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All Journal JPM17: Jurnal Pengabdian Masyarakat JHP17 (Jurnal Hasil Penelitian) Jurnal Rekayasa Mesin Rang Teknik Journal Jurnal Teknik Mesin Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) SEMINAR NASIONAL PENELITIAN DAN PENGABDIAN KEPADA MASYARAKAT Journal Community Service Consortium
Ninik Martini
Teknik Mesin, Teknik Mesin, Universitas 17 Agustus 1945 Surabaya
Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Social Sciences Other

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ANALISA PENGARUH PANJANG PIPA INLET DAN PANJANG PEGAS KATUB BUANG TERHADAP PERFORMANCE POMPA HIDRAM Santoso, Edi; Utomo, Gatut Priyo; Martini, Ninik
JHP17 (Jurnal Hasil Penelitian) Vol 1 No 01 (2016)
Publisher : Lembaga Penelitian Dan Pengabdian Kepada Masyarakat Universitas 17 Agustus 1945 Surabaya

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

Abstract

Hidram pump is one of the water pumps are energy efficient andenvironmentally friendly. Pump hidram an effective technology in the field ofenergy pumping by using the momentum of the water (water hammer) to raisethe water, so the pump hidram one water pump that does not use fuel andelectricity. Effectiveness hidram pump performance is affected by severalparameters such as the diameter of the pipe, reservoir height, exhaust valve, theair tube on hidram pump, inlet pipe length. This study aimed to observe andanalyze the effect on the length of the inlet pipe to the pump hidram highdischarge pumps and pumping. This research method through the design of thepump installation hidram and observation influence the inlet pipe length (6 m, 8m, 10 m), and the observation of the effect of the length of the exhaust valvespring (7 cm, 8 cm, 10 cm) to the pressure value (H) and the value of discharge(Q) to the pump performance hidram. The test is performed in ProductionProcess Laboratory August 17, 1945 University of Surabaya. The longer thepipe, the flow in the pump inlet hidram (Q) generated will be even greater. So inthe above study also directly proportional to the value of head (H) anddischarge rate (Q) on the pump performance hidram. So the value of theexisting pressure in the pump hidram with maximum value is generated headwith value - average (H) 1.41 bar and the discharge of water produced with -average (Q) 21 liters / min. This is because the moment of greatest impact onthe water valve.Keywords: Pump Hidram
IbM DUSUN KRAJAN PELATIHAN PENGELOLAAN KUE BROWNIES DAN KUE NUGGHETS BERBAHAN TANAMAN UMBI – UMBI AN (JALAR) Ida Bagus Cempena; Ida Ayu Nuh Kartini; Ninik Martini
JPM17: Jurnal Pengabdian Masyarakat Vol 1 No 02 (2015)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jpm17.v1i02.548

Abstract

Pacitan precisely in Krajan Wonodadi Kulon Ngadirojo, geographically wide area 891.88 ha, the majority of the land in the form tegal / fields covering an area of 420.53 ha. Potential in Agricultural Sector became the leading commodity contribute greatly to the economic development, both directly the raw material used and processed through a management process of making a cake. Commodity raw materials from the agricultural sector are: Clove, Coconut, Cassava, Banana, Bluebird, Melinjo, and Tuber (Sweet), who plays prop improve household incomes and expanding employment opportunities are raw materials tubers (Potato) processed form : Cakes (Brownies, Nugghets). Given the great desire of the group Partners Household Small Business to supplement the family income, then Program (IbM) wants to realize by means of procurement (TTG) in the form of machines and provide a wide range of training business groups cakes made from local plants Bulbs - tubers (Potato). Procurement of Appropriate Technology (TTG) in the form of machine is very helpful for a smooth production process from traditional to technology moderan, while by getting the various training areas of management will broaden pengetahuanya Partners Small Business, towards the preparation of implementing entrepreneurship in the management of baking brownies and cakes Nugghets based tubers (Potato). The results are very encouraging in the presence of procurement (TTG) in the form of machine Ovens and Machines Mixer, the production process is increasing and growing rapidly, while also implementing various management training to make the performance of Partners Small Businesses increasingly innovative in developing a business to make a cake made from plant ts ( Potatoes)Keywords : Management of Appropriate Technology (TTG) Cakes Brownies and Cake Nugghets Made from plant  Tubers (Potato)
Analisis Cacat Proses Pengecoran pada Pembuatan Sekrup Penyambung Tulang dengan Menggunakan Metode Cetakan Lost Wax Casting Aziz, Moh. Nor Ali; Santoso, Edi; Martini, Ninik; Rusnaldy, Rusnaldy
Jurnal Rekayasa Mesin Vol 17, No 3 (2022): Volume 17, Nomor 3, Desember 2022
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v17i3.3924

