Which floor is suitable for placing a heat exchanger that uses circulating water as a cooling medium?
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I have a question for the professionals here: on which floor is it appropriate to locate heat exchangers that use circulating water as a cooling medium? Are there any restrictions on the installation height?
Whether it’s suitable depends on the layout requirements; as long as it doesn’t exceed the head pressure that can be achieved by the water supply, it’s fine
By removing the maximum height that can be reached by the head, and taking resistance into account, any height lower than this value is acceptable.
At the 1st floor, the pump outlet pressure is 0.40 MPa, and the return water pressure is 0.25 MPa. Is it feasible to place the heat exchanger on the 3rd floor at a height of 18 meters?
Ignoring friction losses, there is still a pressure at 18 meters: (0.4 – 18/10.33 × 0.101352) Mpa. To eliminate the pressure drop, simply discard the digits after the decimal point.
According to your formula, the inlet pressure of the heat exchanger at 18 meters is approximately 0.22 MPa. Should the outlet pressure be calculated as 0.25 + 18/10.33×0.101352? Or is the outlet pressure equal to the inlet pressure?
For a precise calculation, the pressure drop due to resistance must be taken into account.
This needs to be considered as a whole; as long as the circulating water supply meets the requirements of the heat exchanger, that’s sufficient.