Modelling, Analysis and Design of a Multi-Storey Helipad-Car Park: a Proposal for Canaan Land

The rapid growth of urbanization and the ever increasing population of urban centers in modern age of today, has brought about increase in the use of cars, roads and other transportation facilities. This singular factor has created constrains on traffic management system and parking of cars in most of these areas. That is why new innovations and technology need to be put in place to help address this issue and reduce some of the constrains on traffic management system of urban centers and also help improve their parking system. One of these innovations is the introduction of multi-storey car park. The multi-storey car park is one major innovation put in place to help with traffic management system of urban centers in most developed countries and introducing this kind of innovation into the developing countries such as Nigeria would help the traffic management system of major urban centers, bring less environmental hazards with the attendant social and economic gains for the society. That is why this research aims at the modelling, analysis and design of a multi-storey car park which would improve the traffic management of a functional modern society like that of Canaan land. Autodesk Revit and Robot soft wares are adopted and the results obtained are promising and replicable

Wind energy evaluation for electricity generation using WECS in seven selected locations in Nigeria

This paper statistically examine wind characteristics from seven meteorological stations within the North-West (NW) geo-political region of Nigeria using 36-year (1971–2007) wind speed data measured at 10 m height subjected to 2-parameter Weibull analysis. It is observed that the monthly mean wind speed in this region ranges from 2.64 m/s to 9.83 m/s. The minimum monthly mean wind speed was recorded in Yelwa in the month of November while the maximum value is observed in Katsina in the month of June. The annual wind speeds range from 3.61 m/s in Yelwa to 7.77 m/s in Kano. It is further shown that Sokoto, Katsina and Kano are suitable locations for wind turbine installations with annual mean wind speeds of 7.61, 7.45 and 7.77 m/s, respectively. The results also suggest that Gusau and Zaria should be applicable for wind energy development using taller wind turbine towers due to their respective annual mean speeds and mean power density while Kaduna is considered as marginal. In addition, higher wind speeds were recorded in the morning hours than afternoon periods for this region. A technical electricity generation assessment using four commercial wind turbines were carried out. The results indicate that, while the highest annual power is obtained with Nordex N80–2.5 MWas 14233.53 kW/year in Kano, the lowest is in Yelwa having 618.06 kW/year for Suzlon S52. It is further shown that the highest capacity factor is 64.95% for Suzlon S52–600 kW in Kano while the lowest is 3.82% for Vestas V80–2MW in Yelwa

Performance evaluation of wind turbines for energy generation in Niger Delta, Nigeria

This paper evaluates wind energy potentials of seven selected locations spreading across Niger-Delta region of Nigeria using wind speed data that extend over 9 to 37 years and subjected to 2-parameter Weibull distribution functions. The performance of four wind turbine models ranging from 35 to 500 kW was simulated in all the locations considered. The results show that the performance of all the wind energy conversion systems gave the least energy output values at Ikom. In addition, annual energy output ranged from 4.07 MWh at Ikom to 145.57 MWh at Ogoja with Polaris America (100 kW) and Zeus Energy (500 kW) wind turbines respectively. It was also observed that, irrespective of the site, G-3120 (35 kW) wind turbine has the highest capacity factor among the models considered. Therefore, for wind energy development, G-3120 model or wind turbine with similar rated wind speed would be most suitable in all the locations. The number of inhabitants that can be served by the energy produced using G-3120 turbine in each location was estimated

Generation of a typical meteorological year for north–east, Nigeria

The Finkelstein–Schafer statistical method was applied to analyze a 34-year period (1975–2008) hourly measured weather data which includes global solar radiation, dry bulb temperatures, precipitation, relative humidity and wind speed in order to generate typical meteorological year (TMY) for five locations spreading across north–east zone, Nigeria. The selection criteria are based on solar radiation together with the dry bulb temperature values and representative typical meteorological months (TMMs) were selected by choosing the one with the smallest deviation from the long-term cumulative distribution function. A close-fit agreement is observed between the generated TMY and long-term averages. The TMY generated will be very useful for optimal design and performance evaluation of solar energy conversion systems, heating, ventilation, and air conditioning (HVAC) and other solar energy dependent systems to be located in this part of Nigeri

