Green Fuels: Utilization, Production and Processing Technologies

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

Deadline for manuscript submissions: 30 August 2024 | Viewed by 830

Special Issue Editors


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Guest Editor
College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Interests: marine engine; fuel spray and atomization; low-carbon combustion

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Guest Editor
Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian 116024, China
Interests: carbon neutral fuel; carbon neutral power source; engine combustion; fuel injection
Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8564, Japan
Interests: fuel spray and combustion; liquid ammonia; compression ignition engines; electro-fuel

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Guest Editor
School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: spray and combustion; optical diagnostics; renewable energy

Special Issue Information

Dear Colleagues,

Green fuels have been a hot topic among researchers and manufacturers owing to the opportunities and challenges of carbon neutrality. Recently, many advanced developments have been reported related to the performance, processing and utilization of green fuel technology. These green fuels include zero-carbon fuel (ammonia and hydrogen), carbon-neutral fuel (biodiesel and methanol), and low-carbon fuel (methane and natural gas). How to produce and transport these green fuels is a great technical challenge. Furthermore, all of these fuels need to be able to be used in international combustion engines. Therefore, how to develop a high-efficiency and low-emission combustion strategy for these engines is an another significant challenge. Moreover, with strict rules regarding emissions from gas turbine, marine and automobile engines, how to apply these advanced atomization and combustion strategies under the specific working conditions in different engines also should be considered deeply.

This Special Issue on “Green Fuels: Utilization, Production and Processing Technologies” welcomes the submission of high-quality works focusing on the latest novel advances in technology for the production and combustion of green fuels. Topics include, but are not limited to:

  • Green fuel resource technology;
  • Green fuel storage and transportation;
  • Fundamental research on green fuel combustion;
  • Spray and clean combustion in gas turbine, marine and automobile engines

Dr. Hongliang Luo
Dr. Pengbo Dong
Dr. Chang Zhai
Dr. Tiemin Xuan
Guest Editors

Manuscript Submission Information

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Keywords

  • green fuel
  • zero-carbon combustion
  • low-carbon fuel processing
  • high-efficiency combustion
  • low-emission combustion
  • advanced combustion strategy
  • atomization technology
  • internal combustion engine
  • marine engine development

Published Papers (1 paper)

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Research

13 pages, 3544 KiB  
Article
Study on Hydrogen Direct Injection in RNG Combustion under Various Ignition Timings for Power Generation in a Retrofitted Gas Engine
by Meiqi Yu, Hongliang Luo, Beini Zhou, Yang Liu, Chang Zhai, Keiya Nishida and Jun-Cong Ge
Processes 2024, 12(3), 585; https://doi.org/10.3390/pr12030585 - 14 Mar 2024
Viewed by 500
Abstract
Renewable natural gas (RNG) is attractive for energy policy goals in the world. Therefore, a regional system is designed to explore RNG combustion for power generation in localities. This study investigates a direct injection (DI) engine fueled with hydrogen (H2) blended [...] Read more.
Renewable natural gas (RNG) is attractive for energy policy goals in the world. Therefore, a regional system is designed to explore RNG combustion for power generation in localities. This study investigates a direct injection (DI) engine fueled with hydrogen (H2) blended into the simulated renewable natural gas, which consists of 50% methane (CH4) and 50% carbon dioxide (CO2) in volume. In order to obtain higher efficiency, comparisons between DI and port fuel injection (PFI) of H2 addition were made. Then, the volume percentage of H2 was changed from 20% to 100% by keeping the volume ratio of CH4 and CO2 at 1:1. Finally, results of power output, brake mean effective pressure (BMEP), brake thermal efficiency (BTE) and brake specific fuel consumption (BSFC) were discussed. Results showed that in contrast to PFI, H2 DI injection could increase efficiency by 4%. Additionally, H2 DI could retard the MBT ignition timing at 5 °CA. Compared with CH4/CH4 + CO2 combustion, under stoichiometric combustion, BMEP increases with H2 addition but BTE decreases significantly. However, by enlarging the excess air ratio (λ) to 1.24, both BMEP and BTE increase obviously with H2 addition. Moreover, when λ < 1.3, the MBT ignition timing should be advanced from −10 to 15 °CA top dead center (TDC). But the MBT ignition timing is fixed at −25 °CA TDC when λ is larger than 1.3. Furthermore, if efficiency is the priority, 30% H2 addition with λ at 1.24 (−15 °CA TDC) should be selected. If higher BMEP is preferred, 20% H2 addition with λ at 0.99 (−10 °CA TDC) should be selected. Full article
(This article belongs to the Special Issue Green Fuels: Utilization, Production and Processing Technologies)
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