Abstract

Kementrian Kesehatan Republik Indonesia menerbitkan data bahwa Indonesia masih tergantung produk ortopedi impor hingga mencapai 92% pada Oktober 2017. Oleh sebab itu, inovasi pada proses manufaktur diperlukan untuk mengurangi ketergantungan Indonesia impor produk ortopedi. Sekrup penyambung tulang termasuk dalam kategori produk ortopedi yang dimana produknya tidak boleh terkorosif, tidak boleh mengalami distorsi dan memiliki akurasi dimensi yang lebih tinggi daripada sekrup pada umumnya. Salah satu proses manufaktur yang berpotensi baik dalam inovasi ini adalah lost wax casting. Berdasarkan kajian litelatur proses lost wax casting mampu menghasilkan sekrup dengan keakurasian dimensi yang baik, sehingga selanjutnya perlu dianalisis cacat yang terjadi pada proses pengecorannya. Bahan utama untuk Sekrup penyambung tulang yang aman bagi tubuh manusia adalah paduan magnesium. Namun, untuk proses pengecoran bahan ini diperlukan alat khusus karena magnesium mudah teroksidasi dan terbakar jika proses penuangan dilakukan diruang terbuka. Oleh sebab itu, untuk menghindari hal ini bahan sementara yang dipertimbangkan adalah timah pewter. Pembahasan dalam penelitian ini meliputi: proses manufakturnya dan pengamatan cacat produk. Penelitian ini dimulai dari metode experimental dengan menggunakan proses investment casting. Pembuatan cetakan pattern wax menggunakan bahan dari silicon rubber dengan pecampuran katalis 2,6% dan pengencer 10%. Sedangkan pembuatan cetakan ceramic slurry adalah campuran antara air dan gypsum dengan perbandingannya 1:1,25.
Analisis Optimasi Cetakan Briket Sistem Hidrolis Menggunakan Pendekatan Finite Element Method Elisa Sulistyorini; Ninik Martini; Dani Susanto; Maulana Cahyono
Jurnal Teknik Mesin Vol 17 No 1 (2024): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.17.1.1262

Abstract

The briquette mold is a critical component in the manufacturing process of the hydraulic briquette molding machine. Improved mold design can increase production efficiency and quality. The finite element method simulates the structural response of the briquette mold to hydraulic pressure. An accurate mathematical model is built based on material parameters, mold dimensions, and hydraulic load characteristics. The influence of mold design variables such as geometry, materials, and internal configuration can be evaluated in detail by applying FEM. Mold optimization uses a numerical optimization algorithm to find a combination of mold parameters that provides the best structural response. The main goal of mold optimization is to increase mold durability, reduce deformation, and minimize the potential for structural failure. The optimization process is integrated with FEM analysis to achieve the optimal mold solution. Improved mold design resulting from this optimization makes a positive contribution to the efficiency of hydraulic briquette production and reduces the potential for mold damage. The results of this research by optimizing the design of the length of the rod, length of the mold, height of the central protrusion of the press, and changing the diameter of the mold, we obtained simulation results that show an even distribution of loads shown in the same color. In this study, the total deformation value was 5.0298 x 10-6 mm and the equivalent elastic strain was 3.4972 x 10-10 mm
PENGARUH SABUT KELAPA DAN CANGKANG TELUR PADA BRIKET BERBAHAN DASAR ABU KETEL Ninik Martini; Elisa Sulistyorini
Rang Teknik Journal Vol 6, No 2 (2023): Vol. 6 No. 2 Juni 2023
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v6i2.3861

