Numerical simulation of the effect of LPG blending on the characteristics of a diesel engine

Al‐Dawody, Mohamed F.; Al-Chlaihawi, Kadhim K. Idan; Al‐Farhany, Khaled

doi:10.1002/htj.22381

Cited by 5 publications

(2 citation statements)

References 37 publications

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“…So, increasing the biodiesel concentration in the Diesel enhances the diffu sion combustion and therefore reduces the smoke opacity [29]. Moreover, LPG has a low C/H ratio [34], so the combustion of LPG produces fewer particulates than Diesel and 40%ECB. With 40%ECB, the percentage of smoke reduction at a full load is 76.47% in comparison with the PID.…”

Section: Analysis Of Smoke Opacitymentioning

confidence: 99%

The Effect of Eichhornia Crassipes Biodiesel/LPG Dual-Fuel on Performance and Emissions in a Single-Cylinder Compression Ignition Engine

Mohammed¹,

Mashkour²

2022

ETJ

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 The combustion was enhanced with the addition of E.  The engine operation was smooth and had less fuel consumption when using biodiesel and LPG.  Engine running on dual fuel mode (40%ECB-LPG) is more economical.  HC emission decreases with ECB.This study investigates the effects of Eichhornia Crassipes Biodiesel (ECB) with liquefied petroleum gas (LPG) dual-fuel on diesel engine performance and exhaust emissions characteristics. A four-stroke, single-cylinder and water-cooled diesel engine was used. The engine was operated with pure Iraqi diesel (PID) as a reference fuel, 40% ECB-60% PID, and duel fuel mode (DFM ) (40% ECB-60% PID-2.4 l/min LPG). The experimental testing was carried out at 1500 rpm constant engine speed, compression ratio 18, and time injection 23° bTDC under various load conditions (25%, 50%, 75%, and 100%) full load. Using a gas analyzer, the engine emissions, including carbon dioxide (CO2), carbon monoxide (CO), hydrocarbon (HC), and nitrogen oxides (NOx), were measured. An OPABOX smoke unit was used to determine the smoke intensity. The result manifested that the 40% ECB reduced the thermal brake efficiency (BTH) by 7% at partial load, compared with the PID. Exhaust emissions tests at full load displayed a reduction in CO2, CO, HC, and smoke by 44.4%, 70.34%, 31%, 76%, and 47%, respectively, with increasing NOx emission by 17.02% compared with the PID. The (LPG-40% ECB) DFM at full load elucidated a reduction in CO2, CO, and smoke by (52.38%-14.28%), (81.48%-37.5%) and (86.28 %-41.7%), respectively, while there was an increase in HC and NOx emission by of (15.38%-40%) and (34.2%-20.07%), respectively, compared with the PID and 40% ECB, where the BTH in DFM was higher than 40% ECB by 9.07%. Finally, the brakespecific fuel consumption (BSFC) decreased by (10.11%-11.2%) compared with PID and 40% biodiesel.

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Section: Analysis Of Smoke Opacitymentioning

confidence: 99%

The Effect of Eichhornia Crassipes Biodiesel/LPG Dual-Fuel on Performance and Emissions in a Single-Cylinder Compression Ignition Engine

Mohammed¹,

Mashkour²

2022

ETJ

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“…The release rate of heat is seen in Figure 5. When LPG is mixed with diesel, the delay between ignition and combustion is cut down, so combustion can start sooner, and less heat is given off [45]. Diesel's highest energy output is 32.53 (1/deg.)…”

Section: A Combustion Analysismentioning

confidence: 99%

The combustion characteristics of compression ignition engine fuelled partially by LPG-Diesel blends (Simulation study)

Mohsen

Al‐Dawody

2022

QJES

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This paper proposes a numerical investigation of the behavior of the dual diesel-Liquefied Petroleum Gas (LPG) engine. Numerical analysis is performed with the aid of the simulation program Diesel-RK. Three volumetric LPG blends: 5 % LPG, 8 % LPG, and 10%LPG are inducted with air intake for a single cylinder,4-stroke, constant speed diesel engine with a fixed compression ratio of 15.5/1. No dramatic change in combustion pressure is seen for 5%,8%, and 10% LPG compared to the case of 0% LPG (diesel only). Diesel's maximum energy production is 32.53 (1/deg.) at 365 degrees BTDC, and this is lowered to 30.28 (1/deg.) at the same crank angle when using 10% LPG. Maximum temperature and pressure rise a little bit by 0.14 % and 0.41 % for 10 % LPG. Increasing the LPG injection rate reduces volumetric efficiency and mechanical efficiency slightly. The results found a slight increase in NOx and a considerable reduction is captured in Bosch smoke number (BSN) when LPG is used with diesel. The obtained is validated with the findings of other researchers.

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Mechanical engineering advantages of a dual fuel diesel engine powered by diesel and aqueous ammonia blends

Al‐Dawody

Al-Obaidi

Aboud

et al. 2023

Fuel

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Numerical simulation of the effect of LPG blending on the characteristics of a diesel engine

Cited by 5 publications

References 37 publications

The Effect of Eichhornia Crassipes Biodiesel/LPG Dual-Fuel on Performance and Emissions in a Single-Cylinder Compression Ignition Engine

The Effect of Eichhornia Crassipes Biodiesel/LPG Dual-Fuel on Performance and Emissions in a Single-Cylinder Compression Ignition Engine

The combustion characteristics of compression ignition engine fuelled partially by LPG-Diesel blends (Simulation study)

Mechanical engineering advantages of a dual fuel diesel engine powered by diesel and aqueous ammonia blends

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