Results 81 to 90 of about 7,408 (253)

Very high-energy observations of the two high-frequency peaked BL Lac objects 1ES 1218+304 and H 1426+428

, 2011
We present results of very-high-energy gamma-ray observations (E > 160 GeV) of two high-frequency-peaked BL Lac (HBL) objects, 1ES 1218+304 and H 1426+428, with the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE).
Akhter, N., Ball, J., Bramel, D. A., Carson, J., Covault, C. E., Driscoll, D., Fortin, P., Gingrich, D. M., Hanna, D. S., Jarvis, A., Kildea, J., Lindner, T., Mueller, C., Mukherjee, R., Ong, R. A., Ragan, K., Scalzo, R. A., Williams, D. A., Zweerink, J.   +18 more
core   +1 more source

Optimization of multiple receivers solar power tower systems [PDF]

, 2015
In this article a new procedure to optimize the design of a Multiple Receivers Solar Power Tower system is presented. The proposed procedure allows to optimize the different receivers (height, aperture tilt angle, azimuth angle and aperture size) as well
Carrizosa Priego, Emilio José, Domínguez Bravo, Carmen Ana, Fernández Cara, Enrique, Quero García, Manuel   +3 more
core   +1 more source

A Proof‐of‐Concept Membrane Module Concept for Solar Thermal Water Splitting Using Oxygen Transport Membranes

Energy Technology, Volume 13, Issue 10, October 2025.
Solar thermal water splitting with oxygen transport membranes offers a sustainable path to hydrogen production and enhances efficiency by potentially lowering the required temperature below 1000 °C. This study presents a scalable proof‐of‐concept module with an optimized solar heat integration.
Christopher Hall, Falk Schulze‐Küppers, Kai Bittner, Bernd Büddefeld, Nikolaos Margaritis, Jörg Wolters, Sonja Groß‐Barsnick, Juan Pablo Rincon Duarte, Nicole Carina Neumann, Ghaleb Natour   +9 more
wiley   +1 more source

Large-Scale Production of Heliostats

SolarPACES Conference Proceedings
Heliostats are the main cost factor of solar tower plants. To optimize them in terms of cost, it is mandatory to estimate the fabrication cost. A method to do so is presented and applied to a sample heliostat.
Daniel Lenski, Moritz Wirger, Andreas Pfahl   +2 more
doaj   +1 more source

Observations of Mkn 421 with the CELESTE Experiment [PDF]

, 2000
The CELESTE experiment uses the heliostats of an old solar farm in the French Pyrenees to detect gamma ray air showers by the atmospheric Cerenkov technique.
collaboration, CELESTE, Holder, J.
core   +1 more source

Catalytic Approaches for CO2 Conversion to Value‐Added Products: An Overview of Life Cycle Assessment Studies

Advanced Energy and Sustainability Research, Volume 6, Issue 8, August 2025.
The catalytic conversion of CO2 into value‐added products provides an emerging strategy for reducing carbon emissions and improving environmental performance. This review compares different Life Cycle Assessment studies to evaluate the environmental impacts of CO2 conversion, focusing on the main challenges, technical limitations, and potential ...
Anastasia Pappa, Cuong Pham‐Huu, Spiros Papaefthimiou, Spyridon Zafeiratos   +3 more
wiley   +1 more source

Very-high energy gamma-ray astronomy: A 23-year success story in high-energy astroparticle physics

, 2012
Very-high energy (VHE) gamma quanta contribute only a minuscule fraction - below one per million - to the flux of cosmic rays. Nevertheless, being neutral particles they are currently the best "messengers" of processes from the relativistic/ultra ...
A. Abramowski, A. Abramowski, A. Abramowski, A. Abramowski, A. Abramowski, A. Barrau, A. Borione, A. Penzias, A.A. Abdo, A.A. Abdo, A.A. Stepanian, A.E. Chudakov, Alan A. Watson, Albrecht Karle, C. Baixeras, C. Spiering, C. Urry, C.W. Akerlof, D.A. Smith, D.J. Helfand, D.M. Gingrich, D.R. Parsignault, E. Aliu, E. Aliu, E. Aliu, E. Harris Dan, E. Paré, F. Acero, F. Acero, F. Acero, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, F. Aharonian, G. Sinnis, G.G. Fazio, H. Anderhub, I.F. Mirabel, J. Albert, J. Albert, J. Albert, J. Albert, J. Albert, J. Aleksić, J. Aleksić, J. Aleksić, J. Huang, J. Lloyd-Evans, J. Quinn, J. Quinn, J. Vandenbroucke, J.-E. Augustin, J.A. Gaidos, J.E. Grindlay, Jamie Holder, K. Kosack, K. Werner, Karl-Heinz Kampert, L. Eckart, M. Actis, M. Catanese, M. Punch, M. Samorski, M.L. Marshak, P. Auger, P. Morrison, P.L. Nolan, Pavel A. Cherenkov, R. Enomoto, R.A. Millikan, R.J. Gould, Robert. Wagner, Roland. Winston, Stella Bradbury, T. Tümer, T.C. Weekes, U. Joshi, V.A. Acciari, V.A. Acciari, V.A. Acciari, Vassiliev, Victor Franz Hess, W. Galbraith, X. Chi, Zhen Cao   +92 more
core   +1 more source

Modelling the soiling of heliostats: Assessment of the optical efficiency and impact of cleaning operations

SOLARPACES 2018: International Conference on Concentrating Solar Power and Chemical Energy Systems, 2019
The optical efficiency of the solar field heliostats of a Concentrating Solar Power (CSP) tower plant is a fundamental parameter to assess the productivity of the plant.
Giovanni Picotti, M. Binotti, M. Cholette, P. Borghesani, G. Manzolini, T. Steinberg   +5 more
semanticscholar   +1 more source

Photoluminescence Degradation in Metal Halide Perovskites: Is In‐Situ Study with Concentrated Sunlight Possible?

Solar RRL, Volume 9, Issue 9, May 2025.
This study reports on the design and experimental validation of a new setup for the in situ study of PL degradation in metal halide perovskites using concentrated natural sunlight in a wide range of solar concentrations and sample temperatures.
Rafael Fleischman, Max Grischek, Jiahuan Zhang, Florian Scheler, Georgios E. Arnaoutakis, Mark Khenkin, Carolin Ulbrich, Steve Albrecht, Eugene A. Katz   +8 more
wiley   +1 more source

Analytical investigation of wind loads on heliostats

Revue des Énergies Renouvelables, 2016
Applications of Heliostats for solar power tower plants increased in the recent years. Most of the solar power tower plants installed are on flat terrain and they may be subjected to wind loads.
H. Bendjebbas, M. Abbas, A. Abdellah-El-Hadj   +2 more
doaj