Maintaining A/C-System Performance With UV-C: Ultraviolet light proven effective for restoration and continuous maintenance of coils

摘要

As air-conditioning equipment ages, its ability to maintain adequate space temperatures and humidity levels declines. Often, the culprit is reduced coil heat-transfer effectiveness, or the ability of air-handling-unit (AHU) cooling coils to remove heat from air. Evidence shows this drop in performance can occur within five years of startup. Typically, reduced heat-transfer effectiveness results from the buildup of contaminants on coil surfaces. This accumulation of organic material causes higher leaving-air wet-bulb temperature, meaning an AHU is removing less water from air and, as a result, space humidity is elevated. Additionally, coil pressure drop is higher and, with constant-volume fans, airflow is reduced.