1. Increasing C leads to a decrease in spray range and width. The spray cone angle decreases gradually with increasing C. For the spray particle sizes D 32 and Dv90, an increase in gel concentration tends to lead to larger D 32 and Dv90 values. Under high concentration (C) conditions, both D 32 and Dv90 values are generally larger compared to low concentration conditions. (5) Under relatively ideal experimental conditions, as outlined in Section 3.2.1, with d 0 = 2 mm, N holes = 16, and C = 0.1%, the mass flow rate of liquid CO 2 is 1.22 kg/min, while the mass flow rate of gel solution is 6.65 kg/min. The spray range reaches 8.1 m, with a spray width of 0.64 m. The spray particle size D 32 ranges from 123.4 ?m to 172.5 ?m. These research findings can serve as references for subsequent engineering applications;CRediT authorship contribution statement Liu Changchun: Conceptualization, Methodology, Software, Validation, Formal analysis, Investigation, Writing-original draft, Visualization. Shuang Peng: Conceptualization, Methodology, Software, Writing-review & editing, Supervision. Xue Du: Conceptualization, Methodology, Writing-review & editing
2. Synthesis and characteristics of fire extinguishing gel with high water absorption for coal mines;S Li;Process Safety and Environmental Protection,2019
3. Experimental Study on Thermosensitive Hydrogel Used to Extinguish Class A Fire;L Ma;Polymers,2021