The key to UV design is' effective dosage

RED-CFD coupling simulation precise quantification technology

Through RED-CFD coupled simulation analysis, quantify the determination of core parameters such as equipment UV sterilization dose, light source configuration, and water flow rate to ensure high performance and reliability of the product

Accurate quantification

Accurately quantify UV sterilization dose and light field distribution through RED-CFD coupling simulation

Multi physics field simulation

Geometric optical design, multi medium penetration simulation, and multi physics numerical simulation

Shadowless design

Create an efficient UV radiation area without shadows to eliminate design defects in UV reactors

Principle of calculating effective dosage for ultraviolet disinfection

The sterilization effect of ultraviolet disinfection mainly depends on the UV irradiation dose and on-site operation conditions, and the disinfection effect is ensured through scientific calculation

UV dose calculation formula

The core of UV disinfection lies in accurately calculating the effective dose to ensure that the sterilization effect meets the standard requirements

Core formula
UV Dose=I [UV intensity] x t [irradiation time]
Unit: UV Dose (mJ/cm ²)
UV intensity (mW/cm ²)
Exposure time (s)
Factors affecting UV intensity
UVLED matrix output light intensity
Light window transmittance
Water permeability
Light window scaling coefficient

Comparison of Calculation Methods

The comparison between traditional methods and advanced RED-CFD calculation methods reflects the technological advantages

Traditional method: macroscopic mathematical calculation method
Based on average light intensity
Flow direction ⊥ Light source length
Calculate flow rate/set flow rate
Advanced method: CFD-RED dose calculation method
Analysis of water flow conditions (short flow, turbulence, overflow, backflow, etc.)
Particle tracking path
Accurate dose distribution calculation

Light Field Design and Flow Field Optimization Technology

Through geometric optics design and multi physics simulation, achieve light field design and uniform flow field design in areas without UV shadows

Design of light field in areas without UV shadows

Technical principles
Inject all ultraviolet light into the reaction chamber through geometric optics design and multi-media penetration simulation
design goal
Create an efficient ultraviolet radiation area without shadows
Technical advantages
Eliminate design defects in UV reactors: short flow

Design of Uniform Flow Field in Water Body

Flow state research
Identify the maximum flow rate issue that has a significant impact on sterilization effectiveness
Optimization plan
Change the entrance and exit posture and rotate the water body through the irradiation zone
Effect improvement
Reduce the maximum flow rate and improve the sterilization effect

RED-CFD coupling simulation

Simulation technology
Multi physics numerical simulation
Core parameters
UV sterilization dose, light source configuration, water flow rate
Design advantages
Ensure high performance and reliability of the product

Summary of advantages of RED-CFD simulation technology

Accurately quantify UV sterilization dose and light field distribution
Create an efficient ultraviolet radiation area without shadows
Eliminate design defects in UV reactors: short flow
Realize uniform radiation dose absorption through water rotation
Multi physics numerical simulation ensures design accuracy
Ensure high performance and reliability of the product