| Leakage of combustible liquids into the insulation of pipelines and process equipment can be extremely hazardous.;An improved oven test system was successfully designed and constructed for the experimental comparison of the two methods.;The comparison experiments were conducted on an insulation material, calcium silicate, laden with a combustible solvent, N-Methyldiethanolamine (MDEA). The weight of the MDEA was 150% of the weight of the insulation material. The two analysis methods gave different estimated values of the activation energy of the sample. The acquired data of solvent content during each test clearly indicated that the assumption of neglecting solvent consumption for Frank-Kamenetskii's approach and for the "Crossing Point" method might not apply for thermal runaway within insulation materials laden with solvents. A more detailed investigation of the effect of evaporation and consumption of a solvent in a porous insulation material on thermal runaway occurring within the insulation should be conducted in the future. (Abstract shortened by UMI.). |
