v0.0.5 (October, 25, 2018)#

New Features#

  • added new component: motoric cogeneration unit (79a1177). An example is provided here.

  • improved fluid property checks (8adc76c).

  • added bus characteristics for modeling variable efficiencys (e.g. for generator, motor, boiler) (79a1177).

  • isentropic efficiency characteristic for compressor linked to pressure ratio (85d317d).

  • added volumetric flow specification (63db64d).

Documentation#

  • adapted documentation and (example code) in regard of new features.

  • fixed some typos in documentation.

Parameter renaming#

compressor - vigv -> igva (inlet guide vane angle)

simple heat exchanger - t_a -> Tamb (ambient temperature)

solar collector - t_a -> Tamb (ambient temperature)

Testing#

Bug fixes#

  • fixed a bug in the function v_mix_ph (specific volume for gas mixtures) (d487381).

  • fixed compressor derivatives for usage with custom variables (71cae48).

  • adjusted error messages (cccd89c).

  • removed unecessary loop (187505b).

  • fixed attribute handling in subsystem: condenser with subcooler (2c926bb).

Other changes#

  • remodeled the characteristic map for compressors: if not specified, igva is assumed to be 0° (2425a77).

  • redesigned the printouts for component parameters (9465be6, b2c0897, cbbc1a1, 1e55e36, 2e795c2)

  • custom variables are available for (977a5be):
    • turbomachines,

    • vessels,

    • simple heat exchangers (as well as pipes and solar collctors) and

    • cogeneration unit.

Contributors#

  • Francesco Witte

  • Paul Hansen