Qingquan Liu
China University of Mining and Technology
227 Papers
809 Citations
Qingquan Liu is an academic researcher from China University of Mining and Technology. The author has contributed to research in topics: Coal & Coal mining. The author has an hindex of 30, co-authored 186 publications. Previous affiliations of Qingquan Liu include University of the Sciences & Hunan University of Science and Technology.
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Papers
A Mathematical Model of Coupled Gas Flow and Coal Deformation with Gas Diffusion and Klinkenberg Effects
TL;DR: In this article, the influence of gas diffusion behavior on gas flow and permeability evolution in coal seams is evaluated, and the numerical results indicate that the effects of the gas diffusion behaviour and Klinkenberg behavior can have a critical influence on the gas pressure, residual gas content, and percolation evolution during the entire methane degasification period.
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Polymer dielectric films exhibiting superior high-temperature capacitive performance by utilizing an inorganic insulation interlayer.
Tiandong Zhang,Lianyin Yang,Changhai Zhang,Yu Shuang Feng,Jian Wang,Zhonghui Shen,Xingguo Chen,Qingquan Liu,Qingguo Chi +8 more
TL;DR: In this article , a facile but effective method is proposed to improve high temperature capacitive performance by utilizing an inorganic insulation interlayer, which can significantly increase the discharge energy density with a high efficiency above 90% at 150 °C.
126
Experimental investigation of pore structure damage in pulverized coal: Implications for methane adsorption and diffusion characteristics
TL;DR: In this article, the effect of pulverization on coal's pore structure and the implications for methane adsorption and diffusion properties were investigated using three kinds of high volatile bituminous coals.
114
Effects of diffusion and suction negative pressure on coalbed methane extraction and a new measure to increase the methane utilization rate
TL;DR: In this paper, a gas-solid coupling model considering pseudo-steady diffusion in coal matrix, seepage in fractures, permeability evolution and coal deformation was used to analyze the effect of diffusion and suction negative pressure on methane extraction.
110
Converting Pomelo Peel into Eco-friendly and Low-Consumption Photothermic Biomass Sponge toward Multifunctioal Solar-to-Heat Conversion
Chang Zhang,Chang Zhang,Peng Xiao,Feng Ni,Luke Yan,Qingquan Liu,Dong Zhang,Jincui Gu,Wenqin Wang,Tao Chen +9 more
TL;DR: In this article, the authors considered converting waste into versatile materials has been considered as an effective strategy to tackle environmental issues such as shortages in food, clean water, and energy. But conventional carbonization...
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