Frontiers in energy
Papers 615
1 page of 62 pages (615 results)
#1Wenchi Gong (CAS: Chinese Academy of Sciences)H-Index: 1
#2Jun Shen (CAS: Chinese Academy of Sciences)H-Index: 14
Last.Maoqiong Gong (CAS: Chinese Academy of Sciences)H-Index: 16
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This paper investigated effects of slip length and hydraulic diameter on the hydraulic entrance length of laminar flow in superhydrophobic microchannels. Numerical investigations were performed for square microchannels with Re ranging between 0.1 and 1000. It is found that superhydrophobic microchannels have a longer hydraulic entrance length than that of conventional ones by nearly 26.62% at a low Re. The dimensionless hydraulic entrance length slightly increases with the increasing slip length...
#1Wang Liu (SJTU: Shanghai Jiao Tong University)H-Index: 1
#2Jiaqi Zhai (SJTU: Shanghai Jiao Tong University)H-Index: 3
Last.Dong Han (SJTU: Shanghai Jiao Tong University)H-Index: 14
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The evolution of particle size distribution function (PSDF) of soot in premixed flames of benzene and toluene was studied on a burner stabilized stagnation (BSS) flame platform. The cold gas velocities were changed to hold the maximum flame temperatures of different flames approximately constant. The PSDFs of all the test flames exhibited a bimodal distribution, i.e., a small-size nucleation mode and a large-size accumulation mode. It was observed that soot nucleation and particle growth in the ...
#1Lijie Zhang (Nanjing University of Science and Technology)
#2Kaixuan Yang (Nanjing University of Science and Technology)
Last.Dong Liu (Nanjing University of Science and Technology)H-Index: 24
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This paper investigated the nanostructure and oxidation reactivity of soot generated from biofuel 2,5-dimethylfuran pyrolysis with different CO2 additions and different temperatures in a quartz tube flow reactor. The morphology and nanostructure of soot samples were characterized by a low and a high resolution transmission electron spectroscopy (TEM and HRTEM) and an X-ray diffraction (XRD). The oxidation reactivity of these samples was explored by a thermogravimetric analyzer (TGA). Different s...
#1Haoshu ShenH-Index: 2
#2Yuxin WuH-Index: 14
Last.Junfu LyuH-Index: 4
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Large eddy simulation (LES) has become a promising tool for pulverized coal combustion with the development of computational fluid dynamics (CFD) technologies in recent years. LES can better capture the unsteady features and turbulent structures of coal jet flame than Reynolds averaged Navier Stokes (RANS). The coal-fired power plants in China are now required to be operated in a wide load range and quickly respond to the electric grid. The boiler performance of variable loads should be evaluate...
#1Mingqiang Lin (CAS: Chinese Academy of Sciences)
#2Jian Mou (CAS: Chinese Academy of Sciences)
Last.Gu Hu (China National Nuclear Corporation)
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The power system of a free piston Stirling generator (FPSG) based on potassium heat pipes has been developed in this paper. Thanks to the advantages of long life, high reliability, and high overall thermal efficiency, the FPSG is a promising candidate for nuclear energy, especially in space exploration. In this paper, the recent progress of FPSG based on nuclear reactor for space use was briefly reviewed. A novel FPSG weighted only 4.2 kg was designed, and one dimensional thermodynamic modeling ...
#1Boqiang Lin (Ha Tai: Xiamen University)
#2Hermas Abudu (Ha Tai: Xiamen University)
Energy intensity and elasticity, together with inter-fuel substitution are key issues in the current development stage of Ghana. Translog production and ridge regression are applied for studying these issues with a data range of 2000–2015. The current energy dynamics reveal the expected inverse relationship: higher energy intensity and lower elasticity with economic growth. There are evidences of energy-economic challenges: high energy cost, inefficiency and backfire rebound effect. The implicat...
#1Xiaoqian Song (SJTU: Shanghai Jiao Tong University)H-Index: 2
#2Yong GengH-Index: 57
Last.Yiqing ZhangH-Index: 1
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Environmental infrastructure investment (EII) is an important environmental policy instrument on responding to greenhouse gas (GHG) emission and air pollution. This paper employs an improved stochastic impact by regression on population, affluence and technology (STRIPAT) model by using panel data from 30 Chinese provinces and municipalities for the period of 2003–2015 to investigate the effect of EII on CO2 emissions, SO2 emissions, and PM2.5 pollution. The results indicate that EII has a posit...
#1Jiahui Jin (Beijing University of Technology)
#2Lei Wang (CAS: Chinese Academy of Sciences)H-Index: 47
Last.Yuanwei Lu (Beijing University of Technology)
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Inspired by the promising hydrogen production in the solar thermochemical (STC) cycle based on non-stoichiometric oxides and the operation temperature decreasing effect of methane reduction, a high-fuel-selectivity and CH4-introduced solar thermochemical cycle based on MoO2/Mo is studied. By performing HSC simulations, the energy upgradation and energy conversion potential under isothermal and non-isothermal operating conditions are compared. In the reduction step, MoO2:CH4 = 2 and 1020 K < Tred...
#1Liang Yin (SJTU: Shanghai Jiao Tong University)
#2Yonglin Ju (SJTU: Shanghai Jiao Tong University)H-Index: 18
The key technologies of liquefied hydrogen have been developing rapidly due to its prospective energy exchange effectiveness, zero emissions, and long distance and economic transportation. However, hydrogen liquefaction is one of the most energy-intensive industrial processes. A small reduction in energy consumption and an improvement in efficiency may decrease the operating cost of the entire process. In this paper, the detailed progress of design and optimization for hydrogen liquefaction in r...
#1Junheng Fu (CAS: Chinese Academy of Sciences)
#2Chenglin Zhang (CAS: Chinese Academy of Sciences)
Last.Jing LiuH-Index: 50
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The room temperature liquid metal (LM) is recently emerging as a new class of versatile materials with fascinating characteristics mostly originated from its simultaneous metallic and liquid natures. The melting point is a typical parameter to describe the peculiarity of LM, and a pivotal factor to consider concerning its practical applications such as phase change materials (PCMs) and advanced thermal management. Therefore, the theoretical exploration into the melting point of LM is an essentia...
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