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Thermal Power Systems and Alternative Energy

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

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 7699

Special Issue Editors


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Guest Editor
Department of Mechanical Engineering, University of Engineering & Technology (UET), Lahore 54890, Pakistan
Interests: thermal power systems; refrigeration and air conditioning; after treatment for gasoline and diesel engine emissions; alternative energy sources, recovery, utilization and environmental sustainability; lubricants, tribology and materials; artificial intelligence in engineering problems

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Guest Editor
Faculty of Engineering and IT, University of Technology Sydney, Sydney 2007, Australia
Interests: automobile engineering; engineering thermodynamics; thermal engineering; energy engineering; energy conversion; renewable energy; energy environment; thin films and nanotechnology; renewable energy technologies
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Mechanical & Mechatronics Engineering, College of Engineering, Dohfar University Salalah, Sultanate, Oman
Interests: salinity gradient power generation systems; osmotic heat engine; desalination; water desalination systems; process optimization and integration; ultrapure water for steam power plants; carbon capture; post-combustion carbon capture systems; engine performance; SI engine performance and emission evaluation for alternative fuels; solar thermal powered desalination systems; renewable power integrated desalination systems

Special Issue Information

Dear Colleagues,

With the steep surge in energy demand along with intense industrialization and population of the world, the advancement in techniques for improving thermal power systems will remain attractive among scientists. Vital factors to counter thermal energy requirement and distribution involve the economics, design, working, prediction, and optimization of thermal power systems. Furthermore, the outcomes of such systems rely on the planned energy resource (solar energy, fossil fuels, hydroxy gas, geothermal and nuclear power, waste incineration, and biofuels). Special thermal power systems are also developed to generate thermal energy for district heating and other industrial purposes in addition to electricity generation. Prominently, in the conversion systems powered by fuels, pollutants appear in the exhaust gases owing to partial combustion and inappropriate mixing of fuel and air, which may yield steady degradation of functional attributes of plant life. Therefore, an inclusive appreciation is also essential for exergy, energy, entropy, and enviro-economic analyses of thermal systems powered with various energy sources to reduce the various losses along with pollutants. This Special Issue intends to promote the advancement made not only in conventional thermal power systems but also alternative energy systems with substantial prospective. The Special Issue will publish both original and review articles.

The potential topics of interest for the Issue include, but are not limited to, the following:

  • Biogas utilization in thermal energy systems;
  • Geo-thermal energy systems;
  • Heat Engines;
  • Impact of heat sink on performance;
  • Hydrogen usage for power generation;
  • Alternative Fuels;
  • Solar thermal energy systems;
  • Prediction and optimization of performance;
  • Emissions reduction;
  • Energy and entropy analysis;
  • Exergetic analysis;
  • Enviro-economic analysis;
  • Solar thermal powered desalination systems;
  • Renewable power integrated desalination systems;
  • Osmotic heat engine.

Dr. Muhammad Usman
Prof. Dr. Md. Abul Kalam
Dr. Muhammad Wajid Saleem
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.

Keywords

  • biogas utilization in thermal energy systems
  • geo-thermal energy systems
  • heat Engines
  • impact of heat sink on performance
  • hydrogen usage for power generation
  • alternative Fuels
  • solar thermal energy systems
  • prediction and optimization of performance
  • emissions reduction
  • energy and entropy analysis
  • exergetic analysis
  • enviro-economic analysis
  • thermal desalination

Published Papers (3 papers)

