Prediction of Waste Heat Energy Recovery Performance in a Naturally Aspirated Engine Using Artificial Neural Network

Table 2

Details of the instrumentation used in the experiment.

Measured variable	Instrument	Brand	Range	Uncertainty
Air volume flow rate [m^3/min]	Pitot tube anemometer	Extech	0–99,999	±3% rdg
Throttle angle [degree]	Existing throttle sensor	—	—	—
Engine speed [rpm]	Optical tachometer	Compact	100–60,000 rpm	±0.5%
WHRM turbine speed [rpm]	Optical tachometer	Compact	100–60,000 rpm	±0.5%
Voltage [V]	USB multimeter	Pros’Kit	0–600 V	±(0.5% + 4 d)
Current [A]	USB multimeter	Pros’Kit	0–10 A	±(1.2% + 10 d)