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Mostrando ítems 411-420 de 446
Artículo
Experimental and numerical study on a freeze protection system for flat-plate solar collectors with silicone peroxide tubes
(Elsevier, 2018-05)
The freeze protection is essential in the majority of solar thermal installations to prevent breakage of solar thermal collectors. Therefore, there are different methods of protection against freezing of flat plate solar ...
Artículo
Study of the use of biogas as an energy vector for microgrids
(Elsevier, 2024-08)
The review presents the current state of the issue about the structural features of microgrids as potential structural elements of energy networks. By analyzing literature data, microgrids incorporating biogas were ...
Artículo
A Review of the Use of Hydrogen in Compression Ignition Engines with Dual-Fuel Technology and Techniques for Reducing NOx Emissions
(MDPI, 2024)
The use of compression ignition engines (CIEs) is associated with increased greenhouse gas emissions. It is therefore necessary to research sustainable solutions and reduce the negative environmental impact of these ...
Artículo
Energy Hybridization with Combined Heat and Power Technologies in Supercritical Water Gasification Processes
(MDPI, 2022-06)
Supercritical water gasification (SCWG) has been shown to be an effective technology to valorize a wide range of organic waste by transforming them into gases with high energy potential, such as hydrogen and methane. ...
Artículo
A Holistic Methodology to Quantify Product Competitiveness and Define Innovation Requirements for Micro Gas Turbine Systems in Hydrogen-Based Energy Storage Applications
(The American Society of Mechanical Engineers (ASME), 2024-08-01)
Micro gas turbines are an on-site power and heat generation technology with a small footprint, low gaseous (NOx) and acoustic emissions, low maintenance and high-grade heat. They entered the market at the dawn of the ...
Artículo
Analysis of indirect power cycles for a novel methanol-to-methane TCES-CSP system
(Elsevier Ltd., 2024-08-15)
The security of the supply of clean energy resources and the production of renewable fuels for industry are some of the strategies to combat climate change. In this sense, the massive implementation of green fuels that is ...
Artículo
Dataset and measurements from a current density sensor during experimental testing of dynamic load cycling for a parallel-serpentine design of a proton exchange membrane fuel cell
(Elsevier, 2024-06)
A dataset from experimental tests of a proton exchange membrane fuel cell (PEMFC) with an active area of approx imately 50 cm2 , parallel-serpentine channels and cross-flow field distribution between anode and cathode is ...
Tesis Doctoral
Artículo
Layer by Layer Segmentation of Water Distribution from Neutron Imaging of Large Scale Cells
(Electrochemical Society Inc., 2015)
We present a method for distinguishing liquid water content in the different layers of a polymer electrolyte fuel cell (“anode flow channels”, “cathode flow channels”, and “GDL/MEA”) from through-plane neutron imaging. ...
Artículo
Use of molten salts tanks for seasonal thermal energy storage for high penetration of renewable energies in the grid
(Elsevier, 2024-05)
Energy storage is acknowledged a key technology to meet the challenges posed by the energy transition. Short-term grid-connected storage, based on Li-Ion batteries, is becoming commonplace but seasonal energy storage at ...