التفاصيل البيبلوغرافية
| العنوان: |
RELIABILITY-BASED DESIGN OPTIMIZATION OF SCREW SHAFT FOR CONTINUOUS HIGHPRESSURE HYDROTHERMAL COLIQUEFACTION PROCESS. |
| العنوان البديل: |
PROJEKTOVANJE ZASNOVANA NA POUZDANOSTI OPTIMIZACIJA PUŽNE OSOVINE ZA KONTINUALNI PROCES HIDROTERMALNE KO-LIKVEFAKCIJE VISOKOG PRITISKA. |
| المؤلفون: |
VENKATACHALAM, CHITRA DEVI1 erchitrasuresh@gmail.com, BHUVANESHWARAN, PREMKUMAR1, SENGOTTIAN, MOTHIL2, RAVICHANDRAN, SATHISH RAAM2 |
| المصدر: |
Chemical Industry & Chemical Engineering Quarterly. Oct-Dec2024, Vol. 30 Issue 4, p335-348. 14p. |
| مصطلحات موضوعية: |
*BENDING stresses, *BENDING moment, *SHEARING force, *TAGUCHI methods, *SCREWS, *BATCH reactors |
| الملخص (بالإنجليزية): |
Hydrothermal co-liquefaction (HTCL) is the prominent process for producing bio-products with a higher conversion rate. It is performed at high temperatures and pressure in the presence of water. Earlier, it was mostly conducted in batch reactors, but it has major limitations including operating volume, back mixing, and tedious process for high productivity. With that, the present investigation is performed on designing the screw shaft for the high-pressure HTCL process. The dimensional factors including flight length, pitch, helix angle, and depth were considered to design the optimal screw shaft. Likewise, principal stresses, shear stress, bending stress, bending moment, and total deformation were regarded as inevitable response variables to analyze the internal strength of the shaft. In this regard, the Taguchi approach provides the L9 (34) orthogonal array as an experimental design. Then, the numerical results from the transient structural analysis were analyzed with the assistance of statistical methods such as Grey Relational Grade (GRG), Grey Fuzzy Reasoning Grade, Analysis of Variance (ANOVA), and Taguchi method to find the most influential dimensions for minimizing the response variable. Consequently, the results from both GRG and Taguchi optimization were compared, and selected the most optimum parameters. [ABSTRACT FROM AUTHOR] |
| Abstract (Bosnian): |
Hidrotermalna ko-likvefakcija (HTKL) je istaknuti proces za proizvodnju bioproizvoda sa vec'om brzinom konverzije. Izvodi se na visokim temperaturama i pritisku u prisustvu vode. Ranije se uglavnom sprovodio u šaržnim reaktorima, koji imaju velika ograničenja uključujuc'i radnu zapreminu, povratno mešanje i tegoban proces za visoku produktivnost. S tim u vezi, ovo istraživanje je sprovedeno s ciljem projektovanja pužne osovine za HTKL proces visokog pritiska. Dimenzionalni faktori, uključujuc'i dužinu kretanja, korak, ugao spirale i dubinu, uzeti su u obzir da bi se dizajnirala optimalna pužna osovina. Isto tako, glavni naponi, napon smicanja, napon savijanja, moment savijanja i ukupna deformacija smatrani su neizbežnim odzivnim promenljivima za analizu unutrašnje čvrstoc'e osovine. U tom smislu, Taguči L9 (34) ortogonalni niz je korišc'en kao eksperimentalni plan. Zatim su numerički rezultati analize prelazne strukture analizirani uz pomoc' statističkih metoda kako bi se pronašle najuticajnije dimenzije za minimiziranje odzivnih promenljivih. Shodno tome, upoređeni su rezultati različitih metoda i izabrani su najoptimalniji parametri. [ABSTRACT FROM AUTHOR] |
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