Journal of Thermal Analysis and Calorimetry
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View factor for radiative heat transfer calculations between triangular geometries with common edge
Journal of Thermal Analysis and Calorimetry - Tập 148 - Trang 4523-4539 - 2023
In radiation heat transfer calculations, the view factor between surfaces is an
element of vital importance. Currently, the available technical literature does
not have an analytical expression that allows the view factor to be directly
computed for combinations of triangular surfaces. An analytical view factor
solution requires the addition of multiple integrals, given the changes in the
integrat...
The 30th anniversary of the commission for thermal analysis and calorimetry of the Romanian academy and 65 years of thermal analysis and calorimetry in Romania
Journal of Thermal Analysis and Calorimetry - Tập 148 - Trang 4567-4572 - 2023
Characterization, thermal properties and phase transitions of amazonian vegetable oils
Journal of Thermal Analysis and Calorimetry - Tập 127 - Trang 1221-1229 - 2016
Thermal profiles of buriti pulp oil (Mauritia flexuosa Mart.), tucumã pulp and
kernel oils (Astrocarium vulgare Mart.), rubber seed oil (Hevea brasiliensis),
passion fruit oil (Passiflora edulis) and ucuúba butter (Virola surinamensis)
were analyzed by thermogravimetry (TG/DTG) and differential scanning calorimetry
(DSC). Gas chromatography and calculated iodine values were performed to
determine ...
The temperature effect on the thermodynamics of the interaction of l-Tryptophan with urea and glycerol in water
Journal of Thermal Analysis and Calorimetry - Tập 148 - Trang 5521-5527 - 2023
The temperature dependence of the pair and triplet interaction between aromatic
amino acid L-Tryptophan (Trp) and glycerol (Gl) or urea (U) in an aqueous medium
was studied. For this goal, the enthalpies of solution of Trp in the water-Gl
and water-U mixtures were determined in the temperature range of
298.15–328.15 K. The heat capacity values of amino acid solution as well as the
partial molal he...
Inhibition ability of ionic liquid [Bmim][NO3], [Bmim][BF4], and [Emim][BF4] on spontaneous coal combustion
Journal of Thermal Analysis and Calorimetry - Tập 132 - Trang 1943-1951 - 2018
From TG result, [Bmim][BF4] has the best inhibition ability of spontaneous coal
combustion to delay the initial temperature, maximum temperature, and final
temperature of mass loss with oxidation process on lignite and long flame coal.
Cation of ionic liquid (IL) is the critical factor of the oxidation reaction on
lignite, and [Bmim]+ can destroy the structure of long flame coal. According to
FTIR...
Comparison of NIR spectroscopy coupled to chemometrics and derivative thermogravimetry for relative dating of human fossil bones
Journal of Thermal Analysis and Calorimetry - Tập 130 - Trang 559-565 - 2017
The possibility of using near-infrared spectroscopy (NIR) coupled to chemometric
exploratory data processing in order to obtain a fast, cheap and nondestructive
dating of human fossil bones is presented and discussed. The proposed approach
has been applied to the differentiation of human fossil bones from two
necropolises in the Middle Nile (Saggai and Geili). Principal component analysis
of the s...
Heat transfer of oil shale in a small-scale fixed bed
Journal of Thermal Analysis and Calorimetry - Tập 124 - Trang 461-469 - 2015
Heat transfer experiments on Longkou oil shale were carried out in a fixed-bed
reactor. Temperatures at different positions in the reactor were determined.
With increasing heating rate, the temperature difference between center and
exterior of the reactor increased, the time needed to get to constant
temperature decreased, while the time needed to reach final pyrolysis
temperature decreased. A pse...
Influence of ferric hydroxide on smoke suppression properties and combustion behavior of intumescent flame retardant silicone rubber composites
Journal of Thermal Analysis and Calorimetry - Tập 119 - Trang 487-497 - 2014
New silicone rubbers(SR)-based hybrid material containing intumescent flame
retardant (IFR) and ferric hydroxide (FeOOH) has been developed in order to
improve flame retardancy of SR. The synergistic effects of FeOOH with IFR in
halogen-free flame retardant SR/IFR blends have been studied by cone calorimeter
test (CCT) and thermogravimetric analysis (TG). The data obtained from the CCT
indicate th...
Characterization and compatibility study of desloratadine
Journal of Thermal Analysis and Calorimetry - Tập 115 - Trang 2407-2414 - 2013
Desloratadine (DL) is a selective antagonist of the histamine H1 receptor, which
has been widely used to treat allergic symptoms, and stands out from other drugs
in this therapeutic class because it does not cause sedative effects. In the
present study, the physico-chemical properties of DL were fully characterized
using six analytical techniques such as Differential Scanning Calorimetry (DSC),
Th...
Kinetic study of dehydration of calcium oxalate trihydrate
Journal of Thermal Analysis and Calorimetry - Tập 124 - Trang 151-158 - 2015
The dehydration of calcium oxalate trihydrate was studied using DSC method and
open sample crucibles. The dehydration proceeds in two steps where first two
molecules of water are released around 80 °C and consequently the last molecule
of water is released at a temperature around 130 °C. The kinetic analysis of
overlapping peaks was performed, and the apparent activation energy,
pre-exponential fa...
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