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  • Combined Heat pump - A/C System
    15.09.2014
  • KULI-System

    This simulation model demonstrates how a HVAC system featuring different operating modes (cool down, heat pump mode) can be realized in one simulation model.

    To combine both conditioning modes in one simulation model, it is necessary to split the system into two branches. Therefore the system consists of two condensers and two evaporators.

    Basically there are two ways to select the conditioning mode:

    • By setting one branch containing these HVAC components to an inactive state (locking the path), the conditioning mode can be chosen. This is basically done by reducing the pressure in the branch to zero.
    • Another possibility is to set a very small mass flow through a controlled orifice, which will cause a closed txv.

    The mode itself can be chosen in the Simulation parameter window.

    Usable from release: KULI 9.1-0.01
    Necessary modules: KULI hvac


    KULI File, 256 KB
    Documentation, 995 KB
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