Results 51 to 60 of about 1,553 (163)

DIFFERENTIAL DIAGNOSTICS OF GAS-TURBINE UNITSBY THEIR MAIN COMPONENTS

Известия высших учебных заведений: Нефть и газ, 2016
The dependences were obtained which enable to determine the values of the performance factors of gas- turbine units such as gas turbines and axial-flow compressors. The results of testing of the received relations applicability for practical calculations
S. I. Perevoschikov
doaj   +1 more source

Integer programming for optimal yaw control of wind farms [PDF]

Wind Energy Science
It is well-known that wakes caused by wind turbines within a wind farm negatively impact the power generation and mechanical load of downstream turbines. This is already partially considered in the farm layout.
F. Bestehorn, F. Bestehorn, F. Bürgel, C. Kirches, S. Stiller, A. M. Tillmann, A. M. Tillmann   +6 more
doaj   +1 more source

Multidisciplinary optimization of an axial turbine

IOP Conference Series: Earth and Environmental Science
Abstract The results of three different optimization setups for an axial propeller turbine consisting of a guide vane, a runner and a draft tube are presented. The first setup only contains the efficiency as objective and the design head as a constraint. In the second setup, the minimization of the cavitation volume is added as a further
S Fraas, A Tismer, S Riedelbauch
openaire   +1 more source

Simulation of the Multi-Wake Evolution of Two Sandia National Labs/National Rotor Testbed Turbines Operating in a Tandem Layout

Energies
The future of wind power systems deployment is in the form of wind farms comprised of scores of such large turbines, most likely at offshore locations. Individual turbines have grown in span from a few tens of meters to today’s large turbines with rotor ...
Apurva Baruah, Fernando Ponta, Alayna Farrell   +2 more
doaj   +1 more source

Axial Turbine Cascade Correlation

Applied Sciences, 2016
The performance simulation of an axial turbine is achieved in a simple way from the calculation of velocity diagrams. For this purpose, a reliable loss model is needed for the flow through each stationary or rotating axial blade cascade. A loss coefficient assessment is conducted through the establishment of a correlation between the maximum profile ...
openaire   +2 more sources

Computational fluid dynamics calculus and analysis for gas and water turbines

MATEC Web of Conferences, 2018
The paper presents the utilization of Computational Fluid Dynamics for calculating the flow through turbines. The first and most extended part of the paper is focused on gas turbines where the simulations are very precise and can be successfully used ...
Vilag Valeriu, Zheleva Ivanka, Popescu Jenia, Tujarov Krasimir   +3 more
doaj   +1 more source

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF SMALL AXIAL TURBINES

TASK Quarterly, 2010
The authors conducted a series of experimental studies using a flow tunnel to determine the hydrodynamic characteristics of small axial turbines. The results obtained were confronted with the results obtained from the authors’ own numerical codes based ...
PATRYK CHAJA, ADAM GÓRALCZYK, TADEUSZ KORONOWICZ   +2 more
doaj  

NUMERICAL SIMULATION OF PERFORMANCE OF AN AXIAL TURBINE FIRST STAGE DOI 10.5028/jatm.2012.04025411

Journal of Aerospace Technology and Management, 2012
This work has presented the first stage performance at design and off-design operating points of an axial turbine, with two stages using a numerical simulation.
Vinícius Guimarães Monteiro, Edson Luiz Zaparoli, Cláudia Regina de Andrade, Rosiane Cristina de Lima   +3 more
doaj  

Improving The Performance Of Gas Turbine Power Plant By Modified Axial Turbine

, 2018
Computer-based optimization techniques can be employed to improve the efficiency of energy conversions processes, including reducing the aerodynamic loss in a thermal power plant turbomachine. In this paper, towards mitigating secondary flow losses, a design optimization workflow is implemented for the casing geometry of a 1.5 stage axial flow turbine ...
Rona, Aldo, Kadhim, Hakim Tarteeb Kadhim, Jabbar, Faris A., Bagdanavicius, Audrius   +3 more
openaire   +2 more sources

DOUBLE-REGULATED VERTICAL AXIAL WATER TURBINE

Journal of Energy Technology
A double-regulated vertical axial water turbine, known as a Saxo turbine, has become a very well-recognised product of the company Litostroj Power, with over 30 commissioned units in the North American market over the previous decade. While this turbine became popular in the North American market due to its compact design, simplified civil construction
Gale, Janez, Höfler, Edvard, Bergant, Anton, Cizelj, Sandi   +3 more
openaire   +2 more sources