CONTACT SUFRACE-TREATED PRODUCT, LIQUID CIRCULATION SYSTEM AND LIQUID HEAT EXCHANGER SYSTEM

摘要

In a system that uses liquid, a contact surface-treated product, of which a contact surface that contacts the liquid is treated, varies its contact angle with the liquid according to operating temperature of the system, and has a contact surface of which a predetermined temperature at which the contact angle becomes 90 degrees is set to fall within the range of the operating temperature.