Study of the characteristics of PM and the correlation of soot and smoke opacity on the diesel methanol dual fuel engine

Chen, Chao; Yao, Anren; Yao, Chunde; Wang, Bin; Han, Lijun; Feng, Jian; Feng, Luyu

doi:10.1016/j.applthermaleng.2018.11.062

Cited by 48 publications

(14 citation statements)

References 44 publications

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“…The tests were carried out on a DMDF engine. The modification of DMDF engine has been described in ref [2]. The main parameters of this engine have also been shown in ref [2].…”

Section: Experimental Apparatus and Methodsmentioning

confidence: 99%

“…The modification of DMDF engine has been described in ref [2]. The main parameters of this engine have also been shown in ref [2]. Figure 1 illustrates the schematic diagram of engine test system.…”

Section: Experimental Apparatus and Methodsmentioning

confidence: 99%

“…The diesel methanol dual fuel (DMDF) technology has been applied on diesel engines to reduce the diesel consumption as well as the emissions of nitrogen oxides (NOX) and particulate matter (PM) in the past years [1,2]. But the DMDF mode has high hydrocarbons (HC), carbon monoxide (CO) and nitrogen dioxide (NO2) emissions [1,3].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characteristics of Nitrogen Dioxide from A Diesel Methanol Dual Fuel Engine

Chao¹,

Chen²,

Yao³

et al. 2020

Preprint

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“…The tests were carried out on a DMDF engine. The modification of DMDF engine has been described in ref [2]. The main parameters of this engine have also been shown in ref [2].…”

Section: Experimental Apparatus and Methodsmentioning

confidence: 99%

Section: Experimental Apparatus and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics of Nitrogen Dioxide from A Diesel Methanol Dual Fuel Engine

Chao¹,

Chen²,

Yao³

et al. 2020

Preprint

Self Cite

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“…Another is the DMDF mode of injecting methanol into the inlet and diesel in the cylinder. Yao Chunde [5] studied the particulate characteristics and smoke correlation of intake premixed methanol/diesel dual fuel engine were studied. Zhang et al [6] showed that the diesel/methanol dual-fuel mode decreased NOX Smoke and PM emissions increased hydrocarbons (HC), carbon monoxide (CO) and nitrogen dioxide (NO)2).…”

Section: Introductionmentioning

confidence: 99%

Study on the influence of alumina nanomethanol fluid on the performance, combustion and emission of DMDF diesel engine

2021

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With the increasingly strict domestic emission regulations, how to reduce diesel emission without affecting its output power has become a hot and important research topic. Due to their unique physical and chemical properties, the combined use of methanol and Al2O3 nanoparticles plays a unique role in promoting combustion and reducing emissions. In this study, Al2O3 methanol nanofluid fuel was injected into the inlet and diesel fuel was injected into the cylinder to explore the influence of Al2O3 nanoparticles on the performance, combustion and emissions of diesel methanol dual fuel (DMDF) entered. The experienced results showed that with the addition of Al2O3 nanoparticles in methanol, the peak pressure and heat release rate in the cylinder of the diesel engine were improved, the combustion delay period and the combustion duration were shortened, the fuel consumption rate was reduced by up to 10.8%, and the braking thermal efficiency was increased by 12.11% at most. With the addition of Al2O3 nanoparticles, NOx, CO, HC and soot ratio emissions of the engine were reduced, among which the NOx reduction ratio was small, and the maximum reduction ratio of the last three was 28.82%, 83.33% and 29.27% respectively.

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“…the NO x and CO concentration in the exhaust gases [55] at full-load and at six different speeds was measured with a "Vario Plus Industrial" gas analyser by MRU Instruments (Houston, TX, USA) [56]; the gas samples (360 in total; 12 per each of the 30 fuel and speed combinations of values) were taken only after the engine speed was stable at each set value; • the smoke opacity of the exhaust gases (related to the soot measured by the filter smoke number [43,44]) was measured through a "OpTrans 1600" optical Diesel smoke-meter by MRU Instruments [45,56], conforming to NF R 10-025, PTB EO 18-09, ISO 11614 draft and ECE R24, Annex 8/9 specifications; also in this case, the gas samples (90 in total; three per each of the 30 fuel-and-speed combinations of values) were taken only after the engine speed was stable at each set value; the output of this instrument, based on the photometric absorbance principle, is a measurement of the smoke density expressed as absorption coefficient from 0.00 to 9.99 m −1 . [54] was used to measure the engine torque and power at the above-mentioned rotational speeds ( Figure 1);…”

mentioning

confidence: 99%

Proposal of a Predictive Mixed Experimental- Numerical Approach for Assessing the Performance of Farm Tractor Engines Fuelled with Diesel- Biodiesel-Bioethanol Blends

et al. 2019

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The effect of biofuel blends on the engine performance and emissions of agricultural machines can be extremely complex to predict even if the properties and the effects of the pure substances in the blends can be sourced from the literature. Indeed, on the one hand, internal combustion engines (ICEs) have a high intrinsic operational complexity; on the other hand, biofuels show antithetic effects on engine performance and present positive or negative interactions that are difficult to determine a priori. This study applies the Response Surface Methodology (RSM), a numerical method typically applied in other disciplines (e.g., industrial engineering) and for other purposes (e.g., set-up of production machines), to analyse a large set of experimental data regarding the mechanical and environmental performances of an ICE used to power a farm tractor. The aim is twofold: i) to demonstrate the effectiveness of RSM in quantitatively assessing the effects of biofuels on a complex system like an ICE; ii) to supply easy-to-use correlations for the users to predict the effect of biofuel blends on performance and emissions of tractor engines. The methodology showed good prediction capabilities and yielded interesting outcomes. The effects of biofuel blends and physical fuel parameters were adopted to study the engine performance. Among all possible parameters depending on the fuel mixture, the viscosity of a fuel blend demonstrated a high statistical significance on some system responses directly related to the engine mechanical performances. This parameter can constitute an interesting indirect estimator of the mechanical performances of an engine fuelled with such blend, while it showed poor accuracy in predicting the emissions of the ICE (NOx, CO concentration and opacity of the exhaust gases) due to a higher influence of the chemical composition of the fuel blend on these parameters; rather, the blend composition showed a much higher accuracy in the assessment of the mechanical performance of the ICE.

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Study of the characteristics of PM and the correlation of soot and smoke opacity on the diesel methanol dual fuel engine

Cited by 48 publications

References 44 publications

Characteristics of Nitrogen Dioxide from A Diesel Methanol Dual Fuel Engine

Characteristics of Nitrogen Dioxide from A Diesel Methanol Dual Fuel Engine

Study on the influence of alumina nanomethanol fluid on the performance, combustion and emission of DMDF diesel engine

Proposal of a Predictive Mixed Experimental- Numerical Approach for Assessing the Performance of Farm Tractor Engines Fuelled with Diesel- Biodiesel-Bioethanol Blends

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