Spatial Optimization of Photovoltaic-Based Hydrogen-Electricity Supply Chain through an Integrated Geographical Information System and Mathematical Modelling Approach

2021 ◽  
Author(s):  
Angel Xin Yee Mah ◽  
Wai Shin Ho ◽  
Mimi H. Hassim ◽  
Haslenda Hashim ◽  
Zarina Ab Muis ◽  
...  
Keyword(s):  
Information System ◽  
Supply Chain ◽  
Mathematical Modelling ◽  
Geographical Information System ◽  
Spatial Optimization ◽  
Geographical Information ◽  
Electricity Supply ◽  
Study Results ◽  
Hydrogen Supply ◽  
Electricity Supply Chain

Abstract Hydrogen is a potential energy carrier for renewables that has a clean emission during the point of use. To implement hydrogen energy system in large-scale, a comprehensive hydrogen supply network should be built to supply the hydrogen with optimal infrastructure arrangement. Although the optimization of hydrogen supply chain has been extensively studied, the investigation of an integrated hydrogen-electricity supply chain is still lacking. Considering the interconvertibility of hydrogen and electricity, this study presents a spatial optimization framework that integrates geographical information system with mathematical modelling for the design and optimization of a photovoltaic-based hydrogen-electricity supply chain. The proposed framework allows the concurrent targeting of vehicle fuel and electricity demands as well as the identification of suitable locations for supply chain infrastructures. Case study results showed that the minimum cost of hydrogen-electricity supply chain is about 14.9 billion USD/y assuming two days of autonomy, and the cost of battery constitutes 43% of the total supply chain cost. When the days of autonomy is 8 and above, electricity storage in the form of hydrogen and reconversion through fuel cell is preferred.

scholarly journals Hydrogeological evaluation of geological formations in Ashanti Region, Ghana

2018 ◽  
Vol 37 (1) ◽  
pp. 34-50
Author(s):  
E. K. Appiah-Adjei ◽  
I. Osei-Nuamah
Keyword(s):  
Information System ◽  
Success Rate ◽  
Geographical Information System ◽  
Geographical Information ◽  
Groundwater Exploitation ◽  
Yield Zone ◽  
Ashanti Region ◽  
Hydrogeological Parameters ◽  
Study Results ◽  
Geological Formations

The success of groundwater exploitation in an area largely depends on prior knowledge of existing hydrogeological parameters such as borehole yield, overburden thickness, depth of boreholes, static water level, specific capacity and the quality of water. This study, therefore, employed Geographical Information System to assess some of these hydrogeological parameters in the Ashanti Region using the ordinary kriging interpolation method. Data on 2,788 drilled boreholes in the region were used and the assessment focused on the various geological formations in the region that comprised the Birimian, Granitoids, Tarkwaian and Voltaian formations. The study results indicate that the Birimian formation is generally within medium to high yielding potential zones (30 – 60 l/min or higher) with a high drilling success rate of 91% and average borehole depth of 53 m. The Granitoids are, mostly, within the low yielding zone (< 30 l/min) with isolated high yielding boreholes and have average borehole depth and drilling success rate of 50 m and 72 % respectively. The Tarkwaian formation, on other hand, is within the medium yield zone with a drilling success rate of 80 % whilst the Voltaian formation is mainly classified to fall within low yield zone with about 60% success rate although significant high yield zones occur within the sandstone formation underlying its westernmost part in the region. Groundwater in the region is generally potable except in a few locations within the Birimian and ranitoids,where there are problems with levels of iron, nitrate, manganese and pH. Keywords: Groundwater; Hydrogeological parameters; Geological formations; Geographical Information System; Ashanti Region

HIGH-RAISED BUILDINGS IN URBAN AREA CONTRIBUTES TO THE SNATCH THEFT INCIDENTS

2017 ◽  
Vol 3 (2) ◽  
pp. 65
Author(s):  
Anith Nabilah Mustafa ◽  
Siti Rasidah Md Sakip
Keyword(s):  
Information System ◽  
Geographical Information System ◽  
Urban Area ◽  
Statistical Data ◽  
3D Modelling ◽  
Geographical Information ◽  
Residential Areas ◽  
Development Area ◽  
Crime Reports ◽  
Index Crime

Snatch theft incidents are on the rise in Malaysia especially in the cities. It tends to happen in cities because there is a possibility to commit it and both crime and urban are often associated with each other. The aim of this paper is to find out whether the building with two or more levels in urban area contributes to the snatch theft incidents. The present study has been taken up to detect the hotspots of snatch theft in Selangor, Malaysia. The crime data were obtained by requesting and analysing the index crime statistical data from the Royal Malaysian Police (RMP). This study made use of the Geographical Information System (GIS) where its 3D modelling function to construct, assess and analyse the area with high snatch theft cases. The crime reports of 2010 until 2015 were geocoded and the crime maps were prepared in ArcGIS 10.2. It was found that the hotspot area is a mix-used development area which consists mainly of commercial and residential areas of more than two-level buildings. 

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