PENGUJIAN MESIN PENCACAH HIJAUAN PAKAN (CHOPPER) TIPE VERTIKAL WONOSARI I

Ihwan Fadli, 0914071034 (2014) PENGUJIAN MESIN PENCACAH HIJAUAN PAKAN (CHOPPER) TIPE VERTIKAL WONOSARI I. Fakultas Pertanian, Universitas Lampung.

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1-ABSTRACT.pdf

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2-ABSTRAK.pdf

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3-COVER LUAR.pdf

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4-COVER DALAM.pdf

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5-LEMBAR PERSETUJUAN.pdf

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6-LEMBAR PENGESAHAN.pdf

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7-LEMBAR PERNYATAAN.pdf

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8-MOTO.pdf

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9-PERSEMBAHAN.pdf

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10-RIWAYAT HIDUP.pdf

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11-SANWACANA.pdf

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12-DAFTAR ISI.pdf

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13-DAFTAR TABEL.pdf

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14-DAFTAR GAMBAR.pdf

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15-BAB I.pdf

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16-BAB II.pdf

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17-BAB III.pdf

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19-BAB V.pdf

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20-DAFTAR PUSTAKA.pdf

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Abstrak

Pengujian mesin memiliki tujuan untuk mengevaluasi produk-produk hasil rancangan apakah memenuhi syarat teknis dan spesifikasi produk dengan standar yang telah ditetapkan. Mesin pencacah hijauan Wonosari I merupakan mesin hasil rancangan bengkel pertanian tepatnya di Desa Wonosari, Kecamatan Pekalongan, Kabupaten Lampung Timur yang belum pernah dilakukan pengujian sehingga belum diketahui informasi mengenai kinerja dari mesin tersebut. Penelitian ini bertujuan untuk menguji kinerja mesin pencacah hijauan pakan (chopper) tipe vertikal Wonosari I dengan pengamatan meliputi keseragaman cacahan, kapasitas kerja mesin, denyut nadi operator dan konsumsi bahan bakar. Metode penelitian yang digunakan adalah Rancangan Acak Lengap (RAL) dengan dua faktorial. Faktor pertama adalah tiga kecepatan mesin dengan taraf yaitu 800, 1400 dan 1800 rpm, sedangkan faktor kedua adalah tingkat kesegaran pakan yaitu segar, layu sehari dan dua hari. Tiap perlakuan diulang tiga kali sehingga total ada 27 perlakuan. Parameter yang diuji secara statistik adalah keseragaman cacahan ukuran 2 – 5 cm dan kemudian dilanjutan dengan uji nilai F, BNT 5% dan 1%. Hasil penelitian menunjukkan bahwa cacahan ukuran 2 – 5 cm paling banyak didapat pada kecepatan 1400 rpm untuk batang jagung segar dan layu sehari yaitu dengan persentase masing-masing 32,19% dan 39,69%, sedangkan untuk batang jagung layu dua hari menggunakan kecepatan 1800 rpm yaitu dengan persentase sebesar 30,12%. Hasil perhitungan analisis sidik ragam menunjukkan bahwa keseragaman cacahan ukuran 2 – 5 cm berbeda. Pengukuran denyut nadi pada kecepatan 800, 1400 dan 1800 rpm yaitu sebesar 50,02; 71,48; dan 76,54 kali/menit. Kapasitas kerja mesin pada kecepatan 1400 rpm adalah 834 kg/jam dengan konsumsi bahan bakar 2,17 liter/jam. Kata kunci: cacahan, kapasitas, konsumsi bahan bakar, mesin pencacah, uji kinerja Abstract Bahasa Inggris Testing machine has the purpose to evaluate the products designed by whether qualified technically and product specifically with the established standards. Forage chopper vertical Wonosari type I is a machine designed and produced by workshop local farm in Wonosari village, subdistrict of Pekalongan, district of Lampung Timur that has never test so that no available information on the performance of the machine. This research aimed at testing performance of forage chopper vertical Wonosari type I by observation covering uniformity, capacity of machine work, pulse, and consumption fuel. The method used was a Completely Randomized Design (CRD) with two factorial. The first factor is the three engine speeds with levels (800, 1400 and 1800 rpm), while the second factor is combined of feed freshness (fresh, withered a day and withered two days). Every treatment were repeated three times so the total there are 27 treatment. Parameter that was statistically tested is uniformity of 2 – 5 cm chopped size then continued by F test, LSD 5% and 1%. The results show that the chopped size 2 – 5 cm most be obtained at the speed 1400 rpm for fresh corn stalks and withered a day with the 32.19% and 39.69% percentage, while the withered corn stalks two days using the speed 1800 rpm with 30.12% percentage. The results of analysis of variance calculation shows that the uniformity of chopped size 2 – 5 cm was different. The pulse measurement at speeds of 800, 1400 and 1800 rpm, were 50.02; 71.48; and 76.54 times/min. The work capacity of the machine at speed of 1400 rpm was 834 kg/hour with the 2.17 liters/hour consumption fuel. Keywords: capacity, chopper, fuel consumption, the performance test, uniformity

Tipe Karya Ilmiah: Skripsi
Subyek: A General Works = Karya Karya Umum
Program Studi: Fakultas Pertanian > Prodi Teknik Pertanian
Depositing User: 2659601 . Digilib
Date Deposited: 22 Jan 2015 06:50
Last Modified: 22 Jan 2015 06:50
URI: http://digilib.unila.ac.id/id/eprint/6404

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