Comparison of fuel characteristics of hydrotreated waste cooking oil with its biodiesel and fossil diesel

Sonthalia, Ankit; Kumar, Naveen

doi:10.1007/s11356-019-07110-w

Cited by 22 publications

(13 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tests were conducted in the surface temperature range of 280 °C–640 °C, since our preliminary study suggests that film boiling occurs in this region for the test fuels. 17 Previous studies 22–24 also show that the ignition probability is the highest in the film boiling region. In this region, the droplet is covered by a vapor film and the heat transfer takes place through both radiation and conduction.…”

Section: Resultsmentioning

confidence: 92%

See 1 more Smart Citation

An experimental investigation on spray, performance and emission of hydrotreated waste cooking oil blends in an agricultural engine

Kumar

Sonthalia

Tomar

et al. 2020

International Journal of Engine Research

Self Cite

View full text Add to dashboard Cite

Biomass-based fuels are gaining importance for operating a compression ignition engine as they can curb greenhouse gases and are a key for addressing the energy security. Hydrotreated oil is considered to be a potential drop-in fuel for the compression ignition engine as its cetane number is higher than fossil diesel. In this study, hydrotreated waste cooking oil and its blends (10%, 20%, 30%, 40% and 50% by volume) with diesel were prepared. The ignition probability of the test fuel samples was found using a hot-plate test setup. The neat hydrotreated fuel has higher ignition probability at a particular temperature than the other test fuels. The Sauter mean diameter of the test fuels was also observed using a Malvern Spraytec test setup. The results reveal that the neat hydrotreated fuel has higher Sauter mean diameter due to its high viscosity. As the percentage of the hydrotreated fuel in the blend decreases, the Sauter mean diameter decreases and diesel has the lowest Sauter mean diameter. The test fuels were also used to run a compression ignition engine. The results reveal a decrease in brake thermal efficiency with the increase in the hydrotreated fuel share in the blend. The heat release for the blends starts earlier than diesel and the peak heat release is also lower than diesel. The HC, CO and smoke emissions for the test blends decreases up to 30% blend. When the percentage of the hydrotreated oil is further increased, the emissions starts increasing. The NO emissions were lower than diesel for all the test samples. As compared to diesel, the maximum reduction in NO (neat), HC (30% blend), CO (30% blend) and smoke emissions (30% blend) is 23.2%, 14.4%, 13.83% and 13.3%, respectively.

show abstract

Section: Resultsmentioning

confidence: 92%

“…The gas chromatography–mass spectrometry (GC-MS) analysis of the fuel was carried out and it contained carbon atoms in the range of C 11 –C 18 with heptadecane as the predominant hydrocarbon. 17 Table 1 compares the property of the hydrotreated oil with fossil diesel.…”

Section: Production Of Hydrotreated Oilmentioning

confidence: 99%

An experimental investigation on spray, performance and emission of hydrotreated waste cooking oil blends in an agricultural engine

Kumar

Sonthalia

Tomar

et al. 2020

International Journal of Engine Research

Self Cite

View full text Add to dashboard Cite

show abstract

“…At full load UHC emissions for Diesel, B20 (EGR 0%), B20 (EGR 5%), B20 (EGR 10%), B20 (EGR 15%) were 64 ppm, 57 ppm, 61 ppm, 66 ppm, 68 ppm respectively. According to the ndings, the percentage of UHC emissions increased as EGR increased (Sonthalia 2019). The lean mixtures are more di cult to ignite and create more UHC due to the heterogeneous nature of the mixture (Chinnasamy et al 2019).…”

Section: Unburned Hydrocarbon Emissionsmentioning

confidence: 99%

Thermal and Chemical Exhaust Gas Recirculation Potential of Punnai Oil Biodiesel Fuelled Diesel Engine For Environmental Sustainability

