Research Article
Design and Realization of a Mini Station for Measuring Solar Irradiation, Temperature and Humidity at the Higher Institute of Technology (IST) Mamou
Issue:
Volume 13, Issue 2, June 2025
Pages:
31-41
Received:
14 April 2025
Accepted:
24 April 2025
Published:
29 May 2025
Abstract: In this work, we designed, built and tested a mini station for measuring solar irradiation, temperature and air humidity at the Higher Institute of Technology (IST), Mamou. For this purpose, we designed a device far from any shading, consisting a 2m in three-piece of mast topped by a squaresh tube bar to which the pyranometer, temperature and humidity sensor are attached, a metal box serving as a shelter for the irradiation and temperature dataloggers, the photovoltaic system equipment and a 20Wp solar panel to supply the system with energy. A grounding device protected the entire system. After parameterization and direct measurements during the test period from August 12 to 20, 2024, seven hundred and forty-two (742) lines of data were recorded and plotted for analysis. The following results were obtained: A coverage rate of 100% and around 75h of sunshine. However, the days 13, 14, 16, 19 and 20 were very sunny, with a maximum value of 1224W/m², a minimum of 1W/m² and an average of 142W/m². Minimum and maximum temperatures were 18°C and 31.7°C respectively, with an average of 11.17°C. For humidity, the maximum (99.9%) was recorded almost every morning and evening during the same period, the minimum 7.4% (August 15 at 3:48 P.M) with an average of 95.34%.
Abstract: In this work, we designed, built and tested a mini station for measuring solar irradiation, temperature and air humidity at the Higher Institute of Technology (IST), Mamou. For this purpose, we designed a device far from any shading, consisting a 2m in three-piece of mast topped by a squaresh tube bar to which the pyranometer, temperature and humid...
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Research Article
Feasibility and Performance Analysis of Solar Energy Integration into National Grid for Improved Power Supply, Using Umuezerokam Community, Nigeria as a Case Study
Ezenwa Obiora Nnaemeka*,
Okeke John Chikaelo,
Odeh Calistus Princewil,
Okoye Chibuzo Ndubuisi,
Anyali Noel Onyeka,
Chukwunonso Nnamdi Chidiogo
Issue:
Volume 13, Issue 2, June 2025
Pages:
42-61
Received:
13 April 2025
Accepted:
28 April 2025
Published:
18 June 2025
DOI:
10.11648/j.sjee.20251302.12
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Abstract: Nigeria, as a developing country, faces persistent challenges with epileptic power supply, particularly in rural communities. This study investigates the technical feasibility and performance of integrating solar energy into Nigeria’s national grid to enhance electricity supply, using Umuezerokam community in Imo State as a case study. The objective is to assess the solar energy potential and system performance of a 750 kW grid-tied photovoltaic (PV) system through advanced simulation using the Solargis-pvPlanner tool. Key performance indicators, including Global Tilted Irradiation (GTI) averaging 140–160 kWh/m²/month, specific PV output ranging from 99.2 to 125 kWh/kWp, and a Performance Ratio (PR) averaging 80.7%, were analyzed based on site-specific solar and meteorological data. The results reveal that Umuezerokam experiences an annual average solar irradiance of approximately 4.6 kWh/m²/day, making it highly suitable for solar electricity generation. Simulation outcomes show that the proposed solar PV system can produce about 1.019 GWh annually, meeting the estimated energy needs of over 300 households and improving daily electricity supply from an average of 5–6 hours to about 11 hours. The study concludes that solar energy integration into the national grid is technically feasible and capable of significantly enhancing electricity supply in rural Nigeria. Furthermore, adopting such solutions would contribute to Nigeria's sustainable development goals by promoting the use of renewable energy. These findings provide critical insights for policymakers, investors, and local authorities seeking to address energy poverty through clean energy technologies.
Abstract: Nigeria, as a developing country, faces persistent challenges with epileptic power supply, particularly in rural communities. This study investigates the technical feasibility and performance of integrating solar energy into Nigeria’s national grid to enhance electricity supply, using Umuezerokam community in Imo State as a case study. The objectiv...
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Research Article
Modeling and Simulation of a Trapezoidal Solar Collector
Mamadou Lamine Coly*
,
Bou Counta Mbaye,
Mamadou Seck Gueye,
Omar Ngor Thiam,
Joseph Sarr
Issue:
Volume 13, Issue 2, June 2025
Pages:
62-70
Received:
4 May 2025
Accepted:
20 May 2025
Published:
19 June 2025
DOI:
10.11648/j.sjee.20251302.13
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Views:
Abstract: Tunnel dryers typically employ flat double-sloped or dome-shaped collectors, which function adequately for single- rack systems but require separate components for multi- rack setups. Our innovative solution introduces an integrated trapezoidal collector that utilizes sidewalls as absorption surfaces, eliminating the need for additional units while optimizing space utilization. This study presents a comprehensive approach to designing and analyzing the trapezoidal solar collector through combined mathematical modeling and numerical simulation. Using Python's odeint library to solve thermal equations and design parameters, we identified critical interdependencies between collector components. Results demonstrate significant performance benefits: the trapezoidal design achieves 15-20% greater efficiency than conventional rectangular configurations at operational air velocities of 3.5 m/s. Under practical 900 W/m² solar irradiation, the system maintains optimal drying conditions by combining 2.5 m/s internal airflow with 4 m/s ambient wind, consistently delivering 60°C output air ideal for sensitive products like fish. The trapezoidal geometry addresses two key industry challenges - space efficiency for multi-bay systems and thermal performance optimization - by transforming sidewalls into active absorption surfaces. These findings suggest retrofitting existing tunnel dryers with trapezoidal collectors could substantially improve both energy efficiency and production throughput, particularly for temperature-sensitive food processing applications. The Python-based simulation framework further provides a valuable tool for system optimization across varying climatic and operational conditions.
Abstract: Tunnel dryers typically employ flat double-sloped or dome-shaped collectors, which function adequately for single- rack systems but require separate components for multi- rack setups. Our innovative solution introduces an integrated trapezoidal collector that utilizes sidewalls as absorption surfaces, eliminating the need for additional units while...
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