Author: Cornelius Patrick O'Sullivan
Publisher:
ISBN:
Category :
Languages : en
Pages : 118

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 246

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A light-duty diesel engine fitted with a common-rail fuel injection system was calibrated on several alternative type test fuels to achieve low engine-out oxides of nitrogen (NOx) exhaust emissions. In conjunction with the Low NOx operating conditions, a Diesel Oxidation Catalyst and a catalyzed Diesel Particulate Filter were sized for the engine and exhaust species characterized. The exhaust was characterized for toxicologically relevant gaseous compounds at engine-out, DOC-out, and DPF-out locations. Exhaust Particulate Matter was characterized for toxicologically relevant compounds at engine-out and DOC-out locations. Known low emitting fuels maintained their low emission characteristics at the Low-NOx operating condition. The emissions of toxicologically relevant compounds were altered by the catalytic surfaces.

Author: Rogers F. Davis
Publisher:
ISBN:
Category : Diesel motor exhaust gas
Languages : en
Pages : 14

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Author: John H. Johnson
Publisher:
ISBN: 9780768010671
Category : Science
Languages : en
Pages : 552

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Following in the tradition of The Invitation and The Dance, The Call is based on an inspirational poem, exploring how to live well and continue to live a life full of integrity, commitment, happiness and passion. Each chapter of the book begins with a line from the poem and explores our ability to open up to the adventure of living.

Author: Luis Manuel Ventura
Publisher:
ISBN:
Category : Science
Languages : en
Pages :

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The use of biodiesel is one of the alternatives to reduce oil dependence in the transport sector and to reduce greenhouse gas emissions. One of the most common engines in Europe was subjected to some tests, aiming to discover the efficiency effects and the emission characteristics when consuming a fuel containing 20% of biodiesel and 80% of diesel (B20), and comparing the results with the use of 100% diesel (B0). Using an engine test bench, several working points of the engine were chosen considering different engine rotation from idle speed to 3500 rpm and from residual torque to 120 Nm, covering the great majority of the normal running operation of this kind of engines when installed in light vehicles. The results revealed a non-proportional effect for fuel consumption for different engine regimes where the energetic differences were, in some operation regimes, totally compensated with efficiency increase. The NOx emission analysis allows to admit that the use of biodiesel in the fuel leads to a consequence on emissions increase that is not always obvious, since in some regimes that increase is noticeable, but for other regimes a slight decrease or no significant change was detected.

Author: Brian Eric Hallgren
Publisher:
ISBN:
Category :
Languages : en
Pages : 144

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Author: William E. Pepelko
Publisher:
ISBN:
Category : Diesel motor exhaust gas
Languages : en
Pages : 596

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Author: Frédéric Tschanz
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Hoseok Song
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Biodiesel has been suggested as an alternative fuel to the petroleum diesel fuel. It beneficially reduces regulated emission gases, but increases NOx (nitric oxide and nitrogen dioxide) Thus, the increase in NOx is the barrier for potential growth of the biodiesel fuel. In general, NOx formation is dominated by flame temperature. Interestingly, soot can play a role as a heat sink as well as a heat transfer media to high temperature gases. Thus, the cooling effect of soot may change the flame temperature and therefore, NOx emissions. In this study, emphasis is placed on the relationship between soot and NO (Nitric oxide) formation. For the experimental study, a metallic fuel additive is used since barium is known to be effective to suppress soot formation during combustion. The barium additive is applied to #2D (Number 2 diesel fuel) by volume basis: 0.1, 0.25 and 0.5 %-v, and to the palm olein oil by 0.25 %-v. All the tests are carried out in a four-cylinder medium duty diesel engine, 4045 DI diesel engine, manufactured by John Deere. For the analysis, an analytical model is used to estimate combustion temperature, NO concentration and soot emissivity. The results show that NO concentration does not have the expected trade-off relation with soot. Rather, NO concentration is found to be more strongly affected by ambient temperature and combustion characteristics than by soot. The results of the analytical model show the reasonable NO estimation and the improvement on temperature calculation. However, the model is not able to explain the detailed changes of soot emissivity by the different fuels since the emissivity correlation is developed empirically for diesel fuel.

Author: National Research Council (U.S.). Diesel Impacts Study Committee. Technology Panel
Publisher: National Academies
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 390

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