The paper presents experimental research findings for the characteristics of physical and chemical processes in the seat of fire at different stages of fire development and suppression. Combustion product temperatures and composition, as well as the luminous intensity of the flame were recorded. The research was carried out using a model of class A fire. The most effective combinations of technical equipment were determined that are necessary and sufficient for early fire detection, timely suppression initiation, combustion and smoldering completion. The minimum volumes of a firefighting liquid (water) necessary and sufficient to suppress combustion were determined. The benefits of using feedback systems during firefighting were substantiated. These systems optimize the consumption of fire-extinguishing agents and time of fire suppression by monitoring the fire behavior in real time. Recommendations were made on the engineering of automatic indoor fire suppression systems that optimize the conditions of firefighting and minimize threat to people’s lives and health.

本文介绍了火灾发展和扑灭不同阶段火灾现场物理化学过程特征的实验研究结果。记录燃烧产物的温度和成分，以及火焰的发光强度。该研究是使用A级火灾模型进行的。确定了最有效的技术设备组合，它们对于早期火灾探测、及时灭火启动、燃烧和阴燃完成是必要和充分的。确定了抑制燃烧所必需和足够的灭火液体（水）的最小体积。在消防过程中使用反馈系统的好处得到了证实。这些系统优化了灭火剂的消耗和灭火时间通过实时监控火灾行为来灭火。对自动室内灭火系统的工程提出了建议，以优化消防条件并最大限度地减少对人们生命和健康的威胁。