R03 — Carbon Dioxide Refrigeration Systems (SI)

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 30°F [-1°C], or 969.6 psia at 80°F [6.7 MPa at 26.7°C]) 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: 978-1-936504-72-5 (for SI versions of chapters)
ISSN: 1930-7178 (for SI versions of chapters)

Citation: 2014 ASHRAE Handbook — Refrigeration: Chapter 3, Carbon Dioxide Refrigeration Systems (SI)

Product Details

Published:

2014

ISBN(s):

9781936504725

Number of Pages:

12

File Size:

1 file , 610 KB

Product Code(s):

D-R032014SI