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All Journal ASEAN Journal of Systems Engineering Turbo : Jurnal Program Studi Teknik Mesin Journal on Education Mathvision : Jurnal Matematika JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Mechonversio: Mechanical Engineering Journal Innovative: Journal Of Social Science Research Suara Teknik : Jurnal Ilmiah
Indah Noor Dwi Kusuma Dewi
Universitas Panca Marga
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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CHARACTERISTICS OF PYROLYSIS OIL BATCH POLYETHYLENE AND POLYSTHYRENE PLASTIC WASTE AT VARIOUS TEMPERATURES Indah Noor Dwi Kusuma Dewi; Agus Prasetya; Supranto -
ASEAN Journal of Systems Engineering Vol 3, No 2 (2015): ASEAN Journal of Systems Engineering
Publisher : Master in Systems Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.888 KB)

Abstract

Efforts are being carried out in order to utilize polyethylene (PE) and polystyrene (PS) plastic waste by converting them into fuel or oil. One technology that can be used is pyrolysis. This study aims to (1) determine the quantity and the characteristics of oil from the results of pyrolysis polyethylene (PE) and polystyrene (PS) plastic waste at various temperatures which include characteristics of physics (specific gravity, heating value, flash point, pour point, and kinematic viscosity) and chemical characteristics (composition compounds in oil), (2) determine the optimal conditions of process pyrolysis related to the quality and quantity of oil by pyrolysis, and (3) determine the potential treatment of PE and PS plastic waste by pyrolysis method.The materials used in this study were the type of polyethylene (plastic bags) and polystyrene/styrofoam (for fruits or vegetables) plastic waste. The selected temperature variations are T = 400oC, 450oC, and 500oC. Pyrolysis oil was weighed and measured its volume to obtain v/wo and yield.The results showed that the quantity of pyrolysis oil from polyethylene (PE) plastic waste at temperatures of 400, 450, and 500oC based on v/wo (ml/g) respectively were 0.3429 ml/g; 0.5129 ml/g; and 0.199 ml/g while the results of polystyrene (PS) plastic waste at temperatures of 400, 450, and 500oC respectively were 0.89 ml/g; 0.905 ml/g; and 0.915 ml/g. The results of pyrolysis oil based on yield of polyethylene (PE) plastic waste at temperatures of 400, 450, and 500oC respectively were 33.33 wt%; 38.61 wt%; and 15.55 wt% while polystyrene (PS) plastic waste at temperatures of 400, 450, and 500oC respectively were 80.94 wt%; 79.79 wt%; and 80.14 wt%. While the characteristics shown by the results of pyrolysis oil from PE plastic with a temperature of 400oC were closer to kerosene while at temperatures of 450 and 500oC were closer to the characteristics of diesel fuel. As for pyrolysis oil results of PS plastic with temperatures of 400, 450, and 500oC were closer to the characteristics of gasoline. Optimal conditions of pyrolysis oil related to the quantity of pyrolysis of PE plastic at a temperature of 450oC was obtained when the highest of v/wo and yield respectively were 0.5129 ml/g and 38.16 wt%, while for the pyrolysis of PS did not have any optimal conditions. For, oil produced was relatively constant despite the increasing temperatures. Based on technical analysis, handling PE and PS plastic waste using pyrolysis methods provides benefits to society making it feasible to do.
Pengaruh modifikasi lift camshaft dengan bahan bakar pertalite dan pertamax terhadap kinerja mesin 110 cc Wahyu Nur Achmadin; Indah Noor Dwi Kusuma Dewi; Djoko Wahyudi
TURBO [Tulisan Riset Berbasis Online] Vol 10, No 2 (2021): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1716

