Results 61 to 70 of about 717 (182)

Stability analysis of hyperbolic coal pillars with peeling and high temperature effects

Energy Exploration & Exploitation, 2020
In this present study, a twice-peeling model was established to analyze the hyperbolic coal pillars stability in underground coal gasification and then propose the concept of stripping degree to show model details for numerical simulation. The data shows
Youyou Xu, Huaizhan Li, Guangli Guo, Xiaopeng Liu   +3 more
doaj   +1 more source

Hydrogen Production From Steam–Methane Reforming and Electrolysis: A Comprehensive Review of Conventional and Solar‐Powered Technologies

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This review provides a systematic and technically detailed analysis of hydrogen (H2) production via steam–methane reforming (SMR) and water electrolysis, with particular emphasis on the integration of solar energy to enhance sustainability and reduce carbon intensity.
Hussein Togun, Ali Basem, Hayder A. Dhahad, Abdul Amir H. Kadhum, Abdellatif M. Sadeq, Nirmalendu Biswas, Hayder I. Mohammed, Anirban Chattopadhyay, Bhupendra K. Sharma, Dipankar Paul, Dipak Kumar Mandal, Semen Klyamkin   +11 more
wiley   +1 more source

Applicability of Acoustic Emission Monitoring to Estimate Gasification Area in Underground Coal Gasification

Journal of MMIJ
Underground Coal Gasification (UCG) is a promising process for recovering energy from potential underground coal resources as combustible gases such as hydrogen and carbon monoxide.
Akihiro HAMANAKA, Yuma ISHII, Ken-ichi ITAKURA, Fa-qiang SU, Jun-ichi KODAMA, Takashi SASAOKA, Hideki SHIMADA, Gota DEGUCHI   +7 more
doaj   +1 more source

Critical Analysis of Underground Coal Gasification Models. Part I: Equilibrium Models – Literary Studies

Journal of Sustainable Mining, 2014
Purpose: Underground coal gasification is a very difficult process due to changes in the parameters over time and within the space of the reactor and a variety of phenomena that occurs there.
Alina Żogała
doaj   +1 more source

Green Hydrogen Pathways for Sustainable Urban Development: Infrastructure, Policy, and Sociotechnical Integration

Journal of Engineering, Volume 2026, Issue 1, 2026.
The rapid urbanization rate has put pressure on energy systems, which has led to increased greenhouse gas emissions and environmental challenges. However, the emergence of green hydrogen, which is produced using the process of electrolysis through the use of renewable energy sources, has been identified as a clean and efficient form of energy that can ...
Emmanuel Emeka Arinze, Godswill Chukwunenye Okechukwu, Somto Benjamin Anieto, Chukwuma Charles Okafor, Nwanneka Chibuzor Mmonwuba, Goodluck Ezekiel Eke, Benjamin Nnamdi Ekwueme, Joseph Chijioke Emole, David Idoko, Godswill Chinasaokwu Ndubuisi, Daniel Enechojo Akor, Izuchukwu Victor Orji, Kenneth Chibunna Ikpendu, FearGod Eze Ulu, Success Onyinyechi Lemechi, Assed Naked Haddad   +15 more
wiley   +1 more source

Deviated and Horizontal Wells Drilling Technology in Coal Seams [PDF]

Acta Montanistica Slovaca, 2006
Drilling in coal seams becomes more and more popular at the present time, especially due to the fact that coal can be exploited not only by subsurface or surface mining methods but also in much cleaner way – underground coal gasification.
Ján Pinka, Ladislav Vizi, Marián Marcin   +2 more
doaj  

Critical Analysis of Underground Coal Gasification Models. Part II: Kinetic and Computational Fluid Dynamics Models

Journal of Sustainable Mining, 2014
Purpose: Underground coal gasification, as a complex and technically difficult process, in many aspects requires the support provided by computer simulations.
Alina Żogała
doaj   +1 more source

Thermo-mechanical coupling numerical simulation method under high temperature heterogeneous rock and application in underground coal gasification

Energy Exploration & Exploitation, 2020
The heterogeneity of a rock mass under high temperature and its thermo-mechanical coupling characteristics are difficult problems to investigate. This situation brings considerable difficulties to the study of underground coal gasification under thermo ...
Xiaopeng Liu, Guangli Guo, Huaizhan Li
doaj   +1 more source

Key technologies for low-carbon modern coal-based energy

Meitan xuebao
Coal energy has made a significant contribution to the development of human industrialization, but coal energy is faced with the major problem of high carbon emissions. Modern coal-based energy is a new path to crack the contradiction between coal energy
Shirong GE, Shuqin LIU, Jingli FAN, Yixin ZHAO, Teng TENG   +4 more
doaj   +1 more source

Drilling in Underground Coal Gasification with Coiled Tubing Technologies [PDF]

Acta Montanistica Slovaca, 2006
Underground coal gasification is the potential to provide a clean, efficient and convenient source of energy from coal seams where traditional mining methods are either impossible or uneconomical.
Monika Blišťanová, Lucia Sciranková
doaj