Modest Residential Building Cooling Load Components Analysis


Ibrahim, U.H., A.A. Baba and Idris, M.H.
Department of Mechanical Engineering,
Federal Polytechnic Mubi, Adamawa State, Nigeria.
E-mail: heldabuk@yahoo.com
ABSTRACT: In developing countries like Nigeria, the exacerbation of thermal discomfort in a
living space is closely associated with high cost of air conditioning systems and the epileptic
power supply. This paper therefore attempts to determine the contribution of each of the cooling
load component of a modest residential building with the view of meliorating thermal comfort by
manipulating the components that contribute significantly to the total cooling load of the
building. To achieve the set objectives, the sources of heat load both internal and external were
identified and their relative contributions to the total cooling load were determined. The results
show that external heat load which encompasses heat gain through walls, windows, roof, and
infiltration heat load, contributes about 87% of the total cooling load of the building. Significant
reduction of the external cooling load by passive measures will not only make the occupants of
the building to have relief comfort but can also reduce the size, cost and the power requirement
of the air conditioning system to be used in the building. Amelioration of thermal comfort by
mitigation of the external cooling load of a building using passive measures is recommended.


Design and Modelling of Strategic Information System 1Okpeki U. Kazeem and 2Adebari F. Adebayo


1Department of Electrical/Electronics/Computer Engineering, Delta State University, Oleh Campus
2Department of Computer Engineering, Yaba College of Technology, Yaba Lagos.
E-mail:omakazeem@yahoo.com
ABSTRACT: In this paper the design, modelling and management of information system is
presented. It takes into consideration the basic component that makes an effective
management information system. Many of information system use in many organizations
today are very large, inefficient, expensive to maintain and to a very large extent do not meet
the real needs of the organization. New applications have been added and new technology
deployed without thought given to the system functionality, performance, reliability and
security. With this strategy today’s systems will benefits from the advancement made in
system engineering and complexity management.


Construction Work Items’ Unit Rate Estimation Model for Building Contractors’ Projects


Pricing in Nigeria
Inuwa I. Ibrahim1, Iro A. Ibrahim1 and Dantong J. Sam2
1Quantity Surveying Programme, Abubakar Tafawa Balewa University, Bauchi-Nigeria.
2Department of Architecture, University of Jos, Plateau State, Nigeria.
E-mail: inuwaibrahimibrahim@yahoo.com
ABSTRACT: Contractors’ success amongst other things relies on how they are able to relate
and estimate the cost of their resources as a basis in determining their projects price in a
competitive market. Construction project pricing is highly exorbitant in Nigeria. Wrong methods
of estimation and flaws discovered in the unit rates of some completed building projects raises
questions on the accuracy of the cost estimates arrived at by consultant quantity surveyors.
Moreover, the discrepancy in the plethora of literatures on cost estimation makes estimation
complex and confusing. The study therefore aims at establishing a construction work items unit
rate estimation model for building contractors project pricing in Nigeria. This study uses historic
survey methods through an extensive literature search. The foremost thing to consider when
building unit rate is to establish the prime cost for each work item. Unit rate is the summation of
the prime cost, overhead charges and profit for each work items in a project. Therefore, Unit
Rate =N + (N×Z); where N-is prime cost and Z-is % overheads and profits. Mathematically; N=
MC+LC+PC. Numerical contribution of each constituent per unit of work is: Mc ≥ 0; Lc 􀀀 0; Pc ≥
0 and; Zc 􀀀 0. The model is comprehensible, its applicability is compatible with any
circumstance, it facilitates error free rates and can improve productivity. The model can be use:
for effective management of construction project; for teaching and understanding the basic
principle in rate computation and; in attaining uniformity in unit rate computation in the
construction industry.


