Table 2.

Summary of acoustic extinction limit and the flame parameter, where the unit of $P_{\mathit{ex}}$ is Pa.

Fuel	Height [m]	HRR [W]	$\mathit{Fr}$	f  [Hz]	$P_{\mathit{ex}}$ [Pa]	Fitting correlation	Source
3 m/s firebrand	0.028	10.0	32.14	95–105	1.5–2.3	$P_{\mathit{ex}}=0.09f-6.74$	15
Propane gas	0.010	11.7	0.003	50–70	1.0–3.1	$P_{\mathit{ex}}=0.11f-4.5$ 2	This work
3 m/s dripping	0.010	16.5	90	90–110	6.3–8.6	$P_{\mathit{ex}}=0.13f-3.89$	14
Propane gas	0.015	17.9	0.005	50–70	1.2–3.3	$P_{\mathit{ex}}=0.11f-4.5$ 1	This work
Candle	0.012	20	0.83	90–110	6.4–9.8	$P_{\mathit{ex}}=0.18f-9.81$	14
Methane	0.150	66.2	0.46	50–125	42.7–101.6	$P_{\mathit{ex}}=1.01f-4.22$	6
n-Pentane	0.040	126	0.79	30–50	16.7–36.0	$P_{\mathit{ex}}=1.93f-42.52$	7
n-Octane	0.017	126	0.34	30–50	14.9–22.4	$P_{\mathit{ex}}=0.62f-3.41$
n-Hexane	0.028	126	0.54	30–50	14.5–28.6	$P_{\mathit{ex}}=0.99f-14.68$
n-Heptane	0.018	126	0.35	30–50	13.6–29.9	$P_{\mathit{ex}}=0.84f-11.41$
0 m/s firebrand	0.08	250	0.96	95–105	9.5–10.1	$P_{\mathit{ex}}=0.07f+3.07$	15
Methanol spray	0.40	1,137	24	70–140	13.0–24.1	$P_{\mathit{ex}}=0.19f-0.76$	9
Methane	0.20	3,450	0.08	30–50	50.9–77.1	$P_{\mathit{ex}}=1.26f+15.88$	8
Methane	0.29	7,640	0.28	30–50	53.9–80.6	$P_{\mathit{ex}}=1.31f+17.07$
Methane	0.38	11,720	0.52	30–50	56.1–82.9	$P_{\mathit{ex}}=1.31f+19.66$