Transcritical compressor coefficients

First time here? Check out the Help page!

Question-and-Answer Resource for the Building Energy Modeling Community

Get started with the Help page

asked 10 years ago

jstein@energystudioinc.com

151 ●1 ●3

updated 9 years ago

__AmirRoth__

4446 ●5 ●17 http://bleedinggreenna...

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).

add a comment

1 Answer

Sort by » oldest newest most voted

answered 10 years ago

Lincoln

1521 ●1 ●11 http://www.kw-engineering.com/

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.

link

add a comment

Your Answer

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

Add Answer

Training Workshops

Careers

Question Tools

1 follower

Stats

Asked: 10 years ago

Seen: 237 times

Last updated: Mar 31 '15

Site design and logo: Copyright © 2015 Big Ladder Software LLC. All rights reserved.
The Unmet Hours and Big Ladder names and logos are trademarks of Big Ladder Software LLC.
User contributions licensed under the Creative Commons Attribution Share Alike 3.0 License.

Transcritical compressor coefficients savecancel

1 Answer

Your Answer

Training Workshops

Careers

Question Tools

Stats

Transcritical compressor coefficients