Results 31 to 40 of about 54,465 (260)

Development of a framework for thermoeconomic optimization of simple and combined gas-turbine cycles [PDF]

open access: yes, 2012
The problem consists of selecting simple and combined gas-turbine cycles with high thermal e±ciency and low capital cost is the subject of this study.
Aref, Pooneh
core  

Development and validation of a simulator for wireless data acquisition in gas turbine engine testing [PDF]

open access: yes, 2013
Owing to its cable-free deployment, wireless sensor networks (WSNs) have drawn great attention as a new technique for industrial data acquisition. However, the harsh environment of the gas turbine engine provides a number of challenges to deployment of ...
Atkinson, Robert   +21 more
core   +1 more source

The Gas Turbine

open access: yesJournal of the Fuel Society of Japan, 1951
ガスターピンは歐洲及び米国に於いては既に実用の段階に達し, 今後釜々広く使用される傾向にある。鉄道技術研究所に於いてはこの情勢に着目して昭和22年よりガスタービンの研究に着手し, ガスタービンの各構成部分に就ての実験装置及び綜合的な運転試験の装置をつくり研究を行つた。運転試験の結果から, 定格運転に於いて効率11%, 出力2, 150HPという大略計算値に近い値に達し得る事が認められる。又この運転中に次の諸点に故障が起り夫々改良が加えられた。 (イ) 燃料噴射弁の閉塞,(口) 燃料予熱管の焼損,(ハ) 燃焼管内筒の焼損,(ニ) 姶動用点火栓の燵損,(ホ) 燃燒管外筒の赤熱,(へ) タービン翼の破断。各構成部分の実験の中微粉炭燃燒装置に依る実験は, 石炭の種類, 空燃比 ...
openaire   +3 more sources

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

open access: yesAdvanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang   +4 more
wiley   +1 more source

Cascade Testing and CFD Applied to Gas Turbine Performance Improvement with Compressor Cleaning [PDF]

open access: yes, 2010
With the growing interest in life cycle costs for heavy-duty gas turbines, equipment operators are investigating the trade off between performance improvements and associated maintenance costs. One of the key factors leading to performance degradation
Gannan, Aiad
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Techno-environmental assessment of marine gas turbines for the propulsion of merchant ships [PDF]

open access: yes, 2011
This research study seeks to evaluate the techno-economic and environmental implications of a variety of aero-derivative marine gas turbine cycles that have been modelled for the propulsion of different types of merchant ships.
Bonet, Mathias Usman
core  

Combination of DOM with LES in a gas turbine combustor [PDF]

open access: yes, 2005
A three-dimensional numerical study is conducted to investigate the radiative heat transfer in a model gas turbine combustor. The Discrete Ordinates Method (DOM/Sn) has been implemented to solve the filtered Radiative Transfer Equation (RTE) for the ...
Jones, W.P., Paul, M.C.
core   +1 more source

Additively Manufactured Porous Ceramics as Tunable Dielectrics for Passive Temperature Sensing

open access: yesAdvanced Materials Technologies, EarlyView.
Porous ceramic lattices, 3D‐printed from a multicomponent oxide ink, are integrated with LC resonators for passive wireless temperature sensing. By tuning porosity, the dielectric properties and RF response are engineered to produce distinct resonant frequency shifts with temperature. The results establish a structure‐driven approach to customizing the
Sogol Heidarishahrivar   +5 more
wiley   +1 more source

Degradation of Environmental Protection Coatings for Gas Turbine Materials [PDF]

open access: yes, 2008
Nowadays, problems of component materials reliability in gas and oil-fired gas turbines focus on assessing the potential behaviour of commonly employed coatings, in order to avoid expensive and unpredictable failure in service and producing new materials
Nalin, Laura
core  

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