Cleanroom HVAC engineering is not an easy thing. It takes a mix of engineering skills, understanding the particle-generating potential of the process, and experience.
Cleanroom HVAC engineering is not an easy thing. It takes a mix of engineering skills, understanding the particle-generating potential of the process, and experience.
It is easy to make a room clean if no one is inside, with no equipment, and no material movement. But operations occur in cleanrooms and must be accounted for in the HVAC calculation. Below are some other elements that influence the required airflow.
The HVAC system is at the heart of the cleanroom. Although many clients are unenthusiastic when broaching the subject, the HVAC system should not be overlooked given its central role. HVAC is actually the most complex and important system of a cleanroom facility as the HVAC is responsible for controlling air cleanliness, temperature, humidity, and pressure. This article aims at simplifying the cleanroom HVAC concept to facilitate conversations with your cleanroom supplier for your next project.
Heating, Ventilation and Air Conditioning (HVAC) are used in the cleanroom environment primarily to prevent contamination, but also to provide a comfortable working environment for people in the room.
The HVAC system is at the heart of the cleanroom. Although many clients are unenthusiastic when broaching the subject, the HVAC system should not be overlooked given its central role. HVAC is actually the most complex and important system of a cleanroom facility as the HVAC is responsible for controlling air cleanliness, temperature, humidity, and pressure. This article aims at simplifying the cleanroom HVAC concept to facilitate conversations with your cleanroom supplier for your next project.
If you have a cleanroom, you need to take care of your HVAC. Here are 5 checkpoints to keep you running efficiently and economically.
While the advanced air filtration systems in modern cleanroom HVACs trap most dust particles, cross contamination from dust is still a concern. Dense dust, which has high water content, and metal-containing dust can easily find its way into cleanrooms via things like the corrosion of faucets and plumbing or technician clothing. A careful protocol is necessary to remove these dust particles and avoid spreading contaminates during cleaning.
Clients often come to me specifically requesting an “ISO 7 cleanroom” or an “ISO 8 cleanroom.” What they often fail to realize is that the ISO class does not define the layout of the cleanroom. It only defines the cleanliness level that needs to be met. In fact, the ISO classification actually corresponds to a specification of how clean the cleanroom must be. The ISO 14464-1 standard doesn’t say how to design the cleanroom, it only specifies the maximum quantity of air particles allowed.
Heating, Ventilation and Air Conditioning Systems (HVAC). CLIN AC modules maintain the narrow temperature range required by garbed personnel and sensitive equipment inside a modular cleanroom.
Several configurations are available, with return air recirculated through Vertical Air Return modules mounted outside the cleanroom or directly through the cleanroom panels.
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