The interest in hydrogen-based green energy is increasing worldwide, and the same is true for hydrogenpowered vehicles. Among the possible solutions to store hydrogen in such vehicles, cryogenic tanks equipped with multi-layer insulation (MLI) are the most promising to increase the amount of energy stored per unit volume. However, MLI is affected by severe deterioration when exposed to an external source of heat such as a fire following a car accident, leaving the tank unprotected and leading to failure in a relatively short time. In this work, a one-dimensional model to evaluate MLI thermal degradation when a liquid hydrogen tank is exposed to fire is presented. The relevance of taking MLI degradation into account when simulating the pressure increase due to external fire exposure is here demonstrated through the analysis of several case studies. The results show that MLI systems performance depletes within a few minutes of exposure to hydrocarbon poolfire.

Camplese Davide, Chianese Carmela, Scarponi Giordano Emrys, Eberwein Robert, Otremba Frank, Cozzani Valerio (2023). Analysis of High Temperature Degradation of Multi-layer Insulation (MLI) Systems for Liquid Hydrogen Storage Tanks. CHEMICAL ENGINEERING TRANSACTIONS, 99, 415-420 [10.3303/CET2399070].

Analysis of High Temperature Degradation of Multi-layer Insulation (MLI) Systems for Liquid Hydrogen Storage Tanks

Camplese Davide
;
Chianese Carmela;Scarponi Giordano Emrys;Cozzani Valerio
2023

Abstract

The interest in hydrogen-based green energy is increasing worldwide, and the same is true for hydrogenpowered vehicles. Among the possible solutions to store hydrogen in such vehicles, cryogenic tanks equipped with multi-layer insulation (MLI) are the most promising to increase the amount of energy stored per unit volume. However, MLI is affected by severe deterioration when exposed to an external source of heat such as a fire following a car accident, leaving the tank unprotected and leading to failure in a relatively short time. In this work, a one-dimensional model to evaluate MLI thermal degradation when a liquid hydrogen tank is exposed to fire is presented. The relevance of taking MLI degradation into account when simulating the pressure increase due to external fire exposure is here demonstrated through the analysis of several case studies. The results show that MLI systems performance depletes within a few minutes of exposure to hydrocarbon poolfire.
2023
Camplese Davide, Chianese Carmela, Scarponi Giordano Emrys, Eberwein Robert, Otremba Frank, Cozzani Valerio (2023). Analysis of High Temperature Degradation of Multi-layer Insulation (MLI) Systems for Liquid Hydrogen Storage Tanks. CHEMICAL ENGINEERING TRANSACTIONS, 99, 415-420 [10.3303/CET2399070].
Camplese Davide; Chianese Carmela; Scarponi Giordano Emrys; Eberwein Robert; Otremba Frank; Cozzani Valerio
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/960952
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