Airflow direction is an extremely important factor in ensuring air quality and maintaining a sterile environment in a cleanroom. So what is cleanroom airflow direction measurement? What are the steps in the cleanroom airflow direction measurement process? Let’s find out with INTECH Service in the article below!
What is cleanroom airflow direction measurement?
Measuring the direction of airflow in a cleanroom is the process of determining the movement direction of air within a controlled environment. This helps evaluate the effectiveness of the air filtration system, ensuring that clean air is evenly distributed and that dust particles and bacteria do not infiltrate the workspace.
Why Measuring Airflow Direction in Cleanrooms is Necessary
Ensuring Product Quality: Proper airflow direction helps prevent the intrusion of dust particles and bacteria into the production area, thereby ensuring product quality.
Compliance with Standards: Measuring airflow direction helps ensure that the cleanroom complies with air flow standards and meets the requirements of inspection agencies.
Detecting and Resolving Issues: Regular measurement of airflow direction helps detect early issues with the ventilation system, preventing malfunctions and maintaining operational efficiency.
Energy Savings: Adjusting airflow direction appropriately helps save energy and reduce operating costs.
Steps for Measuring Airflow Direction in Cleanrooms
Preparation
Equipment: Smoke generator, thermal anemometer, airflow meter, particle counter (if necessary).
Ensure the cleanroom has been operating stably for a certain period before measuring. Turn off unnecessary equipment to avoid affecting the airflow.
Planning the Measurement
Determine measurement points:
Select locations that represent different areas in the cleanroom (near the door, near the HEPA filter, work area, etc.)
The number of measurement points depends on the size and complexity of the cleanroom.
Determine measurement parameters: Airflow velocity, airflow direction, measurement time at each point, create a data recording table
Measurement
Using a smoke generator: Turn on the smoke generator and direct the smoke to the measuring points; observe the direction of the smoke movement and record it.
Using a heat fan: Place the heat fan in the measuring position and read the value of the air velocity and direction displayed on the screen.
Using an air flow meter: Place the air flow meter in the measuring position and read the air flow value and calculate the air velocity.
Analyzing the results and making a report
Compare the measured values with the standards of air velocity, air flow direction and cleanliness of the cleanroom. Analyze the data to find areas with unstable air flow.
Evaluate whether the ventilation system is operating effectively based on the measurement results.
Synthesize the measurement results; make a report and propose solutions to improve the air quality in the cleanroom if necessary.
Airflow Direction Measuring Devices in Cleanrooms
Smoke Generator
Operating Principle: The device generates a stream of cold, non-toxic, and easily observable smoke. This smoke is brought into the cleanroom, and its movement is monitored to determine the direction of airflow.
Advantages:
Easy to use and intuitive.
Quickly detects swirling air currents and dead zones.
Can be used to test the effectiveness of HEPA filters.
Disadvantages:
Measurement results depend on the observer’s visual perception.
Smoke may affect the production process if not carefully controlled.
JUNRAY Air Flow Direction Tester
Operating Principle: Airflow direction testing devices like JUNRAY use sensors to measure the speed and direction of airflow.
Application: Used to test and verify the distribution of airflow in cleanrooms.
Advantages: Accurate, easy to use, and capable of providing detailed data on the direction and speed of airflow.
Above is the basic information about the air flow measurement service. INTECH Service is a reputable cleanroom measurement service provider with a nationwide service station system and a team of highly specialized engineers. Contact us today to receive the earliest consultation about the service!