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Influence of different oil feed rate on bituminous coal ignition in a full-scale tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Xiang ZHANG, Zhichao CHEN

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 406-412 doi: 10.1007/s11708-013-0266-6

Abstract: To reduce oil consumption during firing-up and partial-load operation, a tiny-oil ignition burner hasoil flow rates on bituminous coal combustion as well as flow rates without coal feed was analyzed.second combustion chambers, these distributions remained almost unchanged under a constant coal feed rateHowever on the burner centerline, distributions increased slightly with increasing flow rate.At the same coal feed rate of 4 t/h, burner resistances are 480, 600, and 740 Pa for oil flow rates of

Keywords： ignition     coal     burner     boiler     oil flow rate    

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Experimental study for the stratified to slug flow regime transition mechanism of gas-oil two-phase flow

LIU Yiping, YANG Weilin, WANG Jing

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 152-157 doi: 10.1007/s11708-008-0012-7

Abstract: contains less empiricism than the commonly used Taitel-Dukler model, and the ideal model for stratified flowfor the gas-liquid flow in horizontal pipes are presented.of slugging occurs, were predicted, and theoretical analysis was conducted on the stratified to slug flowA theoretical model was applied to an experiment about air-oil two-phase flow in a 50 mm horizontal pipeThe results show that this approach gives a reasonable prediction over the whole range of flow rates,

Keywords： two-phase     Superficial     reasonable prediction     one-dimensional     gas-liquid    

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Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 359-368 doi: 10.1007/s11465-011-0222-2

Abstract:

The flow, bearing, and carrying capacity of the cycloidal hydrostatic oil cavity in hydrostatic turntableHowever, the increase in inlet speed, depth, and inlet radius of the oil cavity causes the vortex effectto increase and the stability of oil cavity to reduce.With the increase in the oil film thickness, the carrying capacity of the oil cavity diminishes.With the increase in turntable speed, the location and size of the vortex scope in the oil cavity flow

Keywords： hydrostatic oil cavity     flow state     oil cavity pressure     stability     vortex    

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Short-term prediction of influent flow rate and ammonia concentration in municipal wastewater treatment

Shuai MA, Siyu ZENG, Xin DONG, Jining CHEN, Gustaf OLSSON

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 128-136 doi: 10.1007/s11783-013-0598-9

Abstract: method is presented in this paper in order to estimate and predict the periodicity of the influent flowrate trend and rain events.The results show that 1) for both of the two plants, the periodicity affects the flow rate and NH concentrationsin different cycles (especially cycles longer than 1 day); 2) when the flow rate and NH concentrationsrate less obvious in intensive rainy periods.

Keywords： influent load prediction     wavelet de-noising     power spectrum density     autoregressive model     time-frequency analysis     wastewater treatment    

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Developing trend of oil & gas pipeline flow assurance technology

Li Li,Miao Qing,Tong Wenqiang,Song Fei,Xu Haihong,Liang Jinghua

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 47-51

Abstract: text-align: justify;">Through systematical research and complex analysis of how the main safety facts affect flowcharacteristics of oil & gas pipeline, oil & gas pipeline flow assurance is a series of technologyThe history, current research and future trend of oil & gas pipeline flow assurance are discussedand application, oil & gas pipeline flow improver research, flow characteristics of batch transportationof oil & product oil.

Keywords： flow assurance     crude oil rheology     pipeline flow improver     batch transportation    

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Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 747-773 doi: 10.1007/s11708-022-0830-z

Abstract: There is nothing illogical in the concept that hydrates are easily formed in oil and gas pipelines owingto the low-temperature and high-pressure environment, although requiring the cooperation of flow rateIn general, flow rate was implicated in the regulation of blockage risk through its characteristic toaffect sedimentation tendencies and flow patterns.Reasons of diversity of hydrate plugging mechanism in oil-based system ought to be studied in-depth by

Keywords： hydrate     flow rate     water content     mechanism of pipeline blockage     rich liquid phase system    

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Experimental investigation on oil-gas separator of air-conditioning systems

Dianbo XIN,Shuliang HUANG,Song YIN,Yuping DENG,Wenqiang ZHANG

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 411-416 doi: 10.1007/s11708-017-0447-9

Abstract: The oil-return system plays an important role in the variable refrigerant flow (VRF) systems becauseThe oil-gas separator is the most essential component of the oil-return system, and the separation efficiencyTherefore, in this paper, a test rig was built to measure the oil discharge ratio of the compressor andthe separation efficiency of the oil-gas separator.sound velocity was changed with the mass ratio of oil to refrigerant.

