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  • Users: svizoman
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  1. svizoman

    diesel exhaust heat recovery

    Besides known EGR principle to lower NOx and partly to heat up engine quicker will there be any benefit to warm air intake throuh exhaust heat exchanger. By ideal gas law higher than compression ratio higher the efficiency of the engine (of course CR engines in practise has retard injection to...
  2. svizoman

    transmision in big wehicles like mining dump truck

    They use either planetary gears with torque converter like cars do or diesel electric like diesel lcomotives. None uses hydrostatic transmision like excavator does with variabile displacement axial piston pump and fixed displacement axial piston motor. if we look overall transmision efficiency...
  3. svizoman

    Nox and PM regulation for residential heating

    I don't know that any such regulation exist especialy for wood and oil heating, rather than anual chimney cleaning. Although burning wood is accepted as ecologicaly, fact is that burning wood in a stove or fireplace produce large amount of PM, especialy when wood is not perfectly dry and...
  4. svizoman

    emissions from turboa fan engine

    I don't realy know what causes NOx and PM formation they say that diesel engines produce those since there is excess air and high burning temperature but I know that ICE burning process is not continouse like it is in a turbofan engine where oil is conntinously burned in a burner. Does PM and...
  5. svizoman

    compression and thermal efficiency in ICE

    I was watching Mazda's skyactive diesel tecnology promotional video. They claim that by lowering compression ratio to 14:1 they lowered emissions and also improved fuel efficiency. In regular diesels injection begins when piston is at round 35°TDC but with skyactive D injection starts at 0°...

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