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Updated: Dec 11, 2025

Determining Viral Disinfection Efficacy of Hot Water Laundering
Published on: June 21, 2022
Rapid simulation of viral decontamination efficacy with UV irradiation
1Department of Mechanical Engineering 6117 Etcheverry Hall, University of California, Berkeley, CA, 94720-1740, USA.
Abstract:
This paper focuses on viral decontamination by ultraviolet (UV) irradiation technologies. This work develops an efficient and rapid computational method to simulate a UV pulse in order to ascertain the decontamination efficacy of UV irradiation for a surface. It is based on decomposition of a pulse into a group of rays, which are then tracked as they progress towards the target contact surface. The algorithm computes the absorption at the point of contact and color codes it relative to the incoming irradiation. This allows one to quickly quantify the decontamination efficacy across the topology of a structure.

