Uncertainty of life cycle climate performance (LCCP) analysis.

Life cycle climate performance (LCCP) is environmental metrics that aim to indicate total environmental impact caused by a refrigeration or heat pump system. It often used to justify the choice of some refrigerant in favor of another when considering its effect on entire environmental impact from a system. Calculation of LCCP relies on a number of inputs that are often uncertain. This work introduces the cumulative uncertainty of LCCP metrics and analyses effect of the uncertainty on the comparative LCCP analyses. The results suggest that the uncertainties of LCCP analysis inputs should not be neglected. Moreover, when the uncertainties are taken into account, it can be speed up the analysis by focusing on refining the uncertainties of the inputs that have the greatest contribution to the uncertainty of the entire LCCP analysis.