Solar energy applications and development in Nigeria: Drivers and barriers

In this study,current perspectives of solar energy utilization as a renewable energy option in Nigeria are examined and discussed from the stand point of sustainable development.The country being a world crude oil and natural gas producer,is over-dependent on the seenergy sourcesforelectricitygeneration and otherenergyapplications.Thishascurrentlyputthecountryatariskofimpendingenergycrisesin view ofthefastdiminishingfossilreserves,inadequaterefining capacitytomeetdomesticconsumption and seriouscasesofenergyinsecurityinrestiveregionswhereexploitationsexist.Inspiteofthevast fossil basedenergyreserves,ameagerelectricityproductioncapacitythatisputat4517.6MWasat December 2012isgeneratedtosupporttheeconomyofateemingpopulationofapproximately170 million people.Nigeriaisnaturallyendowedwithabundantdepositofrenewableenergyresourcesof which solarenergyfromtheSun(beingtheworld0s mostabundantandpermanentenergysource)has for decadesbeenenjoyingveryhighlevelutilizationbyruraldwellersforagriculturalprocessingsinthe country.Itisvastlydepositedwithanestimated17,459,215.2millionMJ/day of solar energy falling on the country0s 923,768km2 land area(approximaterangeof12.6MJ/m2/day in the coastal region to about 25.2 MJ/m2/day in the far north). The different applications to which solar resources have been put and the extent of utilization(including details of existing projects)in the country were thoroughly investigated and discussed.The possible motivations for extensive development of solar energy conversion systems in Nigeria area l so discussed and some of the barriers and challenges are presented. Step sand policy measures to over come the barriers and facilitates the utilization of this resource are suggeste

Effect of Exchange Rate on Stock Price Movement in Nigeria

Теорії обмінного курсу в країнах, що розвиваються, припускають, що між обмінним курсом і рухом цін на акції існує позитивний зв’язок. У Нігерії знецінення місцевої валюти, на думку багатьох, не призвело до очікуваного збільшення експорту чи виробництва в промисловому секторі, не кажучи вже про ціни акцій компаній. Тому це дослідження було спрямоване на дослідження впливу обмінного курсу на рух цін на акції в Нігерії та напрямок причинно-наслідкового зв’язку між ними. Для аналізу були використані дані про обмінний курс, процентну ставку, рівень інфляції, валовий внутрішній продукт та індекс фондового ринку в Нігерії. Тест Auto Regressive Distributed Lag (ARDL) використовувався для оцінки можливості існування довгострокового зв’язку між обмінним курсом і курсом акцій. Результати встановили довгостроковий і значний зв’язок між обмінним курсом і рухом цін на акції в Нігерії (F:12,89 >Io & I1Bound, P-value Io & I1Bound, P-value < 0.05 for LEXR, LGDP LINF). However, the negative coefficients of the regressors; especially exchange rate, run contrary to existing theories on the benefits of depreciating exchange rates. This means that Nigeria has not fully reaped the expected benefits from devaluation of her local currency over the years. A unidirectional causality between exchange rate and stock price movement was also discovered. Causation flows from exchange to stock price (P-value < 0.05 for LEXR). This further suggests that most firms in Nigeria lack the absorption capacity to transform the accruing gains of currency depreciation to increased productivity and exports

A Typical Meteorological Year Generation Based on NASA Satellite Imagery (GEOS-I) for Sokoto, Nigeria

Energy remains the convergence point of most critical economic, environmental, and developmental issues confronting the wodd at the moment. Clean, efficient, stable, and sustainable energy seiVices are ideal for global prospe1ity. Energy is paramoru!l to achievi11g Nige1ia's Vision 20:2020 needed by the coruttly to be among the top 20 industiialized nations of the world. Lack of energy or its insufficiency in an economy is a potential source of social and economic pove1ty [I]. In general, a larger prop01tion of energy is found to be consumed in buildings in Nigeria as is the case in many countries. There is thus a growing concern about energy consrunp

