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[Advances in Intelligent Systems and Computing] Advanced Computing and Systems for Security Volume 883 (Volume Eight) || Remote Sensing Technology for Evaluation of Variations in Land Surface Temperature, and Case Study Analysis from Southwest Nigeria
摘要： Recent studies have shown that evaluation of the changes in the Land Surface Temperature (LST) of any area can be a re?ector of changes in urbanisation trend, industrial activities, population change and natural factors. Subsequently, many researches have evolved over time, especially with development in remote sensing, digital image processing and geographical information systems. This chapter is aimed at providing information on the relevance and challenges of remote sensing as a geospatial technology that is capable of being used for monitoring LST at different spatial and timescales. The case study analysis indicated that the results from the remote sensing processing of the imageries re?ect signi?cant in?uence of the spatial resolutions of selected imageries. The challenges of huge image data gaps, cloud cover, coarse spatial and temporal resolution, limited night-time data for evaluation of night-time urban heat island—for both technical and security reasons, in?uenced the reliability of the study results. The study recommended policies for improvement in the applications and utilisation of the geospatial technology in many developing countries, including Nigeria based on its strengths.
关键词： Nigeria,Image sensors,Land surface temperature,Image analysis
更新于2025-09-23 15:22:29
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Motives for solar photovoltaic (PV) adoption in urban Nigeria
摘要： Microgeneration technologies like residential solar photovoltaic (PV) systems have been shown to have immense potential for energy security and climate change mitigation. At over 50% private power systems ownership, the majority of urban Nigerian households rely on conventional self-generation utilising expensive petrol and diesel-powered generators. Despite the high upfront costs of a sizeable PV module, some households are choosing such sustainable alternative power. This paper investigates the motives for PV adoption in urban Nigeria following innovation diffusion and adoption theories. Using interviews, PV adopter data were collected on key drivers for uptake and results analysed. Field survey analysis established the key motives for uptake as power outages, energy cost-savings, including generator use fuel fraud, awareness and access to finance while key barriers include high capital costs and lack of finance. The results point to the need for regulatory and political intervention. Effective PV awareness creation campaigns and promotional strategies would also be necessary in the changing face of electricity supply in Nigeria.
关键词： energy security,PV adoption,urban Nigeria,climate change mitigation,solar photovoltaic
更新于2025-09-16 10:30:52
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Novel thermodynamic efficiency indices for choosing an optimal location for large-scale photovoltaic power generation
摘要： Sustainable energy is a current key priority across the globe. Hence, renewable energy sources have been widely accepted as potential substitutes for fossil fuels in the existing energy infrastructures. A recent report showed that photovoltaic power generation constituted around 100 GW out of 2378 GW of the global renewable power capacity installed in 2018. Consequently, various researchers are investigating how the increasing utilisation of photovoltaics can be handled in order to reduce future environmental impacts; whilst leveraging their operational zero-emission. From a circular economic paradigm, recycling, reuse and reduction strategies are often adopted to improve the sustainability of systems. This study proposes novel thermodynamic ef?ciency indices as a resources reduction strategy. By selecting an optimal location for large-scale photovoltaic power generation (LSPPG), the same amount of resources (such as land space, materials, energy) will achieve higher utilisation ef?ciency. In this study, actual two-year solar radiation and temperature data were sourced from Nigerian Meteorological Agency, Abuja. A probability distribution modeling was used to generate statistical mean values for solar radiation and temperature based on the classical almost sure central limit theory. Then, Photovoltaic modeling and simulation code was used to simulate the power generation characteristics of the LSPPG. Comparative analyses of the results for a 5 MW (MW) LSPPG showed that statistical mean value of power generation, energy ef?ciency index and exergy ef?ciency index range from 0.76 to 0.99 MW, 1.315 to1.254 and 1.298 to1.237, respectively, across the locations studied. Overall, the thermodynamic ef?ciency indices can complement the current laboratory-based rating of the photovoltaic modules in order to establish the environmental, economic and policy rationales for sitting a LSPPG. This would ultimately improve the cradle-to-cradle management of LSPPG installations based on resources reduction strategy.
关键词： Solar energy,Thermodynamic ef?ciency indices,Nigeria,Photovoltaic modules,Modeling and simulation
更新于2025-09-12 10:27:22