Natural Ventilation Design Explorer

Analyze window configurations for optimal natural ventilation

Key Assumptions

• Wind Direction: Left to right (better ventilation on left side)
• Room Volume: 50 m³ for air exchange calculations
• Temperature Difference: 5°C between indoor and outdoor
• Wind Speed: Constant at 3 m/s
• Wall Dimensions: 3m × 3m
• Window Efficiency: Varies by type (top-hung best for stack effect)

Sample Window Configurations

Below are pre-calculated examples showing different window types and their natural ventilation performance. Each configuration demonstrates the visual rendering and calculated air exchange rate.

Side-hung Window

side_hung_default

Dimensions: 50% × 50%

Opening Angle: 45°

Position: X=5, Y=4

Air Exchange Rate: 13.66 [1/h]

Top-hung Window

top_hung_high

Dimensions: 60% × 40%

Opening Angle: 60°

Position: X=3, Y=6

Air Exchange Rate: 26.33 [1/h]

Bottom-hung Window

bottom_hung_low

Dimensions: 40% × 60%

Opening Angle: 30°

Position: X=7, Y=2

Air Exchange Rate: 1.65 [1/h]

Sliding Window

sliding_wide

Dimensions: 70% × 50%

Opening Angle: 90°

Position: X=8, Y=4

Air Exchange Rate: 14.5 [1/h]

Pivot Window

pivot_center

Dimensions: 50% × 50%

Opening Angle: 75°

Position: X=5, Y=5

Air Exchange Rate: 35.36 [1/h]

About This Tool

This Natural Ventilation Design Explorer demonstrates scientific calculations for natural ventilation based on window geometry, position, and opening angle. The tool combines stack effect (thermal buoyancy) and wind-driven ventilation models to calculate air exchange rates.

Research Application: This tool is designed for architects, engineers, and researchers working on building ventilation design and energy efficiency optimization.

Generated from interactive Dash application • Deployed via GitLab Pages