|
A cellular air tank has theoretical safety and reliability advantages. Real world complications include the safety and reliability disadvantages of the valves and plumbing. The system design MUST include provisions for dealing with the failure of any component, including the fact that valves can fail fully open, fully closed, or stuck partway.
An efficient air motor for use with a high pressure air system would need both variable displacement and variable expansion ratio. The displacement would need to be variable from near zero for low power output with the air tank fully charged to large enough to get rated power with the air tank at minimum pressure.
The efficient air motor expansion ratio would be 300:1 for an air tank charge to 4500 PSI, and variable down to 8:1 when the air tank is discharged down to 100 PSI.
And the efficient air motor would need to use isothermal expansion, requiring an external source of heat.
And that is a few of the reasons why nobody has succeeded in building a practical air car.
__________________
06 Canyon: The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 33,021 miles 2016-2018 at 35.00 MPG.
22 Maverick: Summer 2022 burned 62.74 gallons in 3145.1 miles for 50.1 MPG. Winter 2023-2024 - 2416.7 miles, 58.66 gallons for 41 MPG.
|