Releases: andr1976/HydDown
HydDown v0.30.0
Significant update to include modelling single component two-phase systems e.g. CO2, LPG (propane) etc. Wetted surface area heat transfer included (nucleate boiling) and both wetted and unwetted wall temperature are calculated if two-phases are present.
Two-phase can be invoked by specifying a liquid level, this will initiate the inventory at given pressure and saturated temperature. The initial vapour quality is calculated from the liquid level and the vessel geometry,
Added hemispherical vessel
Updated default plotting to include liquid level, wetted wall temperature, and internal / external heat fluxes
HydDown v0.23.0
Release with added vessel geometries such as DIN and ASME F&D in addition to flat-end vessel. A dynamic sizing method for fire relief valve has been added
HydDown v0.20.0
Release including a 1-D transient heat conduction equation for calculating the temperature gradient through the vessel wall. Bi-material are also allowed, effectively enabling low conductivity materials and Type III/IV vessels to be investigated.
HydDown
Hydrogen (or other pure gas phase species) pressure vessel filling and discharge calculations.
All basic functionality for single component gas pressurisation/depressurisation implemented. For steel vessels the results have been validated against experiments from the scientific literature. Rudimentary multicomponent capability.
HydDown
Hydrogen (or other pure gas phase species) pressure vessel filling and discharge calculations.
All basic functionality for single component gas pressurisation/depressurisation implemented. For steel vessels the results have been validated against experiments from the scientific literature. Rudimentary multicomponent capability.
This version is the first to be accompanied by a PyPi release.
HydDown
All basic functionality for single component gas pressurisation/depressurisation implemented. For steel vessels the results have been validated against experiments from the scientific literature.
Alpha
First version working reasonably well with most needed features implemeting. Some work is required to provide meaningful messages to errors in input/yaml. Some convienece features are also lacking such as result arrays stored as pandas dataframe, optimisation/solvers for valve sizing is also lacking. More elaboration on heat transfer correlations is required as well as a transient 1-D heat transfer model to handle other materials than fairly dense metals.
Streamlit app
The first version with basic functionality implemented: testing, input file format, and schema check, calculation class and utility functions. Most calculation methods and combinations are implemeted except fire (variable) external heat load. Some validation pending for filling.
Release for DOI
First release for depressurisation with various methods, including heat transfer etc.