No abstract

Konsumsi kopi yang menjadi gaya hidup masyarakat sekarang menunjukan tren peningkatan. Biji kopi basah harus digiling sebelum proses pengeringan. Penulis melakukan penelitian berupa perancangan dan pembuatan pengupas kulit kopi basah dengan kapasitas 120 kg/jam menggunakan motor bensin 5,5 hp untuk UMKM. Metode penelitian yang digunakan pada penelitan ini dimulai dari studi literatur, perancangan dan perhitungan, proses pembuatan alat diakhiri dengan pengujian alat. Desain gambar teknik dilakukan dengan modeling pada software solidworks. Rancangan alat pengupas kulit kopi terdiri dari rangka bawah yang ditopang roda troli, motor bensin dengan daya 5,5 hp sebagai penggerak, transmisi daya dengan menggunakan pulley, belt, rantai dan sprocket, crusher sebagai penggilas biji kopi basah, dan yang terakhir adalah roller pemisah. Dari perhitungan didapatkan desain diameter poros pada crusher dan roller pemisah 31,08 mm sedangkan poros yang terbangun adalah 35 mm dengan menggunakan baja karbon S30C. Sedangkan perhitungan belt sebagai transmisi daya didapatkan jenis sabuk V belt Tipe A dengan ukuran W 12 mm dan K0 8 mm. Hasil pengujian alat menggunakan 0,25 kg biji kopi basah dibutuhkan waktu selama 3 detik, dengan demikian kapasitas sesuai dengan hasil pengujian adalah 300 kg/jam. Hasil tersebut menunjukan target terpenuhi, namun agar membatasi performance alat pengupas kopi pada kondisi optimalnya, maka peneliti menetapkan kapasitas alat pengupas kopi pada kinerja 120 kg/jam.Kata kunci : rancang bangun, mesin kopi, performance

No abstract

In this modern era, the use of plastic is very much in the community, this alone makes the accumulation of plastic waste. And the nature of plastic waste has properties that are difficult to decompose and even need hundreds of years, this is also what makes the accumulation of plastic waste. Of the menabahnya amount of plastic such as plastic materials that can only be used and thrown for example are mineral water bottles, plastic bags or plastic food wrappers and This type of sterofoam waste is the most widely used and most piles of garbage collection.In my analysis process the plastic that will be processed using the pyrolysis method is rubbish whose category is plastic waste made from vinyl chloride, polyethylene, acrylic, silicone, urethane , which we can find most of its use as food packaging or household plastic appliances. Comparison of the first plastic garbage type of type 1: Polyethylene Terephthalate (PET or PETE or Polyester) and type 2: High Density Polyethylene (HDPE) , with the amount of plastic waste ratio of 1: 1. Comparison to two types of 1: Polyethylene Terephthalate (PET or PETE or Polyester) and type 4: Low Density Polyethylene (LDPE) , with a ratio of 1: 1 plastic waste. Comparison of all three types of 1 : Polyethylene Terephthalate (PET or PETE or Polyester) and type 6: Polystyrene (PS) , the amount of plastic waste ratio of 1: 1.Results from this study obtain data Data obtained from PET & HDPE experiments obtained oil and heat obtained from experiments 1 to 5. On The first experiment oil obtained was 0.15 Liters and Heat for evaporation of material was 2829.78 kJ. On The Second experiment oils obtained were 0.74 Liters and Heat for the evaporation of material 2829.78 kJ . On The third experiment oil obtained was 0.74 liters and heat for the evaporation of material 2829.78 kJ. On The Fourth experiment oils obtained were 0.74 Liters and Heat for the evaporation of material 2829.78 kJ . On The Fifth experiment oils obtained were 0.74 Liters and Heat for evaporation of the material 2829.78 Kj .Data obtained from PET & LDPE experiments obtained oil and heat obtained from experiments 1 to 5. On The First experiment oil obtained was 0.47 Liters and Heat for evaporation of 4119.3 kJ material . On The Second experiment oils obtained were 0.51 Liters and Heat for evaporation of 4334.22 kJ material . On The third experiment oil obtained was 0.36 liters and heat for evaporation of material 4226.76 kJ . On The Fourth experiment oils obtained were 0.44 Liters and Heat for evaporation of 5014.8 kJ material . On The Fifth experiment oils obtained were 0.5 Liters and Heat for the evaporation of ingredients 4477.5 Kj.