scholarly journals Rural Electrification Pathways: An Implementation of LEAP and GIS Tools in Mali

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3338
Author(s):  
Vittorio Sessa ◽  
Ramchandra Bhandari ◽  
Abdramane Ba
Keyword(s):  
Fossil Fuels ◽  
Geographical Information ◽  
Solar Pv ◽  
Viable Option ◽  
Emission Analysis ◽  
Demand And Supply ◽  
Information Tools ◽  
Gis Tools ◽  
Low Emission ◽  
Analysis Platform

Remote rural populations do not often have the luxury of viable multisource electricity generation systems. Considering fossil fuels for remote populated areas is not often a viable option due to the fuel transportation costs and the population’s socioeconomic status. Extending the grid is often economically prohibitive. This paper proposes possible ways in which Mali could increase the rate of population with access to electricity by 2050 using Low Emission Analysis Platform (LEAP) and geographical information tools. The current energy situation is assessed, and multiple demand and supply scenarios are created to find the most viable option in environmental and economic dimensions. A minimum of 50% reduction of biomass consumption in the residential sector and a maximum of 71% was achieved through the combination of grid extension and decentralized solar PV. Solar PV becomes the preferable option when enough time for the effects of electricity on income is given. When these effects are not present, solar PV is still a better option, as the amount of biomass replaced with electricity is reduced.

A tes

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
IJE Manager
Keyword(s):  
Energy Supply ◽  
Fossil Fuels ◽  
Geographical Location ◽  
Weather Conditions ◽  
Past Century ◽  
Solar Pv ◽  
Pv Systems ◽  
Trade Offs ◽  
A Site ◽  
Selection Methodology

In the past century, fossil fuels have dominated energy supply in Indonesia. However, concerns over emissions are likely to change the future energy supply. As people become more conscious of environmental issues, alternatives for energy are sought to reduce the environmental impacts. These include renewable energy (RE) sources such as solar photovoltaic (PV) systems. However, most RE sources like solar PV are not available continuously since they depend on weather conditions, in addition to geographical location. Bali has a stable and long sunny day with 12 hours of daylight throughout the year and an average insolation of 5.3 kWh/m2 per day. This study looks at the potential for on-grid solar PV to decarbonize energy in Bali. A site selection methodology using GIS is applied to measure solar PV potential. Firstly, the study investigates the boundaries related to environmental acceptability and economic objectives for land use in Bali. Secondly, the potential of solar energy is estimated by defining the suitable areas, given the technical assumptions of solar PV. Finally, the study extends the analysis to calculate the reduction in emissions when the calculated potential is installed. Some technical factors, such as tilting solar, and intermittency throughout the day, are outside the scope of this study. Based on this model, Bali has an annual electricity potential for 32-53 TWh from solar PV using amorphous thin-film silicon as the cheapest option. This potential amount to three times the electricity supply for the island in 2024 which is estimated at 10 TWh. Bali has an excessive potential to support its own electricity demand with renewables, however, some limitations exist with some trade-offs to realize the idea. These results aim to build a developmental vision of solar PV systems in Bali based on available land and the region’s irradiation.

scholarly journals Experimental Studies on an Inclined Collector Divergent Chimney Pilot Plant

2021 ◽  
Vol 850 (1) ◽  
pp. 012008
Author(s):  
N Rajamurugu
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Low Cost ◽  
Renewable Energy Sources ◽  
Experimental Studies ◽  
High Mass ◽  
Energy Sources ◽  
Solar Pv ◽  
Solar Chimney ◽  
Energy Agency

