Experimental and Numerical Study of Energy and Thermal Management Systems

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (15 June 2024) | Viewed by 1671

Special Issue Editors


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Guest Editor
Federal Institute of Pernambuco-IFPE, Recife, Brazil
Interests: heat and mass transfer processes; cogeneration and trigeneration-energy polygeneration; absorption and mechanical compression refrigeration; energy, exergy and financial analysis of energy systems; application of machine learning of energy engineering; renewables energy
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Guest Editor Assistant
DACS, DACT, CACSEM, CACTR, IFPE-Federal Institute of Education, Science, and Technology of Pernambuco, Campus Recife, Recife, Brazil
Interests: refrigeration; HVAC; wind turbine; anomaly detection; reliability; vibration; artificial intelligence
Special Issues, Collections and Topics in MDPI journals

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Guest Editor Assistant
DACS, DACT, CACSEM, CACTM, IFPE-Federal Institute of Education, Science, and Technology of Pernambuco, Campus Recife, Recife, Brazil
Interests: heat and mass transfer; CFD simulations; polygeneration; numerical simulation; solar and wind energies; vibration
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The convergence between experimental research and numerical modeling is central to advancing the understanding of thermal energy and systems management. The relentless pursuit of energy efficiency and the intelligent, optimized management of thermal systems are now global imperatives. In this context, the search for innovative methodologies capable of identifying more appropriate forms and procedures to configure the use, processing, and execution of energy efficiently is a constant challenge. This challenge is driven by the need to achieve greater efficiency from a technical point of view and consider financial and environmental aspects. Integrating experimental and/or real studies with advanced numerical simulations aims to optimize the use of resources, improve sustainability, and develop innovative strategies for thermal management. For this purpose, we would like to invite you to submit your original research to this Special Issue of Processes, entitled "Experimental and Numerical Study of Energy and Thermal Management Systems". Topics of interest in this Special Issue include, but are not limited to, the following:

  • Energy, exergy, and exergoenvironmental analyses of polygeneration systems;
  • Sustainable energy and its applications;
  • Advanced production and energy management technologies;
  • Environmental impact and sustainability in thermal systems;
  • Optimization of polygeneration systems;
  • Energy storage: applications and challenges;
  • Development of technologies for collecting, storing, and processing experimental and/or real data.

Thank you in advance for your significant contribution to this ever-evolving discussion on energy efficiency and innovative thermal management.

Prof. Dr. Alvaro Antonio Ochoa Villa
Guest Editor

Dr. Gustavo De Novaes Pires Leite
Dr. José Ângelo Peixoto Da Costa
Guest Editor Assistants

Manuscript Submission Information

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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. Processes is an international peer-reviewed open access monthly 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 2400 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

  • sustainability
  • energy efficiency
  • energy polygeneration
  • renewable energy and applications
  • advantages and limitations of energy management
  • mathematical and numerical modeling
  • experimental analysis
  • optimized energy policies

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Published Papers (2 papers)

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Research

19 pages, 3366 KiB  
Article
Economic and Technical Assessing the Hybridization of Solar Combined Cycle System with Fossil Fuel and Rock Bed Thermal Energy Storage in Neom City
by Abdulrazzak Akroot and Abdullah Sultan Al Shammre
Processes 2024, 12(7), 1433; https://doi.org/10.3390/pr12071433 - 9 Jul 2024
Viewed by 600
Abstract
Rising energy demands, the depletion of fossil fuels, and their environmental impact necessitate a shift towards sustainable power generation. Concentrating solar power (CSP) offers a promising solution. This study examines a hybridization of a combined cycle power plant (CCPP) based on solar energy [...] Read more.
Rising energy demands, the depletion of fossil fuels, and their environmental impact necessitate a shift towards sustainable power generation. Concentrating solar power (CSP) offers a promising solution. This study examines a hybridization of a combined cycle power plant (CCPP) based on solar energy with fossil fuel and energy storage in rock layers to increase Saudi Arabia’s electricity production from renewable energy. The fuel is used to keep the temperature at the inlet of the gas turbine at 1000 °C, ensuring the power produced by the Rankine cycle remains constant. During the summer, the sun is the main source of power generation, whereas in the winter, reliance on fuel increases significantly. The Brayton cycle operates for 10 h during peak solar radiation periods, storing exhaust heat in rock beds. For the remaining 14 h of the day, this stored heat is discharged to operate the Rankine steam cycle. Simulations and optimizations are performed, and the system is evaluated using a comprehensive 4E analysis (energy, exergy, exergoconomic, and environmental) alongside a sustainability assessment. A parametric evaluation examines the effect of key factors on system performance. The rock bed storage system compensates for solar intermittency, enabling power generation even without sunlight. The study reveals that the system generated 12.334 MW in June, achieving an energy efficiency of 37% and an exergy efficiency of 40.35%. The average electricity cost during this period was 0.0303 USD/kWh, and the carbon footprint was 0.108 kg CO2/kWh. In contrast, during January, the system produced 13.276 MW with an energy efficiency of 37.91% and an exergy efficiency of 44.16%. The average electricity cost in January was 0.045 USD/kWh, and the carbon footprint was 0.1 kg CO2/kWh. Interestingly, solar energy played a significant role: it contributed 81.42% of the heat in June, while in January, it accounted for 46.77%. The reduced electricity costs during June are primarily attributed to the abundant sunshine, which significantly powered the system. Full article
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20 pages, 5859 KiB  
Article
Analysis and Optimization of the Fuel Consumption of an Internal Combustion Vehicle by Minimizing the Parasitic Power in the Cooling System
by Pedro H. A. Brayner, José Â. P. da Costa, Alvaro A. V. Ochoa, José J. Urbano, Gustavo N. P. Leite and Paula S. A. Michima
Processes 2024, 12(2), 321; https://doi.org/10.3390/pr12020321 - 2 Feb 2024
Viewed by 815
Abstract
This study aims to enhance energy efficiency by reducing parasitic losses in the engine cooling system through a new drive strategy involving a two-stage water pump and a variable electro-fan. The fuel consumption gain analysis focused on a vehicle with average characteristics typical [...] Read more.
This study aims to enhance energy efficiency by reducing parasitic losses in the engine cooling system through a new drive strategy involving a two-stage water pump and a variable electro-fan. The fuel consumption gain analysis focused on a vehicle with average characteristics typical of 1.0L hatchbacks in the Brazilian market and urban driving conditions. The methodology implemented aims to minimize power absorbed by the forced water circulation and thermal rejection, thereby reducing parasitic losses, particularly during low-speed urban driving, without causing air-side heat exchanger saturation. The results show a potential decrease of up to 80% in power absorbed by the cooling system, leading to an estimated fuel consumption saving of approximately 1.4% during urban driving cycles. Full article
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