Table 3 Accuracy and uncertainties.

From: Emission and performance analysis of diesel engine running with CeO2 nanoparticle additive blended into castor oil biodiesel as a substitute fuel

Measured parameters

Instrument

Measuring range

Accuracy%

Ūmax (%)

NOx

Kane AUTO plus gas analyzer

0–5000 ppm

± 12 PPM

17.5

CO

CT159.02 Exhaust gas analyzer

0–10% vol

± 0.06% vol

8.7

HC

 

0–2500 ppm

± 3 ppm

6.2

Speed

CT 110.20

0–5000 rpm

± 12 rpm

0.51

Brake Power

CT 110.20

0–7.5 kW

± 0.1

2.72

Brake Torque

CT 110.20

− 50–50 Nm

± 0.2

1.96

TFC

CT 110.20

50 cm3/min

± 0.05

3.04

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