Comments on: Renewable Energy in HEV http://blog.bsodmike.com/2009/12/22/renewable-energy-in-hev/ Caution: May contain nuts... Sun, 29 Aug 2010 15:30:27 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: bsodmike http://blog.bsodmike.com/2009/12/22/renewable-energy-in-hev/comment-page-1/#comment-232 bsodmike Mon, 25 Jan 2010 04:16:47 +0000 http://blog.bsodmike.com/?p=84#comment-232 Hey Richard :) You're quite right. I did mention this above, "My idea requires the use of a turbocharger, as the diesel engine in HEVs tends to solely function as a means for driving the electric traction motors..."; however, what I was trying to mention was the possibility of further using the exhaust gasses to drive a secondary generator. Of course, the exhaust gasses may not have sufficient energy to drive the secondary generator once they have passed through the initial turbine stage. Your point about the work done by the turbo decreasing engine power though is something I hadn't considered though. Hey Richard :)

You're quite right. I did mention this above, "My idea requires the use of a turbocharger, as the diesel engine in HEVs tends to solely function as a means for driving the electric traction motors…"; however, what I was trying to mention was the possibility of further using the exhaust gasses to drive a secondary generator.

Of course, the exhaust gasses may not have sufficient energy to drive the secondary generator once they have passed through the initial turbine stage. Your point about the work done by the turbo decreasing engine power though is something I hadn't considered though.

]]> By: richard scott http://blog.bsodmike.com/2009/12/22/renewable-energy-in-hev/comment-page-1/#comment-231 richard scott Mon, 25 Jan 2010 02:25:13 +0000 http://blog.bsodmike.com/?p=84#comment-231 nice idea but the work done by the turbo will decreace the power of the engine, therefore increase fuel consumed, a much easier way of increasing fuel economy is to have the turbo diesel generator running solely on a generator like a train, then electric motors to power the wheels. also train engines can be turbocharged, this is a small ship turbo <a href="http://www.maritime.com.pl/industry/strony/gfx/abbturbo1.gif" target="_blank">http://www.maritime.com.pl/industry/strony/gfx/ab...</a> ment for a 25Mw engine. the main reason turbos are used is when you are at a constant speed ie not pressing the gas pedal the turbo takes next to no power from the engine, the turbo only uses power when it is spooling up, where as a supercharger has a constant power loss related to the engine rpm, a supercharger for a jag can use 50hp at max rpm to power it. nice idea but the work done by the turbo will decreace the power of the engine, therefore increase fuel consumed, a much easier way of increasing fuel economy is to have the turbo diesel generator running solely on a generator like a train, then electric motors to power the wheels. also train engines can be turbocharged, this is a small ship turbo http://www.maritime.com.pl/industry/strony/gfx/ab... ment for a 25Mw engine. the main reason turbos are used is when you are at a constant speed ie not pressing the gas pedal the turbo takes next to no power from the engine, the turbo only uses power when it is spooling up, where as a supercharger has a constant power loss related to the engine rpm, a supercharger for a jag can use 50hp at max rpm to power it.

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