cooling can also be used, as it has relatively lower operating costs
Why not cool it down at the source? Is this steam condensate? ? Adding internal coils is troublesome, and the temperature is difficult to control. An external cooler is more suitable.
An external plate-type condenser, along with a temperature controller and solenoid valve, is sufficient; this allows the temperature inside the tank to be kept within the desired range. If it exceeds that range, heat exchange takes place automatically. I have built such devices before, using them to control the temperature of emulsions in CNC machines in order to improve precision. The principle is the same as yours – it’s used to control the outlet temperature
There is a need for space to access the cooling tower, and it’s quite tight at the moment