Investigation of in-nozzle flow behavior coupled with spray characteristics of waste cooking oil and castor biodiesel
Article
Article Title | Investigation of in-nozzle flow behavior coupled with spray characteristics of waste cooking oil and castor biodiesel |
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Article Category | Article |
Authors | ul Haq, Muteeb, Jafry, Ali Turab, Khan, Wajahat Ullah, Ahmed, Arslan, Ahad, Muhammad Abdul, Algayyim, Sattar Jabbar Murad, Abbas, Naseem, Sajjad, Uzair and Hamid, Khalid |
Journal Title | Energy Conversion and Management: X |
Journal Citation | 24 |
Article Number | 100787 |
Number of Pages | 15 |
Year | 2024 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 2590-1745 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.ecmx.2024.100787 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2590174524002654 |
Abstract | Biodiesel is a promising alternative to conventional diesel. However, it may cause reduced mass flow, higher injector deposits and poor atomization. This study presents the numerical investigation of the effect of in-nozzle flow on fuel spray behavior for castor methyl ester (CME20) and waste cooking oil methyl ester (WCME20) using two different nozzle hole sizes. Two step simulation methodology was adopted where flow inside the nozzle was simulated first, mass flow rate and velocities at nozzle outlet were used as an input for analyzing the fuel spray in a closed vessel. These simulated results of fuel spray were also validated with experimental results from the captured spray images from control volume spray vessel (CVSV). Experimental spray results were also investigated based on light intensity level and macroscopic spray properties. Results revealed higher cavitation intensity for diesel than biodiesel fuels. Smaller nozzle hole (N2) is more likely to cavitate as compared to larger nozzle diameter (N1). In terms of spray behavior, N1 nozzle on average showed longer penetration length (+1.95 %), wider spray cone angle (+6.2 %) and larger drop diameter (+3.1 %) in comparison to N2. CME20, due to its increased viscosity and density showed longer penetration length (+5.9 %), narrower spray cone angle (−21 %) and reduced spray projected area (−19 %) with respect to diesel. WCME20 revealed smaller sauter mean diameter (−4.8 %) as compared to CME20 owing to its lower viscosity. |
Keywords | Methyl ester; Spray cone angle; Spray projected area; Control volume spray vessel and penetration ; length |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401703. Energy generation, conversion and storage (excl. chemical and electrical) |
Byline Affiliations | Air University Islamabad, Pakistan |
Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Pakistan | |
COMSATS University Islamabad, Pakistan | |
School of Engineering | |
Sejong University, Korea | |
King Fahd University of Petroleum and Minerals, Saudi Arabia | |
Norwegian University of Science and Technology, Norway |
https://research.usq.edu.au/item/zv03x/investigation-of-in-nozzle-flow-behavior-coupled-with-spray-characteristics-of-waste-cooking-oil-and-castor-biodiesel
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