Waste Energy Recovery Analysis
Of A Diesel Engine Exhaust System
Author(s)
J. Merkisz, P. Fuc, P. Lijewski & A. Ziolkowski
Abstract
The problem of waste energy recuperation from the exhaust gas of diesel engines
has been investigated for many years by the manufacturers of passenger vehicles,
heavy-duty vehicles and non-road vehicles. Currently, the energy of the exhaust
gas is manly used for driving turbochargers. However, only part of the energy
contained in the exhaust gas is used for this process. The outstanding energy is
wasted through a heat exchange from the exhaust gas through the exhaust pipe to
ambient air. Many scientific research works are aimed at the recovery of energy
through transferring it from the walls to heat exchangers.
The objective of the authors was the analysis of the temperature distribution
in a diesel engine exhaust system in the aspect of recuperation of energy lost
through heat exchange. To complete the objective, temperature and gas flow
measurements were performed on the exhaust system of a 1.3 dm3 diesel engine
installed on a dynamic test stand. On the test stand a complete engine exhaust
system was installed, identical to that used in a real vehicle. The tests were
carried out in the NEDC homologation test that was reproduced on the
dynamometer through ISAC 400 software made by AVL. For the measurements,
the authors used thermoresistors and a mass flow meter for the exhaust gas mass
flow measurement (part of the SEMTECH DS portable exhaust emissions
analyzer).
Keywords: energy losses, temperature distribution, NEDC test.
Keywords
energy losses, temperature distribution, NEDC test.
Related Book
Other papers in this volume
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