Angebote zu "Zero-Emissions" (22 Treffer)

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Model Assisted Survey Sampling
85,01 € *
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The book covers the various approaches to modeling the in-cylinder processes such as mixture formation, combustion and formation of exhaust emissions in diesel and gasoline engines. Due to their complexity emphasis is put on multi-dimensional spray, combustion and emission formation models. However, phenomenological as well as zero-dimensional thermodynamic models, which are still widely used in engine development because of their computational efficiency, are addressed as well. Example calculations of each model type are compared with corresponding experimental data ¿ represented in diagrams as well as in images resulting from modern optical measuring techniques ¿ in order to discuss the capabilities of today's simulation models as well as the shortcomings that still exist either because of oversimplifying assumptions or because of insufficient knowledge of the real processes. The reader will be provided with an overview of the most important simulation models describing the in-cylinder processes of internal combustion engines. In addition, suggestions are made about which modeling approach is appropriate for a specific type of problem.Now available in paperback, this book provides a comprehensive account of survey sampling theory and methodology suitable for students and researchers across a variety of disciplines. It shows how statistical modeling is a vital component of the sampling process and in the choice of estimation technique. The first textbook that systematically extends traditional sampling theory with the aid of a modern model assisted outlook. Covers classical topics as well as areas where significant new developments have taken place.

Anbieter: buecher
Stand: 15.08.2020
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Model Assisted Survey Sampling
85,01 € *
ggf. zzgl. Versand

The book covers the various approaches to modeling the in-cylinder processes such as mixture formation, combustion and formation of exhaust emissions in diesel and gasoline engines. Due to their complexity emphasis is put on multi-dimensional spray, combustion and emission formation models. However, phenomenological as well as zero-dimensional thermodynamic models, which are still widely used in engine development because of their computational efficiency, are addressed as well. Example calculations of each model type are compared with corresponding experimental data ¿ represented in diagrams as well as in images resulting from modern optical measuring techniques ¿ in order to discuss the capabilities of today's simulation models as well as the shortcomings that still exist either because of oversimplifying assumptions or because of insufficient knowledge of the real processes. The reader will be provided with an overview of the most important simulation models describing the in-cylinder processes of internal combustion engines. In addition, suggestions are made about which modeling approach is appropriate for a specific type of problem.Now available in paperback, this book provides a comprehensive account of survey sampling theory and methodology suitable for students and researchers across a variety of disciplines. It shows how statistical modeling is a vital component of the sampling process and in the choice of estimation technique. The first textbook that systematically extends traditional sampling theory with the aid of a modern model assisted outlook. Covers classical topics as well as areas where significant new developments have taken place.

Anbieter: buecher
Stand: 15.08.2020
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Zero-Carbon City
34,00 € *
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High Quality Content by WIKIPEDIA articles! A zero-carbon city is a settlement powered exclusively by renewable energy sources. To become a zero carbon city, an established modern city must collectively reduce emissions of greenhouse gases to zero and all practices that emit greenhouse gases must cease. Also, renewable energy must supersede other non-renewable energy sources and become the sole source of energy, so a zero-carbon city is a renewable-energy-economy city. This transition which includes decarbonising electricity (increasing the importance of the sources of renewable electricity) and zero-emission transport, is undertaken as a response to climate change and peak oil.

Anbieter: Dodax
Stand: 15.08.2020
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Modeling and Control of Raw Emissions of a Dies...
48,80 € *
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A real-time capable in-cylinder pressure based diesel engine-out PM estimator has been developed. Using the ECU signals and in-cylinder pressure data new variables have been derived and used as inputs for an exponential zero dimensional modeling approach. This approach required little computational effort making the ECU capable of cycle based PM emissions calculation, significantly faster than in real-time. Along with the PM estimator an accurate NOx emissions model has been utilized in a MIMO feedback controller motivated by the gain scheduling concept. Two types of experimental passenger car DI diesel engines, equipped with in-cylinder pressure sensors have been used. Measurements have been taken during steady state and transient operation on engine test benches for development work. Implementation of the emission models and the controller has been done on a test vehicle and tests were carried out on the test track and vehicle test bench. Good correlation between the estimated and measured PM has been achieved for various experiments, not only at steady state operation but also for transient states. Particularly, the model delivers good qualitative results in general, as well as good quantitative results in some regions. PM emission gradients between operating points are represented successfully. The raw emissions controller – despite further need for optimization – has been successful in controlling PM and NOx emissions simultaneously over EGR and pilot injection quantity. Gain scheduling has eliminated the need for an inverse combustion model. EGR and injector actuators were manipulated in a cascaded controller structure where the designed PI controllers altered reference values of the actual EGR and pilot injection quantity controllers that were already present in the system.

