scholarly journals Estimation Model on Electricity Generation from Solar Energy

2021 ◽  
Vol 9 (VI) ◽  
pp. 1353-1356
Author(s):  
V. V. S. Murthy
Keyword(s):  
Solar Energy ◽  
Energy Demand ◽  
Electricity Generation ◽  
Estimation Model ◽  
Renewable Source ◽  
The Earth ◽  
Set Up ◽  
Sunlight Energy

The Solar Energy is produced by the Sunlight is a renewable source of energy which is eco- friendly. Every hour enough sunlight energy reaches the earth to meet the world’s energy demand for a whole year. In today’s generation we needed Electricity every hour. This Solar Energy is generated by as per applications like industrial, commercial, and residential. In this article, we have reviewed about the Solar Energy from Sunlight and illustration given to estimate the parameters for solar energy set up.

scholarly journals Life Cycle Assessment of electricity generation from Jatropha oil in a short chain in Mali

2019 ◽  
Author(s):  
Leticia MENEGHEL FONSECA ◽  
Nawelle CHAOUKI ◽  
Anthony BENOIST ◽  
Guillaume BUSSET ◽  
Roland PIROT ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Consumption ◽  
Energy Demand ◽  
Electricity Generation ◽  
Ghg Emissions ◽  
Climatic Conditions ◽  
Jatropha Oil ◽  
Potential Benefits ◽  
Set Up

Jatropha curcas is an inedible oil crop which can grow under semiarid climatic conditions. Its oil can be used straight as fuel to provide energy in remote areas to improve living conditions. The aim of this study is to assess the environmental impacts of the electricity generation from Jatropha oil under West African conditions, by means of a Life Cycle Assessment (LCA). These potential impacts are calculated for four crop managements and compared to the ones of a reference electricity generation from conventional diesel. Data used in this work are from Jatropha plantations set up in Mali since 2006.LCA results show that the potential benefits of the Jatropha systems are highly dependent on the crop management, especially for the fertilization strategy and the promotion of the oilcake. However, in all cases, the Jatropha systems have lower impacts than the reference diesel system by 75% to 96% for abiotic depletion, and by 80% to 97% for ozone layer depletion, and higher impacts by 260% to 1000% for eutrophication, and by 26% to 160% for acidification. In the best case, the Jatropha system can also have lower impacts than the reference system by 76% for climate change, and by 88% for photochemical oxidation.A methodological originality of this work is the inclusion of animal and human labour into the LCA framework. A first model is proposed for the accounting of energy consumption and GreenHouse Gases (GHG) emissions due to labour. Concerning energy consumption, labour is not negligible with a share from 14% to 50% of the total impact of the Jatropha systems; however the highest share of 50% corresponds to the scenarios with the lowest energy demand. CH4 emissions from livestock are also not negligible but second-order in this study since they account for 2% to 13% of total GHG emissions.

Rendez vous with Saturn's rings

1984 ◽  
Vol 75 ◽  
pp. 743-759 ◽  
Author(s):  
Kerry T. Nock
Keyword(s):  
Solar Energy ◽  
Electric Propulsion ◽  
Power Source ◽  
Propulsion System ◽  
Low Thrust ◽  
Ring Plane ◽  
The Earth ◽  
Total Impulse ◽  
Saturn's Rings

ABSTRACTA mission to rendezvous with the rings of Saturn is studied with regard to science rationale and instrumentation and engineering feasibility and design. Future detailedin situexploration of the rings of Saturn will require spacecraft systems with enormous propulsive capability. NASA is currently studying the critical technologies for just such a system, called Nuclear Electric Propulsion (NEP). Electric propulsion is the only technology which can effectively provide the required total impulse for this demanding mission. Furthermore, the power source must be nuclear because the solar energy reaching Saturn is only 1% of that at the Earth. An important aspect of this mission is the ability of the low thrust propulsion system to continuously boost the spacecraft above the ring plane as it spirals in toward Saturn, thus enabling scientific measurements of ring particles from only a few kilometers.

scholarly journals Solar energy: A panacea for the electricity generation crisis in Nigeria

Heliyon ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. e07016
Author(s):  
Emmanuel.P. Agbo ◽  
Collins.O. Edet ◽  
Thomas.O. Magu ◽  
Armstrong.O. Njok ◽  
Chris.M. Ekpo ◽  
...  
Keyword(s):  
Solar Energy ◽  
Electricity Generation

scholarly journals Prediction and estimation model of energy demand of the AMR with cobot for the designed path in automated logistics systems

Procedia CIRP ◽  
2021 ◽  
Vol 99 ◽  
pp. 116-121
Author(s):  
Khurshid Aliev ◽  
Emiliano Traini ◽  
Mansur Asranov ◽  
Ahmed Awouda ◽  
Paolo Chiabert
Keyword(s):  
Energy Demand ◽  
Estimation Model ◽  
Logistics Systems

scholarly journals Optimization of Costs and Self-Sufficiency for Roof Integrated Photovoltaic Technologies on Residential Buildings

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4018
Author(s):  
Guglielmina Mutani ◽  
Valeria Todeschi
Keyword(s):  
Solar Energy ◽  
Energy Security ◽  
Energy Demand ◽  
Residential Buildings ◽  
Maximum Level ◽  
Economic Incentives ◽  
Economic Benefits ◽  
The South ◽  
Self Sufficiency ◽  
Photovoltaic Technologies

