scholarly journals Feasible location identification & potential assessment of micro-hydropower:  Gilgel Beles River, Upper Blue Nile Basin, Ethiopia

2021 ◽  
Author(s):  
Semahegn Gebiru ◽  
Mekash Kifelew
Keyword(s):  
Energy Demand ◽  
Excess Energy ◽  
Decision Makers ◽  
Health Centers ◽  
Data Preparation ◽  
Huge Amount ◽  
Blue Nile Basin ◽  
Hydropower Potential ◽  
Arc Gis ◽  
Water Pumps

Abstract Ethiopia is endowed with huge natural resources especially water resources that is why Ethiopia is the water tower of East Africa. But having the capability of generating a huge amount of electricity Ethiopia is under an energy crisis especially the rural peoples of Ethiopia. To overcome this problem utilization of renewable sources of energy like wind, solar and hydro are the best options. Hence, the objective of this study is to assess and identify the micro hydropower potential of the Gilgel-Beles river which is located in the Amhara and Benishangul Gumuz regions of Ethiopia. For data preparation and analysis, Arc GIS, HEC-GEOHMS, and HOMER software were used. Typical energy demand categories (lighting, radio, television, injera Mitad, stove, water pumps, schools, churches, and health centers) for Alefa Kacha Village were considered. The result showed that there is 88% excess energy from Hp site8 to supply other villages in addition to Alefa Kacha. Based on the estimated total technical ROR hydro potential of Gilgel-Beles River 660.01Kw technical power and 5608.222MWh annual energy was determined. The amount of coal or wood that can be saved per year as a result of the energy produced by the potential Micro Hydropower of Gilgel-Beles River is also determined. Finally, 9 sites were identified and a ranking of hydropower sites has been done for decision-makers to make a reasonable decision as to which sites should be given the top priority for future micro hydropower development.

Socio-Technical Modeling to Manage Power Distribution for Microgrid Systems with Limited Production Capacity

2021 ◽  
pp. 1-38
Author(s):  
Hailie Suk ◽  
Ayushi Sharma ◽  
Anand Balu Nellippallil ◽  
Ashok Das ◽  
John Hall
Keyword(s):  
Rural Communities ◽  
Power Distribution ◽  
Production Capacity ◽  
Solution Space ◽  
Decision Makers ◽  
Safety Education ◽  
Water Safety ◽  
Water Safety Education ◽  
Water Pumps

Abstract The quality of life (QOL) in rural communities is improved through electrification. Microgrids can provide electricity in areas where grid access to electricity is infeasible. Still, insufficient power capacity hinders the very progress that microgrids promote. Therefore, we propose a decision-making framework to manage power distribution based on its impact on the rural QOL. Parameters are examined in this paper to represent the QOL pertaining to water, safety, education, and leisure/social activities. Each parameter is evaluated based on condition, community importance, and energy dependence. A solution for power allocation is developed by executing the compromise decision support problem (cDSP) and exploring the solution space. Energy loads, such as those required for powering water pumps, streetlamps, and household devices are prioritized in the context of the QOL. The technique also allows decision-makers to update the power distribution scheme as the dynamics between energy production and demand change over time. In this paper, we propose a framework for connecting QOL and power management. The flexibility of the approach is demonstrated using a problem with varying scenarios that may be time-dependent. The work enables sustainable energy solutions that can evolve with community development.

scholarly journals Urban energy performance calculation based on EPBD standards. GIS4ENER tool

2020 ◽  
Author(s):  
Gema Hernandez-Moral ◽  
◽  
Víctor Iván Serna-Gonzalez ◽  
Francisco Javier Miguel Herrero ◽  
César Valmaseda-Tranque
Keyword(s):  
Energy Demand ◽  
Planning Process ◽  
Energy Performance ◽  
Local Scale ◽  
Decision Makers ◽  
Energy Planning ◽  
Strong Impact ◽  
Building Stock ◽  
Urban Energy ◽  
Performance Calculation

