scholarly journals Thermal Response at Room Temperature and Device Applications of Two Wood Species in Akure, South Western Nigeria

2021 ◽  
Vol 10 (1) ◽  
pp. 12-15
Author(s):  
M.A. Adekoya ◽  
A.O. Adelakun ◽  
A.A. Faremi ◽  
S.S. Oluyamo

Thermal properties (Density, Thermal conductivity and Specific heat capacity) play important impact in the formation of devicesmade of wooden materials. This study examines the room temperature thermal response of ten bulk samples from the species of Pterygota macrocarpa and Antiaris africana wood species found in South Western Nigeria. The samples were processed into appropriate shapes to fit into the parallel plane arrangement to determine the thermal properties. Temperature dependent models were used to obtain the specific heat capacities of the samples within a temperature variation of 308.25𝐾 - 310.00𝐾. The results revealed that the thermal properties (thermal conductivities and specific heat capacities) increase as temperature increases for all the bulk samples considered. The results of the research showed that the selected wood samples could find useful applications in industrial insulating devices. Keywords: Wood material, Lee’s disc apparatus, Temperature and Thermal properties.

2003 ◽  
Vol 31 (3) ◽  
pp. 189-200 ◽  
Author(s):  
Jeffery D. Lewins

Many of the conventional results obtained when optimising the performance of an intercooler during compression using a perfect gas model can be obtained when the restrictions of the model are relaxed to an ideal gas. That is, we now have temperature-dependent specific heat capacities but retain the equation of state pV = RT. This note illustrates the theme.


2017 ◽  
Vol 49 (2) ◽  
pp. 117-128 ◽  
Author(s):  
Nouari Saheb ◽  
Umer Hayat

In this work, we report temperature-dependent thermal properties of alumina powder and bulk alumina consolidated by spark plasma sintering method. The properties were measured between room temperature and 250?C using a thermal constants analyzer. Alumina powder had very low thermal properties due to the presence of large pores and absence of bonding between its particles. Fully dense alumina with a relative density of 99.6 % was obtained at a sintering temperature of 1400?C and a holding time of 10 min. Thermal properties were found to mainly dependent on density. Thermal conductivity, thermal diffusivity, and specific heat of the fully dense alumina were 34.44 W/mK, 7.62 mm2s-1, and 1.22 J/gK, respectively, at room temperature. Thermal conductivity and thermal diffusivity decreased while specific heat increased with the increase in temperature from room temperature to 250?C.


2002 ◽  
Vol 391 (1-2) ◽  
pp. 185-196 ◽  
Author(s):  
P.J. van Ekeren ◽  
L.D. Ionescu ◽  
V.B.F. Mathot ◽  
J.C. van Miltenburg

2013 ◽  
Vol 115 (3) ◽  
pp. 2071-2077 ◽  
Author(s):  
S. Wang ◽  
X. M. Jiang ◽  
Q. Wang ◽  
H. S. Ji ◽  
L. F. Wu ◽  
...  

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