63 maintain databases with the gCO2eq. of various mass, spend, and area NAICS categories. Unfortunately, the Carnegie Melon EIO-LCA website eiolca.org was nonfunctional during the entire period of this work. Thankfully, this information was available publicly via the International Aerospace Environmental Group (IAEG) (International Aerospace Environmental Group, 2023). Table 23. Full list of parameters used for the GHG emissions assessment. Unless otherwise noted, source is IAEG, 2023. Parameter GHG emissions kqCO2eq., Source PV area in m2 0.27 / m2 (Liang & You, 2023) Cost of modules 174 / kUSD, “Propulsion units and parts for space vehicles” Total Prop Needed for Starship (kg) * Prop cost for Starship ($/kg) * Total Starship launches 1,290 /kUSD, Basic organic chemicals LOX is ~$0.16/kg and liquid methane ~$0.4/kg, ~3:1 ratio for starship fuel Number of launches * launch vehicle emissions MT 2,683 CO2 + 1.7 NO (*298 for CO2eq.) Launcher metal mass (kg) * Total Starships manufactured 1.7 /kg Steel, unspecified process Structure composite mass (kg) * Total Starships manufactured 495.06/kg Composite-based manufactured products Harness Mass (kg) * Total Starships Manufactured 5.84/kg Copper unspecified process {[Electronics mass (kg) + electronics structure mass (kg)]/0.181437}* 0.064516 * Total Starships Manufactured 606.12 /m2, printed circuit board; printed circuits 0.181437kg = 0.064516 m2 (Silver Circuits, n.d.) Launcher metal mass (kg) * Total Starships manufactured Structure composite mass (kg) * Total servicers manufactured Harness Mass (kg) * Total servicers Manufactured {[Electronics mass (kg) + electronics structure mass (kg)]/0.181437}* 0.064516 * Total servicers Manufactured Spacecraft shielding (kg) 3.75 Glass fibers, high strength, unspecified process (kgCO2eq./kg) Rectenna cost ($) 182.89 /kUSD, Wireless communication equipment; assumed 20% of ground segment cost goes to rectenna
RkJQdWJsaXNoZXIy MTU5NjU0Mg==