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INDONESIA
Jurnal Rekayasa Hijau
Published by Institut Teknologi Nasional Bandung
ISSN : 25794264     EISSN : 25501070     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Jurnal Rekayasa Hijau diterbitkan 3 kali dalam satu tahun. Berisi tulisan yang diangkat dari hasil penelitian dan kajian analisis di bidang ilmu pengetahuan, teknologi, desain dan kebijakan ramah lingkungan.
Arjuna Subject : -
Articles 14 Documents
 1   2 
Search results for , issue "Vol 3, No 2 (2019)" : 14 Documents clear
Peningkatan Kualitas Produk Crackers berdasarkan Metode Lean Six Sigma di PT M Intan Rahmatillah; Sundoro Sundoro; Lisye Fitria
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 3, No 2 (2019)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v3i2.3143

Abstract

ABSTRAKProduk crackers yang dihasilkan PT M belum memenuhi spesifikasi target yang sudah ditentukan perusahaan, dengan melihat indeks nilai Cpm. Saat ini terdapat masalah kualitas produk crackers di line produksi baru yang penggunaan mesinnya baru terpasang, yakni di Line 4. Penelitian ini dilakukan pada produk crackers yang dihasilkan di Line 4 dengan menggunakan metode Lean Six Sigma. Terdapat tiga pendekatan yang digunakan yaitu dengan metode DMAIC (Define, Measure, Analyze, Improve, Control), Seven Plus One Waste untuk menentukan pemborosan yang terjadi di masing-masing jenis defect, dan metode 5W-1H untuk menganalisis penyebab terjadinya pemborosan. Berdasarkan hasil identifikasi, jenis pemborosan yang terjadi adalah transportation, process, motion, defect and rework, dan waiting time. Usulan perbaikan yang diterapkan adalah melakukan pengecekan ketebalan setiap gauge roll 1-2 di sisi OS (Operating Site) dan sisi NOS (No. Operating Site). Setelah usulan dilakukan, terdapat peningkatan nilai indeks Cpm, seperti weight dough, weigh dough+topping salt, weight basecake, weight basecake+oil, diameter, salt content, dan color bottom.Kata kunci: lean, six sigma, DMAIC, seven plus one waste. ABSTRACTThe crackers produced by PT. M have not met the target specifications specified by the company, by looking at the Cpm value index. At present there are quality problems for crackers in the new production line that uses the new engine installed, namely on Line 4. This research was conducted on crackers products produced in Line 4 using the Lean Six Sigma method. There are three approaches used, namely by the DMAIC method (Define, Measure, Analyze, Improve, Control), Seven Plus One Waste to determine waste that occurs in each type of defect, and the 5W-1H method to analyze the causes of waste. Based on the results of identification, the type of waste that occurs is transportation, process, motion, defect and rework, and waiting time. The proposed improvement applied is to check the thickness of each gauge roll 1-2 on the OS (Operating Site) and NOS (No. Operating Site) side. After the proposal is made, there is an increase in the Cpm index value, such as weight dough, weigh dough + salt topping, weight basecake, basecake weight + oil, diameter, salt content, and color bottom.Keywords: lean, six sigma, DMAIC, seven plus one waste.
Pemilihan Jenis Sistem Pengelolaan Air Limbah Domestik di Kecamatan Bekasi Selatan Qurrotul Uyun; Eka Wardhani; Nico Halomoan
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 3, No 2 (2019)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v3i2.3148

Abstract

ABSTRAKKawasan prioritas pada Kecamatan Bekasi Selatan adalah kawasan permukiman sepanjang Kali Bekasi. Kurangnya sarana dan prasana dalam penyaluran air limbah domestik telah memberikan kontribusi pencemaran cukup tinggi kepada penurunan kualitas air Kali Bekasi. Dampak dari aktivitas sehari-hari masyarakat yang menjadi kebiasaan seperti buang air besar sembarang di sembarang tempat, tidak memiliki tangki septik sebagai tempat buang air besar, dan air bekas mandi dan cucian yang dibuang ke saluran drainase maupun secara langsung ke badan air juga menyebabkan buruknya tingkat sanitasi di Kecamatan Bekasi Selatan. Kondisi sanitasi Kecamatan Bekasi Selatan teridentifikasi beresiko tinggi berdasarkan Environmental Health Risk Assesment. Oleh Karena itu perlu dilakukan pembangunan Sistem Pengelolaan Air Limbah Domestik berdasarkan Peraturan Menteri Pekerjaan Umum dan Perumahan Rakyat Republik Indonesia Nomor 4 Tahun 2017 tentang Penyelenggaraan Sistem Pengelolaan Air Limbah Domestik pada Lampiran I. SPALD yang terpilih pada Kecamatan Bekasi Selatan yaitu Sistem Pengelolaan Air Limbah Domestik Setempat skala Komunal.Kata kunci: Kecamatan Bekasi Selatan, Tingkat Sanitasi, SPALD. ABSTRACTPriority area in South Bekasi District is a residential area along Bekasi River. The lack of facilities and infrastructures in the distribution of domestic wastewater has contributed to pollution which is high enough to decrease the quality of Bekasi River water. The impact of the daily activities of the community which becomes a habit such as defecating in any place, does not have a septic tank as a place to defecate, and used bathing water and laundry which are discharged into the drainage channel or directly to the body of water also causes poor levels sanitation in South Bekasi District. Sanitation conditions in South Bekasi District were identified as high risk based on Environmental Health Risk Assessment. Therefore it is necessary to develop a Domestic Wastewater Management System based on the Republic of Indonesia Minister of Public Works and Housing Regulation No. 4 concerning the Implementation of Domestic Wastewater Management Systems in Appendix I. Selected SPALD in South Bekasi District, namely Local Domestic Wastewater Management System Communal scale.Keywords: Sub-district, sanitation level, SPALD.
Karakteristik Mekanik Panel Honeycomb Sandwich Berbahan Komposit Fibreglass dengan Dimensi Cell-Pitch 40mm dan Cell-Height 30mm Marsono Marsono; Ali Ali; Nico Luwis
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 3, No 2 (2019)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v3i2.3144

