This study examines the use of CFD simulation to enhance ventilation systems in industrial buildings for improved air quality and energy efficiency. It analyzes different ventilator types and configurations to optimize occupant comfort, temperature control, and air changes per hour. The findings underscore the importance of CFD in designing cost-effective, energy-efficient manufacturing units while addressing the growing concerns of indoor air quality and thermal comfort.

1. Power of CFD simulation to predict ventilation behavior
in Manufacturing units

2. Introduction:
In recent years, stringent indoor air quality and thermal comfort is
gaining importance in design of Industrial buildings. This study aims to
find the optimal ventilation system and designed intently to improve
energy efficiency and indoor air quality. CFD codes were used to
simulate every category of the industrial complex in order to validate
the actual building in a typical summer day and the results were
compared.

4. Scope for CFD Analysis
To compare and evaluate the ventilation effectiveness of Turbine
ventilators vs. Centrifugal upblast ventilators.
To discharge exhaust air to eliminate interference with other equipment or human
activity.
To understand the flow pattern inside the building and position the ventilators to get
the desired ACPH (Air Changes per Hour).
Thermal distribution at the working plane (150 cm from ground) to determine human
comfort level.
4

5. 5
Parameter Values
Area of target building 25,560 Sqft
Total area of Industrial complex 80,000 Sqft
Process heat load
150 KW (Averaged from various
sources)
U-Value of Galvanized Aluminum
Steel sheet
1.45 BTU/hr-Sqft-F
Ambient Temperature 37 C
Ambient pressure 1 Atm
Wind velocity 3.5 m/s
The Conditions

6. 6
Our approach and methodology –
•The whole industrial complex is modelled as per 2-D draft sheets and material
properties assigned as per specifications.
•Trees, tarmac roads and landscape are considered for the analysis since the
roughness can disturb the flow.
•Large Eddy Simulation (LES) turbulent model is used since the feature can solve
explicitly for larger eddies and also solve for smaller eddies, swirls and vortices by
using Sub-Grid Scale model.
•Wind tunnel around the Industrial complex is modelled as per standards to
simulate real case scenario.

9. SUMMARY –
With more complex designs, stringent safety requirements and
ever-increasing energy concerns, designing for Energy
efficient manufacturing units has become critical for
Architects and LEED consultants. Using CFD empowers
Engineers to optimize building design, especially in early
stages when changes can be implemented efficiently and cost-
effectively.

10. In this Case study, we were able to provide sufficient
insight into occupant comfort level, indoor air quality,
temperature, heat loss and solar heat gain through the
structure and compare it with different ventilators and
positions.
CFD simulation is a powerful tool that can accurately
predict ventilation behavior in manufacturing units.
This technology enables engineers to simulate and
analyze the airflow, temperature distribution, and
contaminant dispersion within the facility.

11. At Graphler Technology solutions, we provide industry-
leading CFD Analysis Services, CAD Conversion
Services and Pressure Vessel Analysis Services. We can help
manufacturers to optimize their ventilation systems for improved
air quality, worker comfort, and energy efficiency. With the
power of CFD, many companies can make informed decisions
about their ventilation systems and improve their overall
manufacturing operations.