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Archives of Thermodynamics

Archives of Thermodynamics

Description

The aim of the quarterly journal Archives of Thermodynamics is to disseminate knowledge between scientists and engineers worldwide and to provide a forum for original research conducted in the field of thermodynamics, heat transfer, fluid flow, combustion and energy conversion in various aspects of thermal sciences, mechanical and power engineering. Besides original research papers, review articles are also welcome.

The journal scope of interest encompasses in particular, but is not limited to:

  • Classical and extended non-equilibrium thermodynamics,
  • Thermodynamic analysis including exergy,
  • Thermodynamics of heating and cooling,
  • Thermodynamics of nuclear power generation,
  • Thermodynamics in defense engineering,
  • Advances in thermodynamics,
  • Experimental, theoretical and numerical heat transfer,
  • Heat and momentum transfer in multiphase flows and nanofluids,
  • Renewable energy sources including solar energy,
  • Hydrogen Energy,
  • Thermal Energy Conversion,
  • Energy Transition,
  • Advanced Energy Carriers,
  • Energy storage and efficiency,
  • Energy in buildings,
  • Secondary fuels and fuel conversion,
  • Combustion and emissions,
  • Thermal incineration of wastes and waste heat recovery,
  • Thermal and energy system analysis,
  • Combined and integrated energy systems,
  • Distributed energy generation,
  • Turbomachinery.


Appears since 1980, four issues per year.

Publication funding of this journal is provided by resources of the Polish Academy of Sciences and The Szewalski Institute of the Fluid-Flow Machinery of the Polish Academy of Sciences.

Scoring assigned by the Polish Ministry of Science and Higher Education: 70 points

IMPACT FACTOR 2023: 0.8

CiteScore metrics from Scopus, CiteScore 2023: 1.8

SCImago Journal Rank (SJR) 2023: 0.25

Source Normalized Impact per Paper (SNIP) 2023: 0.395

H-index: 17

Overall Rank/Ranking: 17629



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ISSN
ISSN 1231-0956, eISSN 2083-6023
Publishers
The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences
International Advisory Board

