Seminar 80 -- System Analysis and Modeling of Variable Refrigerant Flow Systems

This product is a zip file that contains files that consist of PowerPoint slides synchronized with the audio-recording of the speaker, PDF files of the slides, and audio only (mp3 format) as noted.

Variable refrigerant flow (VRF) systems have gained a great attention and popularity in the US recent years. As building designs get sophisticated whether it was due to code and standard or design intention, a deeper understanding of system capability and limitation becomes a key to adopt and integrate VRF systems into advanced energy efficiency building designs. This seminar provides insight into system analysis and modeling techniques for different VRF system configurations. It also discusses performance evaluation of a VRF system in a laboratory environment and modeling techniques with advanced building designs, e.g., net-zero energy buildings.

1. Performance Analysis and Model Calibration of Air-Source VRF Systems
   Piljae Im, Ph.D., Member, Oak Ridge National Laboratory, Oak Ridge, TN
2. System Design and Modeling Methods for Water-Source Heat Recovery VRF Systems
   Heejin Cho, Ph.D., Member, Mississippi State University, Mississippi State, MS
3. Performance Evaluation and Modeling of Net-Zero Energy Building Design with VRF Systems
   Dongsu Kim, Ph.D., Associate Member, Hanbat National University, Daejeon, Korea, Republic of (South)