Climate change will have a strong impact on urban settings, which will also represent one of the major challenges (world’s urban population is expected to double by 2050, EU buildings consume 40% final energy and generate 36% CO2 emissions). A plethora of initiatives address this challenge by stressing the underlying necessity of thinking globally but acting locally. This entails the inclusion of a varied set of decision-makers acting at different scales and needing robust, comprehensive and comparable information that can support them in their energy planning process. To this end, this paper presents the GIS4ENER tool to support energy planners at different scales by proposing a bottom-up approach towards the calculation of energy demand and consumption at local scale that can be aggregated to support other decision-making scales. It is based on three main pillars: the exploitation of publicly available data (such as Open Street Maps, Building Stock Observatory or TABULA), the implementation of standardised methods to calculate energy (in particular the ISO52000 family) and the use of Geographic Information Systems to represent and facilitate the understanding of results, and their aggregation. The paper presents the context, main differences with other approaches and results of the tool in Osimo (IT).

Deep renovation of historic buildings

2019 ◽  
Vol 38 (4) ◽  
pp. 539-553 ◽  
Author(s):  
Daniel Herrera-Avellanosa ◽  
Franziska Haas ◽  
Gustaf Leijonhufvud ◽  
Tor Brostrom ◽  
Alessia Buda ◽  
...  
Keyword(s):  
Energy Demand ◽  
Best Practice ◽  
Energy Performance ◽  
Decision Makers ◽  
Historic Buildings ◽  
Content Type ◽  
Critical Approaches ◽  
Conceptual Paper ◽  
Continued Use ◽  
Definition Of

Purpose Improving the energy performance of historic buildings has the potential to reduce carbon emissions while protecting built heritage through its continued use. However, implementing energy retrofits in these buildings faces social, economic, and technical barriers. The purpose of this conceptual paper is to present the approach of IEA-SHC Task 59 to address some of these barriers. Design/methodology/approach Task 59 aims to achieve the lowest possible energy demand for historic buildings. This paper proposes a definition for this concept and identifies three key socio-technical barriers to achieving this goal: the decision-makers’ lack of engagement in the renovation of historic buildings, a lack of support during the design process and limited access to proven retrofit solutions. Two methods – dissemination of best-practice and guidelines – are discussed in this paper as critical approaches for addressing the first two barriers. Findings An assessment of existing databases indicates a lack of best-practice examples focused specifically on historic buildings and the need for tailored information describing these case studies. Similarly, an initial evaluation of guidelines highlighted the need for process-oriented guidance and its evaluation in practice. Originality/value This paper provides a novel definition of lowest possible energy demand for historic buildings that is broadly applicable in both practice and research. Both best-practices and guidelines are intended to be widely disseminated throughout the field.

scholarly journals Joint Analysis of Cost and Energy Savings for Preliminary Design Alternative Assessment

2020 ◽  
Vol 12 (18) ◽  
pp. 7507
Author(s):  
Carlo Iapige De Gaetani ◽  
Andrea Macchi ◽  
Pasquale Perri
Keyword(s):  
Energy Demand ◽  
Alternative Assessment ◽  
Energy Savings ◽  
Life Cycles ◽  
Decision Makers ◽  
Joint Analysis ◽  
Energy Demands ◽  
Design Alternatives ◽  
The Impact

The building sector plays a central role in addressing the problem of global energy consumption. Therefore, effective design measures need to be taken to ensure efficient usage and management of new structures. The challenging task for designers is to reduce energy demands while maintaining a high-quality indoor environment and low costs of construction and operations. This study proposes a methodological framework that enables decision-makers to resolve conflicts between energy demand and life cycle costs. A case study is analyzed to validate the proposed method, adopting different solutions for walls, roofs, floors, windows, window-to-wall ratios and geographical locations. Models are created on the basis of all the possible combinations between these elements, enriched by their thermal properties and construction/management costs. After the alternative models are defined, energy analyses are carried out for an estimation of consumption. By calculating the total cost of each model as the sum of construction, energy and maintenance costs, a joint analysis is carried out for variable life cycles. The obtained results from the proposed method confirm the importance of a preliminary assessment from both energy and cost points of view, and demonstrate the impact of considering different building life cycles on the choice of design alternatives.