J. Bataille, Ecole Central de Lyon, Ecully, France

A. Bejan, Duke University, Durham, USA

A. C. Benim, Duesseldorf University of Applied Sciences, Germany

W. Blasiak, Royal Institute of Technology, Stockholm, Sweden

G. P. Celata, ENEA, Rome, Italy

L.M. Cheng, Zhejiang University, Hangzhou, China

M. Colaco, Federal University of Rio de Janeiro, Brazil

J. M. Delhaye, CEA, Grenoble, France

M. Giot, Université Catholique de Louvain, Belgium

K. Hooman, University of Queensland, Australia

D. Jackson, University of Manchester, UK

D.F. Li, Kunming University of Science and Technology, Kunming, China

K. Kuwagi, Okayama University of Science, Japan

J. P. Meyer, University of Pretoria, South Africa

S. Michaelides, Texas Christian University, Fort Worth Texas, USA

M. Moran, Ohio State University, Columbus, USA

W. Muschik, Technische Universität Berlin, Germany

I. Müller, Technische Universität Berlin, Germany

H. Nakayama, Japanese Atomic Energy Agency, Japan

S. Nizetic, University of Split, Croatia

H. Orlande, Federal University of Rio de Janeiro, Brazil

M. Podowski, Rensselaer Polytechnic Institute, Troy, USA

A. Rusanov, Institute for Mechanical Engineering Problems NAS, Kharkiv, Ukraine

M. R. von Spakovsky, Virginia Polytechnic Institute and State University, Blacksburg, USA

A. Vallati, Sapienza University of Rome, Italy

H.R. Yang, Tsinghua University, Beijing, China




Supervisory Editors

• T. Bohdal, Koszalin University of Technology, Poland

• M. Lackowski, Institute of Fluid Flow Machinery, Gdańsk, Poland

Honorary Editor

• J. Mikielewicz, Institute of Fluid Flow Machinery, Gdańsk, Poland

Editor-in-Chief

• P. Ocłoń, Cracow University of Technology, Cracow, Poland

Section Editors

• P. Lampart, Institute of Fluid Flow Machinery, Gdańsk, Poland

• S. Polesek-Karczewska, Institute of Fluid Flow Machinery, Gdańsk, Poland

• I. Szczygieł, Silesian University of Technology, Gliwice, Poland

• A. Szlęk, Silesian University of Technology, Gliwice, Poland

Technical Editors

• J. Frączak, Institute of Fluid Flow Machinery, Gdańsk, Poland

• S. Łopata, Institute of Fluid Flow Machinery, Gdańsk, Poland

Members of Programme Committee

• D. Kardaś (chairman): Inst. Fluid Flow Mach., Gdańsk, Poland

• J. Badur, Inst. Fluid Flow Mach., Gdańsk, Poland

• T. Chmielniak, Silesian Univ. Tech., Gliwice, Poland

• P. Furmański, Warsaw Univ. Tech., Poland

• R. Kobyłecki, Częstochowa Univ. Tech., Poland

• S. Pietrowicz, Wrocław Univ. Sci. Tech., Poland

• J. Wajs, Gdańsk Univ. Tech., Poland

Wydawnictwo IMP

The Szewalski Institute of Fluid Flow Machinery PAS

Fiszera 14, 80-952 Gdańsk, Poland

telephone: +48 58 5225 141, fax: +48 58 3416 144

e-mail: jfrk@imp.gda.pl; redakcja@imp.gda.pl

http://www.imp.gda.pl/archives-of-thermodynamics/

https://www.journals.pan.pl/ather

 

 

For articles published in Archives of Thermodynamics, the authors transfer copyright to publisher.


The Archives of Thermodynamics is published in formula: Open Access Gratis.
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Content

Archives of Thermodynamics | 2024 | vol. 45 | No 3

1 Title pages
Archives of Thermodynamics | 2024 | vol. 45 | No 3
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2 Contents
Archives of Thermodynamics | 2024 | vol. 45 | No 3
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3 Issues on numerical modelling of transport processes in granular reactive media – an approach with thermal relaxation
Sylwia Polesek-Karczewska , Dariusz Kardaś
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 5-12 | DOI: 10.24425/ather.2024.150450
Keywords: Reactive media Granular material Non-Fourier model Relaxation time
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Abstract

The steadily growing interest in applying granular media in various novel and advanced technologies, particularly in the energy sector, entails the need to gain in-depth knowledge of their thermal and flow behaviour and develop simulation predictive tools for systems’ design and optimisation. The focus of the present study is on the numerical modelling of the thermal decomposition of solid fuel grains in a packed bed while considering a non-classical description of heat transfer in such a medium. The work aims to assess the influence of the relaxation time and thermo-physical properties of the medium on the nature of the solution and highlight the factors that are the source of local non-equilibrium affecting thermal wave speed propagation. The analysis of the predicted temperature distribution was carried out based on the developed transient one-dimensional thermal and flow model, taking into account the moisture evaporation and the devolatilization of fuel particles. Obtained simulation results showed a significant increase in the temperature gradients with increased relaxation times for the case of wet granular bed. They also demonstrated the variable dynamics of thermal wave propagation due to the change in the packed bed structure with the process progress. For a relaxation time of 100 s, a several-fold increase in the temperature signal propagation speed during the fuel bed thermal decomposition was predicted.
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Authors and Affiliations

Sylwia Polesek-Karczewska
1
Dariusz Kardaś
1
  1. Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, Gdańsk PL 80-231, Poland
4 Understanding of RANS-modelled impinging jet heat transfer trough turbulence kinetic energy, momentum and energy budgets
Sebastian Gurgul , Elzbieta Fornalik-Wajs
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 13-30 | DOI: 10.24425/ather.2024.150451
Keywords: Round impinging jet Turbulence kinetic energy budget Momentum budget Energy budget Nusselt number
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Abstract

Impinging jets are one of the most effective techniques of heat transfer intensification, therefore they are continuously applied in various engineering areas. On the other hand, a numerical modelling of complex phenomena contributing to an overall heat transfer effect (and the Nusselt number value) is still not sufficient and suffers from lack of generalization. The extensive studies have been conducted to unify approach to the impinging jet modelling and construct the model (in Ansys Fluent software), which allows mirroring of the results. Presented work discusses differences in representation of impinging jet between various turbulence models based on the turbulence kinetic energy, momentum and energy budgets. It allows deep understanding of influence of geometrical and flow parameters on fluid mechanics phenomena interaction and final effect. The most significant results are connected with linking of Nusselt number distribution with analyzed budgets’ terms. Each term contributes to the distribution and cannot be omitted. Drawn conclusions explain the origin of reported in litera-ture differences and includes suggestions, how to evaluate the Nusselt number distribution results coming from various turbulence models. At this stage of research to have a complete image of relation between the particular quantities budgets and heat transfer effect it is suggested to consider also the turbulence kinetic energy dissipation budget, which will fil opened by this research gap.
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Authors and Affiliations

