Results 41 to 50 of about 2,373,958 (343)

Exploitation of indoor illumination for typical flat dwellings in the Mediterranean area

Energy Reports, 2023
The 2018/844 Energy Performance of Buildings Directive (EU) has widened the scope of appropriate design of buildings from a pure energy performance and carbon emissions perspective to a wider scope that includes indoor comfort, and indoor air quality ...
Diego Granados-López, Damien Gatt, Charles Yousif, Montserrat Díez-Mediavilla, Cristina Alonso-Tristán   +4 more
doaj   +1 more source

Sharp Alfvénic Impulses in the Near-Sun Solar Wind

Astrophysical Journal Supplement Series, 2019
Measurements of the near-Sun solar wind by the Parker Solar Probe have revealed the presence of large numbers of discrete Alfvénic impulses with an anti-sunward sense of propagation. These are similar to those previously observed near 1 au, in high speed
T. Horbury, T. Woolley, R. Laker, L. Matteini, J. Eastwood, S. Bale, M. Velli, B. Chandran, T. Phan, Nour E. Raouafi, K. Goetz, P. Harvey, M. Pulupa, K. Klein, T. Dudok de Wit, J. Kasper, K. Korreck, A. Case, M. Stevens, P. Whittlesey, D. Larson, R. Macdowall, D. Malaspina, R. Livi   +23 more
semanticscholar   +1 more source

Geophysical constraints on the reliability of solar and wind power worldwide

Nature Communications, 2021
If future net-zero emissions energy systems rely heavily on solar and wind resources, spatial and temporal mismatches between resource availability and electricity demand may challenge system reliability.
D. Tong, D. Farnham, Lei Duan, Qiang Zhang, N. Lewis, K. Caldeira, S. Davis   +6 more
semanticscholar   +1 more source

Coordinated control of rotor kinetic energy and pitch angle for large‐scale doubly fed induction generators participating in system primary frequency regulation

IET Renewable Power Generation, 2021
This paper presents a control strategy of large‐scale wind‐thermal power joint primary frequency regulation. First, an integrated control strategy is established rotor kinetic energy control and pitch angle control for wind turbine generators ...
Peihong Yang, Bin He, Biao Wang, Xiaoling Dong, WenYing Liu, Jihong Zhang, ZhenKui Wu, Jing‐Xia Liu, Zhigang Qin   +8 more
doaj   +1 more source

The performance prediction and techno-economic analyses of a stand-alone parabolic solar dish/stirling system, for Jamshoro, Pakistan

Cleaner Engineering and Technology, 2021
This study aims to propose a simulation as well as mathematical model to carry out the performance assessment and efficiency improvement of a stand-alone Parabolic Solar Dish Stirling (PSDS) system. The simulation for a 25 ​kW PSDS system is performed in
Amjad Ali Lashari, M.E in Electrical Power, Pervez Hameed Shaikh, Zohaib Hussain Leghari, Mujeeb Iqbal Soomro, Zubair Ahmed Memon, Muhammad Aslam Uqaili   +5 more
doaj   +1 more source

Are periodic solar wind number density structures formed in the solar corona? [PDF]

, 2009
[1] We present an analysis of the alpha to proton solar wind abundance ratio (AHe) during a period characterized by significant large size scale density fluctuations, focusing on an event in which the proton and alpha enhancements are anti-correlated. In
Kasper, J., Spence, Harlan E., Viall, N. M.   +2 more
core   +2 more sources

Solar Wind and its Evolution [PDF]

, 2011
By using our previous results of magnetohydrodynamical simulations for the solar wind from open flux tubes, I discuss how the solar wind in the past is different from the current solar wind.
A Telleschi, AS Brun, BE Wood, BE Wood, DJ McComas, H Holweger, H Miyahara, I Ribas, J-F Donati, J-F Donati, J-F Donati, K Hakamada, L Mestel, LK Harra, M Gudel, M Gudel, M Landini, MG Stereborg, RA Kopp, RW Noyes, S Imada, SH Saar, SH Saar, T Sakao, TK Suzuki, TK Suzuki, TK Suzuki, TK Suzuki, TR Ayres, V Holzwarth, Weber EJ, Y-M Wang, Y-M Wang   +32 more
core   +2 more sources

Optimal Scheduling of Biogas–Solar–Wind Renewable Portfolio for Multicarrier Energy Supplies

IEEE Transactions on Power Systems, 2018
This paper proposes a multisource multiproduct framework for coupled multicarrier energy supplies with a biogas–solar–wind hybrid renewable system.
Bin Zhou, Da Xu, Canbing Li, C. Chung, Yijia Cao, K. Chan, Qiuwei Wu   +6 more
semanticscholar   +1 more source

Hydrogen generation from methanol with network efficient power control for wireless communication system

AIP Advances, 2021
This paper presents a numerical and experimental study on the performance of a methanol steam reformer integrated with a hydrogen/air combustion reactor for hydrogen production.
Hanmin Liu, Jie Shen, Hua Xiang
doaj   +1 more source

Magnetic nulls and super-radial expansion in the solar corona [PDF]

, 2017
Magnetic fields in the sun's outer atmosphere -- the corona -- control both solar-wind acceleration and the dynamics of solar eruptions. We present the first clear observational evidence of coronal magnetic nulls in off-limb linearly polarized ...
Burkepile, Joan, Dalmasse, Kevin, De Rosa, Marc L., de Toma, Giuliana, Galloy, Michael, Gibson, Sarah E., Rachmeler, Laurel A., Tomczyk, Steven   +7 more
core   +3 more sources