The performance analysis and design optimization of fuel temperature control for the injection combustion engine

Hsueh, Ming-Hsien; Lin, Da-Fu

doi:10.1080/02533839.2016.1208540

Cited by 7 publications

(6 citation statements)

References 10 publications

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“…The energy imbalance instigated by the excessive use of nonrenewable fuels in the automotive industry in specific and the industrial sector in general is an alarming issue. − Moreover, the shambolic state of global warming and pollution associated with exhaust emissions and engine lubricating oil disposal is equally unignorable. , Among all fuels, hydrocarbon fuel is majorly responsible for environmental pollution . 18% of global primary energy is utilized by the transport sector and is primarily accountable for 23% of global CO 2 emissions, eventually leading to consequences of global warming .…”

Section: Introductionmentioning

confidence: 99%

Acetone–Gasoline Blend as an Alternative Fuel in SI Engines: A Novel Comparison of Performance, Emission, and Lube Oil Degradation

et al. 2023

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The disproportionate use of petroleum products and stringent exhaust emissions has emphasized the need for alternative green fuels. Although several studies have been conducted to ascertain the performance of acetone–gasoline blends in spark-ignition (SI) engines, limited work has been done to determine the influence of fuel on lubricant oil deterioration. The current study fills the gap through lubricant oil testing by running the engine for 120 h on pure gasoline (G) and gasoline with 10% by volume acetone (A10). Compared to gasoline, A10 produced better results in 11.74 and 12.05% higher brake power (BP) and brake thermal efficiency (BTE), respectively, at a 6.72% lower brake-specific fuel consumption (BSFC). The blended fuel A10 produced 56.54, 33.67, and 50% lower CO, CO2, and HC emissions. However, gasoline remained competitive due to lower oil deterioration than A10. The flash-point and kinematic viscosity, compared to fresh oil, decreased by 19.63 and 27.43% for G and 15.73 and 20.57% for A10, respectively. Similarly, G and A10 showed a decrease in total base number (TBN) by 17.98 and 31.46%, respectively. However, A10 is more detrimental to lubricating oil due to a 12, 5, 15, and 30% increase in metallic particles like aluminum, chromium, copper, and iron, respectively, compared to fresh oil. Performance additives like calcium and phosphorous in lubricant oil for A10 decreased by 10.04 and 4.04% in comparison to gasoline, respectively. The concentration of zinc was found to be 18.78% higher in A10 when compared with gasoline. A higher proportion of water molecules and metal particles were found in lubricant oil for A10.

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Section: Introductionmentioning

confidence: 99%

Acetone–Gasoline Blend as an Alternative Fuel in SI Engines: A Novel Comparison of Performance, Emission, and Lube Oil Degradation

et al. 2023

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“…Therefore, to achieve a decrease in emissions output of an internal combustion engine, there is a requirement to improve the accuracy between the approximated and real fuel injection temperatures as these variables are fundamental for any combustion study [2]. The temperature of the fuel is known to affect liquid and vapour penetration lengths, as well as ignition delay, which contributes to pre-catalyst engine-out emissions [3]. Higher fuel temperatures have been seen to increase CO2, un-burnt hydrocarbon emissions and increased brake thermal efficiency while decreasing NOX [4,5].…”

Section: Introductionmentioning

confidence: 99%

High-Speed Thermographic Analysis of Diesel Injector Nozzle Tip Temperature

Gander¹,

Crua²,

Sykes³

et al. 2022

SAE Int. J. Adv. & Curr. Prac. in Mobility

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The temperature of fuel injectors can affect the flow inside nozzles and the subsequent spray and liquid films on the injector tips. These processes are known to impact fuel mixing, combustion and the formation of deposits that can cause engines to go off calibration. However, there is a lack of experimental data for the transient evolution of nozzle temperature throughout engine cycles and the effect of operating conditions on injector tip temperature. Although some measurements of engine surface temperature exist, they have relatively low temporal resolutions and cannot be applied to production injectors due to the requirement for a specialist coating which can interfere with the orifice geometry. To address this knowledge gap, we have developed a high-speed infrared imaging approach to measure the temperature of the nozzle surface inside an optical diesel engine. We investigated ways of increasing the emissivity of the nozzle surface with minimal intrusion by applying thin carbon coatings. We compare our measurements with those from a production injector that was instrumented with internal thermocouples. Our steady-state off-engine investigation showed that nozzle surface temperature measured by infrared imaging could yield data at 1200 fps with uncertainties of +20 K to -1 K compared to simultaneous thermocouple measurements. We applied this approach to an optical diesel engine to investigate the effect of injection duration and increased swirl ratio on injector nozzle temperature and surface homogeneity.

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“…It is well known that the primary sources of inefficiencies and pre-treatment emission production reside in the air-fuel mixing and combustion processes [1,2]. Reducing the uncertainty between real and approximated injected fuel temperature is fundamental for any combustion study, due to its influence on spray development and combustion characteristics [3][4][5]. Increased fuel temperature causes shorter liquid and vapour penetration length [6][7][8] and shorter ignition delay [9], both parameters considerably affecting engine out emissions [5].…”

Section: Introductionmentioning

confidence: 99%

“…Reducing the uncertainty between real and approximated injected fuel temperature is fundamental for any combustion study, due to its influence on spray development and combustion characteristics [3][4][5]. Increased fuel temperature causes shorter liquid and vapour penetration length [6][7][8] and shorter ignition delay [9], both parameters considerably affecting engine out emissions [5]. The internal nozzle temperature also significantly influences the emerging jet through its relationship with the geometrically induced cavitation within the orifice channels [10].…”

Section: Introductionmentioning

confidence: 99%

High-Speed Infrared Measurement of Injector Tip Temperature during Diesel Engine Operation

et al. 2021

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Pre-catalyst engine emissions and detrimental injector deposits have been widely associated with the near-nozzle fluid dynamics during and after the injection events. Although the heating and evaporation of fuel films on the nozzle surface directly affects some of these processes, there are no experimental data for the transient evolution of nozzle surface temperature during typical engine conditions. In order to address this gap in knowledge, we present a non-intrusive approach for the full-cycle time resolved measurement of the surface temperature of production nozzles in an optical engine. A mid-wave infrared high-speed camera was calibrated against controlled conditions, both out of engine and in-engine to account for non-ideal in surface emissivity and optical transmissivity. A custom-modified injector with a thermocouple embedded below the nozzle surface was used to validate the approach under running engine conditions. Calibrated infrared thermography was then applied to characterise the nozzle temperature at 1200 frames per second, during motored and fired engine operation, thus revealing for the first time the effect of transient operating conditions on the temperature of the injector nozzle’s surface.

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The performance analysis and design optimization of fuel temperature control for the injection combustion engine

Cited by 7 publications

References 10 publications

Acetone–Gasoline Blend as an Alternative Fuel in SI Engines: A Novel Comparison of Performance, Emission, and Lube Oil Degradation

Acetone–Gasoline Blend as an Alternative Fuel in SI Engines: A Novel Comparison of Performance, Emission, and Lube Oil Degradation

High-Speed Thermographic Analysis of Diesel Injector Nozzle Tip Temperature

High-Speed Infrared Measurement of Injector Tip Temperature during Diesel Engine Operation

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