Bibin¹,

Devan²,

Sheeja³

et al. 2022

Preprint

View full text Add to dashboard Cite

Pollution from diesel engines affects negatively the environment. As a result, there is a worldwide concern about reducing the pollutants emitted by diesel engines. In comparison to diesel fuel, biodiesel combustion produces reduced carbon monoxide (CO2) and unburned hydrocarbon (UHC) emissions, but higher nitrogen oxides (NOx) emissions. The current study is to investigate the thermal and chemical effect of exhaust gas recirculation (EGR) on features of a diesel engine for environmental sustainability. The punnai oil was produced from kernels of punnai seeds and transesterified in two phases using alcohol with the existence of a catalyst. The higher viscosity of punnai oil biodiesel is diluted by mixing it with diesel fuel. Our previous investigation indicated that neat punnai oil biodiesel is a potential fuel; however, the findings showed that the addition of diesel is necessary to obtain acceptable engine performance. In this study, punnai oil biodiesel was mixed at a rate of 20% with diesel (B20) and run in a diesel engine with varied EGR rates under five different engine loads. This combined impact enhanced the maximum heat release rate (HRR) and maximum combustion pressure, according to the findings. The premixed burning fractions were commonly higher at all engine loads, whereas the diffusion combustion fractions were lower. When the centre of the HRR changed toward the top dead centre (TDC), combustion durations remained rather constant. The experimental results revealed B20 blend at 10% EGR flow rate produced 6.57% lower BTE, 37.04% higher BSEC, 2.47% higher EGT, 5.13% lower CO, 31.11% higher CO2, 3.13% higher UHC, 8.36% lower NOx and 4% higher smoke opacity when compared with diesel in a standard diesel engine.

show abstract

“…Pour this solution into the oil until FFA gets reduced to the desired value of less than 2%. 49,51 • Transesterification reaction:…”

Section: Transesterification Of Jomentioning

confidence: 99%

Comparative analysis of renewable diesel and biodiesel produced from Jatropha oil

Koul

Kumar

Singh

2022

Env Prog and Sustain Energy

Self Cite

View full text Add to dashboard Cite

The quest of moving from conventional diesel fuels to alternate fuels is never-ending.Renewable diesel stands out as it has a similar molecular structure to that of diesel.Renewable diesel from hydroprocessing of Jatropha oil in presence of ruthenium catalyst is not much researched and the same has been worked upon in this paper. The objective of this paper is to analyze physiochemical properties of renewable diesel (R100), biodiesel (B100), and blends of diesel (D100) and renewable diesel and to check the operational feasibility. Renewable diesel was mixed in 10%, 20%, 30%, 40%, and 50%, by volume in diesel. It was observed that renewable diesel had better cold flow properties than diesel. Calorific value (CV) of renewable diesel and biodiesel was 1.84% and 3.92% less than diesel respectively. Present study shows up to 30% renewable diesel in diesel is a substitute fuel, as their viscosities (2.55, 2.60, 2.64cSt), densities (834.4 kg/m 3 , 831.87 kg/m 3 , 830.6 kg/m 3 ) and CVs (42.42 MJ/kg, 42.30 MJ/kg, 42.09 MJ/kg) are close to diesel (2.42cSt, 837 kg/m 3 and 42.57 MJ/ kg). This is also confirmed by a storage stability test conducted for 24 weeks. Cetane number of blends of R100 greater than 30% are found to be high; this can interfere with engine power output hence requiring amendments in current engines, which is not possible, therefore it is feasible to use blends only up to 30% of R100. GC-MS and Fourier transform infrared radiation showed a higher number of hydrocarbon atoms with diminutive oxygen percentage in R100, vis-a-vis, higher levels of unsaturation with more oxygen in B100.

show abstract

Comparison of fuel characteristics of hydrotreated waste cooking oil with its biodiesel and fossil diesel

Cited by 22 publications

References 49 publications

An experimental investigation on spray, performance and emission of hydrotreated waste cooking oil blends in an agricultural engine

An experimental investigation on spray, performance and emission of hydrotreated waste cooking oil blends in an agricultural engine

Thermal and Chemical Exhaust Gas Recirculation Potential of Punnai Oil Biodiesel Fuelled Diesel Engine For Environmental Sustainability

Comparative analysis of renewable diesel and biodiesel produced from Jatropha oil

Contact Info

Product

Resources

About