CD Skripsi

Perancangan Dan Pembuatan Sistem Refrigerasi Pada Sistem Pengering Beku Vakum Bengkuang Berkapasitas Maksimum 5 Kg

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ABSTRACT
The vacuum freeze-drying method is one of the best drying processes for food
preservation because it is able to remove moisture without compromising its
quality. One type of fruit that has a low selling value is yam because the usage of
yam is still limited and it has several weaknesses, including poor durability of
fresh yam which is ± 5 days, easiness to spoil because it contains 85% water
content and the low selling value so that during the harvest days, yam farmers
will suffer losses. This study aims to design a vacuum freeze dryer with a
refrigeration system that uses R134a as refrigerant and jicama as the object of
research with a maximum capacity of 5 kg yam. This research is capable in losing
water content up to 76,3% in 1 kg testing capacity with an end temperature of -
7,7oC. In testing capacity of 3 kg, the water content is lost up to 62,1% with an
end temperature of -7,3oC.In testing capacity of 5 kg, the water content is lost up
to 53,8% with an end temperature of -7,3oC. The condensor pipe length obtained
from the calculation results are 30,8 m, the length of the evaporator is 26,88 m
and the capillary tube is 6,85 m long.
Keywords: Vacuum Freeze-Drying, Yam, Refrigeration System

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 03. 121 (0042)

Penerbit

Pekanbaru : Universitas Riau –Fakultas Teknik – Teknik Mesin., 2021

Deskripsi Fisik

xii, 29 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 03. 121 (0042)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK MESIN

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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