DETERMINATION OF ENERGY PRODUCTION POTENTIAL OF WIND RESOURCES IN LAUTECH OGBOMOSO, NIGERIA

Sanusi Y.K. and Adedokun O.

Department of Pure and Applied Physics

 Ladoke Akintola University of Technology Ogbomoso. Oyo State. Nigeria.

E-mail adedokunoluwaseun@yahoo.com

ABSTRACT

This work presents a study of wind resources in Ladoke Akintola University of Technology, Ogbomoso Area. The experimental measurement of wind speed and wind direction data were collected from Nigeria Meteorological Agency (NIMET) Oshodi, Lagos for a period of four years, 2006, 2007, 2008 and 2009. The annual mean wind speed of LAUTECH, Ogbomoso located on (Latitude 8o 5′ S and Longitude 4o 12′ W), was estimated to be 37.99m/s through the monthly wind speed and wind direction data collected. The annual energy capture potential of 1081.79MJ is obtained for a single wind power system applying the power law equation with MS visual basic programming Language. The obtained equivalent power potential of 123.99kW is a considerable amount when compared with power consumption of 1200kW utilized in Lautech Ogbomoso. It is then realized that the energy capture potential for a single wind turbine is 10.33% of the power consumption in Lautech through conventional energy source. Thus, we suggest that power potential from wind resources can be used to supplement the power potential of conventional energy in Lautech.

Keywords: Energy potential, power potential, Wind speed, Power law equation, wind turbine                         


MODELLING, SIMULATION AND CONTROL OF ETHYL ACETATE REACTIVE DISTILLATION COLUMN USING CHEMCAD

Amenaghawon, Nosakhare Andrew 1 and Ogbeide, Samuel. E 2

 Department of Chemical Engineering,

University of Benin, Benin City, Nigeria

E-mail: andrew.amenaghawon@uniben.edu /samuelogbeide@gmail.com

ABSTRACT

The modelling, simulation and control of a reactive distillation column for the production of ethyl acetate from acetic acid and ethanol has been studied using commercially available process simulation software, CHEMCAD®. The effects of key operating variables such as reflux ratio, distillate rate, feed tray location and activity model on the composition of ethyl acetate in the distillate at steady state were studied. Steady state simulation results show that if a double feeding strategy is adopted, acetic acid must be fed to the tray 2 while ethanol must be fed to tray 12 in order to obtain optimum composition of ethyl acetate in the liquid phase. Also, a reflux ratio of 12 resulted in optimum composition of ethyl acetate in the liquid phase. Increasing the distillate rate resulted in an increase in the composition of ethyl acetate in the liquid phase. Using the steady state results as an initial state, dynamic simulations were run for the purpose controlling the reboiler pressure and ethyl acetate purity. For pressure control, the Ziegler-Nichols (ZN) tuning method was used to tune the controller parameters resulting in an optimal value of integral square error (ISE)of 587.85 and corresponding values of 0.13 and 7.05 for proportional gain and integral time constant (and ) respectively. A simulation exercise such as presented in this work is very important and is increasingly becoming popular. This is because simulation of mathematical models of chemical processes is safe, cheap and less time demanding. This has also been helped by the development of computers with high computational capabilities.

Keywords; Steady-state, Dynamics, Control, Reactive distillation, Ethyl acetate


INVESTIGATING THE STRENGTH AND POROSITY CHARACTERISTICS OF SOME FIRED CLAYS IN EDO AND DELTA STATES

*S.A. Agbalajobi1 and I.S. Omoijuanfo2

2Department of Mines, Federal Ministry of Power and Steel, Abuja, Nigeria

Email: wisdammy@yahoo.com

ABSTRACT

Investigation aimed at determining the strength and porosity characteristics of some fired clays in Edo and Delta States was carried out. Eighteen different clay samples were taken from six locations in both states. Three samples were taken from each location, analyzed and the result averaged. The six locations were Afuge/Ojavu, Usen/Arhenwen, Uguoriahi/Ovbere in Edo State and Ozarra/Ewebi, Ozalla/Ezeko and Iguoriakhi/Ogbomoba in Delta and Edo State. The clay samples were mixed repeatedly, quartered and analyzed to test their porosities and fired strength characteristics, using American Standard Thermal Analysis Method at the Soil Science Test Laboratory of the Ahmadu Bello University, Zaria. The results of the analysis showed that clay deposits in Afuze/Ojavu, Usen/Arhenwen, and Uguoriakhi/Ovbere in Edo State are good for brick works. They have low porosities ranging from 0.95% to 24.31% and high fired strength. On the other hand, clay deposit from Ozarra/Ewebi, Ozalla/Ezeko and Iguroriakhi/Ogbomoba in both Edo and Delta State are good for pottery. They have high porosities ranging from 13.0% to 38.74% and low fired strength.

