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All Journal International Journal of Electrical and Computer Engineering Jurnal Ilmiah Dinamika Teknik International Journal of Renewable Energy Development Jurnal Bahan Alam Terbarukan Rekayasa Mesin Journal Industrial Servicess Energy : Jurnal Ilmiah Ilmu-Ilmu Teknik Jurnal Pengabdian kepada Masyarakat Scientific Journal of Informatics Proceeding Maritime Business Management Conference
Ummatin, Kuntum Khoiro
Universitas Internasional Semen Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Rancang Bangun Solar Dryer untuk Meningkatkan Kualitas Refuse Derived Fuels (RDF) sebagai Bahan Bakar Alternatif di Kiln Burner Industri Semen Maulida Okta Arifianti, Qurrotin Ayunina; Abidin, Muhammad Rizal; Nugrahani, Elita Fidiya; Ummatin, Kuntum Khoiro
Jurnal Rekayasa Mesin Vol 9, No 3 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2008.712 KB) | DOI: 10.21776/ub.jrm.2018.009.03.8

Abstract

To utilize the municipal solid waste (MSW), PT Semen Indonesia has a program to convert waste into three useful products. One of the product is named Refuse Derived Fuel (RDF). The RDF has claimed that it had a caloric value about 5178 kcal/kg. However, currently, RDF could not be used for the combustion process in the cement kiln since RDF has higher moisture content and lower caloric value. In this research, a solar dryer with greenhouse type is designed to reduce the moisture content. The performance is tested using two variations and compared to the conventional method. The variations are a solar dryer with one fan and with no fan. The general results show that variation with one fan has the highest drying rate among all. There is a significant reduction of moisture content after drying process using a solar dryer. The moisture content could be reduced to 16.25 % and 17 % using one fan and no fan, respectively. Furthermore, variation with 1 fan has higher solar dryer efficiency than that of one fan.
Quality Function Deployment (QFD) and TRIZ in Briquette Cookstove Design and Simulation Faria, Niswatun; Ummatin, Kuntum Khoiro; Junianto, Mochammad Annas; Budiharso, Tedy Eko
Jurnal Rekayasa Mesin Vol 12, No 2 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.02.12

Abstract

Poor cookstove design can harm the user's health and environment. This research aims to obtain an efficient cookstove design, environmentally friendly and operated easily. The cookstove design process using a combination of  QFD and TRIZ. QFD able to capture customer needs through a questionnaire and interview. The data collected then processed to build a House of Quality (HoQ), one of the tools in QFD. QFD results in the design parameter of the briquette cookstove, which is incorporated in the concept design. The TRIZ method is utilized to understand the problem that might occur in the concept design and focus on solving the root causes. The next step is a detailed design where the dimensions, combustion chamber capacity, and supporting features are explained. The combination of QFD and TRIZ result in a briquette cookstove concept design which is easy to clean and operate. The combustion system is Top-lit Up-Draft (TLUD). The burning chamber has two air inlets, namely primary and secondary. The primary air inlet supplies the air from the bottom of the burning chamber, partially burns the briquette, and produces flue gas. The secondary air inlet is in the shape of an oval to supply air in the burning chamber's upper part to burn the flue gas completely. A complete combustion process will increase combustion efficiency and reduce emissions. A computational simulation shows the velocity distribution inside the burning chamber.
Substitution Garden and Polyethylene Terephthalate (PET) Plastic Waste as Refused Derived Fuel (RDF) Zahra, Nurulbaiti Listyendah; Septiariva, Iva Yenis; Sarwono, Ariyanti; Qonitan, Fatimah Dinan; Sari, Mega Mutiara; Gaina, Pratiwi Claudia; Ummatin, Kuntum Khoiro; Arifianti, Qurrotin Ayunina Maulida Okta; Faria, Niswatun; Lim, Jun-Wei; Suhardono, Sapta; Suryawan, I Wayan Koko
International Journal of Renewable Energy Development Vol 11, No 2 (2022): May 2022
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2022.44328

