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| 1 | Progress and recent trend in MILD combustion显示文摘Moderate or intense low oxygen dilution(MILD)combustion plays a significant role in the mitigation of combustion-generated pollutants and greenhouse gases whilst meeting thermal efficiency needs.However,due to the lack of the fundamental knowledge on this combustion,there is a misconception that MILD combustion should be established by high preheating of the air,which has limited its application.Our research and development on this combustion has been performed for several years. We have found that the requirements for establishing the MILD combustion are more relaxed than previously.It is also revealed that this combustion of different type,i.e.,non-premixed,partially premixed and fully premixed,can be achieved by firing various fuels(i.e.,gaseous,liquid and solid fuels).It is suggested that the application of the MILD combustion can be expanded significantly.The present review summarizes the progress and recent trend made in the R&D of this combustion and recommends further fundamental studies for improving our knowledge and widening its applications. | LI PengFei MI JianChun DALLY B B WANG FeiFei WANG Lin LIU ZhaoHui CHEN Sheng ZHENG ChuGuang | 2011 | Science China(Technological Sciences)2011，54，2： | 31 |
| 2 | PIV measurements of turbulent jets issuing from triangular and circular orifice plates显示文摘The present study experimentally investigated the near-field flow mixing characteristics of two turbulent jets issuing from equilateral triangular and circular orifice plates into effectively unbounded surroundings,respectively.Planar particle image velocimetry(PIV) was applied to measure the velocity field at the same Reynolds number of Re=50,000,where Re = UeDe /with Ue being the exit bulk velocity and the kinematic viscosity of fluid,D e the equivalent diameters.The instantaneous velocity,mean velocity,Reynolds stresses were obtained.From the mean velocity field,the centreline velocity decay rate and half-velocity width were derived.Comparing the mixing characteristics of the two jets,it is found that the triangular jet has a faster mixing rate than the circular counterpart.The triangular jet entrainments with the ambient fluid at a higher rate in the near field.This is evidenced by a shorter unmixed core,faster Reynolds stress and centreline turbulence intensity growth.The primary coherent structures in the near field are found to break down more rapidly in the triangular jet as compared to the circular jet.Over the entire measurement region,the triangular jet maintained a higher rate of decay and spread.Moreover,all components of Reynolds stress of the triangular jet appear to reach their peaks earlier,and then decay more rapidly than those of the circular jet.In addition,the axis-switching phenomenon is observed in the triangular jet. | XU MinYi ZHANG JianPeng MI JianChun NATHAN G J KALT P A M | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，6： | 7 |
| 3 | Characteristics of Nitric-Oxide Emissions from Traditional Flame and MILD Combustion Operating in a Laboratory-Scale Furnace显示文摘This study investigated the formation and emission characteristics of nitric oxide(NO) from flameless MILD(moderate or intensive low-oxygen dilution) combustion(MILDC) versus traditional visible-flame combustion(TC) in a 30-k W furnace. Both combustion processes were experimentally operated successively in the same furnace, burning natural gas at a fixed rate of 19 k W and the equivalence ratio of 0.86. Numerical simulations of TC and MILDC were carried out to explain their distinction in the measured furnace temperature and exhaust NO emissions. Present measurements of the NO emission(XNO) versus a varying furnace wall temperature(Tw) have revealed, at the first time, that the relationship of XNO ~ Tw was exponential in both TC and MILDC. By analyzing the simulated results, the average temperature over the reaction zone was identified to be the common characteristic temperature for scaling NO emissions of both cases. Moreover, relative to TC, MILDC had a fairly uniform temperature distribution and low peak temperature, thus reducing the NO emission by over 90%. The thermal-NO formation was found to contribute more than 70%-80% to the total XNO from TC while the N2O-intermediate route dominated the NO emission from MILDC. | SHU Ziyun WANG Feifei DAI Chong SI Jicang WANG Bo MI Jianchun | 2020 | Journal of Thermal Science2020，29，4： | 2 |
