Abstract:
An electrolysis device removes a scale component contained in water that is fed to a water heat exchanger. The electrolysis device has a container having a water inlet port and a water outlet port; a plurality of electrodes provided inside the container; and agitation means for agitating water, between adjacent electrodes, that flows from the water inlet port towards the water outlet port.
Abstract:
A heat exchanger includes: a surface with a water-repellent coating. The surface has a surface structure that includes protrusions. Condensed water droplets, each having a droplet diameter that allows a subcooled state to be maintained even under a predetermined freezing condition, combine with one other on the surface and generate an energy. The surface structure uses the energy to remove the combined condensed water droplets from the surface.