Joseph Diema Enoch | RSU (original) (raw)

Papers by Joseph Diema Enoch

European Journal of Electrical Engineering and Computer Science

Institutions globally, seek for a solution that intelligently manages the security of data withou... more Institutions globally, seek for a solution that intelligently manages the security of data without tampering or mutilations. To compete globally, It has become necessary for the educational sector in Nigeria to build a software solution to end the challenges of fake results, transcripts and certificates and the time it takes to verify their authenticity. This research aims to develop and implement a blockchain solution that would enforce the required security for the Centre for Information and Telecommunication Engineering, University of Port Harcourt (CITE, Uniport), Nigeria. In this study the various services that comprise the building of a decentralized blockchain network, the network consensus algorithm and block explorer application as a unit was put together using JavaScript and its associate libraries. The blockchain data structure was developed with the ability of proof of work, the mining of new blocks, the creation of transactions, the validation of the chain, retrieving t...

Computer Engineering and Intelligent Systems, 2019

Journal of Vibration and Wave Propagation, 2013

ABSTRACT Gas turbines play prominent role in aviation, power generation, marine, mining, petroche... more ABSTRACT Gas turbines play prominent role in aviation, power generation, marine, mining, petrochemicals, onshore and offshore oil and gas industries. Environmental factors result to degradation mechanics of the overall performance of the engine. Industrialist therefore face unplanned equipment and manufacturing downtime which is undesirable because it leads to economic losses and costly repairs. While condition monitoring is used to obtain early warning of impending equipment failure, optimization techniques such as water washing (online and offline) are used to bring the engine/equipment back to lime-light. In this work, several schedule visits were made to a gas turbine plant on industrial duty for electricity generation in an offshore thermal station at Ibeno, near Eket, Akwa Ibom State in Nigeria. Continuous monitoring of the aerothermodynamics and vibration data were taken for a period of twelve months on hourly basis to examine the state of health of the engine due to adverse offshore environmental factors. The diagnostic approach of vibration analysis, trend and performance monitoring were used with a model-based mixed data approach for optimizing the performance of the offshore gas turbine plant.A software code-named VANCANAL written in C ++ programming language was used to proactively monitor the gas turbine plant. The software displayed the operational (actual) values of all the parameters of the engine against their designed (reference) values. Once a set limit is exceeded, the software is capable of giving an alarm, signifying the need for maintenance. 31 Nomenclature .. x = Acceleration vibration amplitude, mm/s 2 . x = Velocity vibration amplitude, mm/s m = Lumped mass of rotating system, Kg C = Damping coefficient constant, N.s/m x = Displacement vibration amplitude, mm Fo = Forcing function at initial frequency, Kg.m/s 2 k = Rotor shaft stiffness, KN.m/rad ω = Engine rotational speed, rad/s ωn = Natural damped frequency of vibration, rad/s st d = Elongation, m 1 P = Compressor inlet pressure, bar 2 P = Compressor outlet pressure, bar 1 T = Compressor inlet temperature, K  2 T = Compressor discharge temperature, K  ' 2 T = Compressor isentropic temperature, C  S = Entropy, KJ/KgK

A smart microcomputer-based device was constructed and used to provide satisfactory control of el... more A smart microcomputer-based device was constructed and used to provide satisfactory control of electrically powered domestic gargets. This paper describes how to design a microcomputer-based controls device that can be used to control household equipment, which is more economical and easy to setup. The techniques and tools required for interfacing a microcomputer parallel port with other devices (peripheral) were obtained and the requirements were used to construct the smart device for controlling home appliances connected to it. The results showed that digitally controlled smart device have the potential of automating home appliances turning them on or off according to a predetermined value called a set-point.

International Journal of Computer Trends and Technology

Nigeria obviously had been experiencing a high level of thuggery, insecurity and violence, less p... more Nigeria obviously had been experiencing a high level of thuggery, insecurity and violence, less participation in its electoral processes. An alternative method to conduct its election was used during its 2015 general elections and a lot of hitches were observed. This research work presents a biometric online voting system that can enhance the electoral processes and thereby provide fast, accurate and secured election results. The result of this research work is a system that will serve as a centralized server to other nodes and will be deployed on the World Wide Web (WWW) to make the internet voting possible.

