Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question
2

Transcritical compressor coefficients

asked 2015-03-31 13:53:43 -0500

updated 2015-11-12 15:33:05 -0500

Has anyone been successful obtaining and using manufacturer compressor curves for transcritical CO2 refrigeration systems? I have attempted to download the transcritical/subcritical compressor curves from manufacturer and apply in model; however, the energy use is all over the place (extremely negative OR extremely positive).

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
3

answered 2015-03-31 18:03:49 -0500

EnergyPlus doesn't follow the ARI Standard 540 exactly and requires the user to tweak the order of the coefficients for compressor performance curves. Also make sure your coefficients are in the right units where applicable.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Careers

Question Tools

1 follower

Stats

Asked: 2015-03-31 13:53:43 -0500

Seen: 189 times

Last updated: Mar 31 '15