Residence time distributions of gas flowing through rotating drum bioreactors
| العنوان: | Residence time distributions of gas flowing through rotating drum bioreactors |
|---|---|
| المؤلفون: | David A. Mitchell, Matthew T. Hardin, Tony Howes |
| المصدر: | ResearcherID |
| بيانات النشر: | Wiley, 2001. |
| سنة النشر: | 2001 |
| مصطلحات موضوعية: | Dietary Fiber, Time Factors, Plug flow, Superficial velocity, Nitrogen, Chemistry, Air, Continuous stirred-tank reactor, Bioengineering, Heat transfer coefficient, Mechanics, Models, Theoretical, Residence time (fluid dynamics), Residence time distribution, Applied Microbiology and Biotechnology, Oxygen, Bioreactors, Gases, Rheology, Dispersion (chemistry), Plug flow reactor model, Biotechnology |
| الوصف: | Residence time distribution studies of gas through a rotating drum bioreactor for solid-state fermentation were performed using carbon monoxide as a tracer gas. The exit concentration as a function of time differed considerably from profiles expected for plug flow, plug flow with axial dispersion, and continuous stirred tank reactor (CSTR) models. The data were then fitted by least-squares analysis to mathematical models describing a central plug flow region surrounded by either one dead region (a three-parameter model) or two dead regions (a five-parameter model). Model parameters were the dispersion coefficient in the central plug flow region, the volumes of the dead regions, and the exchange rates between the different regions. The superficial velocity of the gas through the reactor has a large effect on parameter values. Increased superficial velocity tends to decrease dead region volumes, interregion transfer rates, and axial dispersion. The significant deviation from CSTR, plug flow, and plug flow with axial dispersion of the residence time distribution of gas within small-scale reactors can lead to underestimation of the calculation of mass and heat transfer coefficients and hence has implications for reactor design and scale-up. |
| تدمد: | 1097-0290 0006-3592 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::663d19884f29f6e8a1ea33b654ff16feTest https://doi.org/10.1002/bit.1104Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....663d19884f29f6e8a1ea33b654ff16fe |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10970290 00063592 |
|---|