International Research Journal of Innovations in Engineering and Technology (IRJIET), 2020

Hybrid energy system is the integration of wind, solar, hydro, biomass, into one system. Over the... more Hybrid energy system is the integration of wind, solar, hydro, biomass, into one system. Over the years, electricity generation in Nigeria has depended solely on burning of cheap fuels contributing to damage to the environment. Solar energy system through direct conversion of solar irradiance into electricity can be used as electrical power source for homes and remote areas to meet its daily energy requirement. In this project, detailed design of a hybrid photovoltaic system and wind turbine system for uninterrupted power supply for a residential building in a typical urban area is presented. Accomplishment of the process depends in a variety of factors such as geographical location, weather condition, solar irradiance, and load consumption, using the software called HOMER. The project outlines in details the procedures for specifying each components of the hybrid power system and as a case study, a residence in Port Harcourt Nigeria having latitude of 4.46N and a longitude of 7.01E with typical energy consumption is selected. An average AC load of 47.97kWh/day was considered. The capacity of the PV module was 23kW, the wind turbine was 3kW, system converter of 5.94kW, and 1kWh lead acid battery was also used.

Journal of Newviews in Engineering and Technology (JNET), 2019

This paper presents specifications and design secure, scalable, available, and manageable h netwo... more This paper presents specifications and design secure, scalable, available, and manageable h network for Faculty of Engineering, University, Port Harcourt, Nigeria. The Network prototype was designed to include services that consist of an enterprise network as a unit. In addition, Artificial Neural Network technique develop a unique encryption key as an additional security for the Faculty database. Furthermore, the physical and logical network topology of the Faculty of Engineering, were successfully designed specifications from the design was used to configure network devices, servers and security features. outcome of the design was estimated to reduced network device load and the time to identify and resolve issues by a ratio of 1:8. Moreover, the o design also enhanced rapid connectivity, and of new devices did not affect the transfer of packets. Finally. The configuration and specifications used for study would serve as a prototype that can be and deployed to other Faculties or Universities

IOSR Journal of Electronics and Communication Engineering (IOSR-JECE), 2019

This Paper seek to investigate the simulation techniques used for wireless communication systems ... more This Paper seek to investigate the simulation techniques used for wireless communication systems The aim of the research is to provide a comprehensive list of various Network Simulators (General Purpose Simulators and Specific Simulators) which are available for researchers to do advanced research on Wireless Communication by reviewing the available simulation tools, highlighting the features of the simulators and using one of the best simulator to simulate and test wireless Network.. A review of Simulator was presented along with their respective features with a sample wireless simulation. The investigated techniques will aid Computer and communication expert to select the most suitable tool for simulating and testing wireless communication Systems..

Proceedings of the World Congress on Engineering and Computer Science 2019, 2019

Computer Engineering and Intelligent Systems, 2019

Institutions generally seek for a network infrastructure solution that intelligently combines voi... more Institutions generally seek for a network infrastructure solution that intelligently combines voice and data networks. To compete globally, It has become necessary for the Faculty of Engineering to build and setup a secured enterprise network solution to drive the rapid engineering and technological advancement of the University. The aim of this study is to develop a secured, scalable, available, and manageable enterprise network for the In this article the various services that comprise the enterprise network as a unit have been put together using the Hierarchical Network Model. The physical and logical network topology was designed for the Faculty of Engineering infrastructures and the results from the simulation showed that any user who tried to connect to the network and initiated http traffic were redirected to the authentication server for verification of credentials, before being allowed on the network. The result also shows that the Cisco Adaptive Security Appliance, the Core Router, the distribution switches and the integrated service routers were properly configured. The design reduced network device load and the time to identify network issues to resolve them. The configured network security provided availability, integrity, and confidentiality. This design also enhanced rapid connectivity, and the inclusion of new devices did not affect the transfer of packets. Finally, the specifications and commands used in this study is a model that could be modified and deployed for other Faculties or Universities.

