Hazards caused by detonation of hydrocarbon-air mixtures have been a matter of concern for a long time. In this pa er, air mixtures have been measured in confined (rectangle shock tube tests) and unconfined (phtic bag tests) condition. Based on the concept of explosion len h, a formula for estimating the critical initiation energy o 8" detonation under unconfined condition is presented Detonation sajy anabsis of the studied hydrocarbons is carried out wing the experimental results. critical initiation energy ofdetonation of some hydrocar t ! on-
Hazards caused by detonation of hydrocarbon‐air mixtures are a continuing problem. Of the factors affecting detonation hazards of hydrocarbon‐air mixtures, additives play an important role. In this paper, a series of experiments are described addressing the influence of chemical additives on the detonation of some hydrocarbon‐air mixtures under confined (rectangle shock tube tests) conditions. The experimental results show that NT (nitric ether or RONO2), PO (1,2‐epoxypropane), and BPO (benzoyl peroxide) have a clear sensitizing effect on the detonation hazards of these mixtures. The mechanistic influence of additives is simply described, according to the chain reaction theory of detonation.
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