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The 15th International Conference on Thermal Engineering: Theory and Applications
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The 15th International Conference on Thermal Engineering: Theory and Applications

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "J: Thermal Management".

Deadline for manuscript submissions: closed (14 September 2025) | Viewed by 2753

Special Issue Editors

Prof. Dr. Ziad Saghir

E-Mail Website
Guest Editor
Department of Mechanical and Industrial Engineering, Toronto Metropolitan University, Toronto, ON M5B 2K3, Canada
Interests: computational fluid dynamics; material science; flow in porous media; biomedical engineering; thermofluid; phase change materials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Mohammad Mansur Rahman

E-Mail Website
Guest Editor
Department of Mathematics, College of Science, Sultan Qaboos University, Al-Khod PC 123, Muscat, Oman
Interests: computational fluid dynamics; material science; flow in porous media; biomedical engineering; thermofluid; phase change materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The ICTEA conference series was established in order to provide an opportunity for the professional development of scientists and engineers in the Middle East, including the Gulf region and North Africa. The need for such development persists, despite the strong commitment of regional governments to improving undergraduate education and to building research capabilities in institutions of higher learning. Until recently, attracting highly motivated academic staff to advance research agendas and to make significant contributions to GDP growth were not a top priority. However, owing to the foresight of regional leaders, higher education in this part of the world is starting to change. Nonetheless, the fact remains that highly skilled scientists and engineers in the region who are dedicated to research must often seek work abroad in academic and research institutions to develop themselves professionally. This year’s conference will be held in Tashkent, Uzbekistan, in collaboration with Tashkent Davlat Transport University in Uzbekistan and Toronto Metropolitan University in Canada.

This Special Issue will mainly collect papers from the ICTEA conference.

Prof. Dr. Ziad Saghir
Prof. Dr. Mohammad Mansur Rahman
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • energy
  • thermal management
  • environment
  • heat and mass transfer
  • fluid flow

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Published Papers (3 papers)

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Research

20 pages, 2357 KB  
Article
Numerical Study of a Solar Dryer Prototype with Microencapsulated Phase Change Materials for Rice Drying
by Hector Riande, Itamar Harris, Edwin Collado, Antony Garcia and Yessica Saez
Energies 2025, 18(20), 5427; https://doi.org/10.3390/en18205427 - 15 Oct 2025
Viewed by 457
Abstract
This study presents a numerical investigation of a solar dryer prototype integrated with microencapsulated phase change material (MPCM) for rice drying under tropical climatic conditions. The thermal and drying behavior of the system was evaluated under the following four configurations: a baseline solar [...] Read more.
This study presents a numerical investigation of a solar dryer prototype integrated with microencapsulated phase change material (MPCM) for rice drying under tropical climatic conditions. The thermal and drying behavior of the system was evaluated under the following four configurations: a baseline solar dryer, a dryer with MPCM only, a dryer with an auxiliary heater, and a combined system using both MPCM and auxiliary heating. The prototype was also tested with rice layers of 25 mm and 45 mm to assess the influence of layer thickness on drying performance. The results showed that the use of MPCM reduced temperature fluctuations from about ΔT≈70 °C in the baseline case to stabilized values near 33–34 °C (MPCM only) and 35–38 °C (MPCM + heater), contributing to a more stable thermal environment. In thinner layers (25 mm), MPCM helped prevent localized overheating, while in thicker layers (45 mm), it promoted more uniform moisture reduction. However, the overall improvement in drying performance was marginal, as efficiency remained strongly dependent on heater support. The study points out the need for improved integration of PCM within dryer design. Enhanced thermal contact and strategic preheating of MPCM could improve heat discharge during non-solar periods. Future work will focus on experimental validation, design optimization, and the development of preheating strategies to maximize the benefits of PCM-assisted solar drying systems. Full article
(This article belongs to the Special Issue The 15th International Conference on Thermal Engineering: Theory and Applications)
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17 pages, 4102 KB  
Article
PV Cell Temperature Prediction Under Various Atmospheric Conditions
by Iuliana Şoriga, Camelia Stanciu, Patricia Şişu and Iuliana Goga
Energies 2025, 18(19), 5239; https://doi.org/10.3390/en18195239 - 2 Oct 2025
Viewed by 551
Abstract
The present study analyses various mathematical models from the technical literature for calculating photovoltaic cell temperature, emphasizing wind velocity as a key parameter. Since cell temperature significantly affects photovoltaic module efficiency, researchers are actively pursuing simple and cost-effective cooling methods for these systems. [...] Read more.
The present study analyses various mathematical models from the technical literature for calculating photovoltaic cell temperature, emphasizing wind velocity as a key parameter. Since cell temperature significantly affects photovoltaic module efficiency, researchers are actively pursuing simple and cost-effective cooling methods for these systems. First, the study surveys existing mathematical models for computing cell temperature and evaluates how model parameters affect calculations. Second, it demonstrates computational outcomes using selected formulae—chosen based on criteria outlined in the paper—to predict PV cell temperatures under varying wind conditions using meteorological data from Bucharest, Romania. The analysis employs a transient mathematical model based on a single ordinary differential equation, validated against experimental data from previous studies. The results reveal circumstances where alternative mathematical approaches produce similar outcomes, alongside situations where substantial discrepancies emerge. The investigation concludes by contrasting computational forecasts against empirical observations, providing valuable guidance for future research in this domain. Full article
(This article belongs to the Special Issue The 15th International Conference on Thermal Engineering: Theory and Applications)
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14 pages, 1792 KB  
Article
Study of CH4–H2 Gas Combustion in Air Enriched with Oxygen Through Ozone Injection
by Lucian Mihaescu, Elena Pop, Ionel Pisa, Dorel Stoica and Rodica Manuela Grigoriu
Energies 2025, 18(19), 5236; https://doi.org/10.3390/en18195236 - 2 Oct 2025
Viewed by 574
Abstract
This study investigates the combustion behavior of H2–CH4 mixtures with oxygen-enriched air, achieved through injecting ozone (O3) into the air intake of the burner fan. The motivation for this approach lies in the high reactivity of hydrogen compared [...] Read more.
This study investigates the combustion behavior of H2–CH4 mixtures with oxygen-enriched air, achieved through injecting ozone (O3) into the air intake of the burner fan. The motivation for this approach lies in the high reactivity of hydrogen compared to methane, with the aim of promoting a more favorable oxidizing environment for overall combustion. The research combines theoretical analysis with experimental validation using a diffusion-type burner operating at a fuel flow rate of 1.2 Nm3/h. For this flow rate, the ozone injection led to an equivalent O2 concentration of approximately 21.7%. At this enrichment level, flame temperature was calculated to increase by 70–90 °C. The burner was specifically designed for the diffusion combustion of H2–CH4 mixtures and features three fuel injection nozzles, each surrounded by five air inlets. Experiments employed premixed H2-CH4 gas cylinders (Linde) with hydrogen concentrations of 20% and 30%, respectively. The results confirmed slight combustion intensification due to elevated oxygen concentration, with no issues related to flame stability or pulsations observed. Core flame temperature and flue gas emissions, including CO2, were measured. The results support the further development of this combustion technology by increasing the allowable oxygen concentration limit. Full article
(This article belongs to the Special Issue The 15th International Conference on Thermal Engineering: Theory and Applications)
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