Calculation of Specific Exhaust Emissions of Compression Ignition Engine Fueled by Palm Biodiesel Blend

Nitrogen dioxide (NO2) is the ubiquitous chemical structure of NOx in the ambience that is initiated by anthropogenic (human) acts. NO2 is also reacts in the surrounding to result in ozone (O3) and the main culprits for acid rain. Captured proportion of NOx by moisture forms acid rain. Acid rain severely affects certain ecosystems. The facts mentioned indicate necessity to reduce NOx pollution. When any of these oxides disintegrate in H2O and breakup, they result in nitric acid (HNO3) or nitrous acid (HNO2). Automobiles is one of the major sources of the NOx that is emitted. Here in this experimental based research effort has been made to reduce emissions of NOx and CO emitted by the diesel based engine powered by Madhuca longifolia as a biodiesel blended with diesel (B10, B20, B30) by injecting water after exhaust gas manifold to get reaction so as oxides disintegrate in H2O and breakup, they result in nitric acid (HNO3) or nitrous acid (HNO2). Experimental work conducted on Mono-cylinder CRDI engine. Trials were taken with different blends of Madhuca longifolia by setting CR 15,16, 17 and 18 with water injected at 3 different mass flow rates (38.7, 82.7, 130.4 CC/min). Results shows average reduction in NOx by 7.89%, 12.26%, and 17.73% respectively.

Section: Biodieselmentioning

confidence: 99%

Experimental Study of Exhaust Manifold Water Injection on Emission of CI Engine Fueled with Madhuca Longifolia and Diesel Blends

Asfakahemad Shekh,

Nikul Patel,

Bhavesh Pathak

2024

“…Biodiesel is commonly applied in diesel engines, especially in the transportation sector and it has gained popularity as a substitute for diesel fuel for having comparable performance such as thermal efficiency without the need for engine modification when used in diesel engines [6,7]. Although the widespread adoption of 100% biodiesel in commercial vehicles hasn't occurred yet, diesel-biodiesel blends, varying from 5% to 30% biodiesel mixed with pure diesel, are globally accepted and used in diesel engines with either no or minimal modifications [8,9]. In Malaysia, palm oil biodiesel is the most utilized biodiesel [10].…”

Section: Introductionmentioning

confidence: 99%

Analysis on Evaporation Characteristics of Palm Oil Biodiesel using a HSDT Method

Favian Jikol,

Mohd Zaid Akop,

Yusmady Mohamed Ariifin

et al. 2024

The purpose of this study is to investigate the evaporation characteristics of different types of fuels by applying the hot surface deposition test (HSDT). Generally, HSDT method is a simplified method to simulate fuel deposition in diesel engines. In this study, diesel fuel (DF) and palm oil biodiesel with different blend ratios (B10-B50) were used to evaluate the fuel droplet evaporation behavior on a heated aluminum alloy plate surface. Single fuel droplet was impinged on the heated plate at various surface temperatures (Ts). Important data from the evaporation characteristics was the maximum evaporation point (MEP), which is the temperature point where a droplet evaporates in the shortest lifetime (tlife). MEP is referred to identify the surface temperature range in which fewer deposits will be produced by the test fuel. Furthermore, MEP is also used to determine the appropriate droplet interval to create wet and dry conditions in the fuel deposition test. The obtained MEP was 360°C (DF), 365°C (B10, B50), 375°C (B20, B40), and 385°C (B30).

“…It is environmentally friendly, renewable, non-toxic, non-flammable, and non-explosive. Its qualities are comparable to those of diesel fuel, where the main benefits of biodiesel are its ability to be blended with diesel fuel in any ratio, and able to be used in diesel engines without the need for modification [5][6][7][8]. Apart from that, alcohol, which is already readily available, can be blended with biodiesel and neat diesel fuel [9].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Palm Oil Biodiesel-Neat Diesel (B10-B50) Mixing Ratio on Physical Mechanism of Fuel Deposits Developed on Heated Al Surface

Favian Jikol,

Mohd Zaid Akop,

Yusmady Mohamed Ariifin

et al. 2024

To improve the physicochemical properties of biodiesel, researchers have been mixing pure biodiesel with neat diesel to produce blended fuels with certain blending ratios. However, one of the issues when combining ordinary diesel with biodiesel is the formation of deposits. In this study, the hot surface deposition test (HSDT) method was employed to investigate the effect of the mixing ratio on the deposition of diesel fuel (DF) and its blends with Malaysian palm oil biodiesel (B10-B50). The accumulated fuel deposits produced by the test fuels up to ND=16000 droplets were studied based on visual inspection and the use of a scanning electron microscope (SEM) to study the deposits’ composition. Generally, the higher the blend ratio, the more deposits were formed on the hot plate. Furthermore, a greater mass of deposits was produced during the wet condition (timp=3 seconds) test compared to that of the dry condition (timp=7 seconds) test. Deposits’ distribution area produced by the B30, B40, and B50 fuels were larger and appeared to be oily/greasy. Meanwhile, deposits produced by DF, B10, and B20 seem to be dry. The radius of the solid deposit was also larger during the wet condition test. For dry condition test at droplet ND=16000, the mass of deposit produced was 3.7mg (4mm radius) for DF, 3.9mg (5mm radius) for B10, 17.1mg (9mm radius) for B20, 24.0mg (9mm radius) for B30, 25.1mg (9mm radius) for B40, and 28.8mg (7mm radius) for B50. On the other hand, for the wet condition test, the mass of the deposit generated was 4.4mg (4mm radius) for DF, 8.9mg (7mm radius) for B10, 20.4mg (11mm radius) for B20, 31.1mg (13mm radius) for B30, 62.4mg (15mm radius) for B40, and 58.2mg (13mm radius) for B50, respectively. Additionally, the SEM analysis showed that the deposits’ composition for each test fuel primarily consists of carbon (>65%), with relatively lower oxygen concentration (<35%). The dry and wet condition also has a significant impact on the various deposits’ morphology.