If steam engine cycles were implemented would the average Joe refill water every day?

[RustyLugNut]

Originally Posted by P-hack

Yes, but the turbine in a turbo isn't a peltier junction or a stirling engine. Preserving the exhaust heat is basic PV=NRT stuff, decrease T and P goes down. The IC is a gas generator, and waste heat is entropy's way of saying screw y'all (unless it is cold outside, then maybe you have a use for it).

What is the point of your discussion?

Lost heat before the turbo results in less pressure which results in less mass moved through the turbine.

[P-hack]

Point? I dunno, you tell me.

Anyway I think it is worth distinguishing between gas and diesels too. Turbo's seem to be an efficiency penalty on gas engines, while an efficiency boost on diesels.

lower peak bsfc for spark normally aspirated (page 874, fig 15-38)
lower peak bsfc for diesel turbo (page 876, fig 15-40) (plus much better power/weight at improved bsfc)


http://www.rmcet.com/lib/E-Books/Mec...ndamentals.pdf

[RustyLugNut]

Originally Posted by P-hack

Point? I dunno, you tell me.

Anyway I think it is worth distinguishing between gas and diesels too. Turbo's seem to be an efficiency penalty on gas engines, while an efficiency boost on diesels.

lower peak bsfc for spark normally aspirated (page 874, fig 15-38)
lower peak bsfc for diesel turbo (page 876, fig 15-40) (plus much better power/weight at improved bsfc)


http://www.rmcet.com/lib/E-Books/Mec...ndamentals.pdf

. . . which was extended to the idea of a partial steam implementation in the exhaust driven turbo charger.

You are now extending the discussion to another area. Maybe a new thread is in order.

But, your reference is interesting in that many people assume that the increased efficiency gained by a diesel with a turbo charger applied can also be found by applying a turbo charger to a gasoline engine ignoring the differences in combustion operation. That is not the case.

Thank you for the link by the way. Heywood is a classic.