Structural and Optical Properties of Electrodeposited CdS Thin Film


D. G. Diso1, M. A.Y. Hotoro1, T. S. Bichi1 and I. M. Dharmadasa2
1Department of Physics, Kano University of Science & Technology, Wudil, Kano-Nigeria.
2 Electronic Materials & Sensors Group, Materials & Engineering Research Institute
Sheffield Hallam University, Sheffield S1 1WB, United Kingdom.
E-mail: dgdiso@yahoo.co.uk,
ABSTRACT: Cadmium sulphide (CdS) thin films have been deposited on glass/conducting glass
substrates using low-cost two electrode aqueous electrodeposition (ED) method. The structural
and molecular structure of the resulting films has been characterized using X-ray diffraction
(XRD) and Raman spectroscopy. The XRD results indicates that both as deposited and heat
treated ED-CdS layers are polycrystalline and have a hexagonal crystal structure with
preferential orientation along the (101) direction, while Raman measurement confirmed the two
peaks at 303cm-1 and 608cm-1 corresponding to the first and second order longitudinal optical
phonons (1LO) and (2LO) respectively. X-ray photoelectron spectroscopy (XPS) studies have
been performed to detect the photoelectrons emitted from the sample surface and compare the
results obtained on electrodeposited CdS with the vacuum cleaved CdS. The XPS spectra
measurement identified two distinct Cd 3d peaks (i.e. 3d5/2 and 3d3/2) with their binding energies
at ~405 and ~412 eV respectively. The S 2p peak has a binding energy of ~162 eV. The results
indicate that the composition of CdS layers is 52.9:47.1.The bandgap of the heat treated films
gives 2.42 eV using optical absorption measurements which are close to the bulk CdS. The
results from the 3D-AFM measurement shows that the material tends to grow as columns (nanorods)
leaving spaces in between in some areas


The Role of Engineers in Combating the Effect of Climate Change in Africa


Odu O. Godwin
Department of Mechanical & Production Engineering,
Delta State University, Abraka, Oleh Campus, Delta State, Nigeria.
E-Mail: odugodwin@gmail.com
ABSTRACT: This paper presents an overview of the effects of global warming in Africa as it
affects our environment. The challenges of climate change were discussed. The paper focuses
further on future climate change and variability and their impact on key sectors: water, food
security and agriculture, health, and biodiversity and ecosystems. Finally, the paper summarizes
the role of engineers in combating climate change, in a bid to control and reduce global
warming around the world.


The Optimization of Natural Gas for Power Generation in Nigeria: A Sustainable Synergy with Other Options


Koso I. Idigbe * and P N. Onwuachi-Iheagwara **
*Faculty of Engineering, University of Benin, Benin City, Nigeria
Department of Petroleum and Gas Engineering, Delta State University, Abraka, Oleh Campus
Email: *kiidigbe@gmail.com; **pniheagwara@gmail.com
Abstract: This paper posits natural gas as the major option for the sustainable generation of
electric power in Nigeria; a key input to the effective development of this nation. At present, the
generation of power, the upstream sector of the electrical power industry, is beset with
challenges and difficulties, which can be met with a synergy of natural gas and other options.
This paper presents an effective optimization of power synergy; the key to unlocking unlimited
megawatts of electricity for Nigeria. This will be enhanced through best practices,
innovativeness and a free market system.


Power System Simulation Model Based on Probability Analysis

Chukwuagu I. and B.O. Anyaka
Department of Electrical Engineering,
University of Nigeria, Nsukka, Nigeria.
E-mail: chukwuaguifeanyi@yahoo.com
ABSTRACT: By virtue of the vital nature of electric power, both to our economic and personal
well being, a power system is expected to supply electrical energy as economically as possible,
and with a high degree of quality and reliability. The developing countries in general place
higher reliability standard on the performance of electricity supply. However, there has been no
significant study in the context of the Nigeria power sector to power system simulation model
based on probability analysis the technical appraisal of the state power systems in general is
confined to examining the Plant Load Factor (PLF) as a measure of capacity utilization only.
The present study is a modest attempt to evaluate the reliability of the Nigeria power system in
the framework of a theory-informed methodology power system simulation model based on
probability analysis.


Kinetic Model for the Copolymerization of Methyl Acrylate and Propylene


Wauton, I. and Gumus, R.H.
Department of Chemical and Petroleum Engineering,
Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria
E-mail: isankpruke@yahoo.com
ABSTRACT: A copolymer from propylene and methyl acrylate would produce an alternating
copolymer of highly desirable properties for paint and allied chemical industries; indicative of
the properties of the individual homopolymers. In this work, a kinetic model was developed for
the copolymerization of propylene and methyl acrylate. A radical initiator was used for the
initiation to form a couple and subsequent propagation steps presented. Transfer specie used for
the termination step. The various rate expressions and subsequent kinetic models were
presented, thereby showing the relationship between various polymerization parameters with
time. Such parameters includes: concentration of initiator, concentration of growing polymer
chain and concentration of dead polymer chain. The models developed will prove invaluable if
annexed in the design, control and optimization of the polymer production process.


