Authors:
I. Nyoman Suamir
;
I. Made Rasta
;
I. Dewa Made Susila
and
Sudirman
Affiliation:
Mechanical Engineering Department, Politeknik Negeri Bali, Campus Street, Kuta Selatan, Badung, Bali 80364 Indonesia
Keyword(s):
Arrack Bali Distillation Machine, Refrigeration, Distiller, Product Quality Consistency.
Abstract:
Balinese arrack, which is commonly called Arrack Bali, is a traditionally distilled alcoholic drink made from fermented sap of coconut flowers. Arrack Bali is a traditional Balinese drink and is also in great demand by guests from abroad. Those encourage arrack farmers to be more motivated in producing arrack even though they still use traditional production methods. To be able to provide a good economic impact for arrack farmers, it is very necessary to have a distillation machine based on appropriate technology with better, cleaner and consistent production process. This paper presents a local genuine based distillation machine specifically designed for Arrack Bali production. The machine incorporates novelties which include a refrigeration distiller, preheating heat exchanger and smart controller for both boiler and distiller. The machines can perform reliably with several production characteristics. Production test results showed several variants of Arrack Bali can be produced co
nsistently which could be grouped into four grades: Grade-Super, Grade- 1, Grade-2 and Grade-3 with alcohol content above 40%, 30%, 20%, 10% respectively. These variants are resulted from production characteristics at boiler temperature 87-93 C̊, distiller temperature 15-27 C̊ and corresponding production time 1.5, 2.5, 3.5, and 4.5 hours respectively.
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