Results 271 to 280 of about 2,859,954 (336)

Virtual Gas Turbines Part II: an Automated Whole-Engine Secondary Air System Model Generation

Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, 2021
The design and analysis of the secondary air system (SAS) of gas turbine engine is a complex and time-consuming process because of its complicated geometry topology.
D. Kulkarni, L. Mare
semanticscholar   +1 more source

Regional flow motion and heat energy balance analysis of a 10,000 class pharmaceutical cleanroom with secondary return air conditioning system

International Journal of Refrigeration, 2021
F. Zhao, Jin Cheng, Bao Liu, Zhi-Rong Huang, Yi-Jing Zhang, Xianting Li   +5 more
semanticscholar   +3 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

Design of flow configuration for parallel air-cooled battery thermal management system with secondary vent

International Journal of Heat and Mass Transfer, 2018
Sihui Hong, Zhang Xinqiang, Kai Chen, Shuangfeng Wang   +3 more
semanticscholar   +3 more sources

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 Systems in Aeroengines Employing Vortex Reducers

Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, 2001
A secondary air system in modern aero engines is required to cool the compressor and turbine discs and make sure that no hot gas ingestion occurs into the cavities between the turbine discs, which could cause an inadvertent reduction of disc life. A high integrity solution for guiding the air from the compressor to the turbine is through
Dimitrie Negulescu, Michael Pfitzner
openaire   +1 more source

Probabilistic Analysis of Stationary Gas Turbine Secondary Air Systems

Volume 3: Heat Transfer, Parts A and B, 2006
In this paper probabilistic methods are applied to a 1D flow model of the Secondary Air System (SAS) of an industrial gas turbine. An overview of the methods applied and the results which can be provided by the probabilistic analysis is given. The paper especially deals with the problems that arise from the high number of probabilistic input parameters
Thomas Bischoff, Matthias Voigt, Ed Chehab, Konrad Vogeler   +3 more
openaire   +1 more source

Optimizing supply airflow and its distribution between primary and secondary air in a forced-draft biomass pellet stove.

Environmental Research, 2020
Forced-draft biomass stoves improve the pollutant emission performance of biomass combustion. The parameters of supply airflow and its distribution between primary air (PA) and secondary air (SA) have a significant effect on the performance of this stove
Mengsi Deng, Pengchao Li, M. Shan, Xudong Yang   +3 more
semanticscholar   +1 more source

Carbon/air secondary battery system and demonstration of its charge-discharge

Journal of Power Sources, 2021
Abstract H2/H2O-power-to-gas-to-power (H2/H2O–P2G2P) systems that produce H2 by water electrolysis and generate electricity from this H2 are promising large-capacity electric energy storage systems for the extensive installation of renewable energy sources.
Keisuke Kameda, Sergei Manzhos, Manabu Ihara   +2 more
openaire   +1 more source

Loss Prediction for Rotating Passages in Secondary Air Systems

Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, 1997
Modern heavy duty gas turbines operate with high turbine inlet temperatures, and thus require a complex secondary air system to ensure that the blades and vanes are supplied with the required amount of cooling air. Gas turbines with high thermal efficiency and with low emissions require minimum amounts of cooling and sealing air which means that the ...
Reichert, Arnd Wolfram, Brillert, Dieter, Simon, Heribert   +2 more
openaire   +1 more source