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Research

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16 pages, 4714 KiB  
Article
Thermal Performance Analysis of Various Heat Sinks Based on Alumina NePCM for Passive Cooling of Electronic Components: An Experimental Study
by Imran Zahid, Muhammad Farooq, Muhammad Farhan, Muhammad Usman, Adnan Qamar, Muhammad Imran, Mejdal A. Alqahtani, Saqib Anwar, Muhammad Sultan and Muhammad Yasar Javaid
Energies 2022, 15(22), 8416; https://doi.org/10.3390/en15228416 - 10 Nov 2022
Cited by 11 | Viewed by 2478
Abstract
In the modern digital world, electronic devices are being widely employed for various applications where thermal performance represents a significant technical challenge due to continued miniaturization, high heat generated in the system, and non-uniform high-temperature causing failure. Phase change materials (PCMs) owing to [...] Read more.
In the modern digital world, electronic devices are being widely employed for various applications where thermal performance represents a significant technical challenge due to continued miniaturization, high heat generated in the system, and non-uniform high-temperature causing failure. Phase change materials (PCMs) owing to the immense heat of fusion are primarily considered for thermal management, but their insulating properties hedge their applications in electronics cooling. Nano-enhanced phase change materials (NePCMs) have the ability to improve the thermal conductivity of PCM, decrease system temperature and escalate the operating time of devices. Accordingly, the current study focused on the experimental investigations for the thermal performance of three heat sinks (HS) with different configurations such as a simple heat sink (SHS), a square pin-fins heat sink (SpfHS), and Cu foam integrated heat sink (CufmHS) with various alumina nanoparticles mass concentrations (0.15, 0.20 and 0.25 wt%) incorporated in PCM (RT-54HC) and at heat flux (0.98–2.94 kW/m2). All HSs reduced the base temperature with the insertion of NePCM compared to the empty SHS. The experimental results identified that the thermal performance of CufmHS was found to be superior in reducing base temperature and enhancing working time at two different setpoint temperatures (SPTs). The maximum drop in base temperature was 36.95%, and a 288% maximum working time enhancement was observed for CufmHS. Therefore, NePCMs are highly recommended for the thermal management of the electronic cooling system. Full article
(This article belongs to the Special Issue Thermal Power Systems and Alternative Energy)
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11 pages, 1974 KiB  
Article
Analysis of the Impact of Propanol-Gasoline Blends on Lubricant Oil Degradation and Spark-Ignition Engine Characteristics
by Muhammad Kashif Jamil, Maaz Akhtar, Muhammad Farooq, Muhammad Mujtaba Abbas, Saad, Muhammad Khuzaima, Khurshid Ahmad, Md Abul Kalam and Anas Abdelrahman
Energies 2022, 15(15), 5757; https://doi.org/10.3390/en15155757 - 8 Aug 2022
Cited by 2 | Viewed by 1848
Abstract
Alcoholic fuels have recently come to light as a sustainable source for powering today’s vehicles. Various studies have investigated the effects of alcoholic fuels on engine efficiency and emission characteristics. However, scarce literature is available for their effects on lubricant. Therefore, propanol-gasoline fuel [...] Read more.
Alcoholic fuels have recently come to light as a sustainable source for powering today’s vehicles. Various studies have investigated the effects of alcoholic fuels on engine efficiency and emission characteristics. However, scarce literature is available for their effects on lubricant. Therefore, propanol-gasoline fuel mixtures, with concentrations of 9% (P9) and 18% (P18) propanol, were made to compare their engine characteristics and lubricating oil condition with that of pure gasoline (0 percent propanol (P0)). To determine the rate of deterioration, the characteristics of the lubricating oil were evaluated after 100 h of engine operation, as suggested by the manufacturer. When compared with unused lube oil, P18 showed reductions in flash point temperature and kinematic viscosity of 14% and 36%, respectively, at 100 °C. For P18, which contains Fe (27 PPM), Al (11 PPM), and Cu (14 PPM), the highest wear element concentrations in the lubricating oil were found. The moisture in the degraded oil was well within the allowable limit for the three fuel mixtures. With the increase in propanol percentage in the propanol-gasoline blend, the engine performance was increased. Compared to P9 and P0, P18 had the partially unburned emissions. Full article
(This article belongs to the Special Issue Thermal Power Systems and Alternative Energy)
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Review

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32 pages, 4876 KiB  
Review
Overview of Energy Harvesting Technologies Used in Road Vehicles
by Jacek Caban, Jan Vrabel, Dorota Górnicka, Radosław Nowak, Maciej Jankiewicz, Jonas Matijošius and Marek Palka
Energies 2023, 16(9), 3787; https://doi.org/10.3390/en16093787 - 28 Apr 2023
Cited by 9 | Viewed by 2747
Abstract
Road transport is one of the most important factors for the national economy due to its universality and comprehensive possibilities of transporting people and goods. Unfortunately, from the energy point of view, it is also the most cost-intensive and has a negative influence [...] Read more.
Road transport is one of the most important factors for the national economy due to its universality and comprehensive possibilities of transporting people and goods. Unfortunately, from the energy point of view, it is also the most cost-intensive and has a negative influence on the natural environment. For these reasons, issues related to limiting the use of conventional fuels are very important, which results in reducing emissions from this sector, as well as reducing transport costs. This article presents currently used energy sources for propulsion of road vehicles, including fossil and alternative fuels, gaseous fuels and other energy sources such as fuel cells. The following section presents technologies that allow to recover some of the energy lost in motor vehicles and internal combustion engines used for their propulsion. The principle of operation of these solutions, their structure and their main features are presented. The last part focuses on discussing and identifying the most universal technologies for energy harvesting in vehicles and showing further directions of energy development in the automotive sector. Full article
(This article belongs to the Special Issue Thermal Power Systems and Alternative Energy)
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