The downside of low-rpm diesel generators is weight. Every time you half the rpm, you need to roughly double the engine size to get the same power out. An 800rpm generator would need an engine more than 4x what's in a normal 3600 rpm generator.
For example, a 650 rpm Lister Diesel engine/generator that creates 2500W can weight over a 1000 lbs. They are great for backup or off-grid situations where weight isn't a concern.
Brings to mind "turbocharging w/aftercooler" might be a nice project for the high rpm units then drop rpm's or has someone done this at an affordable price yet. The low rpm Lister Petter rocks for output and low, low, low fuel consumption. I've been looking at some military surplus 6.5 hp diesel Listers lately again they are high rpm.
If using vehicles diesel engine as as power unit surely a nice 3.5k watt head could be driven w/proper pulley ratio @ idle, thinking it maybe cost effective too.
If using vehicles diesel engine as as power unit surely a nice 3.5k watt head could be driven w/proper pulley ratio @ idle, thinking it maybe cost effective too.
As diesel cost is rising high. i would prefer a chg conversion for gen. Cause its cheap and echo friendly. its also reduce sound pollution. gas is better then Diesel. what do you say about it?