Key Word: Clay, refractory, porosity, pottery, fired strength, temperature    


INVESTIGATION INTO THE USE OF LOCAL CLAYS IN DRILLING OPERATIONS

P.N. Onwuachi-Iheagwara

Department of Petroleum and Gas Engineering

Delta State University, Abraka, Oleh Campus, Nigeria

pniheagwara@gmail.com

ABSTRACT

Local clays were treated with chemical additives. Their rheological and thixotropic properties evaluated to determine their suitability for drilling operations. Properties examined included the Swelling Index, Apparent Viscosity, Plastic Viscosity and the Yield point.  Result shows that that the Nigerian indigenous clays are suitable. More research is recommended.

Keywordrheological properties, Nigerian clay, drilling clays


Table of Contents

Abdur-Rahman Olalekan Olayiwola……………………………………………………………………………………………           1-17

New Testament Environmental Ethic and Environmental Sustainability in the Niger Delta

Isiorhovoja, U. Osbert and Banwune  Ejime .D………………………………………………………………………              18-25

Koranic Versus Christian Mission Education Systems and Uneven Educational Development in

Nigeria, 1842-1977: National Policy on Education to the Rescue

 A.I. Ajayi and M.S. Jayeola-Omoyeni……………………………………………………………………………………….              26-32

Towards Sustainable Heritage Site Management: Case Study of Inikpi Site

Orga, D. Y & Gana, J. N……………………………………………………………………………………………………………..            33-37

Development Theories: from Modernization to Globalization and It’s Impact on Africa

Nduonofit, Larry-love Effiong and Udochu, Eke……………………………………………………………………                38-45

Society, Media and Character- Formation: A Focus on the Nigerian Youth

Austin Chibueze Okeke……………………………………………………………………………………………………………..            46-56

The Arab Spring and the Ascendance of the Muslim Brotherhood in the Middle East:

An Analysis of Contemporary Challenges in Nigeria

George I.J. Obuoforibo………………………………………………………………………………………………………………             57-70

Synergy Between Racial Differentiation and Social Inequality  in Human Societies

Rasak Bamidele…………………………………………………………………………………………………………………………..              71-79

Oral Forms as a Vehicle for the Articulation of Urhobo Cosmology

Emusi, Samson Ikuvwe Ariegbe………………………………………………………………………………………………              80-85


ORAL FORMS AS A VEHICLE FOR THE ARTICULATION OF URHOBO COSMOLOGY

Emusi, Samson Ikuvwe Ariegbe

Department of Religion

Delta State University, Abraka

Email: revemusi@yahoo.com

ABSTRACT

This paper presents aspects of the cosmology of Urhobo people, as articulated in Urhobo oral forms. The paper examines five poems (Texts I – V) for their thematic contents which exemplify aspects of the cosmology of the Urhobo poetry. Aspects of the cosmology identified include: the essence of life, the uniqueness of the individual, the efficacy of paternal blessings, objectivity in assessing situations and attitude to physical prowess. To these, the paper strongly posits that they bear semblance to other cultural elements in Africa.


SYNERGY BETWEEN RACIAL DIFFERENTIATION AND SOCIAL INEQUALITY IN HUMAN SOCIETIES

Rasak Bamidele

Department of Sociology and Psychology

Fountain University Osogbo,Osun State.

E-mail: delerasak@yahoo.co.uk

ABSTRACT

It is impossible in the present environment to ignore the role of ideas about Skin colour in shaping and determining the social and political relations of societies all over the globe. During the past two decades theoretical and political debates have raged over the status of race and racism as social and analytical concepts. There has been much debate about why the notion of race is still widely used in both popular and social scientific discourses when it is widely accepted that ‘races’ as such do not exist. This has reached the stage when some writers argue vehemently that the notion of ‘race’ must be bracket every time it appears in social scientific discussion. This paper examines skin colour and social differentiation in human society. The analysis is intended to provide the basis of a theoretical framework for analyzing contemporary form of racism and the social relations that arises on the basis of racial categorization.

Key words: Race, Minority group, Social Stratification, Social Differentiation, Skin Colour and Social Inequality.


