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Processes, Volume 13, Issue 5

May 2025 - 357 articles

Cover Story: This study introduces a time-fractional conformable sensitivity analysis framework for optimizing the thermal behavior of hydrogen turbine blades. By incorporating fractional-order derivatives into the governing heat transfer equations, which represent anomalous combustion effects driven by heterogeneous mixing in the combustion chamber affecting blade heating, the model captures complex transient dynamics that are often overlooked in classical formulations. Through numerical simulations and statistical analysis, the influence of the fractional parameter on temperature evolution is assessed across distinct thermal regimes, offering insights for improved thermal management and faster equilibrium attainment. View this paper
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Articles (357)

  • Article
  • Open Access
1 Citations
1,044 Views
13 Pages

Valorization of Grape Seed Cake by Subcritical Water Extraction

  • Marko V. Malićanin,
  • Jaroslava Švarc-Gajić,
  • Steva M. Lević,
  • Vladislav A. Rac,
  • Ana S. Salević-Jelić,
  • Mirjana B. Pešić,
  • Danijel D. Milinčić,
  • Diana Pasarin and
  • Vesna M. Rakić

20 May 2025

Agricultural waste originating from the wine industry presents an environmental and economic issue. Grape seeds, a major constituent of grape pomace, are only partially valorized through oil extraction. The cake remaining after oil production is rich...

  • Article
  • Open Access
1 Citations
1,123 Views
21 Pages

20 May 2025

This study aimed to investigate the impact of ultrasonic pretreatment vacuum drying (UAVD) and temperature on drying kinetics and qualitative attributes of blood oranges in comparison to several drying methods: hot air drying (HAD), vacuum drying (VD...

  • Article
  • Open Access
676 Views
15 Pages

20 May 2025

An interpretable machine learning framework was constructed to predict the bandgap of silicon oxide materials used for electric furnace refractories. Among seven machine learning models compared, the AdaBoost ensemble model performed the best with an...

  • Article
  • Open Access
843 Views
22 Pages

20 May 2025

In a waste heat recovery rotary drum with flights (RDF), particle lifting enhances gas–solid contact but also increases the complexity of particle motion in both radial and axial directions. In this study, a long rotary drum model applicable to...

  • Article
  • Open Access
544 Views
18 Pages

A New Method for Calculating the Setting Stress of Downhole Packer’s Inner Sleeve

  • Zixuan Tian,
  • Sizhu Zhou,
  • Wanquan Deng,
  • Ning Li,
  • Xiang Li,
  • Yun Zeng and
  • Shujie Liu

20 May 2025

There is no analytical solution to the stress, strain and displacement changes in the inner sleeve of the downhole packer during service. In this paper, the inner sleeve structure is simplified based on the shell theory model, and the geometric equat...

  • Article
  • Open Access
3 Citations
2,853 Views
19 Pages

Spent Coffee Ground-Based Materials Evaluated by Methylene Blue Removal

  • Andrea Mariela Araya-Sibaja,
  • Tamara Quesada-Soto,
  • José Roberto Vega-Baudrit,
  • Mirtha Navarro-Hoyos,
  • Johnny Valverde-Cerdas and
  • Luis Guillermo Romero-Esquivel

20 May 2025

Spent coffee grounds (SCG) are produced in large quantities during coffee brewing, contributing to environmental concerns. Additionally, cationic dyes from textile, paper, and leather wastewater pose a major pollution issue. This study explores SCG a...

  • Review
  • Open Access
9 Citations
6,574 Views
34 Pages

Bio-Based Polyurethane Materials: Technical, Environmental, and Economic Insights

  • Piumi Jayalath,
  • Kalyani Ananthakrishnan,
  • Soyeon Jeong,
  • Reshma Panackal Shibu,
  • Mairui Zhang,
  • Deepak Kumar,
  • Chang Geun Yoo,
  • Julia L. Shamshina and
  • Obste Therasme

20 May 2025

Polyurethane (PU) is widely used due to its attractive properties, but the shift to a low-carbon economy necessitates alternative, renewable feedstocks for its production. This review examines the synthesis, properties, and sustainability of bio-base...

  • Article
  • Open Access
1,580 Views
14 Pages

Lignin Extracted from Green Coconut Waste Impregnated with Sodium Octanoate for Removal of Cu2+ in Aqueous Solution

  • Jéssyca E. S. Pereira,
  • Eduardo L. Barros Neto,
  • Lindemberg J. N. Duarte,
  • Ruan L. S. Ferreira,
  • Ricardo P. F. Melo and
  • Paula F. P. Nascimento

20 May 2025

Investigating viable processes for the use of lignocellulosic biomass in clean fuels and high-value-added chemical products is essential for sustainable development. Large amounts of lignin are available every year as by-products of the paper and bio...

  • Article
  • Open Access
898 Views
24 Pages

Thermodynamic and Exergetic Evaluation of a Newly Designed CSP Driven Cooling-Desalination Cogeneration System

  • Hassan F. Elattar,
  • Abdul Khaliq,
  • Bassam S. Aljohani,
  • Abdullah M. A. Alsharif and
  • Hassanein A. Refaey

20 May 2025

This investigation attempts to develop a tower solar collector-based system designed for the cogeneration of cooling and desalination. The traditional organic Rankine cycle (ORC) integrated with the ejector refrigeration cycle generates limited power...

  • Article
  • Open Access
1 Citations
845 Views
22 Pages

20 May 2025

The accurate estimation of the entry length required for a flow in a tube to transition from a uniform velocity profile to a fully developed state is crucial in many industrial processes. Although viscoelastic fluids are widely utilized in industrial...

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Processes - ISSN 2227-9717