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Recent Developments in Heat Transfer: Towards Climate Neutrality
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Recent Developments in Heat Transfer: Towards Climate Neutrality

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "J1: Heat and Mass Transfer".

Deadline for manuscript submissions: 10 June 2025 | Viewed by 1873

Special Issue Editors

Dr. Bożena Babiarz

E-Mail Website
Guest Editor
Faculty of Civil and Environmental Engineering and Architecture, Rzeszow University of Technology, 35-959 Rzeszow, Poland
Interests: energy efficiency; thermal comfort; heat transfer; HVAC; reliability and risk analysis; energy security
Dr. Alicja Siuta-Olcha

E-Mail Website
Guest Editor
Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland
Interests: energy efficiency; renewable energy sources; heating; HVAC; DHW; heating network
Special Issues, Collections and Topics in MDPI journals
Dr. Dorota Anna Krawczyk

E-Mail Website
Guest Editor
Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska Street 45A, 15-351 Bialystok, Poland
Interests: energy efficiency; sustainable buildings, renewable energy sources; heating; HVAC; DHW; energy consumption
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The pursuit of climate neutrality requires global systemic actions involving the use of solutions aimed at reducing emissions. Changes must be introduced in all sectors affecting climate change, namely power engineering and district heating, construction, transport, industry, as well as agriculture and forestry. Comprehensive actions are needed to increase energy efficiency, use of modern low-emission technologies and materials, use of renewable energy sources and waste heat recovery, closed-circuit economy, etc. These actions are closely related to the conditions and dynamics of the heat transfer process in the solutions used. Analysis of models of the heat transfer process allows for optimization of solutions and reduction in costs. The use of modern heat exchange solutions in various economic sectors leads to improved energy efficiency and increased energy security and prevents environmental degradation. Changes must also be made in thermal and energy management models and society's consumption models as an element of the energy transformation towards climate neutrality and preventing the deepening of energy poverty.

Dr. Bożena Babiarz
Dr. Alicja Siuta-Olcha
Dr. Dorota Anna Krawczyk
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 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • climate neutrality
  • heat transfer
  • heat exchangers
  • heat transfer dynamic
  • energy conversion
  • energy efficiency
  • renewable energy sources
  • energy conversion and storage systems
  • solar energy in construction
  • interactive building barriers
  • phase change materials
  • efficient heating systems
  • effective cooling systems
  • waste heat recovery
  • circular economy
  • energy safety
  • heat and energy management
  • energy poverty

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Published Papers (2 papers)

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Research

21 pages, 7511 KiB  
Article
Comparison of the Heat Transfer Efficiency of Selected Counterflow Air-to-Air Heat Exchangers Under Unbalanced Flow Conditions
by Kazimierz Kaminski, Pawel Znaczko, Ewa Kardas-Cinal, Norbert Chamier-Gliszczynski, Krzysztof Koscielny and Krzysztof Cur
Energies 2025, 18(1), 117; https://doi.org/10.3390/en18010117 - 31 Dec 2024
Viewed by 526
Abstract
This study investigates the thermal performance of various counterflow air-to-air heat exchangers under unbalanced flow conditions, aiming to enhance the efficiency of heat recovery systems. Mechanical ventilation with heat recovery is critical in energy-efficient buildings to reduce heat loss, which can reach up [...] Read more.
This study investigates the thermal performance of various counterflow air-to-air heat exchangers under unbalanced flow conditions, aiming to enhance the efficiency of heat recovery systems. Mechanical ventilation with heat recovery is critical in energy-efficient buildings to reduce heat loss, which can reach up to 60% in air exchange processes. This research focuses on the effects of flow imbalance on the heat transfer efficiency of three specific heat exchangers: two commercially available models (Recair Sensitive RS160 and Core ERV366) and a custom 3D-printed prototype (GV PROTO). Experimental tests measured temperature efficiency under both balanced and unbalanced flow conditions, with results indicating that flow imbalance significantly impacts thermal efficiency. Among the exchangers, the RS160 displayed the highest temperature efficiency, maintaining performance better than the others as flow rates increased. The results of the study show that even small differences in the thermal efficiency of different heat exchangers under balanced airflow conditions transform into significant differences under unbalanced conditions. These findings contribute to a better understanding of how real-world ventilation imbalances affect heat exchanger performance, offering insights to optimize energy efficiency in ventilation systems. Full article
(This article belongs to the Special Issue Recent Developments in Heat Transfer: Towards Climate Neutrality)
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15 pages, 3557 KiB  
Article
Multi-Aspect Shaping of the Building’s Heat Balance
by Aleksander Starakiewicz, Przemysław Miąsik, Joanna Krasoń and Bożena Babiarz
Energies 2024, 17(11), 2702; https://doi.org/10.3390/en17112702 - 2 Jun 2024
Cited by 1 | Viewed by 695
Abstract
In the European Union, buildings account for 42% of the energy consumption and 36% of the direct and indirect energy-related greenhouse gas emissions. Reducing thermal power for heating purposes is crucial to achieve climate neutrality. The main purpose of this article is to [...] Read more.
In the European Union, buildings account for 42% of the energy consumption and 36% of the direct and indirect energy-related greenhouse gas emissions. Reducing thermal power for heating purposes is crucial to achieve climate neutrality. The main purpose of this article is to identify the places in the building where it is possible to significantly improve energy efficiency through the use of appropriate construction and material solutions. This article contains a multi-aspect approach to the heat balance of a building. Solutions that have a direct impact on building energy consumption were analysed, taking into account architectural, technological, and material aspects. Particular attention was paid to energy-efficient design and material solutions for non-transparent and transparent external walls and thermal storage walls (Trombe walls). An analysis of heat transfer through building elements was carried out, along with the optimisation of energy-efficient solutions for non-transparent and transparent barriers. Two methods for determining the equivalent heat transfer coefficient Ue for solar active partitions are presented. The analysis presented in the work using the original method of the balanced heat transfer coefficient Ue is a testing ground for identifying unfavourable features of the building structure, as well as the most energy-efficient solutions that can be used in establishing standards for the construction and modernisation of buildings. The value of the Ue coefficient illustrates the actual heat transfer through the partition. Having Ue values for various structural solutions of building envelopes, the designer can easily select the most effective ones. The use of the presented methodology will allow for the optimisation of technical solutions for building elements to improve its energy efficiency. Full article
(This article belongs to the Special Issue Recent Developments in Heat Transfer: Towards Climate Neutrality)
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