Development Of Virtual Simulation Platform For Ground Source Heat Pump Air Conditioning System In A Low Energy Consumption Building

With the rapid development of global economy,people are pursuing higher performance of air conditioning system.Air conditioning systems today are not only required to provide a good indoor environment but also expected to be environmental and energy-efficient,so it is of great importance to conduct optimization work towards their operation.In addition,considering the complexity and diversity of building air conditioning,the simulation system composed of mathematical models shows better applicability than the uneconomical physical experiments.However,the GUI graphical interface function of the existing simulation software itself is limited,and it can not realize real-time online data viewing and control.If the software is capable of building user interfaces that are similar to real objects and can fetch simulation data in real time,it will greatly make up the shortcomings of current simulation software and bring a great step forward for related simulation technique.The main contents of this paper are as follows:(1)A three-dimensional model of a demonstration building in Jinan is built using the software of Google Sketch Up and a load simulation model of the building is developed based on the TRNSYS simulation software.referring to the typical outdoor meteorological data of Jinan city,and the design indoor temperature of 26? in summer and 18? in winter,the hourly load curve,latent heat load,sensible heat load and cumulative total load of the building are simulated respectively.(2)According to the difference of air conditioning system in winter and summer,the simulation models of underground pipe direct supply system coupled with air handling unitsystem in summer and ground source heat pump system in winter are built in TRNSYS,and different control strategies are put forward and analyzed according to the characteristics of the composite system.Taking winter system as an example,the economy of energy storage during the night and the advantages of energy storage by building body at night are analyzed.(3)Using MATLAB and LabVIEW as bridge software,and applying Visual Studio development platform and C# language,this paper develops a virtual simulation experimental platform for air conditioning system.This platform,achieves the function of data interaction with TRNSYS and presentation of real-time simulation data obtained from TRNSYS,and can also generate data curve,historical data query and basic data query.The virtual simulation experiment platform of air conditioning system developed in this paper has independent intellectual property rights.The three-dimensional model of air conditioning room is built by Revit software,which makes the user interface more humanized.