Steam+cars


 * ~ ====Steam engines====

What are they and why don't we use it?
|| ===="Some of the reasons we don't use steam engine cars anymore, might be due to things such as if there were ever to be a traffic accident, both the cars would explode, and there mighht be a chain reaction, because cars behind might just catch fire.====
 * ====**Why don't we use steam engines?**====

-Isabel
||

-Isabel
web pages: http://en.wikipedia.org/wiki/Alternative_propulsion http://en.wikipedia.org/wiki/Steam_engine http://en.wikipedia.org/wiki/European_emission_standards http://www.hse.gov.uk/pubns/indg286.pdf http://en.wikipedia.org/wiki/Exhaust_gas http://en.wikipedia.org/wiki/Stirling_engine


 * ~ ==== Maximum speed of a steam car ==== ||
 * ===="Modern internal combustion engines are way more popular than steam engines, but this does not mean steam engines are slow. Every year there British steam car challenge is arranged and the steam cars here are capable of outrunning many modern gasoline cars. The current world record is held by Don Wales he reached 148.308 mph (238.679 km/h) in 2009. The reason steam cars are a bit slower than internal combustion engines is because external combustion is not as effective as external combustion engines because the fuel is not used as effectively and the engine is heavier."====

This is all information we gathered and put onto the discussion board on itslearning
(This information is copyrighted and belongs to year 8 on Arendal Interntional School)

([]) [] [|www.fluther.com/97272/if-the-steam-engine-is-more-efficientwhy-do-we-not-have/] [] [] [] [] || So out of what we've figured out, an engine that runs on gas is better and is more safe, than a steam engine, though it is hard to say which one exactly is better for the environment. Though its hard to say exactly which one lets out less Co2 emissions. Though we did find some charts from the european emission standard, on wikipedia.
 * Links:**
 * []**

(http://en.wikipedia.org/wiki/European_emission_standards)
 * European emission standards for [|passenger cars] (Category M*), g/km**
 * ~ Tier ||~ Date ||~ [|CO] ||~ [|THC] ||~ [|NMHC] ||~ [|NOx] ||~ HC+NOx ||~ [|PM] ||~ [|P]***** ||
 * Diesel ||
 * Euro 1† || July 1992 || 2.72 (3.16) || - || - || - || 0.97 (1.13) || 0.14 (0.18) || - ||
 * Euro 2 || January 1996 || 1.0 || - || - || - || 0.7 || 0.08 || - ||
 * Euro 3 || January 2000 || 0.64 || - || - || 0.50 || 0.56 || 0.05 || - ||
 * Euro 4 || January 2005 || 0.50 || - || - || 0.25 || 0.30 || 0.025 || - ||
 * Euro 5 || September 2009 || 0.500 || - || - || 0.180 || 0.230 || 0.005 || - ||
 * Euro 6 (future) || September 2014 || 0.500 || - || - || 0.080 || 0.170 || 0.0025 || - ||
 * Petrol (Gasoline) ||
 * Euro 1† || July 1992 || 2.72 (3.16) || - || - || - || 0.97 (1.13) || - || - ||
 * Euro 2 || January 1996 || 2.2 || - || - || - || 0.5 || - || - ||
 * Euro 3 || January 2000 || 2.3 || 0.20 || - || 0.15 || - || - || - ||
 * Euro 4 || January 2005 || 1.0 || 0.10 || - || 0.08 || - || - || - ||
 * Euro 5 || September 2009 || 1.000 || 0.100 || 0.068 || 0.060 || - || 0.005 || - ||
 * Euro 6 (future) || September 2014 || 1.000 || 0.100 || 0.068 || 0.060 || - || 0.005** ||  ||