The effect of climate change on solar radiation in Nigeria

In this study, global solar radiation over Nigeria was simulated under an enhanced atmospheric CO2 level using the International Centre for Theoretical Physics (ICTP) Regional Climate Model version 3 (RegCM3) for the period 1981 to 2100 with ECHAM5 GCM as the lateral boundary conditions. The simulated seasonal global solar radiation bias for the RegCM3 with NIMET and NASA observed datasets in the control period are of similar magnitudes and showed a mixture of persistent positive and negative biases ranging between �10% and 30%. The model generally underestimates solar radiation (biases �10% to �30%) across the whole country in most of the months. In addition, it overestimates radiation (biases +2–30%) over the northern region of the country. Alongside the present climate (1981–2010), three future periods were considered viz: period 1 (2011–2040), period 2 (2041–2070) and period 3 (2071–2100) for the potential future changes. The seasonal potential future changes in period 1 (i.e. potential future changes with respect to 2040) showed a reduction in the range of 0% (North) to 3.27% (South) whereas more reduction in global solar radiation is observed in period 2 (i.e. 2041–2070 minus present climate) having general decrease ranging from 0.11% to 3.39% with the least value in April (Middle-belt) and the largest in the South zone (March). Potential future changes in period 3 (i.e. 2071–2100 minus present climate) is generally characterized with mixed increase and decrease in global solar radiation across the country than the previous two periods (1 and 2). For the annual potential future changes, RegCM3 model predicted a decrease in solar radiation towards the end of the century with more reduction found in the South zone and the least in the North region. Furthermore, future changes in global solar radiation across the zones in all the periods are however found to be insignificant at p 6 0.01

Coping strategies of Nigerian medical students during the COVID-19 pandemic

Objective: This study assessed the coping strategies of Nigerian medical students during the COVID-19 pandemic.Design: We conducted an online descriptive cross-sectional study among medical and dental students attending three of the largest Colleges of Medicine in the Southwestern zone of Nigeria.Settings: Our study involved students across the pre-clinical and clinical levels of the three Colleges of Medicine.Participants: We selected the respondents through a purposive sampling technique and disseminated questionnaires applied using an online survey platform (Google forms https://forms.gle/19yfEzehJKwsme759). A total of 1010 par-ticipants out of 2404 eligible students completed the questionnaires accurately, giving a response rate of 42%.Methods: The Brief-COPE questionnaire assessed the participants' coping strategies (approach and avoidant) during the COVID-19 pandemic. We conducted a bivariate analysis using the chi-square test and multiple regression analysis (p&lt; 0.05) to determine the predictors of avoidant coping strategies.Results: Respondents mean age was 21.8±2.9 years, results were presented as Odds Ratios(OR) at 95% confidence intervals(CI). About 95% of respondents employed an approach coping strategy, while the minority(5%) adopted an avoidant coping strategy. Females were three times more likely to employ an avoidant coping strategy (OR=3.32 (95% CI 1.67-6.21) compared to male students.Conclusion: This study reveals that the majority of the respondents employed an approach coping strategy towards the COVID-19 pandemic. Females were more likely to employ an avoidant coping strategy. We recommend gender-specific programs to help medical students cope with the COVID-19 pandemic

A Typical Meteorological Year Generation Based on NASA Satellite Imagery (GEOS-I) for Sokoto, Nigeria

Computer simulation of buildings and solar energy systems are being used increasingly in energy assessments and design. This paper evaluates the typical meteorological year (TMY) for Sokoto, northwest region, Nigeria, using 23-year hourly weather data including global solar radiation, dew point temperature, mean temperature, maximum temperature, minimum temperature, relative humidity, and wind speed. Filkenstein-Schafer statistical method was utilized for the creation of a TMY for the site. The persistence of mean dry bulb temperature and daily global horizontal radiation on the five candidate months were evaluated. TMY predictions were compared with the 23-year long-term average values and are found to have close agreement and can be used in building energy simulation for comparative energy efficiency study