Abstract

The generation of polyethylene terephthalate (PET) plastic and garden waste must be recycled to support the circular economy. An alternative way to reduce the plastics waste is to reduce this waste by converting it into energy such as Refused Derived Fuel (RDF) as an alternative for processing waste. Substitution of plastic and garden waste is an opportunity to be analyzed. Hence, This study aimed to investigate the potential for converting material substitution from PET and garden waste into RDF. The RDF characterized test method was carried out by proximate, water content, ash content, and analysis. At the same time, the calorific value. was tested by bomb calorimetry. Substitution of the mixture of plastic and garden waste affects each parameter of RDF pellet quality including water, ash, and caloric value (sig.< 0.05). The increase of plastic waste in pellets consistently increases the calorific value of RDF from 18.94 until 25.04 MJ/kg. The RDF pellet water and ash content also invariably affect the rate of increase in the calorific value of RDF in the multilinearity model (sig.<0.05; R2 is 0.935). The thermal stability of the pellets occurred at a temperature of 5000C decomposition of hemicellulose, cellulose, and lignin in mixed garden waste with plastic in RDF pellets. The decrease in the decomposition of PET into terephthalic acid monomer from the thermal stability of raw materials and waste PET plastic pellets occurs at a temperature of 4500ËšC. This potential finding can be used as a basis for consideration in regions or countries that have the generation of garden waste and plastic, especially the type of PET to be used as an environmentally friendly fuel.
ANALISA MANFAAT BIAYA PROYEK PEMBAHARUAN UNIT PENGOLAHAN SAMPAH KOTA GRESIK DENGAN TEKNOLOGI HYDROTHERMAL Kuntum Khoiro Ummatin; Dewi Annisa Yakin; Qurrotin Ayunina MOA
Journal Industrial Servicess Vol 3, No 1c (2017): Oktober 2017
Publisher : Fakultas Teknik Jurusan Teknik Industri Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jiss.v3i1c.2091

Abstract

Proyek pembaharuan unit pengolahan sampah kota Gresik perlu dilakukan untuk menjaga keberlanjutan pengolahan sampah kota menjadi bahan bakar alternatif pengganti semen, Refused Derived Fuels (RDF). Beberapa permasalahan yang ditemukan dalam sistem pengolahan sampah saat ini, diantaranya produksi RDF hanya mencapai 1% dari target, kadar air melebihi standar, dan kalori yang kurang dari standar. Terdapat alternatif pembaharuan yakni dengan teknologi hydrothermal. Dalam penelitian ini dilakukan analisa manfaat dan biaya yang timbul akibat adanya proyek pembaharuan tersebut, sehingga dapat diketahui kelayakan investasinya. Metode yang digunakan adalah metode perbandingan manfaat dan biaya, Benefit Cost Ratio (BCR). Metode ini digunakan untuk menaksir kemanfaatan proyek, dan membandingkan dengan biaya yang timbul selama masa investasi proyek., yaitu selama 20 tahun umur mesin pengolah sampah hydrothermal dan tingkat suku bunga 12%. Dari hasil analisa diperoleh nilai manfaat total senilai Rp. 4. 968.800.000 per tahun. Sedangkan biaya yang muncul adalah biaya investasi awal senilai Rp. 13.245.898.932 dan biaya operasional & maintenance senilai Rp. 3.068.117.397. Nilai BCR yang dihasilkan dari perbandingan manfaat dengan biaya adalah 1,07. Nilai BCR yang lebih dari 1 menunjukkan proyek dapat dilaksanakan dan layak. Analisa sensitivitas menunjukkan nilai tersebut masih layak hingga tingkat suku bunga kurang dari 14%. 
ANALISA PERILAKU RUMAH TANGGA DALAM MENGOLAH SAMPAH SEBAGAI UPAYA MENDUKUNG ENERGI ALTERNATIF REFUSE DERIVED FUEL (RDF) Kuntum Khoiro Ummatin; Novantio Bagas Putra Pratama
Jurnal Ilmiah Dinamika Teknik DINAMIKA TEKNIK VOL. 14 NO. 1 JANUARI 2021
Publisher : Jurnal Ilmiah Dinamika Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Garbage is a problem in various cities in Indonesia. One of the waste processing is converting the waste into RDF (Refused Derived Fuel) which can be used as an alternative fuel to replace coal in the cement industry, because it has a high calorific value. In an effort to support waste management into RDF, it is necessary to improve starting from the waste sorting system starting from the household level. This study aims to identify and analyze several factors that influence household behavior in processing waste in Tuban Regency. This area was chosen as the object of research because there are 2 large cement industries that can use RDF as fuel. The survey was conducted on 110 respondents, and the results obtained with multiple linear regression tests, the largest coefficient value is the waste processing facility variable at 0.232, followed by the waste management knowledge variable at 0.197, the household awareness variable in supporting waste management at 0.082, and the government role variable at 0.082. 0.221
Investigation the Relationship between Performance Efficiency of Gas Steam Turbine Power Plant Components and the Inspection Time Qurrotin A'yunina MOA; Elita Fidiya Nugrahani; Kuntum Khoiro Ummatin
Energy - Jurnal Ilmiah Ilmu-Ilmu Teknik Vol 7 No 2 (2017): Jurnal ENERGY Vol. 7 No. 2 Edisi Nopember 2017
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.147 KB)

