*Health and Environment Department, General Motors Research and Development Center, Warren, MI, USA.
Life-Cycle Global Warming Impact of CFCs and CFC-substitutes for Refrigeration
Article first published online: 8 FEB 2008
Journal of Industrial Ecology
Volume 1, Issue 4, pages 71–91, October 1997
How to Cite
Papasavva, S. and Moomaw, W. R. (1997), Life-Cycle Global Warming Impact of CFCs and CFC-substitutes for Refrigeration. Journal of Industrial Ecology, 1: 71–91. doi: 10.1162/jiec.1922.214.171.124
- Issue published online: 8 FEB 2008
- Article first published online: 8 FEB 2008
- global warming;
- life-cycle impact assessment;
- materials accounting;
- substance flow analysis
We have investigated the global warming potential (GWP) of CFC-I I, CFC-12, and their replacements, HCFC-I23 and HFC-I34a, based on a life-cycle methodology for refrigeration. We have extended the definition of the total equivalent warming impact (TEWI), which considers the GWP (direct) and GWP (indirect) warming potential of each chemical compound, by adding the GWP (chemical production), GWP (recycling), and GWP (atmospheric breakdown products) for each chemical. We call the new index “life-cycle warming impact” (LCWI).We find that the GWP (chemical production) contributes by no more than 1% to LCWI, and that the GWP (indirect) is highly dependent on refrigerator eficiency and the fuel mix of the electricity source used to operate the appliance. The GWP (atmospheric breakdown products) may also have a significant impact on LCWI.