Which factor is a climate-related consideration for dilution ventilation?

Which factor is a climate-related consideration for dilution ventilation?

• A. Moderate Climate
• B. Low Toxicity
• C. Occurs Uniformity in Time
• D. Supply Air Not Contaminated

Answer: (A)

Dilution ventilation works by bringing in outdoor air to dilute indoor contaminants, so climate directly affects how feasible and energy-efficient this approach is. In a moderate climate, outdoor conditions like temperature and humidity stay within comfortable ranges for extended periods, making it easier and cheaper to condition the incoming air. That means you can maintain indoor comfort while providing the needed ventilation without excessive heating or cooling loads, which is why a moderate climate is a favorable factor for dilution ventilation. The other considerations aren’t about climate: toxicity relates to how hazardous the contaminant is, uniformity in time concerns whether contaminant generation is steady, and supply air not contaminated addresses the quality of the air being supplied rather than outdoor climate.

Dilution ventilation works by bringing in outdoor air to dilute indoor contaminants, so climate directly affects how feasible and energy-efficient this approach is. In a moderate climate, outdoor conditions like temperature and humidity stay within comfortable ranges for extended periods, making it easier and cheaper to condition the incoming air. That means you can maintain indoor comfort while providing the needed ventilation without excessive heating or cooling loads, which is why a moderate climate is a favorable factor for dilution ventilation. The other considerations aren’t about climate: toxicity relates to how hazardous the contaminant is, uniformity in time concerns whether contaminant generation is steady, and supply air not contaminated addresses the quality of the air being supplied rather than outdoor climate.