Abstract

Modification of the camshaft lift with pertalite and pertamax fuel has been carried out. This study aims to determine the effect on engine performance, namely a change in lift of 1 mm is able to maximize performance to be better than the standard. In this study using a 110cc motorcycle engine with pertalite and pertamax fuels to show a comparison of modifications to the standard. The results obtained are the modified 1mm lift camshaft with Pertamax fuel produces maximum power and torque compared to the standard camshaft, with values of 13.33 hp and 13.38 Nm, respectively. The highest increase in power and torque on pertalite fuel is found at 7000 rpm which can increase performance by 7.4% and 7.2%, respectively, from the standard camshaft. Meanwhile, the highest increase in power on Pertamax fuel was obtained at 5500 rpm rotation with a value of 12.1% while the highest torque increase in Pertamax fuel was obtained at 8000 rpm rotation with a value of 11.9%.
Peningkatan Jumlah Produksi Kerajinan Anyaman Tas Dengan Alat Pemotong Dan Pengukur Tali Pengepak Indah Noor Dwi Kusuma Dewi; Ira Aprilia; Linda Kurnia Supraptiningsih
JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) VOL. 2 NOMOR 1 MARET 2018 JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat)
Publisher : Lembaga Publikasi Ilmiah dan Penerbitan (LPIP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (516.412 KB) | DOI: 10.30595/jppm.v2i1.1791

Abstract

ABSTRAK        Tujuan dari kegiatan ini adalah: 1) Meningkatkan kuantitas dan kualitas produk kerajinan anyaman tas dari limbah tali pengepak di Kabupaten Jember 2) Meningkatkan kemampuan SDM pelaku usaha dan ibu-ibu di lingkungan sekitar usaha. Metode yang digunakan adalah diskusi dan pengumpulan referensi untuk mendesain dan membuat alat pemotong dan pengukur tali plastik, pemberian pelatihan manajemen usaha dan sistem pengelolaan keuangan dan pemberian pelatihan menganyam. Luaran yang dihasilkan adalah alat pemotong dan pengukur tali pengepak. Alat ini terdiri dari 3 komponen, yaitu pisau pemotong, roller dan meja. Pisau pemotong terdiri dari 2 mata pisau yang dihubungkan pada statis geser sehingga dapat digunakan untuk menentukan panjang tali yang diinginkan. Adapun panjang mata pisau adalah 40 cm dengan panjang statis 130 cm. Roller terbuat dari besi silinder dengan ukuran diameter dalam 15 cm dan panjang 26 cm. Meja dengan tinggi 40 cm sebagai alas penyangga alat potong. Hasil potongan tali adalah 10 potongan tali dengan ukuran yang seragam dalam sekali potong. Alat ini telah meningkatkan kuantitas produk yang dihasilkan hingga mencapai 3 kali lipat. Selain itu, juga terjadi peningkatan kualitas dari produk anyaman tas yaitu tas menjadi lebih rapi karena ukuran tali yang seragam. Hasil luaran yang lainnya adalah adanya peningkatan kemampuan SDM pelaku usaha dan ibu-ibu di lingkungan sekitar usaha yang dengan sebelumnya hanya memiliki keterampilan mengayam tali pengepak menjadi mampu menganyam kerajinan anyamanbaru dengan bahan yang lain seperti menganyam tempat buah dari pitrit dan adanya tambahan jenis /model baru dari bentuk tas anyaman yang sudah ada.Kata Kunci: Tali Pengepak, Alat Pemotong dan Pengukur, Tas Anyaman ABSTRACT        The direction of this program are: 1) Increasing the quantity and quality of handicraft bag products with matter of waste plastic packing strap in Jember, 2) Improving human resource capacity of agents and mothers in business environment. The method used are discussion and accumulation the reference to design and cause the cutting device and plastic strap gauge, a business management training and financial management system for agents and weave training. The result in this program is cutting device and plastic packing strap gauge. The device are consists of 3 components, are cutter knife, roller, and buffer. The cutting device consists of 2 knifes which are connected to static work so it can be used to determine the desired length of the strap. The length of the knifes is 40 cm with a static length is 130 cm. Roller is made of iron form of cylinder with diameter size of inner is 15 cm and length is 26 cm. Buffer 40 cm of height as a cutting device pedestal. Result of piece a plastic packing strap is can 10 pieces of strings with a uniform size in one to cut. The device has increased the quantity of products produced up to 3 times. In addition, there is also an increase in the quality of woven bag products that becomes more tidy because uniform size of strap.The other outcome is to improvement of human resource capacity the business agents and the mothers in the environment around the business who previously only have the abilityto weave the plastic packing straps to be able to weave new woven crafts with other materials such as weed the fruit of the pitrit and the addition of new types or models of the form of woven bags that have been there before.Keywords: Plastic Packing Strap, Cutting Device And Gauge, Handicraft Bag 
PERBANDINGAN KENAIKAN DAYA BAHAN BAKAR CAMPURAN TERHADAP KINERJA MESIN STANDAR 125 CC Indah Noor Dwi Kusuma Dewi; Dani Hari Tunggal Prasetiyo; Wahyu Nur Achmadin
Mechonversio: Mechanical Engineering Journal Vol 5, No 2 (2022): Desember 2022
Publisher : Univervitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/mmej.v5i2.2066