Sebastian Gurgul
1
Elzbieta Fornalik-Wajs
1
  1. AGH University of Krakow, Al. Mickiewicza 30, Krakow 30-059, Poland
5 Mathematical model of a three-stage vacuum ejector system
Robert Matysko
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 31-38 | DOI: 10.24425/ather.2024.150876
Keywords: Ejector Vacuum Steam power plant Inert gases
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Abstract

This paper presents a mathematical model of a vapour vacuum system, which is a crucial component of steam power plants of critical importance for energy efficiency. This system consists of three stages, with each stage containing a steam ejector and a gas phase separator in the form of an interstage heat exchanger. The primary purpose of this system is to remove inert gases and maintain the appropriate level of vacuum in the power plant condenser. The presented mathematical model can be used to analyse the operation of the vacuum system in a steady state. Preliminary pressure calculations in various components of the vacuum system show the influence of additional measurement orifice resistance on the vacuum drop in the condenser, which can reduce the efficiency of the entire energy system. It is worth noting that the presented model can be used as a tool for analysing elements of the vacuum system in energy systems.
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Authors and Affiliations

Robert Matysko
1
  1. Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, Gdańsk 80-231, Poland
6 CFD analysis of the effect of bed geometry on H2O adsorption and desorption efficiency
Szymon Janusz , Marcin Borcuch , Piotr Cyklis
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 39-47 | DOI: 10.24425/ather.2024.151214
Keywords: Heat transfer Adsorption Computational fluid dynamics Mass transfer Refrigeration devices
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Abstract

The article presents a comprehensive computational fluid dynamics analysis of the adsorption and desorption cycles in adsorption refrigeration systems, focusing on the impact of the adsorbent bed geometry. The entire adsorption/desorption cycle has been modeled, allowing for the observation of events during the transitional period between processes and how these influence their progression. This approach is a novelty in the field. The developed numerical model was verified against experimental data available in the literature, demonstrating excellent convergence with the experiment, with a de-viation not exceeding 2%. The study illustrates how the geometrical parameters such as height and length of the bed affect the efficiency of the adsorption and desorption processes, emphasizing the importance of bed geometry in the adsorption of heat and mass exchangers in energy and adsorbate transfer. The research findings provide valuable insights for designing more efficient cooling devices using adsorption technology, highlighting the role of bed geometry in optimizing these systems. Modeling the entire adsorption/desorption cycle is a novelty and allows for the observation of what happens during the transitional period between processes and how this influences their progression.
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Authors and Affiliations

Szymon Janusz
1 2
Marcin Borcuch
2
Piotr Cyklis
1
  1. Cracow University of Technology, Jana Pawla II 37, 31-864 Kraków, Poland
  2. M.A.S. Sp z o.o., Research and Development Department, Składowa 34, 27-200 Starachowice, Poland
7 Modelling of heat transfer during flow condensation of natural refrigerants under conditions of increased saturation pressure
Stanisław Głuch , Dariusz Mikielewicz
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 49-56 | DOI: 10.24425/ather.2024.151215
Keywords: Condensation Heat transfer coefficient Reduced pressure Saturation pressure Saturation temperature
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Abstract

The paper presents a modified in-house model for calculating heat transfer coefficients during flow condensation, which can be applied to a variety of working fluids, but natural refrigerants in particular, at full range thermodynamic parameters with a particular focus on increased saturation pressure. The modified model is based on a strong physical basis, namely the hypothesis of analogy between the heat transfer coefficient and pressure drop in two-phase flow. The model verification is based on a consolidated database that consists of 1286 data points for 7 natural refrigerants and covers the reduced pressure range (the ratio of critical pressure and saturation pressure) from 0.1 to 0.8 for different mass velocities and diameters. The new version of the in-house model, developed earlier by Mikielewicz, was compared with 4 other mathe-matical models widely recommended for engineering calculations and obtained the best consistency results. The value of the mean absolute percentage error was 28.13% for the modified model, the best result among the scrutinised methods.
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Authors and Affiliations

Stanisław Głuch
1
Dariusz Mikielewicz
1
  1. Gdańsk University of Technology, Faculty of Mechanical Engineering and Ship Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
8 Research of the physical properties of bio-based building materials with phase change material
Mateusz Wendołowicz , Natalia Mikos-Nuszkiewicz , Łukasz Cieślikiewicz , Maris Sinka , Diana Bajare , Piotr Łapka
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 57-66 | DOI: 10.24425/ather.2024.151216
Keywords: Bio-based building materials Bio-based composites Magnesium binder Hemp shives Phase change mate-rial (PCM) Helium pycnometer Porosity measurement
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Abstract