Abstract

Abu ketel adalah limbah pabrik gula yang dapat dimanfaatkan kembali untuk membuat briket. Briket dengan bahan dasar abu ketel dapat dicampurkan dengan bahan lain, sebagai contoh sabut kelapa dan cangkang telur. Komposisi campuran briket adalah 85%, 75%, dan 65% abu ketel. Masing-masing variasi briket diuji menggunakan bomb kalorimeter supaya dikethui nilai kalornya. Satu variasi briket diuji sebanyak tiga kali. Dari percobaan, nilai kalor tertinggi terdapat pada variasi briket dengan campuran yaitu 75% abu ketel dan 25% sabut kelapa dengan nilai kalor rata-rata 2153,33 kal/gr. Sedangkan nilai kalor rata-rata terendah terdapat pada campuran 65% abu ketel dan 45% cangkang telur, yaitu 1053,6 kal/gr. Kata Kunci: Abu ketel, Briket, Sabut Kelapa, Cangkang Telur, Nilai Kalor
Penyuluhan Keselamatan Instalasi dan Peralatan Listrik Rumah Tangga di Desa Galengdowo Kecamatan Wonosalam Kabupaten Jombang Ismail, Ismail; Martini, Ninik; Akhmad, Zainun
Journal Community Service Consortium Vol 1 No 1 (2020): Journal Community Service Consortium
Publisher : Universitas Ciputra Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37715/consortium.v1i1.3268

Abstract

Dewasa ini seiring dengan kemajuan teknologi khususnya pada teknologi kelistrikan. Salah satu hal terpenting dalam teknologi kelistrikan adalah instalasi listrik dan perangkatnya. Ada banyak variasi baru pada perangkat semacam ini, namun sayangnya beberapa pengguna belum siap dengan teknologi baru ini terutama di Galengdowo Wonosalam. Masalah keamanan menjadi isu utama di kawasan ini, khususnya bagi ibu rumah tangga Dasa Wisma Bougenville di Galengdowo. Sehingga untuk menjaga keamanan instalasi dan perangkat listrik diusulkan sebuah solusi oleh penulis. Solusi yang diusulkan adalah dengan mengadakan “Sosialisasi Keselamatan Instalasi dan Perangkat Listrik”. Acara ini diadakan di rumah pimpinan Dasa Wisma Bougenville. Pesertanya berjumlah 25 orang anggota Dasa Wisma Bougenville. Materi utama dari sosialisasi ini adalah cara memasang perangkat listrik dengan aman di rumah.
Pengembangan Teknologi Tepat Guna untuk Optimasi Proses Pengeringan Rebung “Kringking” pada Skala UMKM di Desa Beganglimo, Gondang, Mojokerto Sulistyorini, Elisa; Nurpriyanti, Indah; Martini, Ninik
Seminar Nasional Penelitian dan Pengabdian Kepada Masyarakat 2025 Prosiding Seminar Nasional Penelitian dan Pengabdian Kepada Masyarakat (SNPPKM 2025)
Publisher : Universitas Harapan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35960/snppkm.v4i1.1344

