Capacity tests

Test h2ss.capacity functions.

References

[1]

Caglayan, D. G., Weber, N., Heinrichs, H. U., Linßen, J., Robinius, M., Kukla, P. A., and Stolten, D. (2020). ‘Technical potential of salt caverns for hydrogen storage in Europe’, International Journal of Hydrogen Energy, 45(11), pp. 6793–6805. https://doi.org/10.1016/j.ijhydene.2019.12.161.

[2]

Portyanikhin, V. (2023). ‘portyanikhin/PyFluids’. Available at: portyanikhin/PyFluids (Accessed: 1 January 2024).

tests.test_capacity.test_cavern_volume()

Test h2ss.capacity.cavern_volume

tests.test_capacity.test_corrected_cavern_volume()

Test h2ss.capacity.corrected_cavern_volume

tests.test_capacity.test_temperature_cavern_mid_point()

Test h2ss.capacity.temperature_cavern_mid_point

tests.test_capacity.test_pressure_operating()

Test h2ss.capacity.pressure_operating

tests.test_capacity.test_density_hydrogen_gas()

Test h2ss.capacity.density_hydrogen_gas

Notes

Use Eqn. (3) of [1] to derive the density and compare it with the density obtained from the h2ss.capacity.density_hydrogen_gas function. The values should be approximately the same (rounded to one decimal place). PyFluids [2] is used to just derive the compressibility factor, \(Z\), for the former. The pyproject.toml configuration file has been set such that the default units are SI units.

\[\rho = \frac{p \, M}{Z \, R \, T}\]

where \(M\) is the molar mass of hydrogen gas [kg mol⁻¹], \(R\) is the universal gas constant [J K⁻¹ mol⁻¹], \(p\) is the pressure [Pa], \(T\) is the temperature [K], and \(\rho\) is the hydrogen gas density [kg m⁻³].

tests.test_capacity.test_mass_hydrogen_working()

Test h2ss.capacity.mass_hydrogen_working

tests.test_capacity.test_energy_storage_capacity()

Test h2ss.capacity.energy_storage_capacity