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Eco-Friendly Energy Generation
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Eco-Friendly Energy Generation

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 7759

Special Issue Editor

Dr. Dmitrii O. Glushkov

E-Mail Website
Guest Editor
Research School of High-Energy Physics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russian
Interests: fuels; combustion chemistry; waste to energy; thermal power engineering; environmental performance
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

There are many interrelated problems in power generation: (1) developing and introducing new technologies involving renewable energy sources and waste-derived fuels; (2) modernizing widely used technologies by enhancing the efficiency of industrial equipment and optimizing its operation conditions; and (3) reducing the negative impact of technological processes and their products on the environment.

Despite recent advancements in the development of alternative energy technologies, fossil fuels still dominate the production of power through steam boilers, gas turbines, internal combustion engines, etc. Thus, power generation represents an extensive field for the elaboration and implementation of solutions aimed at improving the technological, environmental, and economic performance of technological cycles.

In recent years, environmental and energy security issues have become especially important. Therefore, today, it is vital that we take care of nature. In the coming decades, scientific teams in different countries will face the challenge of developing sustainable and safe technologies for fuel use in the energy sector.

In this Special Issue, we will attempt to provide readers with the results of applied and fundamental research and reviews in the field of environmentally friendly technologies in power generation. We are pleased to invite researchers to contribute to the creation of a Special Issue dedicated to the various aspects of the sustainable use of fossil fuels, biomass, waste-derived fuels, and alternative energy sources.

Dr. Dmitrii O. Glushkov
Guest Editor

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. Applied Sciences 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 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

  • fossil fuels
  • waste-derived fuels
  • composite fuels
  • combustible wastes and biomass
  • fuel properties
  • new technologies of fuel conversion
  • power generation
  • emissions reduction

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Published Papers (4 papers)

