Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engine

This study investigates for the first time the effects of using Jojoba biodiesel-water emulsion in a diesel engine combustion, engine performance, exhaust emissions, block vibration and noise. The engine analysis was conducted using a single-cylinder diesel engine equipped with a pressure sensor in...

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Main Authors: Ihab Ayad, Mohamed Y.E. Selim, Mamdouh T. Ghannam
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Energy Conversion and Management: X
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590174525000133
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author Ihab Ayad
Mohamed Y.E. Selim
Mamdouh T. Ghannam
author_facet Ihab Ayad
Mohamed Y.E. Selim
Mamdouh T. Ghannam
author_sort Ihab Ayad
collection DOAJ
description This study investigates for the first time the effects of using Jojoba biodiesel-water emulsion in a diesel engine combustion, engine performance, exhaust emissions, block vibration and noise. The engine analysis was conducted using a single-cylinder diesel engine equipped with a pressure sensor in the combustion chamber, an accelerometer for vibration measurement, microphone condenser probe for noise, an external flow meter to measure the fuel flow rate, and an orifice meter to measure the air flow rate. The engine speed varied from 1600 to 2100 rev/min, and the fuel pump rack position was adjusted to middle position to control the engine power output. The fuel used was Jojoba biodiesel − water emulsion at different water ratios (0%, 5%, 10%, and 15%) and compared to pure diesel. The data recorded continuously over time included cylinder combustion pressure, sound pressure level (external noise), block vibration smoke opacity, and exhaust gases. The results showed that the use of Jojoba biodiesel-water emulsion led to a reduction in NOx and HC emissions compared to jojoba biodiesel, and a reduction in exhaust gas temperature. Brake power and maximum cylinder pressure were not significantly affected by adding water the jojoba biodiesel. The study provides valuable insights into the potential of Jojoba biodiesel-water emulsion as an alternative engine fuel.
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institution Kabale University
issn 2590-1745
language English
publishDate 2025-01-01
publisher Elsevier
record_format Article
series Energy Conversion and Management: X
spelling doaj-art-7f2dc3482c9e40fd8094f1613d4bcced2025-01-21T04:13:18ZengElsevierEnergy Conversion and Management: X2590-17452025-01-0125100881Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engineIhab Ayad0Mohamed Y.E. Selim1Mamdouh T. Ghannam2Department of Mechanical and Aerospace Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab EmiratesDepartment of Mechanical and Aerospace Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab Emirates; Corresponding authors.Department of Chemical and Petroleum Engineering, College of Engineering, United Arab Emirates University, Al-Ain, United Arab Emirates; Corresponding authors.This study investigates for the first time the effects of using Jojoba biodiesel-water emulsion in a diesel engine combustion, engine performance, exhaust emissions, block vibration and noise. The engine analysis was conducted using a single-cylinder diesel engine equipped with a pressure sensor in the combustion chamber, an accelerometer for vibration measurement, microphone condenser probe for noise, an external flow meter to measure the fuel flow rate, and an orifice meter to measure the air flow rate. The engine speed varied from 1600 to 2100 rev/min, and the fuel pump rack position was adjusted to middle position to control the engine power output. The fuel used was Jojoba biodiesel − water emulsion at different water ratios (0%, 5%, 10%, and 15%) and compared to pure diesel. The data recorded continuously over time included cylinder combustion pressure, sound pressure level (external noise), block vibration smoke opacity, and exhaust gases. The results showed that the use of Jojoba biodiesel-water emulsion led to a reduction in NOx and HC emissions compared to jojoba biodiesel, and a reduction in exhaust gas temperature. Brake power and maximum cylinder pressure were not significantly affected by adding water the jojoba biodiesel. The study provides valuable insights into the potential of Jojoba biodiesel-water emulsion as an alternative engine fuel.http://www.sciencedirect.com/science/article/pii/S2590174525000133Jojoba biodieselWater emulsionDiesel enginePerformanceVibrationNoise
spellingShingle Ihab Ayad
Mohamed Y.E. Selim
Mamdouh T. Ghannam
Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engine
Energy Conversion and Management: X
Jojoba biodiesel
Water emulsion
Diesel engine
Performance
Vibration
Noise
title Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engine
title_full Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engine
title_fullStr Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engine
title_full_unstemmed Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engine
title_short Combustion and engine roughness of water − jojoba biodiesel emulsions in diesel engine
title_sort combustion and engine roughness of water jojoba biodiesel emulsions in diesel engine
topic Jojoba biodiesel
Water emulsion
Diesel engine
Performance
Vibration
Noise
url http://www.sciencedirect.com/science/article/pii/S2590174525000133
work_keys_str_mv AT ihabayad combustionandengineroughnessofwaterjojobabiodieselemulsionsindieselengine
AT mohamedyeselim combustionandengineroughnessofwaterjojobabiodieselemulsionsindieselengine
AT mamdouhtghannam combustionandengineroughnessofwaterjojobabiodieselemulsionsindieselengine