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Clapeyron v0.6.19

Diff since v0.6.18

v0.6.19

New Features

  • Activity models: support for second-order Michelsen TP flash. in VLE and LLE equilibria
  • Activity models: support for tpd in VLE and LLE equilibria
  • Activity models: new intrinsic: lnγ_impl!(out,model,p,T,z) that allows evaluation of activity coefficients without allocations.
  • Activity model performance improvements due to caching.
  • New model: EmpiricPseudoPure: a Clapeyron implementation of CoolProp's pseudo pure models.
  • New method: RRQXFlash for qp_flash and qt_flash.
  • Clapeyron.tpd: added ideal gas testing composition.

Bug fixes

  • Convergence failure in Michelsen TP flash when equilibria = :unkwown and LLE was detected.
  • Fixes on MultiphaseTPFlash

Merged pull requests: - Optimize michelsen tpflash (#479) (@abcdvvvv) - Multiphase TP‑flash: fix empty‑TPD crash, handle K≈1 degeneracy, robust… (#482) (@abcdvvvv) - Python compatibility (#485) (@se-schmitt) - Enhance the performance of dew and bubble_temperature() (#487) (@abcdvvvv) - Pseudo-Pure CoolProp models (#489) (@longemen3000)

Closed issues: - qp_flash at dew point (#390) - tp_flash returned incorrect phase results (#465) - Promotion issue in xy_flash (#475) - MultiPhaseTPFlash throws ArgumentError: reducing over an empty collection is not allowed (#478) - FlashResults promotion issue (#480) - qp_flash_impl AD tracing (#490)

Source: README.md, updated 2025-11-15