Designing a high-throughput viscous heater to process feces: heater geometry

2015 ◽  
Vol 5 (3) ◽  
pp. 521-524 ◽  
Author(s):  
Jagdeep T. Podichetty ◽  
Gary L. Foutch ◽  
A. H. Johannes ◽  
Jim Smay ◽  
Md. Waliul Islam
Keyword(s):  
High Throughput ◽  
Process Design ◽  
Viscous Heating ◽  
Additional Heat ◽  
Design And Optimization ◽  
Scale Unit ◽  
Reactor Length ◽  
Heater Length ◽  
Gap Spacing ◽  
Heating Technology

Viscous heating technology can destroy disease-causing microorganisms with no additional heat input. A laboratory-scale unit was constructed and tested with a simulant, and viscous heating achieved temperatures as high as 190°C. This study discusses additional variables – length and spacing – that are important to process design and optimization. The viscosity (μ) was described as a function of shear rate (γ̇); μ = 140 Pa s for t = 0 s and μ = 32*(γ̇)−0.6 Pa s for t > 0 s. The advantages of viscous heating to sanitize fecal mass are presented. The results show temperature gradient is more sensitive to changes in gap spacing than reactor length. For high throughput, the viscous heater length must be increased to provide fluid sufficient residence time to achieve the desired effluent temperature.

scholarly journals Process design and optimization Of Two-Stage Axial Micro Turbine Air motor

2021 ◽  
Vol 1043 (3) ◽  
pp. 032037
Author(s):  
J Liu ◽  
Z P Guo ◽  
Q Yuan ◽  
X X He ◽  
S j Miao
Keyword(s):  
Process Design ◽  
Two Stage ◽  
Design And Optimization ◽  
Air Motor ◽  
Micro Turbine

Comments on “Equipartition of Forces:  A New Principle for Process Design and Optimization”

2000 ◽  
Vol 39 (11) ◽  
pp. 4431-4433 ◽  
Author(s):  
Tore Haug-Warberg
Keyword(s):  
Process Design ◽  
Design And Optimization

High-throughput fermentation process design with single-use stirred-tank bioreactors

2008 ◽  
Vol 136 ◽  
pp. S279-S280
Author(s):  
Dirk Weuster-Botz
Keyword(s):  
High Throughput ◽  
Process Design ◽  
Fermentation Process ◽  
Stirred Tank ◽  
Single Use

scholarly journals Optimization of Pd Membrane Reactor for Direct Oxidation of Aromatic Compounds

2011 ◽  
Vol 11 (1) ◽  
pp. 8
Author(s):  
Milad Rasouli ◽  
Sahar Chitsazan ◽  
Mohammad Hossein Sayyar ◽  
Nakisa Yaghobi ◽  
Babak Bozorgi
Keyword(s):  
Fluid Dynamic ◽  
Active Oxygen Species ◽  
Tubular Reactor ◽  
Direct Oxidation ◽  
Design And Optimization ◽  
Reactor Length ◽  
Length Increase ◽  
Principal Reaction ◽  
Complex Chemical Reactions ◽  
Geometrical Factors

Computational fluid dynamic has already become a widely used and indispensable design and optimization tool in many technical areas. In the present work, the CFD simulations have been coupled with complex chemical reactions to model a membrane tubular reactor which is used to produce phenol from benzene in the vapor phase. Hydrogen dissociates on the palladium layer and reacts with oxygen to give active oxygen species, which attack benzene to produce phenol. In principal, reaction occurs in the surface of palladium and conversion of benzene is increased by changing the length and diameter of the Pd coated PSS tubes. The reactor length and diameter are two geometrical factors which are concerned in the present study. Although increasing the reactor length increase the conversion of benzene to phenol but the concentration of the phenol start to decrease. Based on the data provided by the experiments, a mathematical model has been constructed to conduct a simulation which leads us to an optimum design of a new tubular membrane micro-reactor.

Process design and optimization of state-of-the-art carbon capture technologies

2013 ◽  
Vol 33 (3) ◽  
pp. 993-999 ◽  
Author(s):  
Zhijun Zhou ◽  
Zhuo You ◽  
Zhihua Wang ◽  
Xin Hu ◽  
Junhu Zhou ◽  
...  
Keyword(s):  
Process Design ◽  
Carbon Capture ◽  
State Of The Art ◽  
Design And Optimization

A genetic algorithmic framework for process design and optimization

1991 ◽  
Vol 15 (4) ◽  
pp. 217-228 ◽  
Author(s):  
I.P. Androulakis ◽  
V. Venkatasubramanian
Keyword(s):  
Process Design ◽  
Design And Optimization ◽  
Algorithmic Framework

Sustainable and economic analysis of marine macroalgae based chemicals production - Process design and optimization

2020 ◽  
Vol 276 ◽  
pp. 122792
Author(s):  
Andrés I. Casoni ◽  
Fernando D. Ramos ◽  
Vanina Estrada ◽  
M. Soledad Diaz
Keyword(s):  
Economic Analysis ◽  
Production Process ◽  
Process Design ◽  
Marine Macroalgae ◽  
Design And Optimization

scholarly journals Genetically encoded biosensors for lignocellulose valorization

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Guadalupe Alvarez-Gonzalez ◽  
Neil Dixon
Keyword(s):  
High Throughput ◽  
Critical Factor ◽  
Modern Society ◽  
Low Carbon ◽  
Design And Optimization ◽  
Oil Reserves ◽  
Cell Factories ◽  
Major Bottleneck ◽  
Fuels And Chemicals ◽  
Pathway Regulation

Abstract Modern society is hugely dependent on finite oil reserves for the supply of fuels and chemicals. Moving our dependence away from these unsustainable oil-based feedstocks to renewable ones is, therefore, a critical factor towards the development of a low carbon bioeconomy. Lignin derived from biomass feedstocks offers great potential as a renewable source of aromatic compounds if methods for its effective valorization can be developed. Synthetic biology and metabolic engineering offer the potential to synergistically enable the development of cell factories with novel biosynthetic routes to valuable chemicals from these sustainable sources. Pathway design and optimization is, however, a major bottleneck due to the lack of high-throughput methods capable of screening large libraries of genetic variants and the metabolic burden associated with bioproduction. Genetically encoded biosensors can provide a solution by transducing the target metabolite concentration into detectable signals to provide high-throughput phenotypic read-outs and allow dynamic pathway regulation. The development and application of biosensors in the discovery and engineering of efficient biocatalytic processes for the degradation, conversion, and valorization of lignin are paving the way towards a sustainable and economically viable biorefinery.

Manufacturing Process Design and Optimization by R.F.Rhyder

2000 ◽  
Vol 15 (4) ◽  
pp. 624-626
Author(s):  
Bernie Bettig
Keyword(s):  
Process Design ◽  
Manufacturing Process ◽  
Design And Optimization
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