scholarly journals On the Inability of Wind and Solar Electric Generation to Power Modern Civilization

2021 ◽  
pp. 51-63
Author(s):  
Wallace Manheimer
Keyword(s):  
Electric Power ◽  
Nuclear Fuel ◽  
Foreseeable Future ◽  
Environmental Barriers ◽  
Electric Generation ◽  
Solar Powered ◽  
The Masses

There is a societal push to replace fossil and nuclear fuel, which currently generate ~ 85% of the world’s electric power, with wind and solar powered  generation of electricity. However, there are significant physical, economic, reliability, and environmental barriers to this replacement.  This paper discusses them and concludes that for the foreseeable future, we are stuck with the more conventional sources if we want civilization for the masses to survive.

The Feasibility of Small Hydro-Electric Generation in a Large Urban Area

2012 ◽  
Vol 3 (4) ◽  
pp. 61-68
Author(s):  
Benson Y. Zhang ◽  
Adam Taylor
Keyword(s):  
Electric Power ◽  
Urban Area ◽  
Residential Buildings ◽  
Water Discharge ◽  
Storm Water ◽  
Large Urban Area ◽  
Water Pipes ◽  
Electric Generation ◽  
Micro Turbine ◽  
Urban Storm

The possibilities of generating electric power from relatively small hydro-electric sources in a large urban area is investigated. Two different aspects of hydro-electric sources have been studied: storm/waste water pipes in large multi-tenanted residential buildings and urban storm water discharge area (CSI area). The potential to generate from these sources has been investigated using a micro-turbine. The potential electric power which could be extracted from the sources was estimated using energy conservation equations under normal engineering assumptions. While technically feasible, all options are shown to be uneconomic in practice.

scholarly journals Indoor Photovoltaics and It’s Applications

2019 ◽  
Vol 9 (1) ◽  
pp. 4956-4960
Keyword(s):  
Solar Cells ◽  
Electric Power ◽  
Silicon Crystal ◽  
Dye Sensitized Solar Cells ◽  
Crystal Silicon ◽  
Power Sources ◽  
Photovoltaic Panels ◽  
Microelectronic Devices ◽  
Solar Powered ◽  
Materials Used

Solar energy from the sun rays are being utilized to generate electric power using solar powered photovoltaic panels. Implementation of this solar photovoltaic panels as a source of renewable energy is well known. But going a step further, our house or office can be made ‘smart’ if effective indoor light harvesting technology is developed. The indoor photovoltaic converts radiant capacity into electric power. These solar cells are categorized based on the materials used namely: amorphous silicon, crystal silicon and confined semiconductor. Our review suggests that the Dye- Sensitized solar cells (DSSC) could be promising as indoor power sources for microelectronic devices, wireless sensors and microelectrochemical systems. This paper resents An evaluation of research being done in this area and there from brief introduction to the materials used for the same

scholarly journals Evaluación del Recurso Hidrocinético en las Partes Bajas de la Región Hidrológica 29Ba de la Cuenca del Río Coatzacoalcos

2019 ◽  
pp. 1-6
Author(s):  
Francisco Espinosa-Arenal ◽  
Gerardo Alcalá-Perea ◽  
José Angel Hernández-Ávila ◽  
Rachel Delfín-Anzures
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Electric Power ◽  
Geographic Information ◽  
Human Settlements ◽  
Hydrokinetic Energy ◽  
Numeric Model ◽  
Electric Generation ◽  
Del Rio ◽  
Hydrometric Station

Hydrokinetic energy is induced by the velocity in the natural causes of rivers and is used for electric generation. Human settlements have always been established on the margins of the rivers, therefore it is very useful to evaluate the hydrokinetic resource in the places where there are populations on the banks of the rivers, mainly in places where there is no service available electric power. In this work, the hydrokinetic potential along the river in different sites of the flat parts of the hydrological region 29Ba is determined. The flows in the rivers are calculated taking into account the use of soil, the precipitation of different meteorological stations, which are processed in a Geographic Information System (GIS). The calculated flows are compared with the observed data of the hydrometric station Las Perlas of CONAGUA. The velocities along the river are calculated with the numeric model Hec-Ras, later the minimum, maximum and average monthly hydrokinetic potential is estimated with some turbine models designed for this purpose.

Student Learning Projects in Sustainable Energy: Solar-Powered Algae Culture, Photovoltaics, and CO2 Capture

2018 ◽  
Author(s):  
Michael G. Mauk ◽  
Carlos Ruiz ◽  
Richard Y. Chiou ◽  
Jean Espaillat ◽  
Senyu Wang ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Systems Approach ◽  
Green Technology ◽  
Energy Utilization ◽  
Solar Energy Utilization ◽  
Hands On ◽  
Hands On Learning ◽  
Electric Generation ◽  
Solar Powered ◽  
Learning Projects

A systems approach combining algae aquaculture for biofuels, photovoltaic solar electric generation, and a subsystem for atmospheric CO2 capture as a carbon source for the algae, is developed as a platform and testbed for student engineering design projects. This work serves as a hands-on learning design project for engineering undergraduates in renewable energy, industrial microbiology, and sustainable and ‘green’ technology. Fully-instrumented and automated tabletop systems for circulating algae cultures in plastic fluidic channels integrated with silicon solar cells are designed, prototyped and tested with the aim of optimizing the yields and solar energy utilization.

In situ irradiation effects studies in medium- and high-voltage TEM

1995 ◽  
Vol 53 ◽  
pp. 234-235
Author(s):  
Charles W. Allen
Keyword(s):  
Cross Section ◽  
Particle Flux ◽  
Threshold Value ◽  
High Energy ◽  
Irradiation Damage ◽  
Defect Complexes ◽  
Lattice Position ◽  
Electrons And Ions ◽  
The Masses

With respect to structural consequences within a material, energetic electrons, above a threshold value of energy characteristic of a particular material, produce vacancy-interstial pairs (Frenkel pairs) by displacement of individual atoms, as illustrated for several materials in Table 1. Ion projectiles produce cascades of Frenkel pairs. Such displacement cascades result from high energy primary knock-on atoms which produce many secondary defects. These defects rearrange to form a variety of defect complexes on the time scale of tens of picoseconds following the primary displacement. A convenient measure of the extent of irradiation damage, both for electrons and ions, is the number of displacements per atom (dpa). 1 dpa means, on average, each atom in the irradiated region of material has been displaced once from its original lattice position. Displacement rate (dpa/s) is proportional to particle flux (cm-2s-1), the proportionality factor being the “displacement cross-section” σD (cm2). The cross-section σD depends mainly on the masses of target and projectile and on the kinetic energy of the projectile particle.

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