[Phys-L] various vehicle efficiencies and unintended consequence(s)

[bernard cleyet <bernard@cleyet.org>]

Corn is very poorly efficient, besides using much needed water, polluting, and displacing food.  


The numbers:  

at the vehicle:  

electric  60%, ice 30%

solar conversion:  

corn 1%!,  solar panel 20%  

Carnot engines (nat. gas, coal) ~ 30%.  W/combined cycle . ~ 60%  

https://en.wikipedia.org/wiki/Combined_cycle_power_plant <https://en.wikipedia.org/wiki/Combined_cycle_power_plant>  


https://thebulletin.org/2021/02/ethanols-clean-promise-has-only-led-to-dirtier-air/?utm_source=Newsletter&utm_medium=Email&utm_campaign=MondayNewsletter02222021&utm_content=ClimateChange_Ethanol_02192021 <https://thebulletin.org/2021/02/ethanols-clean-promise-has-only-led-to-dirtier-air/?utm_source=Newsletter&utm_medium=Email&utm_campaign=MondayNewsletter02222021&utm_content=ClimateChange_Ethanol_02192021>  


bc