Wine is sold in glass bottles. The average recycle content in a wine bottle is 38%. The overall recycling rate for wine bottles at end of life is 42%. Take the embodied energy of primary glass to be H...

Wine is sold in glass bottles. The average recycle content in a wine bottle is 38%. The overall recycling rate for wine bottles at end of life is 42%. Take the embodied energy of primary glass to be H_m
= 15 MJ/kg and that for recycled glass to be Hrc = 7 MJ/kg.

(a) What are the material life energies using the recycle fraction method and using the substitution method?

(b) Report instead the material life energy using the recycle fraction method and the potential EoL credit of the glass of the bottle if it were recycled at today’s recycle fraction and energy.