Abstract

Program pengabdian kepada masyarakat ini bertujuan mengembangkan teknologi tepat guna berupa oven pengasapan sistem tertutup untuk optimalisasi proses pengeringan rebung “kringking” pada skala UMKM di Desa Begaganlimo, Gondang, Mojokerto. Permasalahan utama mitra adalah lamanya waktu pengeringan dengan metode tradisional, kualitas produk yang tidak konsisten, serta rendahnya higienitas akibat pengasapan terbuka. Metode pelaksanaan meliputi identifikasi kebutuhan mitra, perancangan dan fabrikasi oven di bengkel kerja Teknik Mesin Universitas 17 Agustus 1945 Surabaya, serta uji coba kinerja bersama pelaku UMKM. Oven berbentuk kabinet vertikal dengan lima tray stainless steel, sistem aliran asap tidak langsung, dan dilengkapi termometer analog. Hasil pengujian menunjukkan distribusi suhu rata-rata stabil pada rentang 75–80°C dengan deviasi ±2°C, kadar air rebung berkurang hingga 79–80%, serta tidak ditemukan kontaminasi jelaga pada produk. Produk yang dihasilkan memiliki tekstur kenyal, warna coklat cerah, dan aroma asap merata. Dampak dari kegiatan ini adalah meningkatnya kualitas, konsistensi, serta daya simpan produk rebung asap, sehingga memberikan nilai tambah ekonomi dan mendukung keberlanjutan usaha UMKM kringking di Desa Begaganlimo.
Eksperimen Pengaruh Variasi Diameter Nozzle Injektor dan Tekanan Injeksi Terhadap Efisiensi Konsumsi Bahan Bakar Mesin Diesel Aditya Kris Samudera; Alfat Sulistiya Nugraha; Ninik Martini
JURAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 2 (2026): Agustus: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i2.9415

Abstract

Diesel engines are widely used in the transportation and industrial sectors due to their high thermal efficiency and good operational durability. However, increased fuel consumption due to inefficiency of the injection system remains a common problem. Injector characteristics, particularly nozzle diameter and injection pressure, are important factors that affect the quality of fuel atomization, air-fuel mixing, and combustion efficiency. An inappropriate combination of parameters can cause suboptimal combustion and increase fuel consumption. This study aims to analyze the effect of variations in nozzle diameter and injection pressure on fuel consumption efficiency in diesel engines. The method used is an experiment with variations in nozzle diameter of 0.150 mm, 0.152 mm, and 0.154 mm and injection pressures of 400 bar, 420 bar, and 440 bar. Tests were conducted at engine speeds of 500 rpm, 1000 rpm, and 1500 rpm with a fuel consumption measurement time of one minute for each parameter combination. Fuel consumption was measured using the volumetric method and analyzed through the fuel volumetric flow rate, fuel mass flow rate, Brake Power (BP), and Brake Specific Fuel Consumption (BSFC). The results showed that the combination of a nozzle diameter of 0.150 mm and an injection pressure of 400 bar produced the lowest BSFC value, thus providing the best fuel consumption efficiency. Meanwhile, the combination of a nozzle diameter of 0.152 mm and an injection pressure of 420 bar showed the closest condition to optimal because it was able to provide a balance between atomization quality and the amount of fuel injected, resulting in efficient and stable combustion. Thus, the efficiency of a diesel engine is influenced by the balance of nozzle size and injection pressure, not solely by the lowest fuel consumption.
Co-Authors Aditya Kris Samudera Akhmad, Zainun Alfat Sulistiya Nugraha Alfian, Itmi Anas, M Khoirul Dani Susanto Edi Santoso Fajar, Mochammad Firmansyah, Hendra Gatut Priyo Utomo, Gatut Priyo Hendra, Alfedo Ida Ayu Putu Sri Widnyani Ida Bagus Cempena Indah Nurpriyanti Ismail Ismail Kartini, Ida Ayu Nuh Khadarisman, Erick Maula Nafi Maulana Cahyono Moh. Nor Ali Aziz Mufti, Mohammad Pangestu, Angga Arya Pasha, Crysna Prayoga, Indrajid Ramadani, Tony Razaq, Nuradi Mulya Rifaldhy, Muhammad Syahrul Royyan Firdaus Rusnaldy Rusnaldy Sabtadi, Catur Hari Samsuddin, Muhammad Soenaryo Soenaryo Sudarmono . Sulistyorini, Elisa Supardi Supardi Susanto, Dani Suyono Suyono Zaenudin, Akhmad