DSpace Collection:http://http://dspace.futminna.edu.ng/jspui/handle/1/1212011-08-07T07:26:19Z2011-08-07T07:26:19ZSUSTAINABLE WATER RESOURCES MANAGEMENT IN NIGERIAONEMAYIN, DAVID JIMOHhttp://http://dspace.futminna.edu.ng/jspui/handle/1/13062013-07-12T14:14:25Z2010-11-11T00:00:00ZTitle: SUSTAINABLE WATER RESOURCES MANAGEMENT IN NIGERIA
Authors: ONEMAYIN, DAVID JIMOH2010-11-11T00:00:00ZDETERl\1INATION OF THE FACTORS THAT AFFECTS ONION SPOILAGE DURING STORAGEADEYEMIOMOLADETOLULOPE, ADEYEMIOMOLADETOLULOPEhttp://http://dspace.futminna.edu.ng/jspui/handle/1/11862013-07-13T02:00:39Z2013-07-12T00:00:00ZTitle: DETERl\1INATION OF THE FACTORS THAT AFFECTS ONION SPOILAGE DURING STORAGE
Authors: ADEYEMIOMOLADETOLULOPE, ADEYEMIOMOLADETOLULOPE
Abstract: ABSTRACT
This research work was carried out to determine the factor that affects
onion spoilage during storage. Also, a model for the process was developed.
The organisms that were responsible for the spoilage of onion were isolated and
their activities monitored in an incubating hood.
The model assumed that the product of pectin hydrolysis; polygalacturonic
acid, could be used as an index of spoilage. For the model
derivation, many important factors such as temperature, moisture content, p{I
and concentration were considered.
From the correlation coefficient, R2, of the model, it could be deduced
that simulated results obtained from the mathematical model were close to the
experimentally determined values in some of the factors tested.
For example, an optimum pH of 4.47, concentration of 0.313moldm-
3
and
moisture content of 0.9 were obtained from the model as against 4.5,
0.312moldm-3 and 1 for pH, concentration, and percentage moisture content
respectively obtained from experimental analysis.2013-07-12T00:00:00ZMODELLING AND SlMULA nON of AIR poLLUTION CAUSED BY CARBON MoNOXIDE (A CASE srUDY OF SHARADA INDUSTRIAL ESTATE, KANOAMINU, UBA ALHASSANhttp://http://dspace.futminna.edu.ng/jspui/handle/1/11832013-07-13T02:00:23Z2013-07-12T00:00:00ZTitle: MODELLING AND SlMULA nON of AIR poLLUTION CAUSED BY CARBON MoNOXIDE (A CASE srUDY OF SHARADA INDUSTRIAL ESTATE, KANO
Authors: AMINU, UBA ALHASSAN
Abstract: ABSTRAct
The aim of this research work is to develop a predictive model equation that will
IvULvU.J the extent of air pollution caused by Carbon monoxide in Sharada Industrial
. te, Kano. The model equation was developed based on the principle of Guassian
distribution that accounted ror the physica'l phenomcna or di rrusion and wind
transport. The model equation obtained is given as equation 3.23. The validity of the
model was tested through siinulation using- a computer soft ware called MathCAD
professional. On comparism, the simulated result was found to be in close agreement , .
with the experimental data of the area, collected from Federal Environmental
Protection Agency (FEPA), Kano State Chapter. The concentration of the pollutant
(Carbon monoxide) in the atmosphere was found to be dependent on certain
parameters as; wind specd, downwind distancc, errective staek height, enlission rate
•
e.t.c.
'\
VB2013-07-12T00:00:00ZMATHEMATICAL MODELLING AND SIMULATION OF SCALE FORMATION IN CRUDE OIL PIPELINES.AJAYI, OLUFEMI.Shttp://http://dspace.futminna.edu.ng/jspui/handle/1/11802013-07-12T11:01:48Z2013-07-12T00:00:00ZTitle: MATHEMATICAL MODELLING AND SIMULATION OF SCALE FORMATION IN CRUDE OIL PIPELINES.
Authors: AJAYI, OLUFEMI.S
Abstract: ABSTRACT
The mathematical model for predicting the rate of scale deposit in crude oil
transportation pipeline has been carried out in this work. The term scale is a crystalline structure
usually formed in a saturated solution when the physical or chemical conditions are changed
The modeled equation Formulated was based on the principle of scaling process being in
an unsteady state condition, that is, the particle growth rate is directly proportional to the surface
The Final mathematical model developed was obtained as:
dli;!C
-~;:;;; KcMcf(0)[1- dt .
The model was simulated using polymath mathematical software. The mathematical model
rt.,. .. ''''''''· ... AI1 was validated with experimental data on scale deposit obtained from KRPC. The
"'V"'.UJ."'Jl"'ll~ of determination obtained is 0.9894 which shows that the model developed actually
preOlC'[S the scale deposit in crude oil pipelines within the range of assumptions made.
The result obtained showed that the time variation scale deposit is a function of specific
C!n1"1ra"'A area of the mineral-fluid contact area.
vi2013-07-12T00:00:00Z