Abstract

ABSTRAKRekayasa struktur honeycomb sandwich dalam pengembangan material banyak telah dimanfaatkan karena memiliki kekuatan struktur yang relatif tinggi dengan bobot material yang ringan. Material dengan rekayasa struktur honeycomb cocok digunakan pada mobil hemat energi, untuk meningkatkan efesiensi energi. Dalam penelitian ini dibuat panel honeycomb sandwich berbahan komposit serat kaca (fibreglass) dan matirks resin. Panel ini nantinya akan diterapkan pada rangka kendaraan hemat energi. Tiga panel honeycomb sandwich dibuat dengan variasi pada ketebalan dinding sel terutama ditujukan untuk mengetahui pengaruh ketebalan dinding sel terhadap kekuatan dan kekakuan panel honeycomb sandwich. Variasi ketebalan dinding sel didapatkan dari variasi penerapan jumlah lapisan fiberglass pada dinding sel honeycomb, yaitu 2 lapis, 4 lapis dan 6 lapis fibreglass. Hasil pengujian bending menunjukkan bahwa panel honeycomb sandwich dengan ketebalan dinding sel terbesar, yaitu dengan 6 lapisan fibreglass, memberikan kekuatan lentur terbesar yaitu 3,774 kg/mm2, dan kekakuan tertinggi, yaitu 21,48 kg/mm.Kata kunci: honeycomb sandwich, komposit fibreglass, kekuatan lentur, kekakuan.  ABSTRACTEngineering of honeycomb sandwich structure in the materials development has been highly utilized because of its high structural strength with lightweight material. Honeycomb structure material is suitable for use in energy-efficient cars, to increase energy efficiency. In this research, sandwich honeycomb panel were made from fibreglass composite with resin as matrices. This panel will be applied to the frame of energy-efficient vehicle. Three sandwich honeycomb panels were made with variations in cell wall thickness. These variations are primarily intended to determine the effect of cell wall thickness to the flexural strength and stiffness of the honeycomb sandwich panel. Variations in cell wall thickness were obtained from variations in the application of fibreglass layers on honeycomb cell walls, which are 2 layers, 4 layers and 6 layers of fibreglass. The bending test results show that the honeycomb sandwich panel with the largest cell wall thickness, which has 6 layers of fibreglass, provides the greatest flexural strength of 3.774 kg/mm2, and the highest stiffness of 21.48 kg/mm.Keywords: honeycomb sandwich,fibreglass composite , flexurall strength, stiffness.
Analisis Pengaruh Lajur Khusus Sepeda Motor Terhadap Kinerja Simpang Jalan PH.H.Mustafa – Jalan Cimuncang Bintang Anugrah Illahi; Andrean Maulana
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 3, No 2 (2019)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v3i2.3145

Abstract

ABSTRAKPenggunaan sepeda motor yang hampir 2 kali lipat lebih dari pengguna mobil, hal ini menyebabkan tingginya proporsi sepeda motor dalam arus lalu lintas. Diperlukan perlakuan khusus untuk mengantisipasi turunnya kinerja lalu lintas akibar para pengendara sepeda motor seperti disediakannya lajur khusus sepeda motor dan ruang henti khusus sepeda motor. Tujuan studi ini adalah menganalisis pengaruh lajur khusus sepeda motor yang menampung pergerakan sepeda motor di jalur major menggunakan model mikrosimulasi dengan software PTV Vissim. Hasil yang diperoleh dari penelitian ini menunjukan bahwa terdapat perubahan kinerja simpang yaitu panjang antrian dan tundaan lebih baik ketika menggunakan lajur khusus sepeda motor di jalur major.Kata kunci: lajur khusus sepeda motor, mikrosimulasi, kinerja simpang bersinyal  ABSTRACTThe use of motorbikes is almost 2 times more than car users, this causes a high proportion of motorcycles in the flow of traffic. Special treatment is needed to anticipate the decline in the traffic performance of motorbike riders such as the availability of motorbike lanes and motorbike stop rooms. The purpose of this study was to analyze the influence of the exclusive lanes of motorbikes that accommodate motorbike movements in the major lanes using the microsimulation model with the Vissim PTV software. The result obtained from this study indicate that there are changes in intersection performance, namely queue length and delay are better when using motorcycle lanes in the major lane.Keywords: exclusive lane, mikrosimulation, signalised intersection performance

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