Building Life-Cycle Analysis with the GREET Building Module: Methodology, Data, and Case Studies

Abstract

Impact of choices of co-product handling methods on embodied GHG emissions of fumed silica, produced via the flame hydrolysis process that co-produces a significant amount of hydrochloric acid.

Energy Analysis of Low Carbon Hydrogen from Methane and End Use Implications

“…Figure 5 offers an energy comparison in a somewhat different form than the energy efficiency comparisons offered up to now. The GREET program 30 provides the energy use Refueling infrastructure for FCEVs can rely on a combination of energy paths, some of which can easily make use of existing infrastructure. Figure 6 offers a simplified view of gasoline distribution 31 illustrating gasoline moving from refineries through pipelines to large storage terminals near consuming areas serviced by trucks delivering the fuel to gasoline stations.…”

“…Figure offers an energy comparison in a somewhat different form than the energy efficiency comparisons offered up to now. The GREET program provides the energy use estimates shown in Figure . Well-to-pump (WTP) energy use provided by this program refers to the energy required to deliver energy from its source (a well for crude oil, electrolysis-based gaseous hydrogen, electricity) to the sales point (pump for gasoline, diesel, or gaseous hydrogen or a battery charger for electricity).…”

“…In addition, The Academies of Medicine, Engineering, and Science in Texas (TAMEST) published a report that estimated the number of trucks required for hauling equipment, materials, and fluids for Barnett shale development wells at 988 per well. If on average each loaded truck travels 500 miles with maximum allowable load in Texas giving a load factor of 2.3, and using 1000 total trucks, and multiplying by the GREET program estimate of 23. 5 MJ/mi for heavy duty trucks using diesel fuel gives a total of ∼27 MMscf (million standard cubic feet) equivalent energy use. With production from a typical Barnett shale gas well at ∼5 Bcf (billion cubic feet), the energy required to power drilling, stimulation, and production operations for shale gas represents a negligible fraction of the energy content in the produced gas.…”