Results 131 to 140 of about 34,413 (314)

Dynamic Analysis of Electrically Assisted Turbocharger Rotor Considering Contact Effects in Nut Structures

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The rotor system of an electrically assisted turbocharger (EAT) is composed of multiple shaft components; The nonlinear connection and contact effects make it difficult to determine the system dynamic characteristics. To improve the modeling accuracy of EAT rotor system and evaluate the influence of contact between multi‐axis components and ...
Wenchao Liang   +5 more
wiley   +1 more source

Hydrogen-diesel and ammonia-diesel as fuels for future diesel engines

open access: yesPojazdy Szynowe
The search for fossil fuels substitutes has led to the increased use of carbon-free fuels. These include ammonia and hydrogen. However, independent combustion of these fuels is quite troublesome due to their physicochemical properties or requiring ...
Ireneusz Pielecha
doaj   +1 more source

The changes of burning efficiency emission and power output of a diesel engine fueled by bioethanol – biodiesel-diesel oil mixtures [PDF]

open access: yes, 2006
The environmental pollution and the decrease of the oil based fuels are the greatest problems of the automotive-industry at the start of the 21st century.
Zöldy, Máté
core  

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Advancing Circular Strategies in Photovoltaics: Assessing Reuse Readiness Across Technical, Economic, and Environmental Dimensions in a Case Study

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
This study examines the reuse readiness of photovoltaic modules through the Swiss PV Circle project. Results confirm technical feasibility with cost savings from targeted preselection, whereas economic viability depends on module age, testing, and market conditions.
Roger Nyffenegger   +6 more
wiley   +1 more source

Effect of fuel injection parameters on the performance & emissions of biodiesel based CI engine-A review

open access: yesResults in Engineering
The rapid depletion of petroleum reserves due to rising fuel consumption highlights the need for alternative energy sources. Research shows that biodiesel is a viable substitute for modern (combustion engine) CI engines, with properties like pure diesel.
Md Modassir Khan   +4 more
doaj   +1 more source

NOx Prediction Based on Cylinder Pressure Measurement for Engine Emission Monitoring [PDF]

open access: yes, 2011
Meeting European NOx emission standards is one of the biggest challenges facing automotive industries. The available technologies to measure NOx emission are dependent on measurement of different NOx species.
Gu, Fengshou   +4 more
core  

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