It is common practice, in the production of photovoltaic energy to only use the south-exposed roof surface of a building, in order to achieve the maximum production of solar energy while lowering the costs of the energy and the solar technologies. However, using the south-exposed surface of a roof only allows a small quota of the energy demand to be covered. Roof surfaces oriented in other directions could also be used to better cover the energy load profile. The aim of this work is to investigate the benefits, in terms of costs, self-sufficiency and self-consumption, of roof integrated photovoltaic technologies on residential buildings with different orientations. A cost-optimal analysis has been carried out taking into account the economic incentives for a collective self-consumer configuration. It has emerged, from this analysis, that the better the orientation is, the higher the energy security and the lower the energy costs and those for the installation of photovoltaic technologies. In general, the use of south-facing and north-facing roof surfaces for solar energy production has both economic and energy benefits. The self-sufficiency index can on average be increased by 8.5% through the use of photovoltaic installations in two directions on gable roofs, and the maximum level that can be achieved was on average 41.8, 41.5 and 35.7% for small, medium and large condominiums, respectively. Therefore, it could be convenient to exploit all the potential orientations of photovoltaic panels in cities to improve energy security and to provide significant economic benefits for the residential users.

Development of an Innovative Code for the Design of Different Parabolic Trough Solar Fields

2009 ◽  
Author(s):  
Ennio Macchi ◽  
Giampaolo Manzolini ◽  
Paolo Silva
Keyword(s):  
Solar Energy ◽  
Energy Demand ◽  
Working Fluid ◽  
Fluid Temperature ◽  
Parabolic Trough ◽  
High Solar Radiation ◽  
Power Block ◽  
The Usa ◽  
Solar Field ◽  
Steam Cycle

The role of renewable energies and in particular solar energy could be fundamental in future scenarios of worldwide increase of energy demand: thermodynamic solar energy can play an important role in country with high solar radiation. This paper discusses the development and testing of an innovative code for the prediction of thermodynamic performances at nominal conditions and the estimation of costs of the whole plant, for different parabolic trough solar fields. The code allows a preliminary design of the solar field lay-out, the sizing of the main components of the plant and the optimization of the steam cycle. The code, named PATTO (PArabolic Trough Thermodynamic Optimization), allows to separately calculate the thermal efficiency of (i) parabolic trough systems in commerce as well as (ii) combination of components of various commercial systems, in order to exploit different technology solutions: combination of mirrors, receivers and supports. Using the selected parabolic troughs, the plant configuration is then completed by connecting pipes, heat exchangers, the steam cycle, and storage tanks. The code is also flexible in terms of working fluid, temperature and pressure range. Regarding the power block, a conventional steam cycle with super-heater and re-heater sections and up to seven regenerative bleedings is adopted. It is possible to use also simpler configuration as without re-heater or with less regenerative bleedings. Moreover, thanks to simple or sophisticated economic correlations depending on available data, the code calculates the overall investment cost for the considered solar field and the power block. The code performs steady state analysis at nominal conditions, while future developments are planned regarding part load analysis and transient simulations. The model is tested towards real applications and reference values found in literature; in particular, focusing on SEGS VI plant in the USA. Detailed results showing code potentiality, are presented in terms of solar field and power block energy balances, plant auxiliaries, piping and economic analysis.

scholarly journals Seasonal variations and north–south asymmetries in polar wind outflow due to solar illumination

2016 ◽  
Vol 34 (11) ◽  
pp. 961-974 ◽  
Author(s):  
Lukas Maes ◽  
Romain Maggiolo ◽  
Johan De Keyser
Keyword(s):  
Seasonal Variations ◽  
Solar Zenith Angle ◽  
The Sun ◽  
Polar Ionosphere ◽  
Polar Cap ◽  
Polar Wind ◽  
Simple Set ◽  
The Earth ◽  
Rotation Of The Earth ◽  
Set Up

Abstract. The cold ions (energy less than several tens of electronvolts) flowing out from the polar ionosphere, called the polar wind, are an important source of plasma for the magnetosphere. The main source of energy driving the polar wind is solar illumination, which therefore has a large influence on the outflow. Observations have shown that solar illumination creates roughly two distinct regimes where the outflow from a sunlit ionosphere is higher than that from a dark one. The transition between both regimes is at a solar zenith angle larger than 90°. The rotation of the Earth and its orbit around the Sun causes the magnetic polar cap to move into and out of the sunlight. In this paper we use a simple set-up to study qualitatively the effects of these variations in solar illumination of the polar cap on the ion flux from the whole polar cap. We find that this flux exhibits diurnal and seasonal variations even when combining the flux from both hemispheres. In addition there are asymmetries between the outflows from the Northern Hemisphere and the Southern Hemisphere.

scholarly journals Evaluation of Solar Ponds and Aplication Area

2018 ◽  
Vol 64 ◽  
pp. 02002
Author(s):  
Sogukpinar Haci ◽  
Bozkurt Ismail ◽  
Cag Serkan
Keyword(s):  
Solar Energy ◽  
Electricity Generation ◽  
Storage Capacity ◽  
Heat Storage ◽  
Storage Systems ◽  
Hot Water ◽  
Temperature Variations ◽  
Solar Ponds ◽  
Salty Water ◽  
Solar Pond

Solar ponds are heat storage systems where solar energy is collected and stored thermally. Solar ponds were discovered during the temperature variations in the lower regions of existing saltwater pond in the area is found to be higher than their surface. Later, it was constructed artificially and started to be used. These systems have heat storage capacity at moderate temperatures. Solar pons are used in many areas such as electricity generation, heating the environment, meeting the need of hot water, drying food and obtaining fresh water from salty water. In this study, the studies about solar ponds were summarized, the construction of solar pond was explained, and the application areas were examined.

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