Journal of the Ghana Institution of Engineering (JGhIE) <p>The Journal of the Ghana Institution of Engineering (JGhIE) is a peer reviewed, open access, multidisciplinary engineering journal published by the Ghana Institution of Engineering (GhIE) that is dedicated to expanding access to research information on engineering, technological developments, and related applied sciences. The journal aims to provide a standard, highly visible, international platform for publishing engineering and related scientific research projecting excellence in engineering practice and technological advancements.<br />The journal is published quarterly, and its readership include engineering practitioners and allied professionals, scientists, civil and public servants, researchers, academics, students, industrialists, and consultants. The journal welcomes submissions in all areas of engineering and related scientific disciplines in the following broad categories:</p> <ul> <li>Transport and Infrastructure</li> <li>Energy (Generation, Distribution and Efficiency)</li> <li>Mining, Processing and Manufacturing</li> <li>Water, Drainage, and Irrigation</li> <li>Environment and Sanitation</li> <li>Information and Communication Technology</li> <li>Robotics and Artificial Intelligence</li> <li>Engineering Education and Professional Development</li> <li>Engineering Project Financing and Management</li> <li>General Engineering Practice</li> <li>Engineering and Climate Change</li> </ul> en-US Wed, 15 Jun 2022 09:28:44 +0000 OJS 60 Optimum axle load limit on the trans west African highway – a case study of Ghana’s coastal corridor <p>The Economic Community of West African States recently reviewed regulations on axle weights. Ghana rolled out its new regulation in January 2014. The allowable axle weights in the new regulation are much stiffer (e.g., the allowable single axle limit is now 11.5 tonnes compared to 13.5 tonnes, previously). Regional freight haulers contend that the new regulations make Ghana’s corridor less attractive to trade. However, the road agency sees it as a way of maintaining and extending road pavement life. The goal of this study is to find the optimum axle limit that is economically feasible to create a balance between road preservation and port competitiveness. Data collected on 47,959 individual trucks from July 2010 to December 2013 were analyzed. A calibrated Highway Development and Maintenance model for Ghana was used to estimate the total transport cost. The analysis showed that 19 % of trucks were overloaded, and footwear was the most frequently overloaded commodity. Overloading was common with all trucks, but 3-axle trucks experienced the highest extent of overloading. It was found that if the road agency maintains a high road maintenance standard (e.g., International Roughness Index = 3 m/km), then the optimum axle limits will be from 12-13 tonnes, 20-22 tonnes, and 28-29 tonnes for single axle, tandem axle, and tridem axle, respectively. However, at a low maintenance target (IRI = 7 m/km), the optimum limits need to be 12.5 tonnes and 18-19 tonnes for single axle and tandem axle, respectively, while the optimum tridem limit remains unchanged.</p> Ernest Tufuor Copyright (c) 2022 Journal of the Ghana Institution of Engineering (JGhIE) Fri, 08 Jul 2022 00:00:00 +0000 Study of polymer flooding and intelligent well technology for improved oil recovery <p>The application of Intelligent Well Technology (IWT) to improve efficiency of a polymer flooding operation has been studied under three cases using a 3D model implemented in reservoir simulation software. The base case was the simulation study of a polymer flood with a relatively low oil recovery, which led to the least produced water into the producer well. The second case was incorporating IWT into the producer well where production control was achieved via the operation of inflow control valves (ICVs) installed in each productive segment of the wells. The reactive control strategy responded to changes in segment water cut, which led to improved sweep and, hence, oil recovery at 63 %. A third case was considered where injection control was performed via the same conditions as the producer well but, in this instance, the outflow control valves (OCVs) responded to changes in water cut at the injection wells. This oil recovery under injection control also improved to 68 %, but with higher water cuts. The study results showed that a better sweep of oil is possible despite the high water cuts when downhole segment conditions are adequately responded to. Thus, concluding that polymer flooding can be improved by incorporating IWT through production or injection control for a multi-layered heterogeneous reservoir.</p> Kwame Sarkodie, Olawale Oyenubi, Gbenga Oluyemi, Yen Adams Sokama-Neuyam, Patrick Boakye Copyright (c) 2022 Journal of the Ghana Institution of Engineering (JGhIE) Sat, 25 Jun 2022 00:00:00 +0000 Electrification Planner for Ghana Using Open-Source Web GIS <p>Energy system planning provides information, such as electrification rate and access, essential to match demand and supply of energy. As countries strive to rapidly grow their economies and increase the living standards of its citizens, energy planning system is essential to keep track of assets, accessibility, adequacy, availability, and distribution of energy resources across locations targeted for development. In Ghana, the Ghana Energy Development and Access Project (GEDAP) was mandated to provide up to 100 % electrification rate to the citizens by 2020. While this time has elapsed, public information system showing the spatial distribution and statistical analysis of electrification rate and access in communities and local administrative areas remain scanty. Such decision support system, which can inform energy investment decisions and policy formulation by local and international investors is not readily available, impeding on the Government of Ghana’s (GOG) electrification expansion efforts. It also hinders the nation in attaining the United Nation’s (UN) Sustainable Development Goal (SDG) 7. Thus, the aim of this study was to develop a decision support system on electrification rate in Ghana. The study used energy access data and open-sourced Geographical Information System (GIS) to map the spatial distribution and provide statistical analysis of electrification rate in the country. The resulting information was connected to a WebGIS that can provide access to query, manipulate, and visualize electrification rate in the counting. The developed system estimated that, presently, Ghana has an electrification rate of 85.16 % as of November 2020. This information, and the system in general, will aid decision makers to make swift decision and provide geospatial evidence-based report in achieving 100 % electrification rate in the country. </p> Edward Boamah, Akwasi Afrifa Acheampong Copyright (c) 2022 Journal of the Ghana Institution of Engineering (JGhIE) Wed, 15 Jun 2022 00:00:00 +0000