Results 21 to 30 of about 2,448,775 (294)
Solar dryer with thermal storage and biomass-backup heater [PDF]
, 2007 An indirect type natural convection solar dryer with integrated collector-storage solar and biomass backup heaters has been designed, constructed and evaluated.
Madhlopa, A., Ngwalo, G.
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Model for Cumulative Solar Heavy Ion Energy and Linear Energy Transfer Spectra [PDF]
, 2007 A probabilistic model of cumulative solar heavy ion energy and LET spectra is developed for spacecraft design applications. Spectra are given as a function of confidence level, mission time period during solar maximum and shielding thickness. It is shown
Barth, J. L. +4 more
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Solar Activity and Solar Oscillations [PDF]
Symposium - International Astronomical Union, 1997 Helioseismology provides us with the tools to probe solar activity. So that we can consider how the solar oscillations are influenced by that activity, we first consider the phenomena that we associate with the active Sun. The surface of the Sun is not quiet but shows evidence of convection on a wide range of scales from a few hundred kilometres ...
openaire +1 more source
Computation of irradiance in a solar still by using a refined algorithm [PDF]
, 2013 A refined solar algorithm from the ESP-r system has been used to calculate the distribution of solar irradiation inside a basin-type solar still. In the approach, surface finish, view factors and multiple reflections are taken into consideration in the ...
Clarke, Joseph Andrew, Madhlopa, Amos
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The radial evolution of solar wind speeds [PDF]
, 2011 The WSA-ENLIL model predicts significant evolution of the solar wind speed. Along a flux tube the solar wind speed at 1.0 AU and beyond is found to be significantly altered from the solar wind speed in the outer corona at 0.1 AU, with most of the change ...
Arge, C. N. +4 more
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A Capabilities-Led Approach to Assessing Technological Solutions for a Rural Community
Energies, 2021 To improve access to affordable, reliable and sustainable energy in rural areas of the global south, off-grid systems using renewable generation and energy storage are often proposed. However, solution design is often technology-driven, with insufficient
Xinfang Wang +6 more
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Asymptotic convergence to pushed wavefronts in a monostable equation with delayed reaction
, 2014 We study the asymptotic behaviour of solutions to the delayed monostable equation $(*)$: $u_{t}(t,x) = u_{xx}(t,x) - u(t,x) + g(u(t-h,x)),$ $x \in R,\ t >0,$ with monotone reaction term $g: R_+ \to R_+$.
Solar, Abraham, Trofimchuk, Sergei
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Low-Latitude Coronal Holes at the Minimum of the 23rd Solar Cycle [PDF]
, 2010 Low and mid-latitude coronal holes (CHs) observed on the Sun during the current solar activity minimum (from September 21, 2006, Carrington rotation (CR) 2048, until June 26, 2009 (CR 2084)) were analyzed using {\it SOHO}/EIT and STEREO-A SECCHI EUVI ...
Abramenko, V. +5 more
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The thermal and stored heat energy driving a Stirling engine for power generation
Revue des Énergies Renouvelables, 2023 South Africa’s national power grid is currently in dire straits. The lack of a dependable power supplier and rising electricity costs force the public and businesses to look for alternatives to meet their energy needs.
Elardus Erasmus Duvenage +1 more
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SOLAR WATER HEATER SYSTEM CONTROLLER [PDF]
Fiabilitate şi Durabilitate, 2019 A solar water heater is a solar energy system that uses the sun to heat domestic hot water. Just like a solar electric system, it uses panels to collect solar energy.
Florin GROFU, Constantin CERCEL
doaj