International Journal of Electronics Communication and Computer Engineering, 2019

Prior to live implementation or deployment of a communication system there is need for thorough t... more Prior to live implementation or deployment of a communication system there is need for thorough testing. However, the environment to carry out the required test for either or both wired and wireless is not readily available. Therefore, the best option is to use a computer Simulator before live deployment. There are quite a number of computer simulators for wired/ wireless communication system. Among them, some are designed mainly for wireless network and others for both wired and wireless network. In this research work an extensive review of the simulation techniques used for wireless communication system was investigated to aid network and communication expert ascertain an appropriate simulator suitable for their proposed research. A review of REAL Network Simulator, Network Simulator-2 (NS-2), Network Simulator-3 (NS-3), Network Simulator (NetSim), OMNet++, JavaSim (J-Sim), ManaSim, SensorSim, NRL SensorSim and National Chiao Tung University Network Simulator (NCTUns) is presented along with their respective features with a sample wireless simulation to assist researchers in complex Wireless Communication researches.

International Journal of Academic Research and Reflection, 2018

This paper proposed two scenario, the 1 st scenario look at the analysis of transient stability s... more This paper proposed two scenario, the 1 st scenario look at the analysis of transient stability study of 330KV super-grid voltage level of Nigerian power system network. Considering Alaoja (load-bus), Onitsha (load-bus) and Afam power station (generating-bus) referred as study case, from the Nigerian 330KV transmission grid (network) for purpose of investigation and findings. The analysis is based on swing-equation model approach and power transfer capability conditions. The activities of fault initiated were recorded as "sustained fault" classified with respect to time setting of the protective relay and circuit breaker operations from Afam power generating station (GS) to the 330KV network in order to measure the behaviour of the turbine rotor-angle with the clearing time setting of the relay. The collected data were simulated via Matlab platform, with the clearing time setting of (t = 0.0, 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50) corresponding to the respective deviation of the rotor swinging angles of (rf1, rf2, rf3 and rf4). Where rf1 defined the deviation of the rotor-angle of the turbine power plant due to sustained fault condition with time, t. while rf2, rf3, and rf4; defined the restoration ability of the deviated rotor-angle (rf1) from instability to gradual progressive stability condition, with fault cleared at 2.5cycle (rf2), 6.5 cycle (rf3) and 8.25cycle (rf4) respectively. The 2 nd scenario also look at the analysis of three (3) phase short-circuit faults including: (phase A, phase B; phase C respectively) in a Matlab coded environment. The results of the simulated fault condition shows that, there is strong need for short-circuit fault-clearing time which should be quick for relay and circuit breaker responses (sensitivity and selectivity-based). The revelation of the finding also shows that system instability will be restored for improvement at fault clearing time before 0.05s. Evidently, further work will look at the investigation of incremental loading condition of the turbine power plant.

The International Journal Of Humanities & Social Studies, 2018

Nigeria is blessed with oil and natural resources but the country cannot be said to have ever had... more Nigeria is blessed with oil and natural resources but the country cannot be said to have ever had adequate supply of electric power in the history of its electricity generation. This might get worse, as the country’s population increases and economic development is calling for more demand of energy. It is therefore, imperative that adequate measures should be taken from our power plants to cater for Nigeria impending industrialization and its energy crisis which leaves many industries running at high cost and keeps many private homes in blackout. Since power generating plant is the engine room that drive industrialization, well-being and comfort for man and its environment. This work considered the analysis of cost for power generation plants case study Nigeria with the view to determine the best technique that can be used to achieve future planning installation of thermal and hydro power plant in order to optimize cost savings. Calculations and analysis were made using annual straight line depreciating reserve (ASLDR), annual diminishing value reserve (ADVR) and annual sinking fund reserve (ASFR) with the aim to input the best technique that will investigate the
true trend of cost of installation into the projected future plans between years 2011–2035 (25 years). The study revealed that ASLDR gives consistent linear values as compared to the two other techniques (ADVR and ASFR). The annual straightline depreciation reserve (ASLDR) cost of installation of afam thermal power plant in 2011 was (N185,480,000,000.00) and ASFR was N53, 914,223,700.00 while ADVR was N0.6195. In the case of Kainji hydro power plant, the ASLDR, ADVR
and ASFR was N5, 155,200,000, N0.7229.00 and N149, 848,300.00 respectively. The subsequent cost of installation of thermal and hydro power plants was obtained and conducted via excel platform from 2011-2035.

