JAUE2024-042: Analyzing Information on Cooling Systems Using IFC Data

Abstract

According to the future vision and roadmap for BIM utilization presented by the Ministry of Land, Infrastructure, Transport, and Tourism (MLIT) in March 2023, Industry Foundation Classes (IFC) data will be used in building confirmation and inspection by 2028. IFC encompasses data for building projects across various domains, including architecture, structural engineering, heating, ventilation, and air-conditioning (HVAC), construction management, and more. In this study, we focus on IFC data for cooling systems within the HVAC domain, exported using BIM software Revit 2025. Firstly, the customization of the IFC setup is introduced. Then, we illustrate the structure of IFC data for cold water systems and cooling water systems according to the IFC4 specification. Additionally, IFC definitions for pipes, chillers, cooling towers, and other equipment are exemplified, as well as the IFC property sets related to flow rate and electrical power. The study also introduces the IFC definition of distribution ports connected with flow elements. Finally, we explain the method to analyze IFC system data for cooling systems, which will be helpful for MEP design.