SIMULTANEOUS CALCULATION OF HEAT, MOISTURE, AND AIR TRANSPORT IN A MODULAR SIMULATION ENVIRONMENT

Abstract

A new one-dimensional model for simultaneous heat, moisture, and air transport calculations in a modular simulation environment has been developed. The model supplements the indoor climate and energy model library that is used for building simulation. The model may be used as a single independent model or as a component of a large model system. The humidity by volume is used as a moisture transfer potential, enthalpy is calculated, condensation is taken into account and all equations are solved simultaneously. The models contain only equations and the general modelling language functions at the same time as a source code and a readable document. The model was validated against analytical solutions and an existing program.