Abstract Model scale fire tests were performed in tunnels with varying tunnel widths and
heights in order to study the effect of tunnel cross-section and ventilation velocity on the heat
release rate (HRR) for both liquid pool fires and solid fuel fires. The results showed that for
well ventilated heptane pool fires, the tunnel width nearly has no influence on the HRR
whilst a lower tunnel height clearly increases the HRR. For well ventilated solid fuel fires, the
HRR increases by approximately 25% relative to a free burn test but the HRR is not sensitive …