Analisa Perbandingan Kualitas Kadar Air Dan Temperatur Pada Tipe Flatbed Dryer Konvensional Dan Reversible

Anugerah, Anugerah (2023) Analisa Perbandingan Kualitas Kadar Air Dan Temperatur Pada Tipe Flatbed Dryer Konvensional Dan Reversible. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Berdasarkan arah aliran, flatbed dryer dibedakan menjadi dua, yaitu flatbed-dryer conventional (FBDc) dengan tipe aliran udara pengeringan dari bawah ke atas atau aliran upward, kedua adalah flatbed-dryer reversible (FBDr) dengan tipe aliran upward selama 2/3 periode waku pengeringan, kemudian arah aliran dibalik dari atas ke bawah atau downward. Penelitian ini bertujuan untuk membandingakn kadar air yang dihasilkan oleh kedua jenis flatbed dryer tersebut dengan menggunakan analisa numerik CFD. Data visualisasi yang diambil antara lain, kontur kecepatan, temperatur, volume rendering, vector dan concentration. Hasil penelitian yang didapatkan diketahui bahwa, perforated plate dengan pola sudut antar lubang 180 derajat memiliki kontur yang paling optimal dan uniform dibanding yang lainnya, selain itu inlet velocity drying yang baik sebesar 8 m/s untuk aliran upward dan 0.7 m/s untuk aliran downward. Tipe flatbed dryer reversible terbukti lebih unggul dalam proses pengeringan dibandingkan dengan tipe conventional meskipun tidak terlalu signifikan. Dibuktikan dengan nilai selisih yang lebih kecil untuk ketebalan 15 cm, 25 cm, 35 cm dan 45 cm tipe reversible lebih unggul rata – rata 0.06 %, 0.07 %, 0.09 % dan 0.1 % dari tipe conventional secara berturut – turut.
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Based on the direction of airflow, flatbed dryers are classified into two types: conventional flatbed dryer (FBDc) with upward airflow, where the drying air flows from bottom to top, and reversible flatbed dryer (FBDr) with a 2/3 period of upward airflow followed by a reversal to downward airflow. This research aims to compare the moisture content produced by these two types of flatbed dryers using numerical analysis with Computational Fluid Dynamics (CFD). The visualized data includes velocity contours, temperature distribution, volume rendering, vectors, and concentration. The research findings reveal that the perforated plate with a 180-degree hole angle pattern exhibits the most optimal and uniform contour among other types. Additionally, a good inlet velocity of 8 m/s for upward airflow and 0.7 m/s for downward airflow is observed. The reversible flatbed dryer has been proven to be superior in the drying process compared to the conventional type, although the difference is not significant. This is demonstrated by smaller differences in moisture content for thicknesses of 15 cm, 25 cm, 35 cm, and 45 cm, with the reversible type showing an average advantage of 0.06%, 0.07%, 0.9%, and 0.1% respectively over the conventional type.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	FBDc, FBDr, Perforated Plate, CFD, Temperatur, Kadar Air, Temperature, Moisture Content
Subjects:	Q Science Q Science > QC Physics Q Science > QC Physics > QC320 Heat transfer
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Anugerah Anugerah
Date Deposited:	29 Jul 2023 05:01
Last Modified:	29 Jul 2023 05:01
URI:	http://repository.its.ac.id/id/eprint/99768

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