物理水处理（PWT）装置被定义为一种非化学水处理方法，用于防止或缓解水垢。在不同的操作条件下，使用了三种不同的PWT装置，包括永磁体、电磁线圈装置和高压电极。这项研究提出了大量沉淀作为PWT的机理，并进行了大量实验测试，以评估PWT的性能。在传热试验段获得的污垢阻力结果清楚地表明，当PWT装置配置在最佳条件下时，PWT的益处。获得了SEM和X射线衍射方法的结果，以进一步检查未处理和PWT情况下的鳞片晶体结构差异。 此外，还测量了水样的表面张力，发现PWT在重复处理下，如在冷却塔应用中，表面张力降低了约8%。单位:SICitation:Symposium，ASHRAE交易，第109卷，pt。1.

The physical water treatment (PWT) device is defined as a non-chemical method of water treatment utilized for the purpose of scale prevention or mitigation. Three different PWT devices, including permanent magnets, solenoid coil device, and high-voltage electrode, were used under various operating conditions. This study proposed a bulk precipitation as the mechanism of the PWT and conducted a number of experimental tests to evaluate the performance of the PWT. The results of fouling resistances obtained in a heat transfer test section clearly demonstrated the benefit of the PWT when the PWT device was configured at an optimum condition. The results of SEM and X-ray diffraction methods were obtained to further examine the difference in scale crystal structures between the cases of no treatment and PWT. Furthermore, the surface tension of water samples was measured, and it was found that the PWT reduces the surface tension by approximately 8% under repeated treatment as in cooling-tower applications.Units: SI