煙えん突とつ効こう果か

noun

stack effect; chimney effect

Technical term in building physics and fire safety: the buoyancy-driven airflow caused by temperature differences between inside and outside a building, similar to a chimney.

• 高こう層そうビルでは煙えん突とつ効こう果かによって空くう気きが上じょう昇しょうする。

  In high-rise buildings, air rises due to the stack effect.

• 煙えん突とつ効こう果かは火か災さい時じの煙けむりの広ひろがりに影えい響きょうする。

  The stack effect influences smoke spread during a fire.