VENTILATION DUCT SYSTEMS
VENTILATION DUCT SYSTEMS
Industrial ventilation duct systems are fundamental to the efficient transport of dust-laden air, fumes and process gases. Envirovent engineers custom duct systems that optimise airflow, minimise pressure losses and maintain the transport velocities required for reliable, long-term operation in demanding industrial environments.
DESIGN PRINCIPLE
The performance of any industrial ventilation system depends on correct duct sizing, airflow distribution and pressure balancing. Properly engineered duct systems maintain the required transport velocities while minimising pressure losses, ensuring efficient dust and fume extraction with balanced airflow throughout the system. Poorly designed ductwork can result in excessive energy consumption, dust deposition, material build-up and unbalanced airflow, reducing system performance and increasing maintenance requirements.
Design methodologies include:
✓ Equal Friction method.
✓ Static Regain method.
✓ Constant Velocity method.
The selection of the appropriate design methodology depends on the application, required transport velocity, pressure loss limitations and system configuration.
Typical duct design details:
Envirovent typically designs industrial dust extraction, fume extraction and process ventilation duct systems using the Constant Velocity Method. This approach maintains the transport velocity required to keep particulate matter suspended within the airstream while ensuring balanced airflow throughout the system.
In multi-branch duct systems, balanced airflow is achieved by controlling system resistance within individual branches. Where required, balancing devices are incorporated to regulate airflow distribution while maintaining the specified transport velocity throughout the system.
This design philosophy minimises pressure losses, reduces the risk of material settlement and blockages, and delivers reliable long-term performance with lower operating costs.
Envirovent designs, manufactures and installs complete industrial duct systems for dust extraction, fume extraction and process ventilation applications, engineered to provide optimum airflow distribution, low pressure losses and dependable operation.
KEY BENEFITS
✓ Custom engineered duct layouts
✓ Optimised airflow and pressure balancing
✓ Low pressure loss design
✓ Balanced system performance
✓ Robust heavy-duty construction
✓ Complete installation and commissioning
TYPICAL DUCT PRESSURE LOSS vs AIR VELOCITY
