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Advanced Solutions for the Storage and Efficient Utilization of Waste Heat

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

Deadline for manuscript submissions: 10 June 2025 | Viewed by 1127

Special Issue Editor


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Guest Editor
School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou, China
Interests: solar photovoltaic utilization and phase change energy storage; multiphase transport and interfacial reaction mechanism; clean and efficient utilization of industrial waste heat

Special Issue Information

Dear Colleagues,

The severe energy crisis and ecological pollution worldwide have had adverse effects on the sustainable development of countries globally, posing a serious threat to the long-term prosperity of humanity. These challenges are mainly attributed to the enormous energy consumption and pollutant emissions in industrial production and operation. Fortunately, in the current severe energy and environmental situation, many countries around the world have begun to promote low-carbon and energy-saving energy transformations, especially the emergence of advanced waste heat storage and recycling methods, which have brought unprecedented opportunities and challenges for industrial energy conservation and low-carbon development. In various industries, storing and utilizing waste heat is considered an effective method to overcome system intermittency, improve system economic efficiency, save energy, and reduce emissions. However, due to differences in waste energy levels and industries, the potential for waste heat recovery and storage methods also varies. The thermal performance, economic benefits, and environmental benefits of waste heat recovery systems also need to be discussed in depth.

This Special Issue aims to introduce and disseminate the latest developments related to the theory, design, modeling, and application of advanced waste heat storage and recovery technologies.

Topics of interest include, but are not limited to, the following:

  1. Advanced waste heat storage technology and its application;
  2. Advanced waste heat utilization methods and applications;
  3. Optimization methods for waste heat recovery systems;
  4. Modeling methods for waste heat recovery systems;
  5. Thermal economics of waste heat recovery systems.

Dr. Yinsheng Yu
Guest Editor

Manuscript Submission Information

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Keywords

  • waste heat utilization
  • thermal storage technology
  • energy efficiency analysis
  • system modeling
  • optimal design

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Published Papers (1 paper)

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Research

22 pages, 4794 KiB  
Article
Optimization of Hydrogen Production System Performance Using Photovoltaic/Thermal-Coupled PEM
by Guorong Li, Chen Song, Guang Han, Zihao Chen and Jiwei Huang
Energies 2024, 17(21), 5405; https://doi.org/10.3390/en17215405 - 30 Oct 2024
Viewed by 841
Abstract
A proton exchange membrane electrolyzer can effectively utilize the electricity generated by intermittent solar power. Different methods of generating electricity may have different efficiencies and hydrogen production rates. Two coupled systems, namely, PV/T- and CPV/T-coupling PEMEC, respectively, are presented and compared in this [...] Read more.
A proton exchange membrane electrolyzer can effectively utilize the electricity generated by intermittent solar power. Different methods of generating electricity may have different efficiencies and hydrogen production rates. Two coupled systems, namely, PV/T- and CPV/T-coupling PEMEC, respectively, are presented and compared in this study. A maximum power point tracking algorithm for the photovoltaic system is employed, and simulations are conducted based on the solar irradiation intensity and ambient temperature of a specific location on a particular day. The simulation results indicate that the hydrogen production is relatively high between 11:00 and 16:00, with a peak between 12:00 and 13:00. The maximum hydrogen production rate is 99.11 g/s and 29.02 g/s for the CPV/T-PEM and PV/T-PEM systems. The maximum energy efficiency of hydrogen production in CPV/T-PEM and PV/T-PEM systems is 66.7% and 70.6%. Under conditions of high solar irradiation intensity and ambient temperature, the system demonstrates higher total efficiency and greater hydrogen production. The CPV/T-PEM system achieves a maximum hydrogen production rate of 2240.41 kg/d, with a standard coal saving rate of 15.5 tons/day and a CO2 reduction rate of 38.0 tons/day. Compared to the PV/T-PEM system, the CPV/T-PEM system exhibits a higher hydrogen production rate. These findings provide valuable insights into the engineering application of photovoltaic/thermal-coupled hydrogen production technology and contribute to the advancement of this field. Full article
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