This paper presented a framework of mathematical model of double exponential voltage waveshape fo... more This paper presented a framework of mathematical model of double exponential voltage waveshape for purpose of generation of impulse voltages and currents. An impulse voltage is a unidirectional voltage which, without appreciable oscillations, rises rapidly to a maximum value and falls more or less rapidly to zero. The maximum value is called the peak value of the impulse and the impulse voltage is specified by this value. Small oscillations are tolerated provided that their amplitude is less than 5% of the peak value of the impulse voltage. An impulse voltage develops without causing flash over or puncture, is called a full impulse voltage, but if flash over or puncture occur thus causing sudden collapse of the impulse voltage is called a chopped impulse voltage. A full impulse voltage is characterized by its peak value and its two time interval, the wave – front the wave-tail time intervals. The wave front time of an impulse wave is the time taken by the wave to reach to its maximum value starting from zero value. It is difficult to identify the start and peak points of the wave, hence the wave front time is specified as 1.25 times (t 2 – t 1), where t 2 is the time for the wave to reach to its 90% of the peak value and t 1 is the time to reach 10% of the peak value. Since (t 2 – t 1), represents about 80% of the wavefront time, it is multiplied by 1.25 to give total wave front time. Evidently, some basic concept of circuit analysis including Laplace transform principle were used to solve for the double exponential voltage wave-shape, formulated from the circuit analysis. The solutions of the formulated problems represents the model for the exponential growing voltage/currents wave shape representatively. Some specific assumptions were made in analyzing this models. The results from the analysis shows an exponential increase in voltage values with respect to time which represents the growth of the voltage pattern. This result are were represented on graph using matrix-laboratory (Matlab). Most importantly, the protection of power substations against lighting over voltages is critical reliable operation of electrical network since a frequent initiation of lighting surges etc without adequate moderation of the developed overvoltage may serious damage equipment, facilities etc resulting in power supply interruptions. This means that this paper will analyse time the voltage profile with respect to time in is order to access at what point the voltage is critical not adequate for power system equipments.

This paper considered a long term electric power load forecast for twenty years (20 years) projec... more This paper considered a long term electric power load forecast for twenty years (20 years) projection, in Nigeria power system using least-square regression and exponential regression model. The model is implemented in Matlab platform with a plot in residential load demand, commercial load demand and industrial load demand in (MW). In the quest for analysis and predicting the energy (power) demand (MW) requirement for a projection period of (2013-2032), data are collected between (2000-2012), from the Central Bank of Nigeria (CBN), and National Bureau of statistics (NBS). The results obtained shows that energy generated from the respective generating station including Egbin thermal power station Lagos, Sapele thermal power station etc. are grossly inadequate. This mismatch is a major problem in power system planning and operation. The result also shows that there is deviation between predicted energy demand (MW) and available power (or capacity allocated). The predicted energy demand into the projected future of 20years is 45 5,870.2MW. The paper work also extended the prediction form into: least-square, exponential regression model. Evidently, the comparism plot for linear and exponential model which shows similar predicting pattern: particularly least-square exhibit linear behavior, while exponential shows non-linear behaviour, the linear model gives more accurate result as compared to the exponential. Cite This Article: S. L. Braide, and E. J. Diema, " Analysis of Least Square and Exponential Regression Techniques for Energy Demand Requirement (2013-2032). " American Journal of Electrical and Electronic Engineering, vol. 6, no. x (2018): XX-XX. doi: xxxxxxxx.

