Full Description

Carbon dioxide (R-744) is one of the naturally occurring compounds collectively known as natural refrigerants. It is nonflammable and nontoxic, with no known carcinogenic, mutagenic, or other toxic effects, and no dangerous products of combustion. Using carbon dioxide in refrigerating systems can be considered a form of carbon capture, with a potential beneficial effect on climate change. It has no adverse local environmental effects. In recent years, CO₂ has once again become a refrigerant of great interest. However, high-pressure CO₂ systems (e.g., 490.8 psia [3.4 MPa] at a saturation temperature of 30F [-1C], or 969.6 psia at 80F [6.7 MPa at 26.7C]) present some challenges for containment and safety.

Applications
System Design
System Safety
Piping
Heat Exchangers and Vessels
Compressors for CO₂ Refrigeration Systems
Lubricants
Evaporators
Defrost
Installation, Start-up, and Commissioning

ISBN: 978-1-936504-71-8 (for I-P versions of chapters)
ISSN: 1930-7217 (for I-P versions of chapters)

Citation: 2014 ASHRAE Handbook -- Refrigeration: Chapter 3, Carbon Dioxide Refrigeration Systems (IP)

Product Details

Published: 2014 ISBN(s): 9781936504718 Number of Pages: 12File Size: 1 file , 600 KB Product Code(s): D-R032014IP