http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/98 2026-09-15T22:05:51Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31873 Title: Assessment of Electrical Energy Consumption in Some Selected Tertiary Institutions Administrative Buildings in Niger State Authors: Musa, Titus D.; Akanmu, Williams P.; Jimoh, Jimoh A.; Ejiga, Anthony E. Abstract: High electrical energy consumption in public buildings and institutions poses a significant challenge, particularly in developing countries like Nigeria. Inadequate empirical studies on building energy use have resulted in a lack of electrical energy data, especially in tertiary institutions where bulk metering is common. This study aimed to assess the electrical energy consumption in selected administrative buildings of tertiary institutions in Niger State, with the goal of reducing electrical consumption and improving energy efficiency. Experimental data collection involved direct field measurements using a real-time Efergy wireless energy (EW4500) monitoring device. Current transformer sensors were attached to the main distribution panels of the administrative buildings at the Federal University of Technology Minna, Niger State Polytechnic Zungeru, and Niger State College of Education Minna. The objectives included evaluating electrical energy consumption, comparing total consumption across buildings, and analyzing energy consumption patterns. Results indicated that the Senate building at FUT Minna had the highest consumption rate at 2604.7 KWh/m², followed by Niger State Polytechnic Zungeru at 2579.1 KWh/m², both exceeding the global benchmarks of 128 to 130 kWh/m² set by the Chartered Institute of Building Services Engineers (CIBSE) and the Building Energy Efficiency Guideline for Nigeria (BEEGN). In contrast, COE Minna’s administrative building, with consumption levels averaging 1579.1 KWh/m², generally fell within these benchmarks. The elevated energy consumption at FUT Minna and Niger State Polytechnic Zungeru was primarily attributed to operational inefficiencies, such as the continuous operation of HVAC systems and equipment during non-essential hours, even when buildings were not fully occupied. Hourly consumption patterns revealed peak usage during early working hours, with significant seasonal variations; however, both FUT Minna and Niger State Polytechnic Zungeru exhibited high energy use during off-peak periods, reflecting poor energy management practices. To address these inefficiencies, the study recommends conducting comprehensive energy audits and installing energy-efficient appliances at FUT Minna and Niger State Polytechnic Zungeru. Additionally, implementing smart metering, occupancy sensors, and optimized HVAC controls would significantly enhance monitoring and reduce energy consumption. These measures are critical for improving energy efficiency and ensuring sustainable operations in both institutions. 2024-11-29T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31872 Title: Thermal Comfort Performance of Thermoelectric Peltier Module Refrigeration System in Built Environment Authors: Musa, Titus D.; Ejiga, Anthony E. Abstract: According to data provided by the International Energy Agency, nearly 1.6 billion air conditioning (A/C) systems were operating globally in 2017, accounting for approximately 6% of the overall final energy consumption. To address the energy and economic challenges posed by such extensive use of air conditioning for thermal comfort, it is imperative to identify alternative solutions that can effectively operate in warm-humid environments. This study explored the thermal comfort performance of thermoelectric module refrigeration (TEMR) system in built environment; installed in a single-room facility in Minna, Niger State, Nigeria, over a one-month period. The experimental setup involved a test room measuring 1.3 m x 2.6 m x 3 m, equipped with aluminum roofing, an asbestos ceiling, an aluminum-framed window, and a steel door. The TEMR system was assessed for its ability to regulate indoor temperature and humidity under varying external climatic conditions. The TEMR system operated at a constant current of 6.4A, with data collected at specific intervals throughout each day. Results indicated that the TEMR system significantly reduced indoor air temperature and relative humidity, particularly during peak operational hours (12:00 pm to 2:00 pm). Weekly variations showed temperature drops from 37°C to 22°C and humidity reductions from 60% to 32% within 60 minutes of operation. These findings align with ASHRAE Standard 55-2017 for indoor environmental quality. The study concludes that the TEMR system is effective in improving indoor climatic conditions, offering a sustainable and energy-efficient cooling solution. Its performance, influenced by external climatic factors, demonstrates potential for broader application, particularly in developing regions where long- term, low-maintenance, and environmentally friendly cooling solutions are needed. 2024-11-29T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/31871 Title: Assessment of Thermal Comfort in Selected Female Hostels at Gidan Kwano, Federal University of Technology Minna, Nigeria. Authors: Titus M. D. Abstract: The construction and operation of hostel buildings in Nigerian tertiary institutions often overlook thermal comfort, a critical factor influencing occupant health, productivity, and overall sustainability. This study is aimed to assessed the thermal comfort in selected female hostels at the Federal University of Technology, Minna, Nigeria. A quantitative, descriptive research design was adopted. Data were collected using AirVisual Pro, a high-accuracy monitoring device that measured indoor temperature and relative humidity across three hostel categories, A (6 occupants/room), B (4 occupants/room), and C (2 occupants/room) within the Gidan-Kwano campus for three months. Measurements were analyzed using descriptive statistics, graphs chart analysis (ASHRAE Standard 55 and CIBSE Guide A benchmarks). Diurnal variations were examined descriptively through hourly mean pattern analysis. Findings revealed that while mean indoor temperatures in most hostel rooms fell within or marginally above the ASHRAE comfort range of 22°C–26°C, relative humidity consistently exceeded recommended limits. Specifically, mean relative humidity values were 83.4%, and 82.2% for Categories A and B respectively surpassed the ASHRAE and CIBSE standard while category C with relative humidity value of 63.6% was within the standard comfort zone of 40–70%. The study concludes that hostel indoor environments require urgent intervention to align with global thermal comfort standards. The study recommends integrating mechanical ventilation, dehumidification systems, and climate-responsive design strategies, alongside occupant education and regular environmental monitoring. These findings provide empirical evidence for improving thermal comfort and advancing sustainable building management in institutional housing. 2026-06-30T00:00:00Z http://irepo.futminna.edu.ng:8080/jspui/handle/123456789/30773 Title: Secondary school administrators’ awareness and preference of using smart building security features for safe school initiative management in Minna, Nigeria Authors: Salawu, N. M.,; Agbo, A. E. Abstract: Effective security of lives and properties in an educational institution is an important task that can affect the effectiveness and relevance of service delivery. This study investigated secondary school administrators' awareness and preference level of using smart building's security features for safe school initiative management in Minna, Nigeria. The intension of this research is to investigate the extent of secondary school administrators' level of familiarity and preference for adopting smart building security features for school safety management in Nigeria. To achieve the aim of the research, questionnaires were served to 20 registered and regulated secondary schools in Minna. The targeted respondents were drawn from both public and private schools with two school administrators selected per school for the best opinion coverage making a total of 40 questionnaires administered in all The process of selecting the schools follows a systematic procedure (Balloting) which supports random sampling of the schools in the targeted geographical area of the research. The data obtained were analysed based on frequency distribution and percentages rating. The result obtained shows that 35% of the respondents agreed that, they have very high awareness level of using video surveillance also known as Closed Circuit Television (CCTV) as smart building security feature for safe school initiative management while 22.5% of the respondents agreed that, they have very low awareness level about the use of CCTV for the same purpose. In addition, the result analysis also shows that the most preferred smart building security features for safe school initiative management is the Uninterrupted Power Supply (UPS) system with 47.5% of the respondents rating it very high. On the contrary, 17.5% of the respondents agreed that, they have a very low preference level about the use of UPS system for the same aim. It is therefore recommended that more efforts should he deployed towards ensuring uninterrupted power supply in secondary schools for effective safe school initiative management by the school administrators since most of the highly aware smart building security features by the respondents cannot function efficiently without constant power supply. Description: Journal Article 2024-01-31T00:00:00Z