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Research

18 pages, 1385 KiB  
Article
Comprehensive Energy Analysis of Vehicle-to-Grid (V2G) Integration with the Power Grid: A Systemic Approach Incorporating Integrated Resource Planning Methodology
by Marcos Frederico Bortotti, Pascoal Rigolin, Miguel Edgar Morales Udaeta and José Aquiles Baesso Grimoni
Appl. Sci. 2023, 13(20), 11119; https://doi.org/10.3390/app132011119 - 10 Oct 2023
Cited by 3 | Viewed by 3149
Abstract
This work aims at a comprehensive assessment of the impact of vehicle-to-grid (V2G) technology on both demand and supply sides, considering integrated resource planning for sustainable energy. By using a computational tool and evaluating the complete potentials, we divide the analysis into four [...] Read more.
This work aims at a comprehensive assessment of the impact of vehicle-to-grid (V2G) technology on both demand and supply sides, considering integrated resource planning for sustainable energy. By using a computational tool and evaluating the complete potentials, we divide the analysis into four dimensions: environmental, social, technical, economic, and political. Each dimension is further subdivided, allowing for a detailed characterization of the impacts across these various aspects. Our approach employs a simple yet effective algebraic method using matrices to evaluate all the elements involved in the V2G system. This case study focuses on the environmental and technical–economic aspects of integrating V2G technology into a city with industrial parameters. Our findings reveal improvements and future challenges to all four dimensions, including direct and indirect reductions in CO2 emissions. However, the limited availability of specific data in the social and political scopes highlight the need for further research in these areas. This study lays the groundwork for future investigations to explore the social and political implications of V2G technology, offering significant potential for future studies. Full article
(This article belongs to the Special Issue Eco-Friendly Energy Generation)
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18 pages, 13002 KiB  
Article
Influence of the Composition and Particle Sizes of the Fuel Mixture of Coal and Biomass on the Ignition and Combustion Characteristics
by Dmitrii Glushkov, Andrey Zhuikov, Nikolai Zemlyansky, Andrey Pleshko, Olga Fetisova and Petr Kuznetsov
Appl. Sci. 2023, 13(19), 11060; https://doi.org/10.3390/app131911060 - 8 Oct 2023
Cited by 2 | Viewed by 1435
Abstract
The work determines the characteristics of the processes of thermal decomposition and combustion when heating coal, cedar needles, and their mixtures with different fuel particle sizes. Based on the results of thermal analysis, the following characteristics were determined: the temperature at which the [...] Read more.
The work determines the characteristics of the processes of thermal decomposition and combustion when heating coal, cedar needles, and their mixtures with different fuel particle sizes. Based on the results of thermal analysis, the following characteristics were determined: the temperature at which the coke residue ignition occurs, the temperature at which the combustion process is completed, and the combustion index. An analysis was carried out of the interaction between the fuel mixture components on the characteristics of their combustion for compositions (50% coal and 50% biomass) with a particle size of 100–200 μm and 300–400 μm. The combustion kinetic parameters of individual solid fuels and their mixtures containing 50% coal and 50% biomass are compared. The activation energy for coal combustion was 60.3 kJ mol−1, for biomass 24.6 kJ mol−1, and for mixture 42.5 kJ mol−1. The co-combustion of coal and biomass has a positive effect on the main combustion characteristics of solid fuels. Fuels with particle sizes of 100–200, 200–300, and 300–400 μm were studied at temperatures of 500–800 °C under heating conditions in a heated airflow. Using a hardware-software complex for high-speed video recording of fast processes, the ignition delay times were determined, the values of which for the considered fuels vary in the range from 0.01 to 0.20 s. Adding 50 wt% biomass with particle sizes of 100–200, 200–300, and 300–400 μm to coal reduces the ignition delay times of mixtures by 55, 41, and 27%, respectively. The results obtained can become the basis for the conversion and design of modern power plants operating on solid fuel mixtures to co-combust coal with biomass. Full article
(This article belongs to the Special Issue Eco-Friendly Energy Generation)
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19 pages, 3058 KiB  
Article
Energy Management Capability in the Reconfigurable Distribution Networks with Distributed Generation for Minimization of Energy Loss
by Minmin Jiang and Yunfeng Zhang
Appl. Sci. 2023, 13(14), 8265; https://doi.org/10.3390/app13148265 - 17 Jul 2023
Cited by 1 | Viewed by 1175
Abstract
One of the approaches to improve operation indices, such as power loss and reliability, is to smoothen voltage profiles. Energy management of generation units and network reconfiguration are two methods to achieve this. Hence, the latter is presented in this paper in a [...] Read more.
One of the approaches to improve operation indices, such as power loss and reliability, is to smoothen voltage profiles. Energy management of generation units and network reconfiguration are two methods to achieve this. Hence, the latter is presented in this paper in a distribution with distributed generation units. To this end, an objective function is formulated aiming to minimize power loss and enhance the operating situation of the network. This problem is subject to various constraints and limits such as AC power flow equations, operation limits, planning model, and operation model of distributed generations. It is an integer nonlinear optimization problem and is solved using the crow search algorithm and the optimal solution is obtained. Two major innovations of the study include modeling generation units’ operation and network configuration mathematical expression of operation indicators. The method is applied to a test system and results demonstrate the high performance of this approach in improving the operation of the network. Finding the solution in less time with a satisfying standard deviation are two advantages of the proposed algorithm. Adopting this method, the network operator can reduce power loss through proper management of distributed generation power and optimal scheduling of switches. Moreover, the obtained voltage profile is more desirable in comparison to that of power flow studies. Full article
(This article belongs to the Special Issue Eco-Friendly Energy Generation)
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14 pages, 7672 KiB  
Article
Heat Transfer in Thermoelectric Generators for Waste Energy Recovery in Piston Engines
by Pablo Fernández-Yáñez, Javier Jarama, Francisco J. Martos and Octavio Armas
Appl. Sci. 2023, 13(9), 5647; https://doi.org/10.3390/app13095647 - 4 May 2023
Cited by 4 | Viewed by 1605
Abstract
This paper investigates the design of a thermoelectric generator for exhaust gases from internal combustion engines. Experimentally validated CFD methodology was employed. Different issues are studied, such as the influence of the replacement of the exhaust pipe for the TEG, the recirculation produced, [...] Read more.
This paper investigates the design of a thermoelectric generator for exhaust gases from internal combustion engines. Experimentally validated CFD methodology was employed. Different issues are studied, such as the influence of the replacement of the exhaust pipe for the TEG, the recirculation produced, and the influence of fins. The results show that an enlarged inlet cone reduces the recirculation and the pressure drop of the TEG, but more heat is lost across the cone walls, reducing the heat available for the thermoelectric modules. Internal straight fins aligned with the flow achieved a 3% increase in heat transfer, did not significantly increase the pressure drop in this type of device, and reduced the effects on pressure of the recirculation, lowering the overall pressure drop by 10%. An energy production of 175.9 W with 16.2 W of pressure drop power losses resulted in a net energy production of 160.7 W. A comparison with a flat-type thermoelectric generator under the same hot source conditions is also provided. Full article
(This article belongs to the Special Issue Eco-Friendly Energy Generation)
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