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In order to design the relief system size of di-tert-butyl peroxide(DTBP) storage tanks,the runaway re-action of DTBP was simulated by accelerating rate calorimeter(ARC).The results indicated that under adiabatic conditions the initial exothermic temperature was 102.6 ℃,the maximum self-heating rate was 3.095×107 ℃·min-1,the maximum self-heating temperature was 375.9 ℃,and the pressure produced by unit mass was 4.512 MPa·g-1.Judged by ARC test,the emergency relief system for DTBP was a hybrid system.Based on Design Institute for Emergency Relief System(DIERS) method,the releasing mass flow rate W was determined by Leung methods,and the mass velocity G was calculated by two modified Omega methods.The two relief sizes calculated by monograph Omega method and arithmetic Omega method are close,with only 0.63% relative error.The monograph Omega method is more convenient to apply.
The order to design the relief system size of di-tert-butyl peroxide (DTBP) storage tanks, the runaway re-action of DTBP was simulated by accelerating rate calorimeter (ARC). The results indicated that under adiabatic conditions the initial exothermic temperature was 102.6 ° C, the maximum self-heating rate was 3.095 × 107 ° C · min-1, the maximum self-heating temperature was 375.9 ° C, and the pressure produced by unit mass was 4.512 MPa · g-1.Judged by ARC test, the emergency relief system for DTBP was a hybrid system. Based on Design Institute for Emergency Relief System (DIERS) method, the releasing mass flow rate W was determined by Leung methods, and the mass velocity G was calculated by two modified Omega methods. two relief sizes calculated by monograph Omega method and arithmetic Omega method are close, with only 0.63% relative error. The monograph Omega method is more convenient to apply.