2020
Developing staggered woven mesh aerator with three variable-micropore layers in recycling water pipeline to enhance CO2 conversion for improving Arthrospira growth
Cheng J, Liu S, Guo W, Song Y, Kumar S, Kubar AA, Su Y, Li Y. Developing staggered woven mesh aerator with three variable-micropore layers in recycling water pipeline to enhance CO2 conversion for improving Arthrospira growth. The Science Of The Total Environment 2020, 760: 143941. PMID: 33341634, DOI: 10.1016/j.scitotenv.2020.143941.Peer-Reviewed Original ResearchConceptsWater pipelinesArthrospira growthHigh-speed cameraLarge-scale raceway pondsCarbonization efficiencyInput COConversion efficiencySmall bubblesAeratorCO2 conversionUniform microporesRaceway pondsBubble picturesImage processing softwareUtilization efficiencyOptimized structureProcessing softwareEfficiencyLayerCOPipelineBiomass measurementsMicroporesShearBubblesDevelopment of a single helical baffle to increase CO2 gas and microalgal solution mixing and Chlorella PY-ZU1 biomass yield
Ali Kubar A, Cheng J, Guo W, Kumar S, Song Y. Development of a single helical baffle to increase CO2 gas and microalgal solution mixing and Chlorella PY-ZU1 biomass yield. Bioresource Technology 2020, 307: 123253. PMID: 32244074, DOI: 10.1016/j.biortech.2020.123253.Peer-Reviewed Original ResearchA novel porous nickel-foam filled CO2 absorptive photobioreactor system to promote CO2 conversion by microalgal biomass
Guo W, Cheng J, Liu S, Feng L, Su Y, Li Y. A novel porous nickel-foam filled CO2 absorptive photobioreactor system to promote CO2 conversion by microalgal biomass. The Science Of The Total Environment 2020, 713: 136593. PMID: 31955094, DOI: 10.1016/j.scitotenv.2020.136593.Peer-Reviewed Original ResearchConceptsConversion efficiencyPore diameterAbsorption reactorPhotobioreactor systemLow conversion efficiencyMicroalgal biomassGas outflow rateVolume fractionShort residence timeNumerical simulationsCO2 conversionRaceway pondsBiomass growth rateReactorGasResidence timeEfficiencyOutflow rateReaction rateCODiameterMicroalgal cellsRelative height
2019
Three-dimensional numerical simulation of light penetration in an optimized flow field composed of microalgae cells, carbon dioxide bubbles and culture medium
Guo W, Cheng J, Song Y, Liu S, Ali KA, Kumar S. Three-dimensional numerical simulation of light penetration in an optimized flow field composed of microalgae cells, carbon dioxide bubbles and culture medium. Bioresource Technology 2019, 292: 121979. PMID: 31445241, DOI: 10.1016/j.biortech.2019.121979.Peer-Reviewed Original ResearchConceptsOptimized flow fieldFlow fieldNumerical simulationsThree-dimensional numerical simulationsComputational fluid dynamicsBubble volume fractionMicroalgae cellsCarbon dioxide bubblesBubble diameterConic bafflesFluid dynamicsSolution depthVolume fractionRaceway pondsMicroalgae cell concentrationIncident irradiationBiomass growth rateMicroalgae growthBubblesLight penetrationSimulationsPenetrationBafflesSelf-rotary propellers with clockwise/counterclockwise blades create spiral flow fields to improve mass transfer and promote microalgae growth
Kumar S, Cheng J, Guo W, Ali KA, Song Y. Self-rotary propellers with clockwise/counterclockwise blades create spiral flow fields to improve mass transfer and promote microalgae growth. Bioresource Technology 2019, 286: 121384. PMID: 31048263, DOI: 10.1016/j.biortech.2019.121384.Peer-Reviewed Original ResearchConceptsSpiral flow fieldFlow fieldGas-liquid mixingRaceway pondsMass transfer coefficientWall shear stressTransfer coefficientPropeller diameterOpen raceway pondsMass transferSpiral flowPropellerShear stressRotational flowBladesExternal powerA. platensis biomassMicroalgae growthFlowMicroalgal growthHelix pitchDiameterMixingPitchField
2018
Developing microporous fibrous-diaphragm aerator to decrease bubble generation diameter for improving microalgal growth with CO2 fixation in a raceway pond
Cheng J, Song Y, Guo W, Miao Y, Chen S, Zhou J. Developing microporous fibrous-diaphragm aerator to decrease bubble generation diameter for improving microalgal growth with CO2 fixation in a raceway pond. Bioresource Technology 2018, 276: 28-34. PMID: 30605836, DOI: 10.1016/j.biortech.2018.12.090.Peer-Reviewed Original ResearchEnhancing vorticity magnitude of turbulent flow to promote photochemical efficiency and trichome helix pitch of Arthrospira platensis in a raceway pond with conic baffles
Cheng J, Guo W, Song Y, Kumar S, Ameer Ali K, Zhou J. Enhancing vorticity magnitude of turbulent flow to promote photochemical efficiency and trichome helix pitch of Arthrospira platensis in a raceway pond with conic baffles. Bioresource Technology 2018, 269: 1-8. PMID: 30144753, DOI: 10.1016/j.biortech.2018.08.058.Peer-Reviewed Original ResearchConceptsConic bafflesVorticity magnitudeTurbulent flow fieldTurbulent kinetic energyComputational fluid dynamicsRaceway pondsTurbulent flowFlow fieldDoppler velocimeterFluid dynamicsVortex mechanismBiomass productivityKinetic energyHigh biomass productivityHelix pitchBafflesEnhanced biomass productivityArthrospira platensisPitchVelocimeterEfficiencyMicroscopePromoting helix pitch and trichome length to improve biomass harvesting efficiency and carbon dioxide fixation rate by Spirulina sp. in 660 m2 raceway ponds under purified carbon dioxide from a coal chemical flue gas
Cheng J, Guo W, Ameer Ali K, Ye Q, Jin G, Qiao Z. Promoting helix pitch and trichome length to improve biomass harvesting efficiency and carbon dioxide fixation rate by Spirulina sp. in 660 m2 raceway ponds under purified carbon dioxide from a coal chemical flue gas. Bioresource Technology 2018, 261: 76-85. PMID: 29654997, DOI: 10.1016/j.biortech.2018.04.017.Peer-Reviewed Original Research
2017
Alternatively permutated conic baffles generate vortex flow field to improve microalgal productivity in a raceway pond
Cheng J, Guo W, Cai C, Ye Q, Zhou J. Alternatively permutated conic baffles generate vortex flow field to improve microalgal productivity in a raceway pond. Bioresource Technology 2017, 249: 212-218. PMID: 29045924, DOI: 10.1016/j.biortech.2017.10.031.Peer-Reviewed Original ResearchConceptsConic bafflesVorticity magnitudeRaceway pondsVortex flowBubble generation timeBubble residence timeVortex flow fieldMass transfer coefficientTransfer coefficientFlow fieldClockwise vortexMass transferVertical cross sectionBafflesHorizontal cross sectionPerpendicular velocityPure COResidence timeMicroalgal productivityFlowRelative spacingVelocityBiomass productivityMain streamCross sections