Table 2 Summary of key literature on nanofuel additives in CI Engines.

From: Combustion analysis of CI engine fuelled with calophyllum inophyllum methyl ester biodiesel and CeO2 nanoparticle additives

Reference

Fuel type

Nanoparticle additive

Combustion stability (COVIMEP​) investigated?

Key focus

Anbarsooz35

Diesel/Biodiesel

Various

No

Review of performance and emissions.

Hoang40

Diesel/Biodiesel

CeO2

No

Review of CeO2​ effects on performance/emissions.

Chacko and Jeyaseelan46

Karanja/WCO Biodiesel

GO, GNP

No

Combustion (ID, HRR) and emissions.

Mei et al.56

Diesel

CNT, MoO3

No

Combustion (ID, HRR) and emissions.

Sheriff et al.47

Lemon/Orange Peel Biodiesel

MWCNT, CeO2​

No

Combustion (ID, HRR) and emissions.

Gowtham and Prakash58

CIMEBD

GO

No

Regulated and unregulated emissions.

Devarajan et al.61

Palm Stearin Biodiesel

AgO (5, 10, 20 nm)

No

Effect of NP size on pressure and HRR.

Present study

CIMEBD

CeO2; (20, 40, 60, 80 nm)

Yes

Effect of NP size on combustion stability (COVIMEP​).