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

Expectations are at an all-time high for energy models to match the mechanical design exactly. However, many energy modeling programs do not explicitly model Variable Refrigerant Flow (VRF) systems. This seminar presents methods that utilize controlled laboratory data in energy simulation software with the goal of improving existing and future VRF energy models. Techniques are presented for modeling VRF systems using eQUEST which is based on the DOE-2.2 modeling engine. Finally, the differences in results among three energy modeling programs based on an example building are explored.

16-1 Data for Publicly Available VRF Systems
Ronald Domitrovic, Ph.D., Electric Power Research Institute
This product contains: Recorded Presentation, Audio (mp3), Slides (pdf)

16-2 Modeling VRF Systems Using eQUEST
Jaeyoon Koh, Ph.D., LG Electronics U.S.A., Inc.
This product contains: Recorded Presentation, Audio (mp3), Slides (pdf)

16-3 Interpreting the Variations In Results When Modeling VRF Systems
Pam Androff, Mitsubishi Electric
This product contains: Recorded Presentation, Audio (mp3), Slides (pdf)

Citation: ASHRAE Seminar Recording, 2012 Annual Conference, San Antonio, TX