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Technologies for Carbon Emission Mitigation

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B3: Carbon Emission and Utilization".

Deadline for manuscript submissions: closed (20 May 2022) | Viewed by 4508

Special Issue Editors


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Guest Editor
School of Mechanical Engineering, Chungbuk National University, Cheongju 28644, Republic of Korea
Interests: waste heat recovery; CO2 conversion; solar energy
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Mechanical Engineering, Chungbuk National University, Cheongju 28644, Korea
Interests: heat exchangers; heat pipes; thermoelectric modules
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recently, interest in reducing carbon dioxide (CO2) emissions has increased and regulations have intensified. Tremendous efforts are made to reduce CO2 emissions via fundamental and applied research. CO2 emissions can be mitigated by improving the thermal efficiency of internal combustion engines. Innovation of thermodynamic cycles, for example, cogeneration, organic Rankine, and combined cycle with waste heat recovery, leads to higher thermal efficiency. In addition, technologies for sequestrating or converting are emerging to suppress CO2 accumulation in the atmosphere. While reducing fossil fuel dependency, renewable energy technologies also offer an indirect technical solution to CO2 emissions.

The contribution of these technologies to CO2 mitigation is definitely remarkable, but more effort still needs to be expended until the concentration of CO2 in the atmosphere is sustainable. With such a goal in mind, this Special Issue aims to collect original research or review articles on various technologies conducive to reducing greenhouse gas emissions. The scope of the issue is broad and not limited to the topics mentioned above. Any research topic contributing to greenhouse gas mitigation will be considered.

Prof. Dr. Kibum Kim
Prof. Dr. Seok-Ho Rhi
Guest Editors

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Keywords

  • CO2 emission
  • CO2 mitigation
  • greenhouse gas mitigation
  • waste heat recovery
  • carbon capture and sequestration
  • carbon capture and utilization
  • cogeneration
  • organic Rankine cycle
  • renewable energy

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Published Papers (2 papers)

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Research

13 pages, 4528 KiB  
Article
Techno-Environmental Mission Evaluation of Combined Cycle Gas Turbines for Large Container Ship Propulsion
by Abdulaziz M. T. Alzayedi, Amit Batra, Suresh Sampath and Pericles Pilidis
Energies 2022, 15(12), 4426; https://doi.org/10.3390/en15124426 - 17 Jun 2022
Cited by 3 | Viewed by 1928
Abstract
The stringent regulations set by the International Maritime Organization on pollutant emissions combined with the rise in fuel prices have stimulated research on cleaner fuels and new propulsion systems. This study describes a new method for evaluating alternative technologies and cleaner fuels that [...] Read more.
The stringent regulations set by the International Maritime Organization on pollutant emissions combined with the rise in fuel prices have stimulated research on cleaner fuels and new propulsion systems. This study describes a new method for evaluating alternative technologies and cleaner fuels that can be utilised in the marine sector to replace heavy fuel oil and diesel engines, and thus improve their performance while lowering carbon dioxide and nitrogen oxide emissions. The proposed techno-environmental technique allows consistent evaluation of simple intercooler/reheat gas and steam combined cycles fuelled by marine diesel fuel and liquefied natural gas, instead of a two-stroke diesel engine fuelled by marine diesel fuel, as a propulsion system of a large container ship. The implementation of the enhanced combined gas and steam cycles, and combined gas and steam cycles, fuelled by liquefied natural gas, increases the engine’s efficiency by 11% as compared with that of two-stroke diesel engines that run on marine diesel oil, while decreasing carbon dioxide and nitrogen oxide emissions by 44.7% and 76.3%, respectively. In addition, the advantages of using a gas and steam combined cycle to burn LNG over the gas and steam combined cycle for burning marine diesel oil are demonstrated. Full article
(This article belongs to the Special Issue Technologies for Carbon Emission Mitigation)
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15 pages, 5448 KiB  
Article
Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials
by Jihu Lee, Sung-Hun Son and Kibum Kim
Energies 2021, 14(21), 7423; https://doi.org/10.3390/en14217423 - 8 Nov 2021
Cited by 2 | Viewed by 2123
Abstract
Indoor heating systems currently used are highly dependent on fossil fuels; hence, it is urgent to develop a new heating system to achieve carbon zero-emission. A solar air heater is eco-friendly because it generates nearly zero greenhouse gases. In this study, a parametric [...] Read more.
Indoor heating systems currently used are highly dependent on fossil fuels; hence, it is urgent to develop a new heating system to achieve carbon zero-emission. A solar air heater is eco-friendly because it generates nearly zero greenhouse gases. In this study, a parametric study was conducted for optimizing solar air heater design applicable to indoor heating. Installing the internal structure in the solar heater changes the interior flow characteristic, resulting in the air temperature increased by about 14.2 K on average compared to the heater without the internal structure. An additional case study was carried out to optimize the ideal quantity of phase change materials (PCM) in terms of mass fraction and heat capacity for various operating conditions. An excessive amount of PCM (e.g., 66% of the storage space filled with PCM) deteriorates the performance of the air heater unless the entire PCM could be melted during the daytime. After heating, the air temperature was maintained the longest when only 33% of the internal space was filled with PCM. The solar air heater can fully replace or partly assist a conventional heater for indoor heating, and it could reduce approximately 0.6 tCO2 per year. Full article
(This article belongs to the Special Issue Technologies for Carbon Emission Mitigation)
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