Isobaric Specific Heat Capacity Measurement for Kerosene RP-3 in the Near-Critical and Supercritical Regions

2011 ◽  
Vol 57 (2) ◽  
pp. 263-268 ◽  
Author(s):  
H. W. Deng ◽  
K. Zhu ◽  
G. Q. Xu ◽  
Z. Tao ◽  
C. B. Zhang ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Specific Heat ◽  
Specific Heat Capacity ◽  
Heat Capacity Measurement ◽  
Capacity Measurement ◽  
Isobaric Specific Heat

Experimental Study on the Specific Heat Capacity Measurement of Water-Based Al2O3-Cu Hybrid Nanofluid by using Differential Thermal Analysis Method

2019 ◽  
Vol 15 ◽  
Author(s):  
Andaç Batur Çolak ◽  
Oğuzhan Yıldız ◽  
Mustafa Bayrak ◽  
Ali Celen ◽  
Ahmet Selim Dalkılıç ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Specific Heat ◽  
Specific Heat Capacity ◽  
Thermophysical Properties ◽  
Volume Concentration ◽  
Pure Water ◽  
Heat Capacity Measurement ◽  
Experimental Results ◽  
Hybrid Nanofluid ◽  
Capacity Measurement

Background: Researchers working in the field of nanofluid have done many studies on the thermophysical properties of nanofluids. Among these studies, the number of studies on specific heat are rather limited. In the study of the heat transfer performance of nanofluids, it is necessary to increase the number of specific heat studies, whose subject is one of the important thermophysical properties. Objective: The authors aimed to measure the specific heat values of Al2O3/water, Cu/water nanofluids and Al2O3-Cu/water hybrid nanofluids using the DTA method, and compare the results with those frequently used in the literature. In addition, this study focuses on the effect of temperature and volume concentration on specific heat. Method: The two-step method was used in the preparation of nanofluids. The pure water selected as the base fluid was mixed with the Al2O3 and Cu nanoparticles and Arabic Gum as the surfactant, firstly mixed in the magnetic stirrer for half an hour. It was then homogenized for 6 hours in the ultrasonic homogenizer. Results: After the experiments, the specific heat of nanofluids and hybrid nanofluid were compared and the temperature and volume concentration of specific heat were investigated. Then, the experimental results obtained for all three fluids were compared with the two frequently used correlations in the literature. Conclusion: Specific heat capacity increased with increasing temperature, and decreased with increasing volume concentration for three tested nanofluids. Cu/water has the lowest specific heat capacity among all tested fluids. Experimental specific heat capacity measurement results are compared by using the models developed by Pak and Cho and Xuan and Roetzel. According to experimental results, these correlations can predict experimental results within the range of ±1%.

The evaluation of the influence of heat-exchange gas on the uncertainty of specific heat capacity measurement

Metrologiya ◽  
2020 ◽  
pp. 43-52
Author(s):  
Tatiana A. Kompan ◽  
Viktoriya V. Vlasova ◽  
Valentin I. Kulagin
Keyword(s):  
Heat Capacity ◽  
Heat Exchange ◽  
Specific Heat ◽  
Specific Heat Capacity ◽  
Thermal Capacity ◽  
Heat Capacity Measurement ◽  
Capacity Measurement ◽  
Measuring Procedure ◽  
Correct Expression

The influence of the gas presence in calorimeter on the result of measuring of thermal capacity is considered. The feature of the case is the unavoidable change of the gas mass during measuring procedure. The correct expression for the value of amendment is obtained, and uncertainty is evaluated for the calorimeter КА-С4 that serves as the standard of the unit of heat capacity.

scholarly journals Specific heat capacity measurement of Phyllostachys edulis (Moso bamboo) by differential scanning calorimetry

2016 ◽  
Vol 125 ◽  
pp. 821-831 ◽  
Author(s):  
Puxi Huang ◽  
Anita Zeidler ◽  
Wen-shao Chang ◽  
Martin P. Ansell ◽  
Y.M.J. Chew ◽  
...  
Keyword(s):  
Differential Scanning Calorimetry ◽  
Heat Capacity ◽  
Specific Heat ◽  
Specific Heat Capacity ◽  
Heat Capacity Measurement ◽  
Moso Bamboo ◽  
Phyllostachys Edulis ◽  
Capacity Measurement ◽  
Scanning Calorimetry

Measurements of the Isobaric Specific Heat Capacity and Density for Dimethyl Ether in the Liquid State

2010 ◽  
Vol 55 (8) ◽  
pp. 2658-2661 ◽  
Author(s):  
Katsuyuki Tanaka ◽  
Yukihiro Higashi
Keyword(s):  
Heat Capacity ◽  
Specific Heat ◽  
Dimethyl Ether ◽  
Specific Heat Capacity ◽  
Liquid State ◽  
Isobaric Specific Heat
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