Thermophysical properties of the marine microalgae Nannochloropsis salina

Schneider, Nico; Fortin, Tara J.; Gerber, Mandy

doi:10.1016/j.fuproc.2016.06.039

Cited by 28 publications

(10 citation statements)

References 36 publications

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“…of Chlorella slurry is similar to that of Nannochloropsis salina [14]. Therefore, the density of 5, 10, and 20 wt% microalgae slurries are 1,009, 1,020, and 1,042 kg/m 3 , respectively.…”

mentioning

confidence: 67%

Process Design of Microalgae Slurry Pump

Li¹

2020

Tr Ren Energy

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Microalgae are a renewable source of dietary supplements, bioactive compounds, and potential energy. Once harvested, the microalgal medium is dewatered to form a slurry for downstream processing. This article outlines a process design for pumping the microalgae slurry. The pump requirements for delivering the Chlorella slurry with 5, 10 or 20 wt% solids at one tonne per hour (1,000 kg/h) and 10 bar were calculated. The 5 wt% microalgae slurry is a Newtonian fluid with a viscosity of 1.95 mPas. The 10 wt% and 20 wt% microalgae slurries are non-Newtonian fluids, whose viscosity depends on the shear rate (). The viscosity of 10 wt% and 20 wt% microalgae slurries is 1.504 ( = 50 s -1 )/1.155 ( = 100 s -1 ) and 1.844 ( = 50 s -1 )/1.219 ( = 100 s -1 ) mPas, respectively. The pump power requirements are mainly governed by the delivery pressure. The effect of the pipe length and the number of elbows is negligible. The effective power of the pump is calculated as 0.267-0.275 kW. To fulfill this duty, a ZGB type single-stage single-suction centrifugal slurry pump can be selected, which would provide enough shear rate to reduce the viscosity of the microalgae slurry and give required shaft power.

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“…of Chlorella slurry is similar to that of Nannochloropsis salina [14]. Therefore, the density of 5, 10, and 20 wt% microalgae slurries are 1,009, 1,020, and 1,042 kg/m 3 , respectively.…”

mentioning

confidence: 67%

Process Design of Microalgae Slurry Pump

Li¹

2020

Tr Ren Energy

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“…Following the example of and building upon lessons learned during previous work, [37] heat capacity measurements for the four lubricant samples employed the following procedure, executed over two distinct measurement periods. First, the instrument baseline, temperature, and heat flow were calibrated as previously described.…”

Section: Measurement Proceduresmentioning

confidence: 99%

Thermophysical properties of polyol ester lubricants

Bruno¹,

Fortin²,

Huber³

et al. 2019

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This report summarizes the results of work performed for the Naval Air Warfare Center Aircraft Division by the National Institute of Standards and Technology (NIST), Applied Chemicals and Materials Division on the properties of polyol ester lubricants under interagency agreement number N0042115IP00008. The work includes purity analysis and assessment, decomposition studies, experimental measurements on density, isobaric heat capacity, speed of sound, vapor pressure, viscosity, thermal conductivity, and distillation curve measurements. Models were developed for the thermodynamic properties, viscosity, and thermal conductivity that represent these properties to nearly within their experimental uncertainty for three pure polyol ester base fluids (pentaerythritol tetrapentanoate (POE5), pentaerythritol tetraheptanoate (POE7), pentaerythritol tetranonanoate (POE9), and a fully qualified lubricant meeting military specification MIL-PRF-23699.

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“…The heat capacity of algae was found to range between 3.625-4.125 kJ/kg/K [19]. It calculated that at the temperature of the fast pyrolysis reaction of 485 C, assuming heating from 25 C, the minimum input energy for the reaction would be ~ 1785 kJ/kg.…”

Section: 12: Algaementioning

confidence: 99%

Comparison of Fuel Yield of Biomaterials Between Fast Pyrolysis and Gasification

Hughes

Mcfall

Christiansen

et al. 2017

PAMR

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Pyrolysis is a viable method of extracting combustible fuels as gases or liquids from various, high carbon and hydrogen containing biomaterials. This Meta-study attempts to find the ideal combinations of processes for maximising biofuel output by comparing a range of biomaterials (cotton stalks, algae and peach scraps), put through the two primary methods of pyrolysis, through analysis of reactor type, Temperature, particle size and lower heating value achieved from biofuel output. It is proposed that the fast pyrolysis of Algae in a Fluidized bed reactor at a temperature of 550°C is the optimum combination of parameters for maximising biofuel output in terms of bio-oil yield and lower heating value (LHV) in kJ/kg.

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Thermophysical properties of the marine microalgae Nannochloropsis salina

Cited by 28 publications

References 36 publications

Process Design of Microalgae Slurry Pump

Process Design of Microalgae Slurry Pump

Thermophysical properties of polyol ester lubricants

Comparison of Fuel Yield of Biomaterials Between Fast Pyrolysis and Gasification

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