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EXPERIMENTAL VALIDATION OF A 3-COMPONENT SURROGATE FOR SASOL-IPK IN SINGLE CYLINDER DIESEL ENGINE AND IQT

[+] Author and Article Information
Samy A. Alkhayat

Mechanical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Suite 2100, Detroit, MI 48202; Ph. D Candidate, Engine Cold Start and Military Jet-Fuels Research, MSc. in Mechanical Engineering, Master of Petroleum Engineering
samy.alkhayat1@gmail.com

Manan J Trivedi

Mechanical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Suite 2100, Detroit, MI 48202
manan.trivedi2@wayne.edu

Naeim A. Henein

Mechanical Engineering, Wayne State University, 5050 Anthony Wayne Drive, room 2121, Detroit, MI 48202
henein@eng.wayne.edu

Sampad Mukhopadhyay

Mechanical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Suite 2100, Detroit, MI 48202
sampad.gre@gmail.com

Peter J. Schihl

U.S. Army RDECOM-TARDEC, 6305 E 11 Mile Road, Warren, MI 48092
peter.j.schihl.civ@mail.mil

1Corresponding author.

ASME doi:10.1115/1.4039805 History: Received November 03, 2017; Revised February 26, 2018

Abstract

Surrogate development is important to extensively investigate the combustion behavior of fuels. Development of comprehensive surrogates has been focusing on matching chemical and physical properties of their target fuel to mimic its atomization, evaporation, mixing, and auto-ignition behavior. More focus has been given to matching the Derived Cetane Number (DCN) as a measure of the auto-ignition quality. In this investigation, we carried out experimental validation of a three-component surrogate for Sasol-IPK in IQT and in an actual diesel engine. The surrogate fuel is composed of three components (46% iso-cetane, 44% decalin and 10% n-nonane on a volume basis). IQT experiments were conducted as per ASTM D6890-10a. Engine experiments were conducted at 1500 RPM, two engine loads, and two injection timings. Analysis of ignition delay, peak pressure, peak RHR and other combustion phasing parameters, showed a closer match in the IQT than in the diesel engine. Comparison between the surrogate combustion behavior in diesel engine and IQT revealed that matching the DCN of the surrogate to its respective target fuel did not result in the same combustion characteristics in the HTC regime, despite the same auto-ignition and LTC profiles. Moreover, a comparison between the combustion behavior of the two fuels in IQT is not consistent with the comparison in the diesel engine, which suggests that the surrogate validation in a single-cylinder diesel engine should be part of the surrogate development methodology, particularly for low ignition quality fuels.

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