Title:

Calculation of Measurement Errors in Research of Adhesion of Scale to the Steel Substrates for Cold Specimens

Authors:

Jarosław Boryca, Tomasz Wyleciał

Abstract:

In experimental research, determining the potential measurement errors is an extremely important element. Also, the scale adhesion tests require such calculations. The paper presents the results of the scale adhesion tests for specific thermochemical parameters using the cold samples method. The calculation scheme and results of calculating measurement errors were also demonstrated.

Citation:

Boryca Jarosław, Wyleciał Tomasz : Calculation of Measurement Errors in Research of Adhesion of Scale to the Steel Substrates for Cold Specimens, Advance in Thermal Processes and Energy Transformation Volume 2, No.4 (2019), p. 61-64, ISSN 2585-9102. https://doi.org/10.54570/atpet2019/02/04/0061

Full Text

Title:

A Comparison of the Calculation Methods for Inflow Curves Creation to Software Prosper

Authors:

Branislav Halek, Dávid Heinz

Abstract:

The oil reservoir behavior and evaluation of its deliverability belongs to the fundamental role of production engineers in the petroleum industry. The ability of the well to produce is characterized by the relationship between the total liquid flow rate and bottom-hole flowing pressure. This relationship is so-called IPR – inflow performance relationship. Nowadays, there are many different IPR correlations in petroleum industry but the most common use model is Vogel‘s method. With the development of computer technology were created computer softwares for this purpose. In this article, Prosper 14.0 was used to compare the results obtained by manual calculation using the Vogel‘s method. At the same time, a manual calculation based on Darcy‘s reservoir model was created and compared with the software in which it was used as the main reservoir model.

Citation:

Halek Branislav, Heinz Dávid: A Comparison of the Calculation Methods for Inflow Curves Creation to Software Prosper, Advance in Thermal Processes and Energy Transformation, Volume 2, No. 4, (2019), p. 65-70, ISSN 2585-9102. https://doi.org/10.54570/atpet2019/02/04/0065

Full Text

Title:

Mathematical Model of Electrical Cabinet Cooling

Authors:

Mária Polačiková, Andrej Kapjor, Milan Malcho, Patrik Nemec

Abstract:

The article focuses on cooling systems in electrical engineering, which are an interesting area of exploration and discovery. Specifically, it focuses on the mathematical calculation of cooling in electrical engineering. Cooling was provided by a heat pipe, which represents an interesting way of heat removal. The first part describes the origin and effect of elevated temperature in electrical equipment. The second part deals with the proposed procedure of calculating the mathematical model in cooling This calculation relates to cooling by heat pipe at different volumes of working substance and at different temperature loads. The aim was to design a mathematical model by means of which the amount of heat removed from the heat pipe is calculated. The results of this model give theoretical information on the amount of heat removed.

Citation:

Polačiková Mária, Kapjor Andrej, Malcho Milan, Nemec Patrik: Mathematical Model of Electrical Cabinet Cooling, Advance in Thermal Processes and Energy Transformation Volume2, No. 4, (2019), p. 71-75, ISSN 2585-9102. https://doi.org/10.54570/atpet2019/02/04/0071

Full Text

Title:

Analysis of the work of experimental equipment on the principle of the vortex tube

Authors:

Ján Kizek, Ľudovít Hudák, Gustáv Jablonský, Róbert Dzurňák, Yevgen Karakash, Miroslav Káňa

Abstract:

The authors focused on 3 different constructions of experimental equipment based on the principle of countercurrent Ranque-Hilsch Vortex Tube (RHVT). With the help of experimental devices, the separating effect of air can be demonstrated by means of a vortex effect. The constructions of the experimental facilities are based on the relationships published by the authors Takaham and Sonim. Based on the air inlet pressure and the hot outlet area, the outlet temperature of the hot and cold air fractions will be monitored. The temperature difference is evaluated and the suitability of the proposed parameters of the experimental equipment is assessed.

Citation:

Kizek J. et al.: Analysis of the work of experimental equipment on the principle of the vortex tube, Advance in Thermal Processes and Energy Transformation, Volume 2, Nr.4, (2019), p. 76-80, ISSN 2585-9102. https://doi.org/10.54570/atpet2019/02/04/0076

Full Text