Abstract

Pengujian bahan bakar pertamax turbo dengan campuran bioetanol pada mesin 125 cc telah dilakukan. Penelitian ini bertujuan untuk mengetahui perbandingan antara bahan bakar pertamax turbo dengan bahan bakar bioetanol-pertamax turbo. Metode yang digunakan adalah menganalisa titik tertinggi kenaikan daya pada putaran. Penelitian ini memberikan hasil bahwa daya terbesar pada masing-masing bahan bakar yang diuji adalah pada 7000 rpm, yaitu 7,4 hp pada bahan bakar pertamax turbo dan 8,3 hp pada bahan bakar campuran bioetanol-pertamax turbo. Perbandingan tersebut dapat terjadi dikarenakan terjadinya proses pembakaran pada bagian motor, sehingga menyebabkan kandungan nilai oktan bahan bakar campuran bioetanol dan pertamax mampu mempertahankan suhu pada mesin lebih baik dibandingkan bahan bakar pertamax turbo
A Survey on the Instrumental and Integrative Motivation among Students in Learning English Utami Ratna Swari; Siti Masluha; Indah Noor Dwi Kusuma Dewi; Wahyu Nur Achmadin
Innovative: Journal Of Social Science Research Vol. 3 No. 2 (2023): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v3i2.825

Abstract

Penelitian ini bertujuan untuk mengetahui motivasi instrumental dan motivasi integratif pada pembelajar Bahasa Inggris sebagai bahasa asing pada Universitas Panca Marga Probolinggo. Pengumpulan data dilakukan melalui kuesioner yang terdiri dari delapan (8) pernyataan yang diadaptasi dari Gardners (1972). Skala Likert lima poin digunakan untuk mengukur jawaban yang diberikan oleh para peserta. Ada lima puluh lima (55) mahasiswa berpartisipasi dalam menjawab survei. Pernyataan yang diberikan kepada para peserta mencerminkan motivasi mereka dalam belajar bahasa Inggris. Temuan menunjukkan bahwa mahasiswa memiliki tingkat motivasi instrumental yang lebih tinggi daripada motivasi integratif. Motivasi instrumental mengungguli motivasi integratif dengan selisih skor rata-rata 0,63 poin.
Perbandingan Sifat Kenaikan Kinerja Bahan Bakar Pertalite dan Pertamax terhadap Mesin Standar 110cc Wahyu Nur Achmadin; Djoko Wahyudi; Indah Noor Dwi Kusuma Dewi
Suara Teknik : Jurnal Ilmiah Vol 13, No 1 (2022): Suara Teknik: Jurnal Ilmiah
Publisher : Fakultas Teknik UM Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29406/stek.v13i1.3954