The research work is focused on the application of time series and survival analysis to forecast ... more The research work is focused on the application of time series and survival analysis to forecast future values from previous values to assist government or organization, plan ahead with precise data using the Kaplan Meier survival method of different classification of time series data to obtain the desired objectives. The understanding of the analysis was gained through the health statistical data that have continuous regular time study. The decision to use time series data is to ascertain the regular time series which is the major variable to determine a survival rate at any given time. A customized software application was developed in Java (NetBeans) programming language for its implementation. The research extensively carried out testing using synthesized data to execute Time Series Classification and Survival Analysis with possible outcome for user interpretation on events. The results obtained from the implemented standalone software application, were validated with other proven data and results.

The quest for knowledge is increasing in an alarming gradient; including the use of digital techn... more The quest for knowledge is increasing in an alarming gradient; including the use of digital technology. Nigeria is not left behind in this search for knowledge that is why every year JAMB (Joint Admission Matriculation Board) records thousands of application to sit for the examination into the Higher Institutions in Nigeria. The question on how we can make learning more interesting and flexible in this part of the world gave birth to this system; and the fact that almost all the higher institutions in the Niger Delta region of Nigeria have their individual websites; and there is no existing e-learning system in this region. This paper focuses on providing a customized e-learning system that offer a dynamic learning experience for students in the Niger Delta Universities.

Gas turbines play prominent role in aviation, power generation, marine, mining, petrochemicals, o... more Gas turbines play prominent role in aviation, power generation, marine, mining, petrochemicals, onshore and offshore oil and gas industries. Environmental factors result to degradation mechanics of the overall performance of the engine. Industrialist therefore face unplanned equipment and manufacturing downtime which is undesirable because it leads to economic losses and costly repairs. While condition monitoring is used to obtain early warning of impending equipment failure, optimization techniques such as water washing (online and offline) are used to bring the engine/equipment back to lime-light. In this work, several schedule visits were made to a gas turbine plant on industrial duty for electricity generation in an offshore thermal station at Ibeno, near Eket, Akwa Ibom State in Nigeria. Continuous monitoring of the aerothermodynamics and vibration data were taken for a period of twelve months on hourly basis to examine the state of health of the engine due to adverse offshore environmental factors. The diagnostic approach of vibration analysis, trend and performance monitoring were used with a model-based mixed data approach for optimizing the performance of the offshore gas turbine plant.A software code-named VANCANAL written in C ++ programming language was used to proactively monitor the gas turbine plant. The software displayed the operational (actual) values of all the parameters of the engine against their designed (reference) values. Once a set limit is exceeded, the software is capable of giving an alarm, signifying the need for maintenance.

European Journal of Electrical Engineering and Computer Science

Computer Engineering and Intelligent Systems, 2019

Journal of Vibration and Wave Propagation, 2013

International Journal of Computer Trends and Technology

International Research Journal of Innovations in Engineering and Technology (IRJIET), 2020

Journal of Newviews in Engineering and Technology (JNET), 2019

IOSR Journal of Electronics and Communication Engineering (IOSR-JECE), 2019

Proceedings of the World Congress on Engineering and Computer Science 2019, 2019

Computer Engineering and Intelligent Systems, 2019

International Journal of Electronics Communication and Computer Engineering, 2019

International Journal of Academic Research and Reflection, 2018

The International Journal Of Humanities & Social Studies, 2018

Enoch, Joseph Diema, 2021

Engineering and technology play an essential role in the economy of a nation and it had contribut... more Engineering and technology play an essential role in the economy of a nation and it had contributed immensely in enhancing and advancing the overall wellbeing of humanity. It is the bedrock for innovation and creativity in entrepreneurship and local content development. This study is aimed at investigating some of the core emerging technologies in information engineering in the twenty first century. In this research work, a concise review of these cutting edge technologies were investigated to aid researchers who are interested in these fields to ascertain how these technologies works: blockchain, the internet of things (IoT), machine learning (ML), big data analytic (BDA), embedded system, mechatronics and robotics, cloud computing, and cyber-physical systems (CPS) are presented along with their respective features with some sample implementation to demonstrate how some of the technology works. This would aid researchers in this area of study.