Abstract Renewable energy sources become suitable valid options to reduce the dependency on fossil fuels or petroleum products. The International Renewable Energy Agency reports that the world will harvest 40% of energy from renewable energy sources by 2030. Conventional technologies such as solar PV technology, consumes higher capital per unit (kWh) of electricity generation cost significantly higher than the traditional sources. Hence, solar chimney power generation system can be suitable option for generating low cost energy. Solar chimneys are developed and tested by different researchers in enhancing the performance of the system. Studies on the geometric modifications of the collector, and chimney are limited. The aim of this paper is to analyse the experimental data obtained from a divergent solar chimney. Experimentation is carried under sunlight in an open atmosphere. The airflow rates in the chimneys are tested under different collector outlet height. The experimental results showed that a chimney with higher collector openings was performed well than other models. The computational analysis is also carried out using ANSYS Fluent software package which shows that the collector opening of 2.5m is recommended for higher high mass flow rate and system efficiency.

scholarly journals Investigation of Auxiliary Power Potentials of Solar Photovoltaic Applications of Dry Bulk Carrier Ships

2019 ◽  
Author(s):  
Wandifa Saidyleigh ◽  
A. I. Olcer ◽  
R Baumler
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Energy Resource ◽  
Population Expansion ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
International Shipping ◽  
Cost Of Energy ◽  
Bulk Carriers ◽  
Photovoltaic Technology

The increase in world seaborne trade over the past decade due to global economic and population expansion has resulted in a corresponding increase of world shipping fleet with even greater size and power requirements. The bulk of these ships use cheap and widely available fossil fuels, mainly oil for operation but which has deleterious effects on the environment. In order to address environmental concerns in the shipping sector, the International Maritime Organization (IMO), responding to the global call to reduce greenhouse gases emissions from international shipping adopted technical and operational measures. These are to ensure efficient energy management on ships and have led to the application of many innovative technologies including the use of renewable energies and alternative fuels on ships to minimize fossil fuel consumption and reduce emissions. However, in order to achieve a substantial emissions reduction in international shipping, the potential applicability of a technology which utilizes a universal renewable energy resource on the largest ship type in international shipping fleet should be investigated. This research focuses on investigating the potential of Solar Photovoltaic technology on dry bulk carriers using a developed methodology and Levelised cost of energy concept as the basis for comparison. The results of this research can be used to guide decision makers about the potentials of Solar Photovoltaic technology on dry bulk carriers in general whilst its developed methodology may be useful in the specific context for determining which ships and under what circumstances solar PV is an option.

Designing sustainable energy plans for the Greater Mekong Subregion

2021 ◽  
Author(s):  
Stefano Galelli ◽  
Kais Siala ◽  
AFM Kamal Chowdhury ◽  
Thanh Duc Dang
Keyword(s):  
Power Supply ◽  
Fossil Fuels ◽  
Sustainable Energy ◽  
Solar Pv ◽  
Economic Sectors ◽  
Planning Period ◽  
Riverine Ecosystems ◽  
The Many ◽  
Greater Mekong Subregion ◽  
The Impact

<p>Fossil fuels and hydropower dams have long been at the backbone of power supply systems in the Greater Mekong Subregion (GMS), an energy policy catalyzed by the direct availability of these resources, the backing of foreign investments, and the limited coordination among the many decision-makers. Such policy has resulted in large externalities: gas and coal-fired plants contribute to the carbon footprint of all GMS countries, particularly Thailand; dams have affected the riverine ecosystems, impacting entire economic sectors. According to the official energy plans, coal will be soon sidelined, but dams will keep playing an important role. That is despite the availability of solar and other renewable resources. Is it possible to design more sustainable energy plans for the GMS? Can we limit the number of dams that will be built in the near future? What are the main technologies and policies that should be prioritized? To answer these questions, we developed a spatially-distributed numerical model that co-optimizes capacity expansion as well as hourly dispatch of generation, transmission, and storage. The model is applied to Thailand, Laos, and Cambodia, over a planning period spanning from 2016 to 2037. Optimization results show that the generation capacity planned by these countries could be met in a more sustainable manner by relying on solar PV, which could supply about one third of the projected electricity demand. Investments in renewable energy should be supported by cross-border grid interconnections, which would connect load centers to more production sites, easing the supply-demand balancing. To put the analysis in a broader water-energy context, we also assess the impact of current and proposed energy plans on river connectivity and flows. Overall, our analysis demonstrates that there are untapped opportunities for untying the fate of the Mekong River basin from that of power supply and economic development.</p>

scholarly journals Sustainable Development: Evaluating Optimal Technique for Spatial Data Forecast

