Derivation and validation of a reference data-based real gas model for hydrogen

卷:48

Article

关键词: EQUATION-OF-STATE;    TRANSITION;    FLOW;   

DOI  :  10.1016/j.ijhydene.2023.03.073

来源: SCIE

【 摘 要 】

Hydrogen plays an important role for the decarbonization of the energy sector. In its gaseous form, it is stored at pressures of up to 1000 bar at which real gas effects become relevant. To capture these effects in numerical simulations, accurate real gas models are required. In this work, new correlation equations for relevant hydrogen properties are developed based on the Reference Fluid Thermodynamic and Transport Properties Database (REFPROP). Within the regarded temperature (150-400 K) and pressure (0.1-1000 bar) range, this approach yields a substantially improved accuracy compared to other databased correlations. Furthermore, the developed equations are validated in a numerical simulation of a critical flow Venturi nozzle. The results are in much better accordance with experimental data compared to a cubic equation of state model. In addition, the simulation is even slightly faster.& COPY; 2023 The Author(s). Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC. This is an open access article under the CC BY license (http://creativecommons.org/ licenses/by/4.0/).

【 授权许可】

Free