For the purpose to obtain knowledge about the behavior of fire plume within vertical shaft, a series of full-scale experiments was carried out. In these experiments, data about distribution of temperature, gas (CO
2) concentration and pressure within vertical shaft etc. could be obtained. As a result of this study, the temperature within vertical shaft decreased as measurement point of temperature became higher from bottom of vertical shaft owing to heat loss to the wall. Then mass flow rate increased as condition floor became higher. Based on correlation between the non-dimensional temperature Δ
Ts,F /
T∞ and non-dimensional heat release rate
QzF*, simple formula for predicting temperature distribution within vertical shaft was proposed.
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