THE ARAB SPRING AND THE ASCENDANCE OF THE MUSLIM BROTHERHOOD IN THE MIDDLE EAST: AN ANALYSIS OF CONTEMPORARY CHALLENGES IN NIGERIA

George I.J. Obuoforibo

Department of Political Sciences and Administrative Studies

University of Port Harcourt, Port Harcourt

ABSTRACT

We found out in the course of this paper that the Arab Spring and the ascendance of Muslim Brotherhood in the Middle-East was due to a reaction to the modernizing instincts of post-colonial leaders of the Muslim dominated Arab countries. After independence the modernizing elites of virtually all predominantly Muslim countries undertook radical reforms of family law, notably to empower women. They targeted inter-alia the aspects of Islamic family law relating to polyandry, unilateral repudiation distribution of inheritance. A host of new laws were adopted to promote women’s right including the criminalization of polygamy. This however, did not go on without some level of opposition and resistance. To achieve the goal of re-Islamizing post-colonial Muslim societies, they adopted diverse strategies, from peaceful proselyzation to armed opposition. Their ultimate ambition is to capture political power. It is true that the Islamists ascendance through the ballot box is the most visible outcome of the Arab Spring. There is however, more to it than what meets the eye. Of particular importance is their strong opposition to secular ethos in favour of fundamentalist Muslim ethos that would not be in the interest of non Muslims and other secular minded Muslims. It is against the background of the above scenario that one have to appreciate the ascendance of Muslim Brotherhood in the Middle-East and the contemporary challenges in Nigeria being made visible by a Muslim Sect the Boko Haram. It would therefore not be out of place for one to say that Boko Haram sect and its heinous crimes against the people and nation was more of a dangerous diversion of real issues that impinges on the national project. It is the fuel subsidy crises that one could say tend to strike a code with the Arab Spring in the Middle-East and North Africa. A popular disenchantment and demonstrations against the Nigerian government on removal of fuel subsidy with the subsequent revelation of the rot that has engulfed the entire fabric of the Nigerian state structures at all level, have unfortunately ended whatever legitimacy the Nigerian project might be said to have had in the past. In actual sense the Boko Haram’s major preoccupation is to Islamize the entire northern region and make its states to be governed in accordance with Islamic laws and injunctions which is very much in line with the fundamentalist struggle in the Middle East and North Africa.


SOCIETY, MEDIA AND CHARACTER- FORMATION: A FOCUS ON THE NIGERIAN YOUTH

Austin Chibueze Okeke

Department of Theatre and Film Studies

University of Nigeria, Nsukka

E-mail:austinchibueze@yahoo.com

ABSTRACT

This essay examines and categorizes certain influences often encountered by today’s Nigerian youths and which have also helped to largely affect their decisions and actions. These youths are logically innocent but also highly impressionable as they readily get excited over experiences that are potentially adventurous. They have an innate desire to explore and conquer challenges, and whatever seems to fascinate them in this regard easily wins them over. The study establishes that the Nigerian youths are victims of circumstances, as they have emerged as products of inimical environmental factors which have wrongly shaped their universal worldview. The study therefore proposes a great and consistent measure of adult supervision over the affairs of the youth. It also recommends governments’ censorship of media contents in order to curb the flagrant influence of such, and float programmes which will occupy and or engage the youths in meaningful vocations. Above all, the study submits that the vehicle of the theatre art could also be explored in order to detract and refocus the effort and attention of these young minds.


DEVELOPMENT THEORIES: FROM MODERNIZATION TO GLOBALIZATION AND IT’S IMPACT ON AFRICA

Nduonofit, Larry-love Effiong and Udochu, Eke

Department of Sociology, University of Port Harcourt

School of General Studies, Michael Okpara, University of Agriculture, Umudike

E-mail: aminoacid395@yahoo.com, ek­_boy4good@yahoo.com

ABSTRACT

Development theories are all focused especially on the development of Africa. Changing times and tides show that it is now a global world, perhaps, village. The thrust of modernization theory is just about Africa supplanting her values and norms with modern ones so as to leap-frog, perhaps to the age of “high mass consumption”. Thus, dependency theory however stands as a contradiction to modernization theory and emphasizes the underdevelopment of Africa on the basis of her social relations with the West. Thus, the work is particularly focused on the impact of the new age on Africa’s development. The work questions the era or stage of imperialism, and argues that globalization as the highest stage of imperialism is particularly concern with further undermining the development of Africa. It is thus concluded here that Africa as a matter of fact must re-evaluate and re-assess her social cum economic relationship with the West in this new age, even as globalization advances to a full moon before she loses her soul as well as her spirit.

Keywords: Globalization, Modernization, Dependency, Capitalism, Colonialism, Underdevelopment, Development, Africa.


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