Heat Transfer Performance and Influencing Factors of Waste Management
A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "J1: Heat and Mass Transfer".
Deadline for manuscript submissions: 5 January 2026 | Viewed by 952
Special Issue Editors
Interests: audit and saving evaluation method of energy; strengthening mechanism and technology of heat and mass transfer; recovery and cascade utilization of industrial waste heat
Interests: research on the strengthening mechanism and technology of heat and mass; thermal management of high-power equipment
Special Issue Information
Dear Colleagues,
In modern waste management, pyrolysis technology has emerged as a pivotal approach for recycling waste tires, addressing both environmental sustainability and resource recovery challenges. This study focuses on improving heat transfer efficiency and pyrolysis oil yield in a horizontal rotary furnace by systematically investigating the effects of tire particle size, rotary furnace rotation speed, enhanced heat transfer materials, and spiral fin installation on thermal performance and product distribution.
Through experimental analysis, powdered waste tire particles (fine particle size) demonstrated superior heating uniformity during pyrolysis, leading to a notable increase in the overall heat transfer coefficient and the proportion of liquid products. Mechanical agitation via rotational speed was critical: when the speed exceeded 2 rpm, sufficient contact between materials and the furnace wall enhanced heat transfer, with optimal performance observed at 3 rpm. Introducing heat transfer enhancement materials—specifically carborundum and white alundum—significantly improved thermal interaction between the furnace and materials. The highest overall heat transfer coefficient of 16.89 W/(m2·K) and a pyrolysis oil yield of 46.1% were achieved under the combined conditions of 3 rpm, carborundum addition, and powdered particle feedstock.
Structural modifications via spiral fin installation further boosted the comprehensive heat transfer coefficient from 12.78 W/(m2·K) to 16.32 W/(m2·K), highlighting the synergistic effects of mechanical design and material selection. These findings provide critical insights for optimizing rotary furnace operations in waste tire pyrolysis, balancing energy efficiency and product quality for industrial-scale applications.
Prof. Dr. Hongting Ma
Dr. Shuo Ma
Guest Editors
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Keywords
- waste tires
- pyrolysis oil
- horizontal rotary furnace
- heat transfer coefficient
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