Simulation platform of air conditioning water system based on TRNSYS

Through establishing the hydraulic mathematical model for each part of the central air conditioning water system, setting the related parameters of the subroutine TYPE and writing logic program, builds the component modules of air conditioning water system, and adds them to the module library of the TRNSYS.According to the hydraulic characteristics of the water system, establishes the simulation platform in term of the logical relation of pressure, flow rate and impedance, and covers the shortage that the existing module of the TRNSYS only considers the thermal properties and ignores the hydraulic characteristics. Taking parallel pipeline module and variable frequency pump group module as examples, presents the establishment of TRNSYS module. Based on the water system of the central air conditioning for a complex building, presents the set-up of dynamic simulation platform, and obtains the pressure drop curve of the water system by simulation.