Abstract

Pengujian bahan bakar pertalite dan pertamax terhadap mesin standar 110 cc telah dilakukan. Penelitian ini bertujuan untuk mengetahui optimalisasi kinerja sifat bahan bakar yang digunakan pada kendaraan bermotor. Dalam penelitian ini menggunakan uji dynotest yang kemudian kinerja daya dalam perolehan data dari uji ini ditelaah dengan metode analisa grafik. Analisa grafik berfungsi sebagai pembaca dari sifat/kelakuan suatu variabel. Uji daya tiap bahan bakar dibandingkan pada saat tenaga kinerja mesin berada pada 500 rpm dan 1000 rpm. Penelitian ini memberikan hasil bahwa dengan menggunakan metode analisa grafik pada saat 500 rpm dan 1000 rpm, bahan bakar pertamax memiliki kenaikan kinerja daya lebih besar dibandingkan dengan bahan bakar pertalite.Pertalite and Pertamax fuel tests on a standard 110 cc engine have been carried out. This study aims to determine the optimization of the performance properties of the fuel used in motor vehicles. In this study using the dynotest test, then the power performance in data acquisition from this test was analyzed using the graphical analysis method. Graph analysis serves as a reader of the nature/behavior of a variable. The power test of each fuel is compared when the engine performance power is at 500 rpm and 1000 rpm. This study gives the results that by using the graphical analysis method at 500 rpm and 1000 rpm, Pertamax fuel has an increase in power performance of 0.4 hp at a ratio of every 500 rpm and an increase in power performance of 0.3 hp at a ratio of every 1000 rpm.
PENENTUAN NILAI TERKECIL ROOT MEAN SQUARRED ERROR (RMSE) METODE HOLT-WINTERS EXPONENTIAL SMOOTHING PADA EKSPOR KOPI TUJUAN JERMAN Wahyu Nur Achmadin; Dwi Agustin Retnowardani; Dewi Mashitasari; Fita Fatimah; Indah Noor Dwi Kusuma Dewi
MathVisioN Vol 6 No 1 (2024): Maret 2024
Publisher : Prodi Matematika FMIPA Unirow Tuban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55719/mv.v6i1.1102

Abstract

Penelitian ini mengkaji dinamika ekspor kopi dari Indonesia ke Jerman dengan menerapkan metode Holt-Winters Exponential Smoothing untuk proses peramalan. Fokus penelitian hanya akan dibatasi pada penentuan nilai Root Mean Squared Error (RMSE) terkecil. Tujuan utama penelitian adalah memberikan pemahaman yang mendalam mengenai tren, pola musiman, dan kinerja keseluruhan ekspor kopi dari tahun 2000 hingga 2022. Penelitian uji efektivitas berbagai kombinasi parameter (α, β, dan ɣ) menggunakan data yang diperoleh dari Badan Pusat Statistik Indonesia yang kemudian diimplementasikan pada metode Holt-Winters untuk mendapatkan prediksi yang akurat. Penelitian mempertimbangkan berbagai faktor dengan menyesuaikan nilai-nilai parameter ini dalam kisaran 0,1 hingga 0,9 untuk meminimalkan nilai Root Mean Squared Error (RMSE). Melalui visualisasi grafis dan analisis statistik, penelitian mengidentifikasi kombinasi parameter optimal yang menghasilkan RMSE terendah, yang menunjukkan prediksi yang paling akurat dalam peramalan.
Efektivitas Pembelajaran Kooperatif Tipe Team Games Tournament Berbantuan Crossword Puzzle terhadap Hasil Belajar Siswa pada Pembelajaran IPA di SDN Triwung Lor 2 Ary Analisa Rahma; Utami Ratna Swari; Hermin Arista; Indah Noor Dwi Kusuma Dewi; Wahyu Nur Achmadin
Journal on Education Vol 7 No 1 (2024): Journal on Education: Volume 7 Nomor 1 Tahun 2024
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v7i1.7691

Abstract

This study aims to determine the effectiveness of cooperative learning type Team Games Tournament assisted by crossword puzzle on students’ learning outcomes in science learning at SDN Triwung Lor 2. The use of learning models through educational games is designed so students are able to improve their questioning, writing, discussion, and collaboration skills. This study used a quantitative approach with a pre-experimental research method and a one group pretest-posttest research design, the research subjects amounted to 10 students determined by purposive sampling. The research data analysis was carried out by paired samples t-test on the SPSS 26 program, the results of the study can be concluded that the cooperative learning model Team Games Tournament assisted by crossword puzzle is quite effective to be used to improve student learning outcomes in science learning at SDN Triwung Lor 2.
Co-Authors Agus Prasetya Ahlan Ahlan Ary Analisa Rahma Dani Hari Tunggal Prasetiyo Dewi Mashitasari Djoko Wahyudi Djoko Wahyudi Dwi Agustin Retnowardani Eva Kurnia Yulyawan Fita Fatimah Hermin Arista Indro Wicaksono Ira Aprilia Linda Kurnia Supraptiningsih Siti Masluha Supranto - Utami Ratna Swari Utami Ratna Swari Wahyu Nur Achmadin