Academic paper publication describing varieties of clay soil which is applicable to used based on their conductivity values

1. SEMINAR PRESENTATION
Good day my Lecturers and my colleagues
I am GARBA Faiz Muktar
I am here to present a PROJECT titled:
DETERMINATION OF THERMAL
CONDUCTIVITY OF MOIST AND DRY CLAY
SAMPLES

2. STATEMENT OF THE PROBLEM
WE HAVE DIFFERENT VARIATION OF
THERMAL CONDCUTIVITY VALUES OF
DIFFERENT SAMPLE WHICH HAS BEEN
STUDIED WITHOUT CONSIDERING CLAY
SAMPLES OF DIFFERENT TYPES AND ITS
MOIST AND DRY CONTENT,THUS
NECCESITATED THIS STUDY

3. Aim and Objectives of the Study:
Aim/ Objectives of the Study
This work will employ lee disc apparatus to determine the
thermal conductivity of different clay sample with and without
their moisture content objectives include;
1. To determine the thermal conductivity of selected dry clay
samples
2. To determine the thermal conductivity of selected moist clay
sample
3.To determine the emissivity of soil samples
4.to determine the resistivity of selected soil samples
5. To determine heat flow of selected dry clay samples
6.To compare the values of moist and dry sample of the clay
sample

4. Significance of the Study
This work will help in providing a guide on the
factors to be considered while selecting materials
to be used in agriculture science, soil science
aquaculture, geothermal engineering, hydrology
engineering, telecommunication science and
also provides knowledge on how heat flow in
different clay materials.

5. Limitation of the Study
Geographically this research work is
limited to vicinity of Jalingo, Taraba State.
Effectively this gives a length of 11km that
will be considered. During this field work
some areas will be restricted because they
are not accessible due to the terrain

6. CHAPTER THREE
MATERIALS AND METHODS

7. The following materials were used
Three copper discs A B and C with a hole drilled in them.
Three thermometers T
A
, T
B
and T
C
which are to be
inserted in the holes.
The roofing ceiling sample prepared in the form of disc
having the same diameter as the copper disc.
A heat disc (heating element).
A wooden frame for clamping the disc together.
A voltmeter, an ammeter, a rheostat, a plug key and a 12volt
battery.
A stop watch.

8. CHAPTER THREE M
3.4 Experimental Setup
Key
Thermometers

9. RESULTS AND DISCUSSION
Sample Computed
values for
thermal
conductivity
𝑊/𝑚𝑘
Computed
values of
thermal
resistivity
𝑊−1/𝑚𝑘
Computed values
of emissivity
W/k𝑚2s
Dry Sample
From
University
farm
0.004245 235.570 11.920
Moist sample
from
0.013100 76.3358 76.3358

10. Sample Computed values
for thermal
conductivity
𝑊/𝑚𝑘
Computed values
of thermal
resistivity
𝑊−1/𝑚𝑘
Computed values
of emissivity
W/k𝑚2s
Dry Sample From
G.R.A
0.00289 346.02 9.920
Moist sample
from G.R.A
0.13330 7.5350 10.92

11. Sample Computed
values for
thermal
conductivity
𝑊/𝑚𝑘
Computed values
of thermal
resistivity
𝑊−1
/𝑚𝑘
Computed values
of emissivity
W/k𝑚2s
Dry Sample From
Mile six
0.00245 400 12.20
Moist sample
from Mile six
0.7857 1.2787 14.90

12. From the results in table 4.6,4.9 and 4.12 it is observed that among the
samples studied (i) Clay from mile six provide the lowest thermal
conductivity values in its dry form (highest thermal resistivity) followed
by dry sample from government reserve area (G.R.A) from the result of
this research.
(ii) The better clay sample when dried in terms of thermal conductivity is
clay sample from university farm while the better clay when dried with
higher thermal insulation is clay from mile six.

13. RECOMMENDATION After carefully studying the electrical properties of
Schottky diode, I have the following recommendations to make:
(i) Work on comparison of the thermal conductivity values by other
methods and apparatus such as Searle’s apparatus can be studied
(ii) Other clay samples across the metropolitan city of Jalingo can also be
explored
(ii) Effects of variation of temperature on the thermal conductivity of these
samples can be studied