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FWIU e.g. delivery vans and garbage trucks stop and start all day, with multiple $2k/job brake pad repairs per year. Is there a garbage truck sim too? /? "hydr
by westurner 3y ago
FWIU e.g. delivery vans and garbage trucks stop and start all day, with multiple $2k/job brake pad repairs per year. Is there a garbage truck sim too?
/? "hydraulic regenerative braking" system https://www.google.com/search?q=%22hydraulic+regenerative+braking%22+system https://www.google.com/search?q=%22hydraulic+regenerative+br...
"Garbage Trucks Go Green" (2010) https://www.technologyreview.com/2010/08/03/201733/garbage-trucks-go-green/ https://www.technologyreview.com/2010/08/03/201733/garbage-t... :
> A new kind of hybrid technology for heavy-duty vehicles uses hydraulics, rather than batteries, to store energy. Trucks using the system promise to be 30 percent more fuel-efficient than conventional vehicles.
"Ann Arbor Saves with Hydraulic Hybrid Recycling Trucks" (2011) https://www.government-fleet.com/79387/ann-arbor-saves-with-hydraulic-hybrid-recycling-trucks https://www.government-fleet.com/79387/ann-arbor-saves-with-... :
> This regeneration of braking energy improves fuel economy by 15 percent, saving the City almost 1,800 gallons of fuel each year.
> The hydraulic regenerative braking system also led to savings in brake maintenance by increasing the life span of brakes. Normally, brakes are replaced several times per year, but in the year that Ann Arbor has been using the trucks, the brakes have not had to be replaced. This resulted in an annual savings of almost $12,000, [for four such 2010 vehicles] the Clean Energy Coalition stated.
Marginal gross annual savings per recycling truck:
(1800x + 12000y) / 4 = 450x + 3000y
Potential savings given an even more efficient hydraulic regenerative braking system in a recycling truck scenario:
x_before * (1-0.15) = 1800
x_before * (1-0.314) = x_314