Results 121 to 130 of about 61,264 (311)

Wastewater treatment and circulation in thermal power plants [PDF]

open access: yesJournal of Research and Innovation for Sustainable Society
Wastewater from thermal power plants comes from cooling and energy production processes. In thermal power plants, water is used to cool the plants and turbines, a process in which it heats up.
Letitia Violeta Ghimiși
doaj  

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer   +4 more
wiley   +1 more source

Exergy optimisation for cascaded thermal storage [PDF]

open access: yes
Cascaded thermal storage, consisting of multiple Phase Change Materials (PCMs) with different melting temperatures, has been proposed to solve the problem of poor heat transfer caused by unavoidable decrease of temperature differences during heat ...
Lapkin, Alexei   +2 more
core  

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad   +6 more
wiley   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

Desert Power: The Economics of Solar Thermal Electricity for Europe, North Africa, and the Middle East

open access: yes
A climate crisis is inevitable unless developing countries limit carbon emissions from the power sector in the near future. This will happen only if the costs of lowcarbon power production become competitive with fossil fuel power.
David Wheeler, Kevin Ummel
core  

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Theoretical Economic Potential of the Spanisch Premium Tariff for Solar Thermal Power Plants

open access: yes, 2008
The Spanish Royal Decree 661/2007 for the regulation of renewable energy allows the plant operators - beside a flat-rate price - to participate directly on the electricity market. This option is called the premium tariff (PT). The motivation of the PT is
Pitz-Paal, Robert   +3 more
core  

Efficiency of Modern Power Plants of Thermal Power Stations

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2007
The paper considers efficiency and prospects in development of different types of fossil-fuel power plants – gas turbine, steam turbine and combined (gas and steam) cycles.The paper provides information on plant selection, fuel consumption, specific ...
B. V. Yakovlev, A. S. Grinchuk
doaj  

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