Ventilation strategies in HVAC

Here are some common ventilation strategies:

1. Natural Ventilation:

Uses natural airflow, wind, and temperature differences to ventilate buildings.

2. Mechanical Ventilation:

Employs fans, blowers, and ducts to circulate and exchange air.

3. Hybrid Ventilation:

Combines natural and mechanical ventilation strategies.

4. Displacement Ventilation:

Introduces fresh air at floor level, displacing stale air upwards.

5. Dilution Ventilation:

Dilutes pollutants with fresh air, rather than removing them.

6. Exhaust Ventilation:

Removes stale air and pollutants from buildings.

7. Supply Ventilation:

Introduces fresh air into buildings.

8. Balanced Ventilation:

Provides equal rates of exhaust and supply ventilation.

9. Task Ventilation:

Provides ventilation specifically for workstations or tasks.

10. Spot Ventilation:

Focuses ventilation on specific areas or sources of pollution.

11. Heat Recovery Ventilation (HRV):

Recovers heat energy from exhaust air and transfers it to fresh air.

12. Energy Recovery Ventilation (ERV):

Recovers both heat and moisture energy from exhaust air.

13. Demand-Controlled Ventilation (DCV):

Adjusts ventilation rates based on occupancy, humidity, and pollutants.

14. Mixed-Mode Ventilation:

Combines natural and mechanical ventilation, adjusting to changing conditions.

15. Personal Ventilation:

Provides individualized ventilation for occupants.

These ventilation strategies can be applied in various combinations to achieve optimal indoor air quality, comfort, and energy efficiency.

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