How does temperature stratification affect mine ventilation?

Temperature stratification impacts mine ventilation significantly because warmer air is less dense than cooler air, causing it to rise towards higher areas within the mine. This behavior leads to uneven distribution of air, as warmer air accumulates near the top while cooler air stays closer to the floor. Consequently, this stratification can create hotspots where temperatures are higher and hinder adequate ventilation throughout the entire mining area.

The resultant stratification can pose safety risks, as miners may face varying temperatures depending on their location within the mine, which can affect comfort and productivity. Additionally, improper ventilation due to temperature stratification can lead to the accumulation of harmful gases in cooler, lower areas where airflow might be insufficient. Therefore, understanding and addressing temperature stratification is crucial for maintaining effective ventilation and ensuring a safe working environment in mines.