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A comparative study of almond biodiesel-diesel blends for diesel engine in terms of performance and emissions.

Abu-Hamdeh NH, Alnefaie KA - Biomed Res Int (2015)

Bottom Line: A blend of almond biodiesel with diesel fuel gradually reduced the engine CO and total particulate emissions compared to diesel fuel alone.This reduction increased with more almond biodiesel blended into the fuel.Finally, a slight increase in engine NO x using blends of almond biodiesel was measured.

View Article: PubMed Central - PubMed

Affiliation: Mechanical Engineering Department, Faculty of Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia.

ABSTRACT
This paper investigates the opportunity of using almond oil as a renewable and alternative fuel source. Different fuel blends containing 10, 30, and 50% almond biodiesel (B10, B30, and B50) with diesel fuel (B0) were prepared and the influence of these blends on emissions and some performance parameters under various load conditions were inspected using a diesel engine. Measured engine performance parameters have generally shown a slight increase in exhaust gas temperature and in brake specific fuel consumption and a slight decrease in brake thermal efficiency. Gases investigated were carbon monoxide (CO) and oxides of nitrogen (NOx). Furthermore, the concentration of the total particulate and the unburned fuel emissions in the exhaust gas were tested. A blend of almond biodiesel with diesel fuel gradually reduced the engine CO and total particulate emissions compared to diesel fuel alone. This reduction increased with more almond biodiesel blended into the fuel. Finally, a slight increase in engine NO x using blends of almond biodiesel was measured.

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Schematic arrangement of the system.
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fig1: Schematic arrangement of the system.

Mentions: Experiments were performed to study biodiesel from almond oil as a substitute fuel to operate a diesel engine and the performance data were recorded. The exhaust gases constitution and the percentage of contaminant emissions were also measured and investigated. The experimental setup, schematically shown in Figure 1, consists of a single-cylinder, water-cooled, naturally aspirated, direct-injection (DI), and variable compression engine mounted on a standard TEQUIPMENT TD 43 test rig made in Britain. Swept volume of the engine was 583 cm3 with a 95 mm bore and 82 mm bore by stroke. The injection system consists of an in-line fuel injection pump and throttle-type nozzle. The combustion chamber is direct injection type with a bowl-in piston design. The injection timing and injection pressure were set at 21° crank angle bTDC and 20 MPa, respectively. The cylinder pressure at each crank angle was measured and stored by a digital data acquisition system. It consisted of a Kistler water-cooled flush mounted piezoelectric pressure transducer in conjunction with Kistler charge amplifier for converting the electric charge into voltage. It could measure and store up to 200 cycles engine pressure histories. The measured data can be analyzed online or stored for postprocessing. A Chromel-Alumel (k-type) thermocouple together with a calibrated digital display was used to measure exhaust gas temperature. Load was applied through the engine's connection to an electrical generator dynamometer and could be varied by changing the control panel voltage. A rotameter was used to measure the flow rate of cooling water. The engine was similar to an engine used in a former study [39].


A comparative study of almond biodiesel-diesel blends for diesel engine in terms of performance and emissions.

Abu-Hamdeh NH, Alnefaie KA - Biomed Res Int (2015)

Schematic arrangement of the system.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4385612&req=5

fig1: Schematic arrangement of the system.
Mentions: Experiments were performed to study biodiesel from almond oil as a substitute fuel to operate a diesel engine and the performance data were recorded. The exhaust gases constitution and the percentage of contaminant emissions were also measured and investigated. The experimental setup, schematically shown in Figure 1, consists of a single-cylinder, water-cooled, naturally aspirated, direct-injection (DI), and variable compression engine mounted on a standard TEQUIPMENT TD 43 test rig made in Britain. Swept volume of the engine was 583 cm3 with a 95 mm bore and 82 mm bore by stroke. The injection system consists of an in-line fuel injection pump and throttle-type nozzle. The combustion chamber is direct injection type with a bowl-in piston design. The injection timing and injection pressure were set at 21° crank angle bTDC and 20 MPa, respectively. The cylinder pressure at each crank angle was measured and stored by a digital data acquisition system. It consisted of a Kistler water-cooled flush mounted piezoelectric pressure transducer in conjunction with Kistler charge amplifier for converting the electric charge into voltage. It could measure and store up to 200 cycles engine pressure histories. The measured data can be analyzed online or stored for postprocessing. A Chromel-Alumel (k-type) thermocouple together with a calibrated digital display was used to measure exhaust gas temperature. Load was applied through the engine's connection to an electrical generator dynamometer and could be varied by changing the control panel voltage. A rotameter was used to measure the flow rate of cooling water. The engine was similar to an engine used in a former study [39].

Bottom Line: A blend of almond biodiesel with diesel fuel gradually reduced the engine CO and total particulate emissions compared to diesel fuel alone.This reduction increased with more almond biodiesel blended into the fuel.Finally, a slight increase in engine NO x using blends of almond biodiesel was measured.

View Article: PubMed Central - PubMed

Affiliation: Mechanical Engineering Department, Faculty of Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia.

ABSTRACT
This paper investigates the opportunity of using almond oil as a renewable and alternative fuel source. Different fuel blends containing 10, 30, and 50% almond biodiesel (B10, B30, and B50) with diesel fuel (B0) were prepared and the influence of these blends on emissions and some performance parameters under various load conditions were inspected using a diesel engine. Measured engine performance parameters have generally shown a slight increase in exhaust gas temperature and in brake specific fuel consumption and a slight decrease in brake thermal efficiency. Gases investigated were carbon monoxide (CO) and oxides of nitrogen (NOx). Furthermore, the concentration of the total particulate and the unburned fuel emissions in the exhaust gas were tested. A blend of almond biodiesel with diesel fuel gradually reduced the engine CO and total particulate emissions compared to diesel fuel alone. This reduction increased with more almond biodiesel blended into the fuel. Finally, a slight increase in engine NO x using blends of almond biodiesel was measured.

Show MeSH
Related in: MedlinePlus