Proceedings ◽  
2018 ◽  
Vol 2 (22) ◽  
pp. 1371
Author(s):  
Gaurav Kumar ◽  
Rajiv Gupta
Keyword(s):  
Information System ◽  
Spatial Data ◽  
Satellite Images ◽  
Moving Average ◽  
Vegetation Indices ◽  
Geographical Information ◽  
One Dimensional ◽  
Regression Methods ◽  
Gis Tools ◽  
Normalized Difference Vegetation Indices

This paper is an approach to forecast the spatial data in time series domain. Normally in GIS (Geographical Information System), we need raster forecasting. Moving average, exponential smoothing, and linear regression methods of forecasting are used over one-dimensional data. Present work concentrates on using these methods on satellite images applying them from pixel to pixel of historical temporal satellite data. An example set of satellite images from years 2011 to 2015 has been used to forecast the image in the year 2016. GIS tools have been developed in ArcGIS 10.1 using python to implement the methods of forecasting. Forecasted and actual images of the year 2016 have been compared by calculating the Normalized Difference Vegetation Indices (NDVI) and change detection to identify the best method.

Environmentally-Benign Conversion of Biomass Residues to Electricity

2013 ◽  
Author(s):  
Andrew Davies ◽  
Rasam Soheilian ◽  
Chuanwei Zhuo ◽  
Yiannis Levendis
Keyword(s):  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Environmentally Benign ◽  
Direct Combustion ◽  
Energy Needs ◽  
Low Emission ◽  
Petroleum Resources ◽  
Abundant Supply ◽  
Combustion Technique ◽  
Products Of Incomplete Combustion

As petroleum resources are finite, it is imperative to use them wisely in energy conversion applications and look for alternative options as an energy source. Biomass is one of the renewable energy sources that can be used to partially replace fossil fuels. Biomass-based fuels can be produced domestically and may thus reduce dependency on fuel imports. Due to their abundant supply, and given that to an appreciable extent they are considered to be carbon-neutral, their use for power generation is of technological interest. However, whereas biomasses can be directly burned in furnaces, such a conventional direct combustion technique is ill-controlled and typically produces considerable amounts of health-hazardous airborne compounds [1,2]. Thus, an alternative technology is described herein to further address our increasing energy needs and, at the same time, utilize our biomass streams in an environmentally-benign manner. More specifically, a multi-step process/device is outlined to accept biomass, of various types and shapes, and generate an easily-identifiable form of energy as a final product. To achieve low emissions of products of incomplete combustion, the biomass is gasified pyrolyticaly, mixed with air, ignited and, finally, burned in nominally premixed low-emission flames. Combustion is thus indirect, since the biomass is not directly burned, instead its gaseous pyrolyzates are burned upon mixing with air. Thereby, combustion is well-controlled and can be complete. A demonstration device has been constructed to convert the internal energy of plastics into clean thermal energy and, eventually to electricity.

A Taguchi-Fuzzy-Based Multi-Objective Optimization of a Direct Injection Diesel Engine Fueled With Different Blends of Leucas Zeylanica Methyl Ester and 2-Ethylhexyl Nitrate Diesel Additive With Diesel

2017 ◽  
Vol 139 (4) ◽  
Author(s):  
Jibitesh Kumar Panda ◽  
G. R. K. Sastry ◽  
Ram Naresh Rai
Keyword(s):  
Methyl Ester ◽  
Fossil Fuels ◽  
Direct Injection ◽  
Taguchi Optimization ◽  
Emission Analysis ◽  
Performance And Emission ◽  
Performance And Emissions ◽  
Engine Emission ◽  
Different Sources ◽  
Engine Condition