Keywords： variable refrigerant flow system     oil-gas separator     separation efficiency    

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Application of subsea multiphase flow meter in the development of deepwater oil and gas fields

Liu Taiyuan,Guo Hong and Zheng Lijun

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 69-74

Abstract: justify;">The remarkable development of science and technology speeds up the development of the deeper oilRecent years there are more and more subsea multiphase flow meters installed and being in operation.The principles of multiphase flow measurement are introduced and other factors relevant to the measurementThe feasibility of cases is also presented and it is helpful for the selection of subsea multiphase flow

Keywords： deepwater     subsea multiphase flow meter     flow assurance     reservoir optimization     field development    

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Elliptical lobe shape gerotor pump design to minimize wear

Mohammad Reza KARAMOOZ RAVARI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 429-434 doi: 10.1007/s11465-011-0247-6

Abstract: for elliptical lobe shape rotors profile and curvature of them have been derived and then Specific flowand wear rate proportional factor (WRPF) have been formulated.shape factor is changed for each value of number of outer rotor teeth in a feasible range and wear rateAlso in order to have better comparison specific flow has been presented.and show the significant improvement in wear of the rotors with negligible changes in the specific flow

Keywords： gerotor pump     elliptical lobe shape pump     wear rate proportional factor (WRPF)     specific flow    

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Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0943-5

Abstract: However, turbidity and algal contents fluctuated temporally in the direction of river flow.Statistical analysis showed that turbidity was strongly positively correlated with algal contents for flowrate<0.1 m·s , whereas it was strongly positively correlated with both algal contents and TOC for flowrate>0.1 m·s ., and was influenced by flow rate as well.

Keywords： Reclaimed water     Urban river     Turbidity     Algae     Flow rate    

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Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 105-113 doi: 10.1007/s11708-018-0536-4

Abstract: This present work is aimed to examine the effect of mass flow rate on distillate output and performanceIn the active solar still, with the optimum water depth, different flow rates of 0.5, 1 and 1.5 L/minIt is observed that both the mass flow rate and the variation of internal heat transfer coefficientswith the mass flow rate have a significant effect on the yield and performance of the still.The experimental results show that the combination of 1.5 L/min mass flow rate and an optimum water depth

Keywords： distillation efficiency     solar still     heat transfer coefficient     water depth     optimum and mass flow rate    

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Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater

Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 160-172 doi: 10.1007/s11708-014-0321-y

Abstract: thermal efficiency, the values of Nusselt have been compared with those of smooth duct under similar flow

Keywords： Nusselt number     flow rate     heat transfer     heat transfer coefficient     thermal efficiency     forced convection    

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A Modification of Evacuation Time Computational Model andSimulation Comparison Analyses With Olympic Stadium

Zhang Qingsong,Liu Mao,Zhao Guomin

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 64-69

Abstract: EDTM uses crowd flow theory and discrete computational methods to identify various width of egress thatavailable to the occupants for movement,  which is more accurate and practicable because the crowd flowrate is variable, while the crowd flow rate as the function of crowd density based on the empirical

Keywords： evacuation time     crowd flow rate     egress     simulation     Olympic stadium    

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Effects of process parameters on surface roughness in abrasive waterjet cutting of aluminium

M. CHITHIRAI PON SELVAN, N. MOHANA SUNDARA RAJU, H. K. SACHIDANANDA

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 439-444 doi: 10.1007/s11465-012-0337-0

Abstract: Experiments were conducted in varying water pressure, nozzle traverse speed, abrasive mass flow rate

Keywords： abrasive waterjet     aluminium     garnet     water pressure     mass flow rate     traverse speed     standoff distance    

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The combined effects of biomass and temperature on maximum specific ammonia oxidation rate in domestic

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1411-9

Abstract:

• Actual SAORs was determined using MLVSS and temperature.

Keywords： Specific ammonia oxidation rate     Sequencing batch reactor     Biomass     Temperature coefficient     Model simulation    

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Title Author Date Type Operation

Influence of different oil feed rate on bituminous coal ignition in a full-scale tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Xiang ZHANG, Zhichao CHEN

Journal Article

Experimental study for the stratified to slug flow regime transition mechanism of gas-oil two-phase flow

LIU Yiping, YANG Weilin, WANG Jing

Journal Article

Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Journal Article

Short-term prediction of influent flow rate and ammonia concentration in municipal wastewater treatment

Shuai MA, Siyu ZENG, Xin DONG, Jining CHEN, Gustaf OLSSON

Journal Article

Developing trend of oil & gas pipeline flow assurance technology

Li Li,Miao Qing,Tong Wenqiang,Song Fei,Xu Haihong,Liang Jinghua

Journal Article

Mechanism and control factors of hydrate plugging in multiphase liquid-rich pipeline flow systems: a

Shuwei ZHANG, Liyan SHANG, Zhen PAN, Li ZHOU, You GUO

Journal Article

Experimental investigation on oil-gas separator of air-conditioning systems

Dianbo XIN,Shuliang HUANG,Song YIN,Yuping DENG,Wenqiang ZHANG

Journal Article

Application of subsea multiphase flow meter in the development of deepwater oil and gas fields

Liu Taiyuan,Guo Hong and Zheng Lijun

Journal Article

Elliptical lobe shape gerotor pump design to minimize wear

Mohammad Reza KARAMOOZ RAVARI

Journal Article

Factors influencing water quality indices in a typical urban river originated with reclaimed water

Jiao Zhang, Zhen Wei, Haifeng Jia, Xia Huang

Journal Article

Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Journal Article

Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater

Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI

Journal Article

A Modification of Evacuation Time Computational Model andSimulation Comparison Analyses With Olympic Stadium

Zhang Qingsong,Liu Mao,Zhao Guomin

Journal Article

Effects of process parameters on surface roughness in abrasive waterjet cutting of aluminium

M. CHITHIRAI PON SELVAN, N. MOHANA SUNDARA RAJU, H. K. SACHIDANANDA

Journal Article

The combined effects of biomass and temperature on maximum specific ammonia oxidation rate in domestic

Journal Article