This is the fifth article in our special series to commemorate a century of innovation in the HVAC&R arts and sciences.
The application of carbon dioxide (CO2) referigeration systems for comfort air cooling reached its highest point in the 1920s. The Depression caused a significant reduction in the number of installations and the advent of R-12 for comfort-cooling systems replaced the use of CO2 as the “safe” refrigerant.
Citation: ASHRAE Journal, vol. 41, no. 4, April 1999
Product Details
- Published:
- 1999
- Number of Pages:
- 6
- File Size:
- 1 file , 2.4 MB
- Product Code(s):
- D-AJ99Apr01
