Results 31 to 40 of about 5,265 (262)

ESTIMATION OF EFFICIENCY OF DEEP AIR COOLING AT THE INLET OF GTU BY WASTE HEAT RECOVERY CHILLER

Авіаційно-космічна техніка та технологія, 2019
Significant fluctuations in the current temperature and relative humidity of the ambient air lead to significant changes in the heat load on the air cooling system at the inlet of the gas turbine unit, which urgently poses the problem of choosing their ...
Андрій Миколайович Радченко, Богдан Сергійович Портной, Сергій Анатолійович Кантор, Ігор Петрович Єсін   +3 more
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

SIMULATION OF COOLING AIR PROCESSES BY ABSORPTION LITHIUM-BROMIDE CHILLER WITH USING A SURPLUS REFRIGERATION CAPACITY IN BUSTER AIR COOLER

Радіоелектронні і комп'ютерні системи, 2019
The heat-humidity processes of gas turbine unit intake air cooling to the temperature of above 15 °C with the use of a cold water at the temperature of about 10 °C as a coolant and the absorption lithium-bromide chiller utilizing the turbine exhaust gas ...
Андрій Миколайович Радченко, Андрій Миколайович Радченко, Сергій Анатолійович Кантор, Богдан Сергійович Портной, Олександр Ігорович Прядко   +4 more
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Porosity-driven aerothermal-mechanical coupling for high-performance transpiration-cooled turbine blades

Case Studies in Thermal Engineering
The increasing turbine inlet temperature, driven by demands for higher gas turbine efficiency, necessitates more advanced cooling solutions for turbine blades.
Xinzhu Mou, Jiazheng Fan, Jingyang Zhang, Penghao Duan   +3 more
doaj   +1 more source

Cooling Of Steam Turbines

NTU "KhPI" Bulletin: Power and heat engineering processes and equipment, 2015
Викладено основні принципи охолодження високотемпературних парових турбін та конструкційні рішення, закладені при створенні першої в світі охолоджуваної парової турбіни СКР-100 (Р-100-300), а також деякі результати її експлуатації i висновки з них. Ця турбіна потужністю 100 МВт з початковими параметрами пари близько 30 МПа, 650 С та протитиском 3 МПа,
openaire   +2 more sources

Recent Studies in Turbine Blade Cooling? [PDF]

The International Journal of Rotating Machinery, 2004
Gas turbines are used extensively for aircraft propulsion, land‐based power generation, and industrial applications. Developments in turbine cooling technology play a critical role in increasing the thermal efficiency and power output of advanced gas turbines.
openaire   +3 more sources

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Numerical simulation on air-cooled quenching process of FGH96 superalloy turbine disks

Cailiao gongcheng
The cooling process following solution heat treatment significantly influences the microstructure and mechanical properties of powder metallurgy superalloy turbine disks.
WANG Yu, WANG Mingli, LIU Yufeng, KONG Lingwei, GAO Shengdong   +4 more
doaj   +1 more source