Exhaust Gas Recirculation Setup
A general cross sectional view of exhaust gas
recirculation technique is shown in fig. 1. Figure 2
shows the schematic diagram of experimental setup for
exhaust gas recirculation technique. From the figure, it
is clear that a part of exhaust gas is controlled by control
valve 1 and re-circulated then mixed at the (A)
indicating portion with the incoming fresh air and go to
the intake for combustion. Percentage of EGR is
controlled by the control valve 1. In the experimental Figure 2 also shows the schematic of orifice meter.
Every orifice meters connected with U tube manometer
for the flow measurement. In the setup the thermometer
is used to determine the mixing temperature. The U tube
manometer adjusts with the centimetre scale from
which we can measure the pressure difference for the
particular flow. From the pressure difference, the flow
rate is calculated.