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Public perceptions of geothermal projects: New ways of measuring and monitoring local acceptance and social impacts

open access: yesEuropean Geologist, 2022
For a successful energy transition, deployment of renewable energy sources like geothermal and others is a fundamental step towards a sustainable power and heat production.
Jan Hildebrand   +3 more
doaj   +1 more source

Integration and optimization of electrified LNG steam reforming hydrogen production system

open access: yesYou-qi chuyun, 2023
The global demand for clean hydrogen energy is constantly increasing. However, the methane steam reforming process cannot satisfy the future social demand for clean hydrogen energy due to its high emission, while the development of water electrolysis ...
Huchao SONG   +5 more
doaj   +1 more source

Fatigue Strength Analysis of a Prototype Francis Turbine in a Multilevel Lifetime Assessment Procedure Part III: Instrumentation and Prototype Site Measurement

open access: yesEnergies, 2023
Part I of this series of publications addressed the background and fundamentals of the lifetime assessment of prototype Francis turbines. Part II concentrated on the developed methods of numerical calculation and assessment procedures.
Eduard Doujak   +6 more
doaj   +1 more source

Fatigue Strength Analysis of a Prototype Francis Turbine in a Multilevel Lifetime Assessment Procedure Part I: Background, Theory and Assessment Procedure Development

open access: yesEnergies, 2022
Electricity generation is becoming increasingly flexible in Europe these days. Due to the integration of new renewable energy sources like wind and photovoltaic, other conventional resources, such as hydropower, operate within a brought range around ...
Eduard Doujak   +7 more
doaj   +1 more source

Fatigue Strength Analysis of a Prototype Francis Turbine in a Multilevel Lifetime Assessment Procedure Part II: Method Application and Numerical Investigation

open access: yesEnergies, 2022
Part I of the publication series addressed the fundamentals of lifetime assessment of prototype Francis turbines. This paper (Part II) focuses on the numerical part of the procedure.
Eduard Doujak   +6 more
doaj   +1 more source

A comparative study on the reducing flow rate design method for a desalination energy recovery pump as turbine [PDF]

open access: yes, 2021
The energy recovery and utilization of high-pressure brine are the key to reduce the cost. Reducing flow rate method (RFM) was put forward firstly to adapt pump as turbine (PAT) to a wide range of operating conditions in this paper.
van Esch, Bart P.M.   +6 more
core   +1 more source

An Experimental Study on the Combustion Characteristics of a Methane Diffusion Flame within a Confined Space under Sub-Atmospheric Pressure

open access: yesApplied Sciences, 2023
Gas-fired boilers, gas stoves, and wall-mounted gas boilers are the main consumers of gas fuel, but they generally encounter problems when operating at high altitudes, such as reduced thermal efficiency and increased pollutant emissions. Previous studies
Jingkun Zhang   +6 more
doaj   +1 more source

Achieving 12.0% Solar-to-Hydrogen Efficiency with a Trimetallic-Layer-Protected and Catalyzed Silicon Photoanode Coupled with an Inexpensive Silicon Solar Cell

open access: yesEngineering, 2023
n-Type silicon (n-Si), with surface easily oxidized and passivated in an aqueous electrolyte, has suffered from sluggish oxygen evolution reaction (OER) kinetics for photoelectrochemical (PEC) water splitting.
Lingyun He   +7 more
doaj   +1 more source

The effect of blade slots on flow behaviour in a fan impeller [PDF]

open access: yesEPJ Web of Conferences, 2019
The use of blade slots is one of the passive methods of controlling flow in a fan impeller. Numerical CFD analyses indicate a possibility of controlling the point of flow separation in the inter-blade space depending on various configurations of the ...
Pieruszka Adam   +5 more
doaj   +1 more source

Energy Storage Technologies for Smoothing Power Fluctuations in Marine Current Turbines [PDF]

open access: yes, 2012
With regard to marine renewable energies, significant electrical power can be extracted from marine tidal current. However, the power harnessed by a marine current turbine varies due to the periodicity of the tidal phenomenon and could be highly ...
CHARPENTIER, Jean-Frederic   +11 more
core   +1 more source

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