Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"BSFC"”.
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Computer control of engine-transmission system for improving fuel economy
… line of minimum brake specific fuel consumption (BSFC).
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Effect of start injection toward combustion, performances and emision characteristic of B20 biodiesel fuel
… BT (0.3%), BTE (1.44%), increase of BSFC (up to 3.75%) in comparison with B10 fuels at 2400rpm engine speed. Advancing 1°CA BTDC of SOI strategy in B20 fuel is recommended, where observed an improvement of approximately 3.32% (BTE), 3.23% (BSFC) has been recorded. However, advancing …
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Feasibility study of hydrostatic transmissions for automobile applications
… velocity, pump and motor efficiencies, engine bsfc, and fuel economy. Observations from the simulations indicate that the test vehicle is capable of exceeding the EPA highway fuel economy estimates for the 1978 production Pinto by 11%. This increase in economy is a result of operating the …
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Effects of split injection and exhaust gas recirculation strategies on combustion and emissions characteristics in a modern V6 diesel engine
… increased from 16.5 to 19.1% and 17.1 to 19.7%, BSFC decreased by 13.5% and 13.2%, smoke level decreased by 74.3% and 70.1% and NOx emissions increased by 69.6% and 68.0%, respectively for a short (5 CAD) and a long (40 CAD) dwell period. In addition, the study of a variation of pilot fuel …
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Performances of a Spark Ignition (SI) engine fuelled with Liquefied Petroleum Gas (LPG) using Liquid Sequential Injection (LSI) technique
… 3% to 7%. The brake specific fuel consumption (BSFC) of LPG at low engine speed (1500rpm to 2500rpm) was reduced in the range from 21% to 52%. Meanwhile, at higher engine speed (3000rpm to 4000rpm) the LPG BSFC increased in average between of 3% to 57%. The carbon monoxide (CO) exhaust emission …
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In situ control of lubricant properties for reduction of power cylinder friction through thermal barrier coating
… and boundary friction power loss. The BsFC and wear rate results are then compared to baseline simulation data for TBC performance metrics. The results show the TBC insulated liner maintains adequate viscosity and film thickness near TDC for wear protection in the ring, while decreasing …
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Development of a Supervisory Control Unit for a Series Plug-in Hybrid Electric Vehicle
… controller to operate at the global minimum BSFC. A power-tracking controller was then developed to minimize powertrain losses. The power-tracking controller substantially reduced the vehicles energy consumption on simulated EPA drive cycles.</p>
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Performance study on the effect of different exhaust length for motorcycle engine
… (BMEP) and brake specific fuel consumption (BSFC) of the engine are discussed as the performance of the engine. Besides that carbon dioxide (CO2), carbon monoxide and hydrocarbon (HC) was discussed as the emissions of the engine. The performance test was conducted to investigate the different …
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Predicting the behavior of a lean-burn hydrogen-enhanced engine concept
… emissions and brake specific fuel consumption (BSFC) maps along with the cumulative NOx emissions and fuel economy for the urban
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A finite element approach for the implementation of magnetostrictive material terfenol-D in automotive CNG fuel injection actuation
… fuel injector considering standard horsepower, BSFC and injector duty cycle.
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One-dimensional simulation of a retrofitted medium duty engine running using compressed natural gas
… model was able to reduce the fuel consumption (BSFC) and experience lower; brake power (BP), brake torque (BT) and brake thermal efficiency (BTE) by 18.1%, 30.3%, 30.7%, and 14.6% respectively. For emissions results the model generated higher unburned hydrocarbon emissions (HC) and lower; oxides …
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Development, Testing and Calibration of Oxford Brookes V-Twin Engine
… simulation results respectively. Encouraging BSFC (371g/kWh) and thermal efficiency figures (21%) were noted within this operating range, outside of the intended operating speed of such a high valve overlap configuration. The conducted research and development represent a key milestone in the …
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Performance and emissions characteristics of alternative biodiesel fuel on 4-stroke marine diesel engine
… decrease in brake specific fuel consumption (BSFC) has been observed for CPO and JCO fuels comparative to DSL. Meanwhile a contrariwise outcome was obtained for WCO fuels. In conjunction, CPO and JCO promotes lower carbon monoxide (CO) emissions but signified higher nitrogen oxides (NOx), …
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In Cylinder NOx Control Technologies for Marine Diesel Engines
… turbocharger architecture, with only moderate BSFC increase.
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Modelling the scavenging process in a two-stroke I.C. engine
… parameters such as engine torque and power, BSFC, scavenging efficiency and charging efficiency. The model also has the ability to predict the unsteady gas dynamic behaviour in various engine pipes. The instantaneous pressure fluctuation and mass flow rates at inlet port, transfer port and …
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Exergy Based SI Engine Model Optimisation. Exergy Based Simulation and Modelling of Bi-fuel SI Engine for Optimisation of Equivalence Ratio and Ignition Time Using Artificial Neural Network (ANN) Emulation and Particle Swarm Optimisation (PSO).
… power (BP), brake specific fuel consumption (BSFC), brake mean effective pressure (BMEP), concentration of CO2, brake specific CO (BSCO) and brake specific NOx (BSNOx). In this model, the effect of engine speed, equivalence ratio and ignition time on performance parameters using gasoline and …
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Performance and emission characteristics of an automotive diesel engine using biodiesel fuel with the influence of air intake variables
… with RME produces lower power and higher bsfc due to low energy content of RME as compared to ULSD. The emissions of NOx are slightly higher, but lower CO and HC are produced. The pressure drop along the AIS has significantly affected the performance as well as emissions of the engine. The …
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Výfukové potrubí pro motor o objemu 600 ccm
V této bakalářské práci se zabývám vlivem výfukových tlumičů na parametry motoru motocyklu Yamaha FZ6 Fazer. Zaměřuji se především na efektivní výkon, točivý moment, objemovou plnící účinnost, střední efektivní tlak a měrnou spotřebu paliva. Tyto hodnoty budu jsem získal ze simulací v příslušném …