This article presents the results of experimental measurements of the physical properties of new environmentally friendly bio-based composite building materials containing hemp shives bonded with a magnesium binder. Some of the tested materials contained an admixture of phase change material (PCM) of variable proportions in the binder to increase the heat capacity of building elements (walls), which can positively affect room temperature regulation. Densities and porosities are key parameters describing building materials, directly affecting mechanical, acoustic, and, most importantly, hygro-thermal properties, including thermal conductivity, water vapor permeability, water absorptivity, and sorption curves. The experiment was carried out for ten different samples of bio-based building composites, differing in the bulk density ob-tained during the manufacturing process and in the PCM proportion. As part of the experiment, true density tests were conducted on a helium pycnometer. Then, the geometric densities of the tested materials (which may differ from the bulk density obtained during production) were measured using the Archimedes method, making it possible to obtain the total, closed, and open porosity values. Tests were also carried out for selected traditional building materials, such as red brick and autoclaved aerated concrete, to compare the results obtained.
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Authors and Affiliations

Mateusz Wendołowicz
1
Natalia Mikos-Nuszkiewicz
1
Łukasz Cieślikiewicz
1
Maris Sinka
2
Diana Bajare
2
Piotr Łapka
1
ORCID: ORCID
  1. Warsaw University of Technology, Faculty of Power and Aeronautical Engineering, Institute of Heat Engineering, Nowowiejska 21/25, 00-665 Warsaw, Poland
  2. Riga Technical University, Faculty of Civil Engineering, Institute of Materials and Structures, Kalku 1, LV-1658 Riga, Latvia
9 Phase change material selection for energy storage units using a simple and effective decision-making method
Ravipudi Venkata Rao
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 67-79 | DOI: 10.24425/ather.2024.151217
Keywords: Energy storage Phase-change material selection Selection attributes Decision-making method
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Abstract

This study provides a simple and effective decision-making method to choose the best phase-change material for different energy storage applications. Three case studies are provided to demonstrate the proposed decision-making method. The first case study addresses the problem of best phase-change material selection for a domestic water heating latent heat storage system by considering 15 different phase-change materials and 8 selection attributes; the second case study addresses the problem of selecting the best phase-change material for a triple tube heat exchanger unit by considering 12 different phase-change materials and 5 selection attributes; the third case study addresses the problem of best phase-change material selection for latent heat thermal energy storage within the walls of Trombe to enhance performance considering 11 phase-change materials and 4 selection attributes. The results of the proposed decision-making method are compared with those of other well-known multi-attribute decision-making methods. The proposed method is shown to be simple to implement, providing a logical way for allocating weights to the selection attributes and adaptable to phase-change material selection problems in different energy storage contexts.
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Authors and Affiliations

Ravipudi Venkata Rao
1
  1. Sardar Vallabhbhai National Institute of Technology, Ichchanath, Surat-395007, India
10 Heat flow analysis and description of the cooperation of the heat exchange station with heat exchange substations located in apartments
Dawid Taler , Tomasz Sobota , Jan Taler , Agata Kania , Robert Wiśniewski
Archives of Thermodynamics | 2024 | vol. 45 | No 3 | 81-88 | DOI: 10.24425/ather.2024.151218
Keywords: Monitoring of the heat station Plate heat exchanger Heat exchanger efficiency Building central heating Res-idential micro heating station
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Abstract

This paper presents an analysis of the heat flow in a plate heat exchanger located at a building heat exchange station. The plate heat exchanger is the main source of heat for the building system based on microsubstations in the building apartments. The co-operation of the heat exchange station with the substations in the apartments is also described. Such microstations are intended for both domestic hot water preparation and apartment heating. The method of calculating the product of the heat transfer coefficient k and the heat exchange surface area A is presented. In order to verify the correctness of the measured values of the temperatures of hot and cold water at the heat exchange station inlet and outlet, they were compared to the values calculated using the -NTU method. Good agreement was found between the results of the calculations and the meas-urements. Recommendations were made for the temperature of return water to the heating station. The cost of operating the district heating network could be reduced by increasing the surface area of central heating radiators in apartments, so that the temperature of return water to the heating station could be lowered.
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Authors and Affiliations

Dawid Taler
1
Tomasz Sobota
1
Jan Taler
2
Agata Kania
3
Robert Wiśniewski
3
  1. Department of Thermal Processes, Air Protection and Waste Utilization, Cracow University of Technology, ul. Warszawska 24, Cracow 31-155, Poland
  2. Department of Energy, Cracow University of Technology, al. Jana Pawla I 37, Cracow 31-864, Poland
  3. MPEC S.A. in Cracow, Al. Pokoju 81, 31-564 Cracow, Poland
11 Effects of Joule heating due to magnetohydrodynamic slip flow in an inclined channel