[Ducati] Re: 2 into 1 exhaust for 900SS? (Kevin going to dark side)

[MS&F]

Shows what being out of the industry for 15 years does, although I must 
admit that I had forgotten the meduim speed diesels.  We are still a 
long way off utilising our fuel to max.  The main problem with using a 
second engine to make use of the wasted heat is that the additional 
weight will probably not justify the energy recovered.  Same problem 
with current fuel cells

ducatisti wrote:
> AFAIK, the most efficient diesels obtain over 50% thermal efficiency 
> (marine applications) and CAT already has machinery engines producing 
> over 40% thermal efficiency (with a target goal of over 50% for future 
> design/production).
>
> As to Ron's question - it is used... in EGR systems, to reduce oxides 
> of nitrogen (NOx) for emissions purposes.
> ;-)
>
> cody
>
> MS&F wrote:
>> A very small proportion.  The most efficiant internal combustion 
>> engines (turbo diesels) only manage to turn about 35% of the 
>> available engery in the fuel into motion. :-(        Maybe we should 
>> have a separate heat engine running off the exhausts that runs the 
>> alternator and an electro magnetic valve system???
>