Results 251 to 260 of about 1,314,203 (312)

Laminar Airflow in Penile Prosthesis Surgery and Infection: An Empty Systematic Review. [PDF]

Cureus
Shafiq MU, Bhowmik P, Yallappa S, Hussain M, Ahmad M.   +4 more
europepmc   +1 more source

Global health burdens of plastics: a lifecycle assessment model from 2016 to 2040.

Lancet Planet Health
Deeney M, Hamelin L, Vialle C, Yan X, Green R, Yates J, Kadiyala S.   +6 more
europepmc   +1 more source

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Gas Turbine Secondary Air Systems Modeling

Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, 2022
Abstract Modern gas turbine engine designers are challenged with aggressive power, cycle efficiency and operational life requirements. Those targets are directly related with turbine inlet temperature, material selection and design choices.
Mustafa Kocagul, A. Cihat Arıkan, Omer Uyav, Avni Ertas, James Bruns, Aditya Jayanthi   +5 more
openaire   +1 more source

Secondary Air System: A Current Review and Future Investigations

Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, 2022
Abstract Since every new scientific work starts with a comprehensive literature study about the state of the art, this paper should give an overview about previous, but still useful, and more recent publications to describe a secondary air system (SAS) for gas turbines.
Fuchs, Fabian, Cordes, Laura
openaire   +2 more sources

Innovative Secondary Air Injection Systems

SAE Technical Paper Series, 2001
<div class="htmlview paragraph">For years, secondary air injection Systems have been used to reduce hydrocarbon exhaust emissions for a short period after engine cold start. In the beginning, passive secondary air systems were used, with the airflow driven by the pressure pulsations in the exhaust system. Since 1990, for most applications, active
Michael W. Kochs, Martin Kloda, Guenter van de Venne, John E. Golden   +3 more
openaire   +1 more source

Secondary Air Charger - High Integrated Secondary Air System for Intake Manifolds

SAE Technical Paper Series, 2001
<div class="htmlview paragraph">Increasing population and a rising necessity for mobility and transportation require a growing environment protection. In the USA and in Europe legislative concluded new emission limits to reduce cold start emissions for passenger cars.</div> <div class="htmlview paragraph">An effective method to reduce
Karl-Ernst Hummel, Stephan Wild
openaire   +1 more source

Discharge Coefficients of a Pre-Swirl System in Secondary Air Systems

Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, 2001
The discharge behaviour of a “direct-transfer” pre-swirl system has been investigated experimentally. The influences of the pressure ratio and the swirl ratio as well as the influence of the receiver and stator geometry were investigated. The discharge coefficients of the pre-swirl nozzles are given in the absolute frame of reference. The definition of
Dittmann, Mario, Geis, Torsten, Schramm, Volker, Kim, Soksik, Wittig, Sigmar   +4 more
openaire   +1 more source

Secondary Air System Component Modeling for Engine Performance Simulations

Journal of Engineering for Gas Turbines and Power, 2008
Abstract This paper describes the modeling of typical secondary air system elements such as rotating orifices, seals, and flow passages with heat and work transfer from the surrounding surfaces. The modeling is carried out in an object-oriented simulation environment that allows the creation of different configurations in a simple and ...
A. Alexiou, K. Mathioudakis
openaire   +1 more source