Abstract

Dengan kerjaoperasional komponen yang tinggi, beberapa inspeksi harus dilakukan di industri pembangkit listrik. PT XYZ sebagai pembangkit listrik turbin gas melakukan inspeksi yang terdiri dari inspeksi pembakaran (CI), inspeksi turbin (TI), dan inspeksi utama (MI). Periode dari satu inspeksi ke inspeksi lainnya sekitar 8000 jam operasi. Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara waktu inspeksi yang ditentukan oleh perusahaan manufaktur pembangkit listrik dan efisiensi itu sendiri. Berdasarkan hasil tersebut, inspeksi utama memiliki dampak terbesar pada reduksi laju panas suatu unit. Inspeksi utama tersebut juga menyebabkan nilai efisiensi kinerja tertinggi di unit A. Namun, jika inspeksi digabungkan dengan beberapa retrofit, efisiensi kinerja dapat meningkat menjadi nilai tertinggi, seperti pada inspeksi turbin di unit B.Kata Kunci :inspeksi, efisiensi, performansi
Prediction of recovery energy from ultimate analysis of waste generation in Depok City, Indonesia Mega Muitiara Sari; Iva Yenis Septiariva; Eva Nur Fauziah; Kuntum Khoiro Ummatin; Qurrotin Ayunina Maulida Okta Arifianti; Niswatun Faria; Jun-Wei Lim; I Wayan Koko Suryawan
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 1: February 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i1.pp1-8

Abstract

Refuse derived fuel (RDF) is an environmentally friendly renewable fuel developed to reduce waste generation. RDF can consist of various kinds of waste such as paper and gardens. One of the critical parameters is the chemical element and calorific value. The purpose of this study was to determine the potential for waste reduction and the relationship of ultimate longevity in RDF to the calorific value. This study's paper and garden waste mixture were P0 (100% paper), P25 (75% paper and 25% garden), P50 (50% paper and 50% garden), P75 (25% paper and 75% garden), and P100 (100% garden). The calorific value of the mixture can reach 3.6-5.2 kWh/kg. Simultaneously the relationship of ultimate elements nitrogen (N), hydrogen (H), oxygen (O), and ash affects the heating value of RDF. Sampling the application in Depok City can reduce waste by 6.67%, with the potential for electrical energy from paper and garden wastes of 358,903.8 kWh and 48,681 kWh, respectively. This shows that this energy waste can supply 0.1% of the total daily electricity demand in Depok City.
Characteristics of Density and Hardness on Caloric Value of Substitution of Biomass and Pet Plastics as Refused Derived Fuel Pellets Pratiwi Claudia Gaina; Mega Mutiara Sari; I Wayan Koko Suryawan; Wisnu Prayogo; Kuntum Khoiro Ummatin; Qurrotin Ayunina Maulida Okta Arifianti; Niswatun Faria
Jurnal Bahan Alam Terbarukan Vol 12, No 1 (2023): June 2023 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v12i1.38069

Abstract

The utilization of biomass and polyethylene terephthalate (PET) waste as raw material for refuse-derived fuel (RDF) has been studied. However, physical such as density and hardness are still not widely used. This study aimed to determine the relationship between variations in the composition of PET and physical garden waste density and hardness on the quality of the caloric value of RDF. Density measurements were carried out with the Ultrapyc 1200e instrument. While for hardness, using the Shore D method. The Shore D Hardness test is a standardized test that involves evaluating the amount of depth that may be penetrated by a certain indentation. The lowest density is RDF pellets for food waste at 1,537 kg/m3 and consists of RDF pellets for plastic waste at 2,560 kg/m3. In line with the density, the hardness value increases with the addition of the PET composition. The density and hardness values in the RDF mixture show a simultaneous relationship to the heating value. The highest caloric value achieved is the use of 100% PET as pellets which can reach 5765 kcal/kg.
PENDAMPINGAN PENGEMBANGAN USAHA UMKM MR UDANGKU DESA LUMPUR, GRESIK Adhitya Febriansyah; Aurillia Iftitah Putriana Revanggi -; Kuntum Khoiro Ummatin; Anindita Adikaputri Vinaya; Elita Fidiya Nugrahani; Yunita Siti Mardhiyyah
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 4: September 2023
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v3i4.6226

