Results 51 to 60 of about 2,751,308 (294)

Optimized Design of Hot Water Storage in Solar Thermal Cooling Facilities [PDF]

open access: yes, 2008
Solar thermal installations can provide a significant contribution to the energy needs of cooling demand of single family buildings. Unfortunately oversizing facility elements is not uncommon. Most of the design flaws concern collector field or auxiliary
Rodríguez, María del Carmen   +4 more
core   +1 more source

Dynamically Coupled Operation of Two-Tank Indirect TES and Steam Generation System

open access: yesEnergies, 2019
A thermal energy storage system is a critical component in concentrating solar power plants (CSPP), owing to which concentrating solar power (CSP) has superiorities over photovoltaic and wind power. Currently, the sole thermal energy storage (TES) system
Xiaolei Li   +5 more
doaj   +1 more source

Labeling of Installed Heating Appliances in Residential Buildings: An Energy Labeling Methodology for Improving Consumers’ Awareness

open access: yesEnergies, 2021
In the EU 28, the installed heating appliance stock is quite old, with an actual replacement rate of 4%. This is directly reflected in the average efficiency of the installed heating systems, where around 60% of the stock is rated with an energy class of
Diego Menegon   +3 more
doaj   +1 more source

Discovery of Energy‐Localized Trap States via Opto‐Electrical Spectroscopy in UWBG Perovskite La:SrSnO3 FETs

open access: yesAdvanced Functional Materials, EarlyView.
Combined UV–vis transmittance and wavelength‐dependent photo‐assisted DC I–V analyses reveal defect‐induced optical instability and a high density of deep donor‐like subgap traps in La‐doped SrSnO3. The resulting MOSFET achieves one of the highest on/off ratios reported for ABO3 perovskite devices, demonstrating the promise of stannate perovskites as ...
Sojin Jung   +17 more
wiley   +1 more source

Zeolite NaY-Copper Composites Produced by Sintering Processes for Adsorption Heat Transformation—Technology, Structure and Performance

open access: yesEnergies, 2021
In adsorption heat pumps, the adsorbent is typically combined with heat conducting structures in order to ensure high power output. A new approach for the direct integration of zeolite granules into a copper structure made of short copper fibers is ...
Andreas Velte   +4 more
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

open access: yesAdvanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li   +9 more
wiley   +1 more source

Aerosol impact on concentrating solar systems: Lessons learned from the Plataforma solar de Almería (Spain)

open access: yesInternational Journal of Electrical Power & Energy Systems
The Plataforma Solar de Almería (PSA) is a unique scientific-technical center in the southeast of Spain thanks to its solar concentrating facilities that are large and varied.
Jesús Ballestrín   +5 more
doaj   +1 more source

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

open access: yesAdvanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie   +13 more
wiley   +1 more source

Ag/Cu plating to improve Ag grid electrodes of the recycled c-Si solar cells

open access: yesInternational Journal of Electrochemical Science, 2020
More and more crystalline silicon (c-Si) solar cells, which are dominating the photovoltaic (PV) application, will be decommissioned after the service term due to the performance degradation.
LibinMo   +5 more
doaj   +1 more source

Techno-economic evaluation of electricity price-driven heat production of a river water heat pump in a German district heating system

open access: yesInternational Journal of Sustainable Energy Planning and Management, 2021
Large scale heat pumps (HP) are an important technology that will link district heating (DH) systems to the electricity sector in future smart energy systems.
Ulrich Trabert   +6 more
doaj   +1 more source

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