Wind resource of Ilorin City for vortex-induced wind turbine power generation and off-grid electrification

Abstract

This study examined the appraisal of wind resources of Ilorin, Nigeria for vortex-induced wind turbine power generation and off-grid electrification. The technical potential of Modern-Era Retrospective Analysis for Research and Application, version 2 (MERRA-2) was employed as a tool to generate an estimated wind resource of Ilorin city, using five different hub-heights (10, 30, 50, 70, and 90 m). A statistical analysis of wind characteristics for 21 years from 2001 to 2021 was carried out using Weibull distribution function. The daytime and night-time wind characteristics were studied to determine prospective and investment hub-height(s). It was observed that the study area is a low wind region with a minimum and maximum mean wind speed of 2.89 m/s at 10 m and 7.68 m/s at 90 m, respectively. Wind turbines with cut-in wind speed of 2, 2.5, and 3 m have operational chances of 98%, 95% and 88%, respectively. Wind power density at 10, 30, and 50 m elevations was classified as poor while at 70 and 90 m elevations, was regarded as marginal and fair, respectively.

Design of waste stabilisation ponds for municipal effluent treatment in sobi cantonment, ilorin, nigeria

“…The waste stabilization pond (WSP) was proposed to be sited at the northern part of the community, somewhere around latitude 8°34'40.00" N and longitude 4°33'35.69"E. In selecting this appropriate site, it was ensured that the location is downwind direction and considerably distant from residential areas so that the pungent smell produced, especially in the anaerobic ponds would not disturb the lives of people living within the community (military cantonment). The prevailing wind direction of Ilorin is from the southwest cardinal point, followed by the southern cardinal point, while wind from the northern cardinal point is rare [22]. Consequently, siting the WSP in the northern part of the community as proposed will prevent the unpleasant smell in the ponds from reaching residential areas.…”