Abstract

Kegiatan pengabdian masyarakat merupakan salah satu bentuk kontribusi dari lembaga pendidikan dan tenaga akademik untuk memberikan manfaat langsung kepada masyarakat. Universitas Internasional Semen Indonesia (UISI) melalui program studi Manajemen Rekayasa telah melaksanakan kegiatan pengabdian masyarakat yang bertujuan untuk membantu pengembangan usaha UMKM MR Udangku di Kelurahan Lumpur, Gresik. Pengembangan atau inovasi terhadap suatu produk telah dilakukan pada pengmas sebelumnya dan menghasilkan inovasi olahan udang sebagai hasil tangkapan hasil laut terbesar di Kelurahan Lumpur. Produksi telah rutin dilakukan hingga terbentuk UMKM UdangKu. Dengan pemasaran yang dilakukan secara langsung dan juga melalui e-commerce. Namun, terdapat berbagai aspek yang perlu diperhatikan dalam pengembangan produk untuk meningkatkan kualitas, daya saing, dan keberlanjutan usaha. Metode yang digunakan pada pengembangan usaha UMKM MR Udangku yaitu HoQ (House of Quality) untuk Identifikasi Kualitas Produk, Pareto dan Fishbone Diagram untuk menguji Kualitas Produk, Pengembangan Izin Usaha untuk (NIB dan Halal) serta Manajemen Keuangan untuk menghitung HPP (Harga Pokok Penjualan). Hasil dari pendampingan pengembangan usaha ini adalah mengetahui peluang bisnis yang bisa dikembang, melakukan evaluasi dan peningkatan kualitas produk, mendapatkan NIB dan Sertifikasi Halal serta mengetahui HPP produk nugget udang.
PENGEMBANGAN PRODUK HASIL TANGKAPAN PADA KELOMPOK ISTRI NELAYAN DESA LUMPUR, GRESIK Elita Fidya Nugrahani; Kuntum Khoiro Ummatin; Anindita Adikaputri
Proceeding Maritime Business Management Conference MBMC: Proceeding Maritime Business Management Conference 2023
Publisher : Program Studi D4-Manajemen Bisnis, Jurusan Teknik Bangunan Kapal, Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/mbmc.v2i2 2985-379.2583

Abstract

Lumpur Village, Gersik, is a coastal area that has a huge potential for marine products, and most of the population works as fishermen. Marine products are usually sold directly to middlemen, and only a small portion was processed. On the other hand, fishermen's wives could improve their economies by helping to process marine products and increase their value. Thus, the development of marine products needs to be carried out. The methods used to obtain suitable products are interviews, observation, market research, and financial feasibility analysis. Based on interviews and observations, Lumpur Village, Gresik has 25 kg/day of shrimp potential. Based on market research, the processed shrimp preferred by 32% of respondents are nuggets. The Shrimp nuggets business run by fishermen's wives will be using sales methods both direct and online. The financial feasibility analysis shows that the Net Present Value is positive, and the Payback Period is less than the project duration; hence, this business is feasible.
Co-Authors Abidin, Muhammad Rizal Abidin, Muhammad Rizal Adhitya Febriansyah Anindita Adikaputri Anindita Adikaputri Vinaya Arifianti, Qurrotin Ayunina Maulida Okta Aulia Agung Dermawan Aurillia Iftitah Putriana Revanggi - Budiharso, Tedy Eko Dewi Annisa Yakin Dimas Akmarul Putera Dwi Ely Kurniawan Elita Fidya Nugrahani Eva Nur Fauziah Faria, Niswatun Gaina, Pratiwi Claudia Iva Yenis Septiariva Jorvick Steve Jun-Wei Lim Junianto, Mochammad Annas Lim, Jun-Wei Mardhiyyah, Yunita Siti Maulida Okta Arifianti, Qurrotin Ayunina Maulida Okta Arifianti, Qurrotin Ayunina Mega Muitiara Sari Mega Mutiara Sari Novantio Bagas Putra Pratama Nugrahani, Elita Fidiya Nurulbaiti Listyendah Zahra, Nurulbaiti Listyendah Pratiwi Claudia Gaina Qurrotin A'yunina MOA Qurrotin Ayunina Maulida Okta Arifianti Qurrotin Ayunina MOA Sari, Mega Mutiara Sarwono, Ariyanti Septiariva, Iva Yenis Suhardono, Sapta Suryawan, I Wayan Koko Wisnu Prayogo