𝗔𝗶𝗿 𝗱𝗶𝘀𝘁𝗿𝗶𝗯𝘂𝘁𝗶𝗼𝗻: 𝘁𝗵𝗲 𝘂𝗻𝗱𝗲𝗿𝗲𝘀𝘁𝗶𝗺𝗮𝘁𝗲𝗱 𝗽𝗮𝗿𝘁 𝗼𝗳 𝗛𝗩𝗔𝗖 𝗱𝗲𝘀𝗶𝗴𝗻

 

 

 In many HVAC projects, a large part of the design effort focuses on equipment selection — chillers, heat pumps or refrigeration units.

Yet in practice, once the installation is running, the real performance often depends on something much simpler: 𝗵𝗼𝘄 𝗮𝗶𝗿 𝗶𝘀 𝗱𝗶𝘀𝘁𝗿𝗶𝗯𝘂𝘁𝗲𝗱 𝗶𝗻𝘀𝗶𝗱𝗲 𝘁𝗵𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴.

🔴Air distribution is often one of the most underestimated aspects of HVAC design.

In large spaces such as logistics warehouses, industrial buildings or sports halls, the challenge is not only producing cooling or heating capacity.

It is 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗶𝗻𝗴 𝘁𝗵𝗮𝘁 𝗮𝗶𝗿 𝗲𝘃𝗲𝗻𝗹𝘆 𝗮𝗰𝗿𝗼𝘀𝘀 𝘁𝗵𝗲 𝗲𝗻𝘁𝗶𝗿𝗲 𝘀𝗽𝗮𝗰𝗲.

Traditional duct systems using punctual diffusers tend to concentrate airflow in specific areas. This creates 𝘁𝗲𝗺𝗽𝗲𝗿𝗮𝘁𝘂𝗿𝗲 𝘀𝘁𝗿𝗮𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻, 𝗱𝗿𝗮𝗳𝘁𝘀 𝗮𝗻𝗱 𝘂𝗻𝗲𝘃𝗲𝗻 𝗰𝗼𝗺𝗳𝗼𝗿𝘁 𝘇𝗼𝗻𝗲𝘀, often associated with the 𝗖𝗼𝗮𝗻𝗱𝗮 𝗲𝗳𝗳𝗲𝗰𝘁.

This is why 𝗽𝗲𝗿𝗳𝗼𝗿𝗮𝘁𝗲𝗱 𝗮𝗶𝗿 𝗱𝘂𝗰𝘁 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 — 𝗯𝗼𝘁𝗵 𝘁𝗲𝘅𝘁𝗶𝗹𝗲 𝗮𝗻𝗱 𝗺𝗲𝘁𝗮𝗹 — 𝗵𝗮𝘃𝗲 𝗯𝗲𝗰𝗼𝗺𝗲 𝗶𝗻𝗰𝗿𝗲𝗮𝘀𝗶𝗻𝗴𝗹𝘆 𝗰𝗼𝗺𝗺𝗼𝗻 𝗶𝗻 𝗹𝗮𝗿𝗴𝗲-𝘃𝗼𝗹𝘂𝗺𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴𝘀, where uniform distribution and low air velocity are essential.

✅Perforated air ducts distribute air 𝗮𝗹𝗼𝗻𝗴 𝘁𝗵𝗲 𝗲𝗻𝘁𝗶𝗿𝗲 𝗹𝗲𝗻𝗴𝘁𝗵 𝗼𝗳 𝘁𝗵𝗲 𝗱𝘂𝗰𝘁, rather than through limited diffusers.

✅ Using calibrated perforations — or permeable fabric — the system creates a 𝗰𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗮𝗻𝗱 𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗲𝗱 𝗮𝗶𝗿𝗳𝗹𝗼𝘄, reducing velocity peaks and improving distribution.

These systems typically operate with 𝗹𝗼𝘄 𝗮𝗶𝗿 𝘃𝗲𝗹𝗼𝗰𝗶𝘁𝗶𝗲𝘀 𝗶𝗻 𝘁𝗵𝗲 𝗼𝗰𝗰𝘂𝗽𝗶𝗲𝗱 𝘇𝗼𝗻𝗲 (𝗯𝗲𝗹𝗼𝘄 𝟬.𝟮–𝟬.𝟯 𝗺/𝘀), helping avoid drafts while maintaining effective air mixing.

✅Perforated ducts can be designed in metal or textile configurations.

The choice is sometimes influenced more by habits than real technical needs.

Durability, maintenance or cleaning conditions may justify one solution over another.

But in reality, the selection should always be based on the specific environment of the installation.

Different shapes and configurations allow adaptation to architectural constraints while maintaining efficient air diffusion.

Uniform temperature, adaptation to different occupied heights, and application-specific constraints — such as swimming pools, cold storage, industrial facilities or retail spaces — are 𝗺𝗮𝗻𝗮𝗴𝗲𝗱 𝘁𝗵𝗿𝗼𝘂𝗴𝗵 𝗰𝗼𝗻𝘁𝗿𝗼𝗹 𝗼𝗳 𝗮𝗶𝗿 𝘃𝗲𝗹𝗼𝗰𝗶𝘁𝘆 𝗮𝗻𝗱 𝗽𝗿𝗲𝘀𝘀𝘂𝗿𝗲 𝗮𝗹𝗼𝗻𝗴 𝘁𝗵𝗲 𝗱𝘂𝗰𝘁.

✅This approach helps achieve stable temperatures in the occupied zone and can also reduce overall energy consumption.

✅In HVAC design, generating capacity is important.

🔵 But in many installations, 𝗵𝗼𝘄 𝗮𝗶𝗿 𝗶𝘀 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 𝘂𝗹𝘁𝗶𝗺𝗮𝘁𝗲𝗹𝘆 𝗱𝗲𝘁𝗲𝗿𝗺𝗶𝗻𝗲𝘀 𝗰𝗼𝗺𝗳𝗼𝗿𝘁, 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 𝗮𝗻𝗱 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲.