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Pemanfaatan Metode Pengeringan Dehumidifikasi Untuk Membantu Proses Produksi Bubuk Jahe Kelompok PKK Dauh Peken Tabanan Sudirman Sudirman; I Dewa Made Cipta Santosa; I Nengah Ardita; I Made Sudana; Made Ery Arsana
Bhakti Persada Jurnal Aplikasi IPTEKS Vol. 7 No. 2 (2021): Bhakti Persada Jurnal Aplikasi IPTEKS
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (734.769 KB) | DOI: 10.31940/bp.v7i2.102-110

Abstract

Makalah ini membahas tentang metode perubahan  pengeringan Jahe yang konvensional  yang dilakukan  oleh kelompok PKK Tunggalsari Dauh Peken Tabanan, dengan metode pengeringan sistem dehumidifikasi. Metedo pengeringan jahe  konvensional membutuhkan waktu 3 hari sampai 11 hari tergantung cuaca. Saat proses produksi juga memanfaatkan panas tinggi dari kompor. Hal tersebut mengakibatkan kandungan gingerolnya rendah akibat proses pengeringan pada suhu tinggi. Oleh karena itu ditawarkan pengeringan metode dehumidifikasi, yaitua proses   pengeringan   jahe dengan suhu  rendah  agar  kandungan  (n)gingerol,  zingerone  dan (n) shogaol tidak rusak selama proses pengeringan.  Prinsip alat tersebut adalah dengan cara mengambil atau menguapkan kandungan air pada jahe segar, kemudian uap air tersubut dikondensaikan di evaporator dan dibuang keluar mesin sudah berwujud air.  Pengujian mesin pengering dehumidifikasi dilakukan dengan 3 kali proses. Menghasilkan pengurangan bobot jahe sebesar 80 persen dengan  kadar air 10,8 persen.  Semua proses pengeringan dilakukan selama  7 jam.
The Optimization of Shell and Tube Condenser Cooling System on a 5-Liter Distillation Apparatus Using a Water Jacket with Thermoelectric I Made Sudana; I Wayan Marlon Managi
Journal of Comprehensive Science Vol. 5 No. 3 (2026): Journal of Comprehensive Science
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jcs.v5i3.4107

Abstract

Background: In small-scale alcohol distillation, the efficiency of the condenser is critical for product quality and yield. A common problem is the rise in condenser temperature during operation, which diminishes vapor condensation efficiency and results in low alcohol concentration in the distillate. Objective: This research aims to optimize the performance of a shell-and-tube condenser in a 5-liter distillation apparatus by integrating a water jacket system equipped with a thermoelectric (Peltier) cooler. Methods: An experimental approach was employed, comparing the apparatus's performance before and after modification. Key parameters measured included inlet vapor temperature, inlet and outlet cooling water temperatures of the condenser, process duration, and the alcohol concentration of sequential distillate fractions. Results: The findings demonstrate that the thermoelectric water jacket significantly reduced and stabilized the condenser's outlet water temperature throughout the operation. The time to obtain the first distillate decreased from 23 to 16 minutes. The alcohol concentration of the initial fraction increased from 40% to 50%, and the total processing time for the same 5-liter batch was reduced from 55 to 35 minutes. Conclusion: The integration of a thermoelectric water jacket substantially enhances heat transfer and alcohol vapor condensation efficiency. This modification proves to be an effective strategy for improving the thermal performance and product quality of small-scale distillation equipment.