green transport

Green Transport

• Why Transportation.• Sustainable transport• Compressed-air vehicle• The integrated solution• Questions.

Green Transport

• Why Transportation• Sustainable transport• Compressed-air vehicle• The integrated solution• Questions.

Why Transportation.Sustainable TransportCompressed-air vehicleThe integrated solution.Questions.

• Transportation is second largest contributor to greenhouse gas pollution in U.S.

• Transportation share is projected to rise to 36% by 2020.

• Light Duty Vehicles and trucks are the largest contributors to green house gas pollution

Source: U.S. Department of Transportation. Report to Congress. 2010


• 160% increase in average mils per vehicle• Over 5 times increase in number of

vehicles on the road.

ACCB and annual Energy Review 2006

Green Transport



• It includes road vehicle , railways, waterways, canals, pipelines, and terminals.

• It measures transportation system effectiveness, efficiency and environmental impacts.

• Traditional transport planning aims to improve mobility, especially for vehicle, and may fail to adequately consider environmental impact.


Green Vehicles:•Currently 95% of transport energy comes from petroleum.•Green vehicle intends to have less environmental impact than equivalent standard vehicle.•Electric vehicle, Hybrid vehicle, Natural gas vehicle, Biofuels vehicle, Compressed air vehicle are samples of Green vehicle.

IPCC fourth assessment reports: Mitigation of Climate change, Chapter5, Transport and it’s infrastructure. 2009


• Electrical vehicle needs long time for recharging and large size of batteries to run for long distance. (Hundai electrical bus run to 52miles -84Km- in 30min. charge.)

• Battery manufacturing has a lot of objections from the environmentalists point of view.

• All the biofuel vehicle mixing the biofuel with petroleum products (diesel, natural-gas,..) for better performance.

• Scientists express concerns about land-use change in response to greater demand for biofuel and the subsequent carbon emissions.

Green Transport



• Powered by motors driven by compressed air.

• Use the expansion of compressed air, in a similar manner to the expansion of steam in steam-engine.

• Gases may use to increase energy density, and performance.


• Compressed-air car is emission-free at the exhaust.

• By using clean source of electricity, the total impact will be environmental.

• Researches are running now on the MultiCATs transporter (car pooling).


Disadvantages:

•It will be considered as clean car, only if the electricity used for the compressor, generated from sustainable source.•The distance that an air car covers –without refueling- is crucial. (less than 100miles will be fine)•Cars lightweight construction might make it difficult for them to pass the stringent American Safety Requirements, whereas it’s essential for the travel distance needs.

Green Transport


Why Transportation.Sustainable TransportCompressed-air vehicleThe integrated solution Questions.

Which vehicle should use Compressed-air engine?

•Should be worked for short travel distance.•Should have stops within it’s trip for refueling.•Do not require high speed, because high speed consume too much air, which enlarge the tank sizes.


Sample of vehicle might be used:

•Passenger bus at airport property.

•Public buses.

•Garbage collector vans.

•Taxis

** Bus stops in this proposal, would work as intermediate fuel station for these vehicle.


Sustainable source of power for refuel points (Bus stops):

1- Solar photo-voltaic panel:Advantages:

*Renewable and sustainable resource.

* Solar Cells are totally silent.* Require very little maintenance.*Manufacturers have 20-year

warranties.

Disadvantages:* Solar panels are expensive to buy*Storage system usually include

batteries.


Sustainable source of power for refuel points (Bus stops):

2- Stirling engine:•A Stirling engine is a heat engine operating by cyclic compression and expansion of air, other gas, or liquid.•Its efficient, quiet operation, and it can use almost any heat source (such as solar).

**Watch it working on the pathhttp://www.youtube.com/watch?v=vfVv9RVGizY

http://www.youtube.com/watch?v=vfVv9RVGizY


Sample of proposed Bus Stop

Under ground air tank

Air pump for re-fueling

Solar Stirling engine

Photo-voltaic panels

Bus stop, Dubai - UAE

Mamdouh Amin

green transport

Automotive