The increasing price of conventional diesel fuel, its deficiency, and the injurious outcome of combustion produced contaminants seem to make different sources more fascinating. Leucas zeylanica plant is noncomestible in nature and available abundantly. Leucas zeylanica methyl ester is renewable and least polluting fuel, which can supplement fossil fuels with unmodified engine condition. The existing experimentation assesses the performance and emission analysis by using various blends of leucas zeylanica methyl ester, diesel, and diesel additives like 2-ethylhexyl nitrate. This experimental investigation gives less engine emission and better performance as compared with mineral diesel. In the radical portion of this investigation, fuzzy-based Taguchi optimization for predicting the optimum input blends results in the optimum combination of performance and emissions parameter.

scholarly journals Spatially Explicit Assessment of Agricultural Water Equilibrium in the Korean Peninsula

2018 ◽  
Vol 10 (1) ◽  
pp. 201 ◽  
Author(s):  
Chul-Hee Lim ◽  
Yuyoung Choi ◽  
Moonil Kim ◽  
Soo Lee ◽  
Christian Folberth ◽  
...  
Keyword(s):  
Korean Peninsula ◽  
Large Scale ◽  
Hydrological Cycle ◽  
Supply And Demand ◽  
Geographical Information ◽  
Spatially Explicit ◽  
Agricultural Water ◽  
Demand And Supply ◽  
Latitudinal Difference ◽  
Water Equilibrium

In agriculture, balancing water use and retention is an issue dealt with in most regions and for many crops. In this study, we suggest agricultural water equilibrium (AWE) as a new concept that can facilitate a spatially explicit management of agricultural water. This concept is based on the principle of supply and demand of agricultural water, where the virtual water content of crops (VWC) can be defined as the demand, and cropland water budget (CWB) as the supply. For assessing the AWE of the Korean Peninsula, we quantified the CWB based on the hydrological cycle and the VWC of rice, a key crop in the Peninsula. Five factors, namely crop yield, growing season evapotranspiration, annual evapotranspiration, runoff, and annual precipitation, were used to assess the AWE, of which the first four were estimated using the spatially explicit large-scale crop model, Geographical Information System (GIS)-based Environmental Policy Integrated Climate (GEPIC). The CWB and VWC were calculated for a period of three decades, and the AWE was computed by deducting the VWC from the CWB. Our results show a latitudinal difference across the Korean Peninsula. On analyzing the AWE of the major river basins, we found most basins in North Korea showed very low values inferring unsustainable overconsumption of water. The latitudinal difference in AWE is a reflectance of the latitudinal changes in the VWC and CWB. This can be explained by decoupling the demand and supply of agricultural water. Although the AWE values presented in this study were not absolute, the values were sufficient to explain the latitudinal change, and the demand and supply of agricultural water, and establish the usefulness of the indicator.

Applicability of GIS tools in assessing performance of the transportation systems in urban areas

2016 ◽  
Vol 13 (2) ◽  
pp. 120-127 ◽  
Author(s):  
Mohammed Moshabeb Al-Ali
Keyword(s):  
Spatial Data ◽  
Urban Areas ◽  
Transportation System ◽  
Transportation Systems ◽  
Geographical Information ◽  
Policy Makers ◽  
Content Type ◽  
Gis Tools ◽  
Strategic Goals ◽  
Goals And Objectives

Purpose – The purpose of this paper is to investigate applicability of geographical information system (GIS) tools in assessing performance of the transportation systems which integrate spatial and GIS parameters and indicators. Design/methodology/approach – In this context, performance measures have been objectively related to the strategic goals and objectives identified by policy makers in particular areas. Findings – Results suggest that as a result of on the characteristics of transportation system, further understanding and considerations have been achieved regarding the performance of the investigated transportation systems and the needed transport polices in the study areas. Originality/value – The integrating of spatial data with the conventional data to assess performance of the transportation system.

Sign in / Sign up

Export Citation Format

Share Document