Abstract The hotel industry consumes quite a sizeable quantum of energy. The industry stakeholders contend with energy related challenges; this includes high cost of service provision as a fall out of electricity price as well as poor energy policy. More so, this industry remains an unattractive subsector to both the energy players and succeeding governments (in Nigeria). Due to the great importance of this industry to commerce, tourism and hospitality; it is thus necessary to conduct its en...
Abstract In situations where maximum load demand exceeds power generation capacity, frequency would drop during cases of overload; and if appropriate under-frequency load curtailment scheme is not put in place, it could cause permanent turbine damage or affect the expected working operation of electric equipment. Various existing works on load curtailment in power systems have been done to great effect using meta-heuristic and classical control techniques. This paper seeks to comparatively a...
Abstract In situations where maximum load demand exceeds power generation capacity, frequency would drop during cases of overload; and if appropriate under-frequency load curtailment scheme is not put in place, it could cause permanent turbine damage or affect the expected working operation of electric equipment. Various existing works on load curtailment in power systems have been done to great effect using meta-heuristic and classical control techniques. This paper seeks to comparatively a...
Energy consumption is a central factor taken into consideration as far as management decisions are concerned in any firm and the same goes for the banking industry. More importantly is the extent to which firms consume energy efficiently. In the light of this, this study investigates the energy benchmarking of 50 commercial bank branches in Lagos. With the aid of questionnaires and by observation and consultation with the staff of the selected bank branches, data were collected on the energy ...
Nigeria has one of the lowest electricity consumption per capita in Africa and this is because the power grid capacity has not been able to meet the ever increasing demand for electricity. To remain in business, several business enterprises rely on captive generation of electricity; thus, the hospitality industry is not left out of this experience. Primarily, this study evaluates the energy consumption trend in the Nigerian hotel industry. The energy utilization is modeled in order to apprais...
Abstract According to the United Nation Development Programme, access to modern low-cost energy systems in developing countries is important in the realization of the globally agreed developmental goals, as well as the Millennium Development Goals, and sustainable development, which would assist in the reduction of poverty and to improve the conditions and quality of life for the greater part of the world’s population. Planners have suggested hybrid energy system for the electrification of...
ABSTRACT Modern power systems are operated under various constraints which are meant to ensure an appropriate delivery of service. Meanwhile power system faces imbalance in power generation and its consumption in which the higher the load consumption the lower the frequency of operation. The governor-turbine combination will then experience a devastating reduction in its frequency of operation due to disturbance that may lead to system collapse. Both governor and turbine are included in the ...
ABSTRACT In recent times, the issue of the gap between electricity supply and demand has been addressed using distributed generation (DG) technology. When DG technology is properly placed within a transmission and distribution network, there is always improvement in power loss reduction, voltage profile and system reliability. Proper placement can be achieved by evaluating the optimal values for voltage deviation, real power loss and bus voltage. Thus, this study presents a multi-objective D...
Abstract This study evaluated the economic and environmental potentials of improving the energy efficiency of the lighting technology at the University of Lagos, Nigeria. The energy audit report for the Faculty of Engineering, University of Lagos before retrofitting shows that all lighting fixtures in the lecture rooms are the 1.2 metre inefficient fluorescent lamps. The cost effectiveness of lighting retrofitting with Compact Fluorescent Lamps (CFL) and Light Emitting Diode tube (LED) light...
ABSTRACT The PID controller still remains a widely used and very effective means of achieving stability in control systems. Generally, the performance of the controller is determined by the proportional, integral and derivative gains of the controller. The classical techniques: ZieglerNichols (ZN) open loop method; ZN closed loop method; Chien-Hrones-Reswick (C-H-R) load rejection method; and meta-heuristic technique: the fuzzy logic algorithm, are used to determine the tuning parameters of ...
ABSTRACT This paper presents an electronic Expert system platform to detect and diagnose existing and new cases of contagious diseases as they occur with minimal contact with the index patient(s) and healthcare personnel with a confidence level that can be used to initiate or suggest appropriate follow-up action(s). The aim is to use ICT tools for patient-diagnosis, raise a red flag in real-time and thus contain contagious cases which may degenerate into an epidemic by providing a way to ana...
Abstract- This study investigated the parameters space of simple and familiar quadratic equation often encounter in science based disciplines and in particular engineering. The aim is strange images creation to excite and launch novices to quest for general understanding of fractal taking parallel clue from Julia and Mandelbrot sets creation using the iterative mechanism of complex quadratic mapping. Preliminary computation of a Julia and Mandelbrot sets was performed on a square complex plan...
Abstract—In recent years, chaotic secure communication systems have attracted significant interest due to their higher unpredictability over conventional secure communications systems and simplicity of implementation. This study presents the modeling of four chaotic modulation techniques. The techniques are Chaotic Masking (CM), Chaos Shift Keying (CSK), Chaos On-Off Keying (COOK), and Differential Chaos Shift Keying (DCSK). Simulations were carried out using Simulink in Matlab environment ...
ABSTRACT An electronic component is an entity in a system which can not further sub-divided in the course of a given reliability.
ABSTRACT The research developed a reconfigurable hybridized multiprocessor system