Comparative analysis of H2-diesel co-combustion in a single cylinder engine and a chassis dynamometer vehicle

Talibi, Midhat; Hellier, Paul; Watkinson, Martin; Ladommatos, Nicos

doi:10.1016/j.ijhydene.2018.11.092

Cited by 11 publications

(4 citation statements)

References 35 publications

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“…The minibus is fitted with a programmable H2 magnification system with H2 addition levels determined by the accelerator pedal position. Increasing H2, decreases in CO, NOx and particle numbers were observed, but a higher total mass of PM was recorded [36]. [37].…”

Section: Effects Of Biofuels On Vehicle Performance and Emissionsmentioning

confidence: 90%

Investigation of the effects of biofuels on vehicle performance and emissions

Yıldız

Özçelik

2020

International Journal of Energy Applications and Technologies

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fossil resources and the burning of the fuels obtained from these sources have negative aspects such as environmental pollution, acid rain or global warming. The sensitivity shown to the environment is directly related to the economic and welfare levels of the countries. Therefore, the amount of harmful substances that can be found in the exhaust emission in economically developed countries has been determined by standards. Due to such negative effects, studies are carried out on alternative energy sources. Alternative energy sources are a product that is released as a result of the reaction of vegetable oils or animal oils obtained from oilseed plants such as canola, sunflower, corn, cotton, camelina etc. with methanol, a short-chain alcohol, in the presence of a catalyst and used as fuel. Domestic frying oils and animal based oils can also be used as biodiesel raw materials. The eurodiesel fuel used in diesel engines is the main energy source for transportation and freight transportation. Biodiesel produced from oils are important alternative fuels for diesel engines. In this study, the effects of vehicles using different biofuels and mixtures in our country and the world on the chassis dynamometer were investigated, especially on vehicle performance and emissions.

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Section: Effects Of Biofuels On Vehicle Performance and Emissionsmentioning

confidence: 90%

Investigation of the effects of biofuels on vehicle performance and emissions

Yıldız

Özçelik

2020

International Journal of Energy Applications and Technologies

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“…In the experiments, the HPT 6100 brand chassis dynamometer was used. The vehicle dynamometer can perform road test, power test and speed test [21]. The technical information of the Chassis Dynamometer device to be used in the experiments is given in Table 2.…”

Section: Figure 1 Experimental Test Setupmentioning

confidence: 99%

Investigation of the effects of camelina sativa biodiesel and eurodiesel blends on vehicle performance and emissions

Yildiz

Özçelik

2021

International Journal of Automotive Engineering and Technologies

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Studies have been conducted on improving engine performance, reducing environmental pollution caused by vehicles, and using alternative fuels. In the study, tests are carried out in a laboratory environment to check whether the engine has reached the intended use. Testing of internal combustion engines is crucial to research and teaching, trade and environmental pollution. Depending on the purpose of the test, the type and duration of vehicle tests will vary. Automobile manufacturing companies and research units will conduct a series of scientific and long-term tests in the vehicle development process. Thanks to engine and vehicle tests under different operating conditions, the measured values such as economy, power, moment, emission are compared with performance curves. In this study, biodiesel was obtained from crude camelina sativa oil using the transesterification method. Camelina sativa biodiesel was mixed with Eurodiesel at the rate of 7% (B7), 20% (B20) and 50% (B50). Vehicle performance measurements of biodiesel-Eurodiesel blends were made on a vehicle with fourstroke, four-cylinder, Common-rail fuel system, turbocharged and water-cooled engine using a chassis dynamometer. Vehicle performance and exhaust emissions were measured at different speeds during the vehicle chassis dynamometer test. While the highest moment value was obtained at 80 km/h in B7 fuel, the maximum engine power was obtained in B7 fuel at 160 km/h. Average engine power and maximum engine torque of B100 fuel decreased by 3,28% and 10,21% compared to Eurodiesel fuel. As the rate of biodiesel increased, specific fuel consumption increased. The highest specific fuel consumption was obtained with 91,6 g/kWh in B100 fuel at 160 km/h. The average specific fuel consumption of B100 fuel increased 38,5% compared to Eurodiesel fuel. When we look at the results of exhaust emission measurements, it is seen that camelina sativa biodiesel and fuel mixture decreased CO, CO2 and HC values compared to Eurodiesel fuel, but increased NOx values.

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“…The passage from the 1-cylinder to the 4cylinder engine was done by assuming that the other three cylinders have the same behavior than the measured cylinder [32]. This approach was already used by other authors and for verification purpose the original manufactured conventional diesel combustion (CDC) calibration was compared with the results of the SCE in diesel mode with error below the 5% [33]. Figure 1a show the CDC engine map that was originally calibrated and programmed in the engine control unit (ECU) by the manufacturer.…”

Section: Engine and Test Cellmentioning

confidence: 99%

Emissions reduction from passenger cars with RCCI plug-in hybrid electric vehicle technology

Benajes

García

Monsalve‐Serrano

et al. 2020

Applied Thermal Engineering

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Hybrid Electric Vehicles (HEVs) can be considered as a potential technology to promote the change from conventional mobility to e-mobility. However, the real benefits in terms of CO2 emissions depend on a great extent on their mode of use, vehicle design and electricity source. On the other hand, in the last few years, advanced combustion modes as Reactivity Controlled Compression Ignition (RCCI) showed great advantages in terms of NOx and soot emissions reduction. This paper has the purpose of assessing, through numerical simulations fed with experimental results, the potential of different hybrid vehicles when used together with a low temperature combustion mode. In particular, the dual-fuel Mild (MHEV), Full (FHEV) and Plug-in (PHEV) hybrid electric vehicles are tested and compared to the original equipment manufacturer (OEM) and the conventional dual-fuel powertrain, both no-Hybrid vehicles. The powertrains are optimized to meet the current European homologation legislation Worldwide Harmonized Light Vehicle Test Procedure (WLTP). After that, a deep analysis is performed in terms of performance and emissions. Lastly, a life-cycle analysis (LCA) is performed to evaluate the real potential of the different technologies. The results show that the PHEV has the highest benefits in terms of fuel consumption and engine-out emissions. With this technology, it is possible to achieve the 50 g/km CO2 target for the PHEVs with a medium battery size (15 kWh), while NOx and soot levels are under the Euro 6 limits. In addition, the RCCI technology shows great benefits to achieve the Euro 6 soot level for the other hybrid platforms. The LCA shows that the PHEVs can achieve 12% reduction of the total CO2 with respect to the FHEVs, and 30% with respect to the no-hybrid diesel platform.

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Comparative analysis of H2-diesel co-combustion in a single cylinder engine and a chassis dynamometer vehicle

Cited by 11 publications

References 35 publications

Investigation of the effects of biofuels on vehicle performance and emissions

Investigation of the effects of biofuels on vehicle performance and emissions

Investigation of the effects of camelina sativa biodiesel and eurodiesel blends on vehicle performance and emissions

Emissions reduction from passenger cars with RCCI plug-in hybrid electric vehicle technology

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