Table of Contents

Host Plant Infection by Botrytis cinerea affects the Interaction between Aphids Laboratory Accounting as a Tool for Management

Udeajah, V.N, and Nworie A                                                                                                    1-17

The Relevance of Simple Anthropometric Parameter of Body Mass Index (BMI)

in Assessing Nutritional Status of Secondary School Students in

River State, Nigeria

Bienonwu Emmanuel Osemeke                                                                                               18-24

Foot Length Ratios Compared to Stature in a Mixed Gender, Non Pathological

Sample

Lilian Ebele Chris-ozoko                                                                                                          25-32

Microbial Contamination of Water Stored in Earthen Pots within University

of Agriculture Environs

Akande, T., Agbulu C.O                                                                                                           33-51

A Study on Antibacterial Activities of Aloe vera Leaves, Stems and

Roots on Some Selected Organisms

Etusim, P.E., Okafor, E.E., Nwachukwu, N.C., Melariri, P.E., and Ogbonnaya C.I.                     52-59  

GIS Analysis of the Growth Distribution of Typhoid Fever Cases in Lagos State

(A Case Study of All General Hospitals in Each

Local Government Area of Lagos State)        

Omogunloye O.G., Qaadri J.A., Oladiboye O.E and Omogunloye H.B.                                                60-74

Phytochemical Analysis and Antifungal Activities of Gynandropsis gynandra

(Spider flower) and Buchholzia coriacea (Musk tree) (FAM: Capparidaceae)

on Some Common Fungal Isolates

Ogunmefun O.T. and Ajaiyeoba E.O.                                                                                       75-85

A Study on the Toxicity of the Ethanol Extract of Moringa oleifera Seed Oil

on Simulium Larvae

Etusim, P.E, Uwom, K.U, Melariri, P.E, Ibeh, O.O and Ogbonnaya, C.I                                     86-91

Influence of Rainfall and Salinity on the Spawning Cycle of Nematopalaemon

hastatus in River Nun Estuary, Bayelsa State, Niger Delta.

Ngodigha S.A, Digha O.N. and Adeyemo A.                                                                            92-101

Intestinal Nematode Parasites amongst School Children Attending Some Primary

Schools in Mbaitoli Local Government Area, Imo State, Nigeria.

Kalu M.K, Eugene C.N, Ifeanyi A.O                                                                                          102-110

and their Parasitoids

Yahaya, S.M. and Fellowes, M.D.E                                                                                            111-123

Studies in Biopesticidal Potential of Ethanol Extract of Zanthoxylum zanthoxyloides

(LAM) Zepernick & Timleron Callosobruchus maculatus  FInfestation in Stored

Vigna unguiculata (L) Walp

Mohammad G. and Patience N.E.                                                                                           124-131


THE EFFECTS OF CRUDE OIL EXPLOITATION ON FOOD PRODUCTION AND THE HEALTH OF OLOIBIRI IN HABITANT BAYELSA STATE, NIGERIA


1Digha O.N. and 2David O.
1Department of Geography
Isaac Jasper Boro College of Education Sagbama, Bayelsa State
2Department of Educational Management Rivers State
University of Science and Technology, Port Harcourt.
E-mail: dighaopaminda@yahoo.com, okilodavid@yahoo.com
ABSTRACT
The study examined the effects of oil exploration and exploitation
activities on food production and the health of the inhabitants of
Oloibiri environ in Bayelsa State. Two objectives and two hypotheses
were generated. The hypotheses were tested at 0.5 significant level of
probability. A sample of 390 people from three communities were
randomly selected. The data-set were selected using the effects of oil
exploration activities on human health and food production determinant
questionnaire (EDEHFO), designed and used to elicit the data for the
study. The one-way analysis of variance (ANOVA) was used for the data
analysis with the aid of the statistical package for social sciences
(SPSS). The results based on the first hypotheses which states that
there is a significant difference in food production resulting from oil
exploration and exploitation activities are accepted. Since F-cal (0.25)
< F-Crit (3.00) at 2 and 689 degree of freedom at 0.05 level of
significance – by and large the results indicates a negative impact on
the environment of the study area.


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