Dear Colleagues,

We invite you to submit your original research or overview papers to this Special Issue on the “Prospects in Power Boilers: Heat Transfer, Advanced Materials and Innovative Technologies" in Energies.

Although renewable energy is becoming a decisive factor in the power energy sector, conventional power units will remain an important complement to the whole system. Unfortunately, their operation will become less stable and shift to fast start-ups, short stable operation, and shutdowns.

The obvious trend is to build power units (coal or oil-fired, and nuclear) with higher efficiency, which results from raised parameters of produced steam. The same addresses old boilers, which will be modernized, recommissioned, and operate until their material durability allows for safe operation. Surprisingly, once thought of as outdated, nuclear power plants nowadays seem a stable source of clean and relatively cheap energy, so we will experience its renaissance and fast expansion as new ideas such as small-scale nuclear reactors are developed.

Raised steam parameters are put in jeopardy by the endurance of their boilers parts, especially these thick-walled ones. Therefore, new materials with appropriate mechanical and physical properties are employed in order to withstand the challenging parameters of operation. In nuclear energy, additional ionizing radiation makes the operation parameters more demanding.

This material evolution leads to a need for a new technology of manufacturing, especially welding, of thick-walled elements of power boilers, as well as others regarding heat transfer enhancement. In view of the process of using the old power boilers in a new mode, repair, modernization, and their recommissioning are of vital importance. The presentation of research results and study focusing on these issues in the power sector will be the subject of this Special Issue of Energies.

Topics include but are not limited to:

• New advanced materials for energy sector.
• Determination of stress‒strain relations resulting from heat flow and pressure of steam.
• Methods of enhancement of heat flow.
• Manufacturing of heat exchangers and other temperature-related elements.
• Welding and other technologies of boilers repairing.

Dr. Krzysztof Wacławiak
Prof. Dr. Jerzy Okrajni
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.

• advanced materials
• boiler efficiency
• durability of components
• innovative technologies
• thermal stress