scholarly journals The Green Tax Revolution

2021 ◽  
Vol 56 (5) ◽  
pp. 284-287
Author(s):  
Csaba László
Keyword(s):  
Tax Policy ◽  
Tax Reform ◽  
Decision Makers ◽  
Huge Amount ◽  
Green Tax Reform ◽  
Green Policy ◽  
Price Structure ◽  
Policy Goals ◽  
The World ◽  
Climate Crisis

AbstractClimate crisis is becoming higher on the agenda of the decision makers of the world. A huge amount of resources have been dedicated to green projects, however far less emphasis has been put on tax policy opportunities. Carbon pricing can increase the burden of CO2 producers, but this does not appear to be enough. We need a Green Tax Reform which focuses on the Pigouvian approach and can correct the distortions of different climate hurting activities. Through tax policy tools, the price structure should be drastically changed and serious incentives should be provided to change the behaviours of the consumers and producers to achieve green policy goals.

scholarly journals Hadoop Paradigm for Satellite Environmental Big Data Processing

2020 ◽  
Vol 11 (1) ◽  
pp. 23-47 ◽  
Author(s):  
Badr-Eddine Boudriki Semlali ◽  
Chaker El Amrani ◽  
Guadalupe Ortiz
Keyword(s):  
Big Data ◽  
Air Quality ◽  
Climate Changes ◽  
Environmental Data ◽  
Decision Makers ◽  
Huge Amount ◽  
Vertical Column ◽  
Data Architecture ◽  
Vertical Column Density ◽  
Major Factors

The important growth of industrial, transport, and agriculture activities, has not led only to the air quality and climate changes issues, but also to the increase of the potential natural disasters. The emission of harmful gases, particularly: the Vertical Column Density (VCD) of CO, SO2 and NOx, is one of the major factors causing the aforementioned environmental problems. Our research aims to contribute finding solution to this hazardous phenomenon, by using remote sensing (RS) techniques to monitor air quality which may help decision makers. However, RS data is not easy to manage, because of their huge amount, high complexity, variety, and velocity, Thus, our manuscript explains the different aspects of the used satellite data. Furthermore, this article has proven that RS data could be regarded as big data. Accordingly, we have adopted the Hadoop big data architecture and explained how to process efficiently RS environmental data.

State of Sharing Clinical Information in a Healthcare System in the Gulf

2012 ◽  
Vol 1 (3) ◽  
pp. 27-42
Author(s):  
Khaled M. Khan
Keyword(s):  
Best Practices ◽  
Clinical Data ◽  
Clinical Information ◽  
Healthcare Services ◽  
Decision Makers ◽  
Health Centers ◽  
Healthcare Sector ◽  
Healthcare Decision ◽  
Primary Health ◽  
Gulf Country

The main objectives of this paper are to study the extent of automation and the state of sharing of clinical data in out-patient services of a healthcare sector in the Gulf. Based on the findings, it proposes a framework to improve the current automation process further. The paper focuses mainly on how the patients’ clinical data in the local primary health centers (PHCs) and the main hospitals in a Gulf country are stored electronically, and how the clinical data are shared among all major stakeholders. It is anticipated that the proposed framework will significantly reduce the duplication of data and services as well as reduce the use of paper files significantly. The healthcare decision makers will be able to access the relevant data in order to provide best practices and decision supports. It also promotes data sharing among all stakeholders, hence improve healthcare services.

scholarly journals Energy demand in citrus production under varied operational efficiency values

2014 ◽  
Vol 34 (4) ◽  
pp. 746-754 ◽  
Author(s):  
Nelson C. Franco Junior ◽  
Marcos Milan ◽  
Thiago L. Romanelli
Keyword(s):  
Production System ◽  
Energy Demand ◽  
Work Capacity ◽  
Point Of View ◽  
Decision Makers ◽  
Maximum Efficiency ◽  
Citrus Production ◽  
Citrus Orchards ◽  
Field Efficiency ◽  
Energetic Point