| 4 | A humidity resistant and high performance triboelectric nanogenerator enabled by vortex-induced vibration for scavenging wind energy显示文摘Wind energy is a promising renewable energy source for a low-carbon society.This study is to develop a fully packaged vortexinduced vibration triboelectric nanogenerator(VIV-TENG)for scavenging wind energy.The VIV-TENG consists of a wind vane,internal power generation unit,an external frame,four springs,a square cylinder and a circular turntable.The internal power generation unit consists of polytetrafluoroethylene(PTFE)balls,a honeycomb frame and two copper electrodes.Different from most of the previous wind energy harvesting TENGs,the bouncing PTFE balls are fully packaged in the square cylinder.The distinct design separates the process of contact electrification from the external environment,and at the same time avoids the frictional wear of the ordinary wind energy harvesting TENGs.The corresponding VIV parameters are investigated to evaluate their influence on the vibration behaviors and the energy output.Resonant state of the VIV-TENG corresponds to the high output performance from the VIV-TENG.The distinct,robust structure ensures the full-packaged VIV-TENG can harvest wind energy from arbitrary directions and even in undesirable weather conditions.The study proposes a novel TENG configuration for harvesting wind energy and the VIV-TENG proves promising powering micro-electro-mechanical appliances. | Yan Wang Tianyu Chen Shuowen Sun Xiangyu Liu Zhiyuan Hu Zhenhui Lian Long Liu Qiongfeng Shi Hao Wang Jianchun Mi Tongming Zhou Chengkuo Lee Minyi Xu | 2022 | Nano Research2022，15，4： | 2 |
| 5 | A new mesh-independent model for droplet/particle collision显示文摘 | Zhang Jian Mi Jianchun Wang Hao | 2012 | Aerosol Science and Technology2012，46，6： | 1 |
| 6 | Importance of initialmomentum rate and air-fuel premixing on moderate or intense lowoxygen dilution ( MILD ) combustion in a recuperative furnace 显示文摘 | Mi Jianchun Li Pengfei Dally Bassam B | 2009 | Energy Fuels2009，23，11： | 1 |
| 7 | Importance of initial momentum rate and air-fuel premixing on moderate or intense low oxygen dilution (MILD) combustion in a recuperative furnace 显示文摘 | MI Jianchun LI Pengfei Dally B B et at | 2009 | Energy & Fuels2009，23，11： | 1 |
| 8 | Importance of initial momentum rate and air-fuel premixing on moderate or intense low oxygen dilution(MILD)combustion in a recuperative furnace显示文摘 | Mi Jianchun Li Pengfei Dally B B | 2009 | Energy&Fuels2009，23，11： | 1 |
| 9 | Premixed moderate or intense low-oxygen dilution(MILD)combustion from a single jet burner in a laboratory-scale furnace显示文摘 | Li Pengfei Mi Jianchun Dally B B | 2011 | Energy&Fuel2011，25，7： | 1 |
| 10 | Modified vitiation in a moderate or intense low-oxygen dilution(MILD)combustion furnace显示文摘 | Mi Jianchun Wang Feifei Li Pengfei | 2012 | Energy&Fuels2012，26，1： | 1 |
| 11 | Impact of injection conditions on flame characteristics from a parallel multi-jet burner显示文摘 | Mi Jianchun Li Pengfei Zheng Chuguang | 2011 | Energy2011，36，11： | 1 |
| 12 | Importance of initial momenttum rate and air-fuel premixing on moderate or intense low oxygen dilution (MILD) combustion in a recuperative furnace 显示文摘 | Mi Jianchun Li Pengfei Dally BB | 2009 | Energy&Fuels2009，23，11： | 1 |
| 13 | On two distinct Reynolds number regimes of a turbulent square jet显示文摘The effects of Reynolds number on both large-scale and small-scale turbulence properties are investigated in a square jet issuing from a square pipe.The detailed velocity fields were measured at five different exit Reynolds numbers of 8 × 10~3 < Re < 5 × 10~4.It is found that both large-scale properties(e.g.,rates of mean velocity decay and spread) and small-scale properties(e.g.,the dimensionless dissipation rate constant A = εL/〈u^2)^(3/2)) are dependent on Re for Re < 3 × 10~4 or Re_λ < 190,but virtually become Re-independent with increasing Re or Re_λ In addition,for Re_λ > 190,the value of A = εL/〈u^2)^(3/2) in the present square jet converges to 0.5,which is consistent with the observation in direct numerical simulations of box turbulence,but lower than that in circular jet,plate wake flows,and grid turbulence.The discrepancies in critical Reynolds number and A = εL/〈u^2〉^(3/2) among different turbulent flows most likely result from the flow type and initial conditions. | Minyi Xu Jianpeng Zhang Pengfei Li Jianchun Mi | 2015 | Theoretical & Applied Mechanics Letters2015，5，3： | 0 |
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