Volumes I.    Number  1    March 2018    Year 2018
Authors Title Pages
René Berta, Ladislav Lukáč Ash ring formation in lime rotary kilns 1-4
Jarosław Boryca, Tomasz Wyleciał, Dariusz Urbaniak Measurement Errors in Research of Adhesion f Scale to the Steel substrates 5-9
Marián Flimel Application of infrared method for thermal comfort workplace evaluation 10-13
Yevgeniy Karakash Basic areas of the secondary energy resources use in the blast-furnace ironmaking and application of heat pumps for utilization of sensible heat of the furnace top gas 14-18
Lucia Knapčíková Laboratory investigation on thermal properties of recycled polyvinyl butyral 19-22
Andrii Kulikov, Marcel Fedak, Milan Abraham, Jakub Vahovsky Study of the gaseous fuel combustion respect to the O2 concentration and NOx formation 23-26

Pages 1 - 4

Title:

Ash ring formation in lime rotary kilns

Authors:

René Berta, Ladislav Lukáč

Abstract:

This paper describes in different sections all know factors influencing ash ring formation in lime rotary kilns. Ash ring is mostly influence by fuel and lime properties and its impurities and process conditions. The paper describes different types of ash rings that might formed in rotary kilns. Factors were analyzed from feed batch, fuel to construction parts of rotary kilns. Papers describes all know factors how to prevent ash ring formation and how decrease ash ring formation and its influence on operational conditions of lime rotary kilns.

Citation:

Berta, R., Lukáč, L.: Ash ring formation in lime rotary kilns, Advance in Thermal Processes and Energy Transformation Volume I, Nr. 1 (2018), p. 01-04, ISSN 2585-9102

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Pages 5 - 9

Title:

Measurement Errors in Research of Adhesion f Scale to the Steel substrates

Authors:

Jarosław Boryca, Tomasz Wyleciał, Dariusz Urbaniak

Abstract:

The article presents the research methodology and the position for measuring the adhesion of scale. The results of the research are presented and the analysis concerning the calculation of measurement errors during measurements of adhesion of scale to the steel substrate is presented.

Citation:

Boryca, J., et al.: Measurement Errors in Research of Adhesion f Scale to the Steel substrate, Advance in Thermal Processes and Energy Transformation, Volume 1,Nr 1 (2018), p. 05-09, ISSN 2585-9102

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Pages 10 - 13

Title:

Application of infrared method for thermal comfort workplace evaluation

Authors:

Marián Flimel

Abstract:

Thermal comfort as a state of physical and mental well-being in a given environment is an important factor in maintaining the health, satisfaction and performance of a person. There are several methods to evaluate it. The subject of this article is the possibility of using an infrared method for determining cumulative room temperature and the temperature difference between the air temperature and the surface temperature of the room construction. There is an example given for the application.

Citation:

Flimel Marián: Application of infrared method for thermal comfort workplace evaluation, Advance in Thermal Processes and Energy Transformation, Volume I, Nr. 1(2018), p. 10-13, ISSN 2585-102

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Pages 14 - 18

Title:

Basic areas of the secondary energy resources use in the blast-furnace ironmaking and application of heat pumps for utilization of sensible heat of the furnace top gas

Authors:

Yevgeniy Karakash

Abstract:

Reduction of specific energy consumption at cast-iron production is the topical issue over several decades. One of basic areas of the specific energy consumption reduction is the specific coke consumption reduction due to injection of pulverized coal fuel (PCF). Under the present-day conditions of blast-furnace shop operation, the use of low-potential SERs seems to be the most promising measure with regard to reduction of cast-iron production cost. Proposed measures on improvement of blast-furnace gas calorific power due to the reduction of its moisture content allow the blast-furnace air temperature increase and coke consumption reduction. Also proposed is partial transfer of excess heat from the blast-furnace gas to combustion air by means of the system of heat pumps, which allows increase in calorimetric combustion temperature. In this paper, main parameters are calculated of the heat pump system operation under the conditions of blast-furnace shop at the increased top gas temperature. This paper presents heat pump system operating efficiency and determines conversion factor for the specific conditions (COP).

Citation:

Karakash Y.: Basic areas of the secondary energy resources use in the blast-furnace ironmaking and application of heat pumps for utilization of sensible heat of the furnace top gas, Advance in Thermal Processes and Energy Transformation Volume I, Nr. 1(2018), p. 14-18, ISSN 2585-9102

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Pages 19 - 22

Title:

Laboratory investigation on thermal properties of recycled polyvinyl butyral

Authors:

Lucia Knapčíková

Abstract:

Nowadays, the use of secondary raw materials in the manufacturing process is a priority. With this it can be minimized entry investment and can be almost always succeeds as a perfectly substituting primary raw material. The use of polyvinyl butyral is large, and its advantage is a direct application to practice. The aim of this paper is thermal characterization of recycled polyvinyl butyral by differential scanning calorimetry. Using this analysis it was obtained results for Tg a Tm for a tested material. Recycled polyvinyl butyral is characterized by very good elasticity, adhesion to various surfaces, good water resistance, and high compatibility with other polymers and by good processing possibilities and possibility for application in many industries.

Citation:

Knapčíková Lucia: Laboratory investigation on thermal properties of recycled polyvinyl butyral, Advance in Thermal Processes and Energy Transformation, Volume I, Nr 1(2018), p. 19-22, ISSN 2585-9102

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Pages 23 - 26

Title:

Study of the gaseous fuel combustion respect to the O2 concentration and NOx formation

Authors:

Andrii Kulikov, Marcel Fedák, Milan Abraham, Jakub Vahovsky

Abstract:

This paper dedicates thermodynamic and combustion processes respect to the NOx formation and O2.concentration in the combustion air. Model of the boiler and the burners were made in the ANSYS 14.0. Results of the simulations have approved the results of the previous paper that increasing of the O2 concentration leads to the growth of the thermal equipment power but it has negative influence on the NOx production. Increasing of the O2 mass concentration by 1 % is leads to rising of the NOx by approximately 6 %.

Citation:

Kulikov Andrii, et al.: Study of the gaseous fuel combustion respect to the O2 concentration and NOx formation, Advance in Thermal Processes and Energy Transformation, Volume I, Nr. 1(2018), p. 23-26, ISSN 2585-9102

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