Currently hydrogen distribution by pipeline is very limited worldwide and it is quite completely confined into industrial plants. One aspect in safety still to be studied is about accidental outflow conditions of hydrogen from a pipeline caused by a leakage. Into the laboratories of DIMNP (Department of Mechanical, Nuclear and Production Engineering) of University of Pisa (Italy) a pilot plant called HPBT (Hydrogen Pipe Break Test) is currently under study and construction in cooperation with Department of Fire Brigade. The plant will simulate real hydrogen release, its ignition and possible development of combustion. The experimental activity will give technical information about gas diffusivity as function of the position of release, of ignition parameters and the characteristics of the possible shock wave caused by ignition. A new specific normative arranged to prevent fire and applied to hydrogen pipeline will be developed thanks to the obtained information. Experimental data will be useful for comparison with theoretical and computer models.
Experimental studies on hydrogen releases and combustions from pipelines
CARCASSI, MARCO NICOLA MARIO;
2007-01-01
Abstract
Currently hydrogen distribution by pipeline is very limited worldwide and it is quite completely confined into industrial plants. One aspect in safety still to be studied is about accidental outflow conditions of hydrogen from a pipeline caused by a leakage. Into the laboratories of DIMNP (Department of Mechanical, Nuclear and Production Engineering) of University of Pisa (Italy) a pilot plant called HPBT (Hydrogen Pipe Break Test) is currently under study and construction in cooperation with Department of Fire Brigade. The plant will simulate real hydrogen release, its ignition and possible development of combustion. The experimental activity will give technical information about gas diffusivity as function of the position of release, of ignition parameters and the characteristics of the possible shock wave caused by ignition. A new specific normative arranged to prevent fire and applied to hydrogen pipeline will be developed thanks to the obtained information. Experimental data will be useful for comparison with theoretical and computer models.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