Anbieter: Dodax
Stand: 15.08.2020
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BATNEEC Analysis of Solid Waste Disposal in Nig...
32,90 € *
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Best Available Technology Not Entailing Excessive Costs (BATNEEC) is a sustainable waste management system that effectively analyses series of methodologies, Best Practicable Environmental Options (BPEO) and their impacts as applicable in solid waste management within the environment to reducing cost, fossil fuels and greenhouse gas emissions as the key performance indicators, in line to ensuring global sustainability of Zero waste tolerance. It's generally known in most developed nations such as EU with recent regulations and practices has given preferences on preventive measures to reduce waste volumes through different processes of management. Similarly, revers is the case when compared with the developing nations. As this research had reveled vast resources through waste disposals yet on taped from Nigerian waste sector, vis-a-vis the sequential quantifications of Nigerian carbon footprint in GHG emission of CO2 and CH4 equivalent in tons.

Anbieter: Dodax
Stand: 15.08.2020
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Toyota Prius
45,00 € *
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Toyota Prius. Hybrid electric vehicle, Toyota, United States Environmental Protection Agency, Super Ultra Low Emission Vehicle, Power steering, Partial zero- emissions vehicle, Electronic key, Electronic stability control, Intelligent Parking Assist System, Hybrid Synergy Drive, Motor Trend Car of the Year

Anbieter: Dodax
Stand: 15.08.2020
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Partial Zero-Emissions Vehicle
39,00 € *
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A Partial Zero Emissions Vehicle is a vehicle that has zero evaporative emissions from its fuel system, has a 15 year (or at least 150,000 mile) warranty and meets SULEV tailpipe emission standards.PZEVs have their own administrative category within the state of California for low emission vehicles.This vehicle category was created as part of a bargain with the California Air Resources Board (CARB), so that the automobile manufacturers could postpone producing mandated zero emission vehicles (ZEVs), which will require the production of electric vehicles or hydrogen fuel cell vehicles.

Anbieter: Dodax
Stand: 15.08.2020
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Hydrogen and diesel combustion
49,00 € *
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The important motivations for exploring alternative fuel resources are energy security and air pollution, problems that are collectively calling into question the fundamental sustainability of the current energy system.Hydrogen-fuelled engines with near-zero emissions are a potential near-term option and a bridge to hydrogen fuel cell vehicles.With emission legislations getting more stringent,research studies have definitely established the advantages of extremely clean burning characteristics of hydrogen as a dual fuel in engines.But that said,the premium of using hydrogen as a green energy carrier needs to be augmented with studies on its potential to satisfy conventional engine combustion characteristics for ready deployment.In this present study, the performance and combustion analysis were carried out on an existing direct injection diesel engine at various load steppings using hydrogen inducted at different injection timings and injection durations.The findings of the study cater to its audience interested to employ such uses in practical diesel engines and also to those chartering a course of pursuance in the context of reducing emission from existing combustion engines.

Anbieter: Dodax
Stand: 15.08.2020
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Reforming pyrolysis oil into clean green transp...
35,90 € *
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BIOFUEL SUSTAINABILITY: There has been a higher decline in the easily available fossil fuels and as well, with their availability, there is serious concern about the carbon dioxide and nitrogen dioxide emissions any time such fuels are burnt. Carbon dioxide poses serious threat to the atmospheric environment and can lead to global warming and, nitrogen dioxide emission can lead to acidic rain which is detrimental to the natural environment and can as well involve in stratospheric ozone reactions and lead to climate change. Biomass is indeed considered as the most promising resource since it is very abundant and sustainable. Biomass can therefore be used to produce environmental friendly liquid fuel via a number of technological processes such as pyrolysis. Biomass derived fuels when burnt produces zero or negative carbon dioxide emissions due to the fact that the plants utilizes carbon dioxide during the photosynthesis process. This book therefore outlines the steps involved in producing clean green transport fuel from biomass(wood pellets) by pyrolysis and how the pyrolysis oil is upgraded via catalytic hydrothermal treatment.

Anbieter: Dodax
Stand: 15.08.2020
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