Effects of injection pressure on spray structure after wall impingement

Wei Du; Qiankun Zhang; Wenhua Bao; Juejue Lou

doi:10.1016/j.applthermaleng.2017.10.083

Effects of injection pressure on spray structure after wall impingement

Wei Du^*, Qiankun Zhang, Wenhua Bao, Juejue Lou

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

It is known that a constant injection mass is a criterion for measuring the thermal efficiency of diesel engines. In this study, the effects of the injection pressure on the spray structure after wall impingement are investigated under the condition of a constant injection mass. Experiments are performed in a constant volume combustion chamber using a high-pressure common-rail injector with a single-hole nozzle. A high-speed camera and Schlieren visualization setup are used to capture the behavior of liquid- and vapor-phase impingement spray, respectively. Variation laws for the radius, height, and area of impingement spray in both the liquid and vapor phases are obtained by analyzing the images captured in these experiments.

Original language	English
Pages (from-to)	1212-1218
Number of pages	7
Journal	Applied Thermal Engineering
Volume	129
DOIs	https://doi.org/10.1016/j.applthermaleng.2017.10.083
Publication status	Published - 25 Jan 2018

Keywords

Constant injection mass
Impingement spray area
Impingement spray height
Impingement spray radius
Liquid phase
Vapor phase

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10.1016/j.applthermaleng.2017.10.083

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title = "Effects of injection pressure on spray structure after wall impingement",

abstract = "It is known that a constant injection mass is a criterion for measuring the thermal efficiency of diesel engines. In this study, the effects of the injection pressure on the spray structure after wall impingement are investigated under the condition of a constant injection mass. Experiments are performed in a constant volume combustion chamber using a high-pressure common-rail injector with a single-hole nozzle. A high-speed camera and Schlieren visualization setup are used to capture the behavior of liquid- and vapor-phase impingement spray, respectively. Variation laws for the radius, height, and area of impingement spray in both the liquid and vapor phases are obtained by analyzing the images captured in these experiments.",

keywords = "Constant injection mass, Impingement spray area, Impingement spray height, Impingement spray radius, Liquid phase, Vapor phase",

author = "Wei Du and Qiankun Zhang and Wenhua Bao and Juejue Lou",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

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day = "25",

doi = "10.1016/j.applthermaleng.2017.10.083",

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T1 - Effects of injection pressure on spray structure after wall impingement

AU - Du, Wei

AU - Zhang, Qiankun

AU - Bao, Wenhua

AU - Lou, Juejue

PY - 2018/1/25

Y1 - 2018/1/25

N2 - It is known that a constant injection mass is a criterion for measuring the thermal efficiency of diesel engines. In this study, the effects of the injection pressure on the spray structure after wall impingement are investigated under the condition of a constant injection mass. Experiments are performed in a constant volume combustion chamber using a high-pressure common-rail injector with a single-hole nozzle. A high-speed camera and Schlieren visualization setup are used to capture the behavior of liquid- and vapor-phase impingement spray, respectively. Variation laws for the radius, height, and area of impingement spray in both the liquid and vapor phases are obtained by analyzing the images captured in these experiments.

AB - It is known that a constant injection mass is a criterion for measuring the thermal efficiency of diesel engines. In this study, the effects of the injection pressure on the spray structure after wall impingement are investigated under the condition of a constant injection mass. Experiments are performed in a constant volume combustion chamber using a high-pressure common-rail injector with a single-hole nozzle. A high-speed camera and Schlieren visualization setup are used to capture the behavior of liquid- and vapor-phase impingement spray, respectively. Variation laws for the radius, height, and area of impingement spray in both the liquid and vapor phases are obtained by analyzing the images captured in these experiments.

KW - Constant injection mass

KW - Impingement spray area

KW - Impingement spray height

KW - Impingement spray radius

KW - Liquid phase

KW - Vapor phase

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DO - 10.1016/j.applthermaleng.2017.10.083

M3 - Article

AN - SCOPUS:85032341995

SN - 1359-4311

VL - 129

SP - 1212

EP - 1218

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

ER -

Effects of injection pressure on spray structure after wall impingement

Abstract

Keywords

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