Citrus orchards are very important in Brazil, especially in São Paulo State, where occupy an area of 600,000 ha approximately. To identify sustainability degree of citrus production system, an energy analysis allows evaluating efficiency of direct and indirect applied inputs. Thus, this study aimed to evaluate citrus production system under energetic point of view, in which invested energy is paid back with citrus production; being compared within three scenarios for operational field efficiency. As result, by sensitivity analysis was determined that fuel was the main energy demander, followed by pesticides and fertilizers. In operational work capacity analysis, all combinations between efficiency (minimum, typical and maximum) and yield levels became positive in the seventh year, except for the combination minimum efficiency and 10 % less yield, positive in the eighth year. The best combination (maximum efficiency and 10 % more yield) has promoted investment payoff around the sixth and seventh year. By this study, it is possible to determine the total energy demand to produce citrus and indentify the applied inputs that need more attention by the decision-makers. Labor and seedlings can be ommited for further studies with citrus, since they were irrelevant. Management of agricultural machinery may pose an important role on decreasing environmental impact of citrus production.

Examination of changes in the Turkish hydropower development, regulation, and planning

2016 ◽  
Vol 27 (8) ◽  
pp. 919-932 ◽  
Author(s):  
Ahmet Ozan Celik ◽  
Volkan Kiricci
Keyword(s):  
Energy Security ◽  
Energy Demand ◽  
Critical Role ◽  
Policy Changes ◽  
Industrial Growth ◽  
The Past ◽  
Hydropower Potential ◽  
National Energy Security ◽  
Increasing Demand ◽  
Official Sources

Hydropower has a critical role in supplying the energy demand and sustaining the economic and industrial growth in Turkey. Over the past decade, several policy changes have been made to improve the contribution of hydropower in overall national energy production. Turkey is utilizing less than half of the hydropower potential and planning to employ almost full of its potential within the next 10 years. For this plan to be realized there is a need to analyze the strengths and weaknesses of the past and recent regulations. Implications from such an analysis are believed to be necessary for a better national energy strategy. This work fills this gap and presents analysis of data representing utilized and unutilized hydropower potential obtained from the official sources. The analysis coupled with the recent policy changes was discussed within the context of sustainable hydropower structure. The unutilized hydropower potential plays a crucial role in national energy security. It is also evident that hydropower alone will not be meeting the rapidly increasing demand. So far, however, researchers have shown an increased interest in unutilized hydropower potential; there has been no detailed analysis about identifying characteristics of this potential and developing strategies in terms of required technological investments. The efforts toward realizing the long-term national energy security goals need to consider establishing research development and manufacturing capabilities of domestic hydropower equipment which will fit the need to reduce foreign dependence on hydropower energy technology.

scholarly journals GIS ASSESSMENT OF THE PM10, PM2.5 AND PM1.0 CONCENTRATIONS IN URBAN AREA OF TEHRAN IN WARM AND COLD SEASONS

2014 ◽  
Vol XL-2/W3 ◽  
pp. 141-149 ◽  
Author(s):  
F. Halek ◽  
A. Kavousi-rahim
Keyword(s):  
Environmental Analysis ◽  
Urban Areas ◽  
Warm Season ◽  
Suspended Particles ◽  
Cold Season ◽  
Decision Makers ◽  
Atmospheric Models ◽  
The West ◽  
Arc Gis ◽  
The Mean

In recent years, atmospheric models, such as GIS, are used for environmental analysis and the related management for supporting the environmental decision makers in different countries. In this study, concentrations of PM<sub>10</sub>, PM<sub>2.5</sub> and PM<sub>1.0</sub> are found in urban areas of Tehran in warm and cold seasons and the data applied in the related modelling, using Arc-GIS. For this purpose, samples were collected from 42 sites in an 18 km<sub>2</sub> region located in the west and central parts of Tehran. The mean concentrations of PM<sub>1.0</sub>, PM<sub>2.5</sub> and PM<sub>10</sub> are found to be 13.14 &mu;g/m<sup>3</sup>, 22.67 &mu;g/m<sup>3</sup> and 95.72 &mu;g/m<sup>3</sup> in the warm season; and 50.12 &mu;g/m<sup>3</sup>, 70.72 &mu;g/m<sup>3</sup> and 193.86 &mu;g/m<sup>3</sup> in the cold season respectively. In this paper, with the aid of GIS, concentrations of the suspended particles were measured in 22 major hospitals, the patients in which are in contact with these pollutants. It was found the concentrations of the suspended particles were much higher in the cold season.

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