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Hariningrum, Rita
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Engineering

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Pengaruh Crank Shaf Deflection pada Auxiliary Engine/ Genset yang Melampaui Standart dan Strategi Mengembalikan ke Kondisi Ideal Kurniawan, Ratna Dwi; Hariningrum, Rita
Marine Science and Technology Journal Vol 5 No 1 (2024): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v1i1.3079

Abstract

The dieselEgine that drives the ship's electric generator must always be maintained in good condition, because as a electrical power plant throughout the ship, without an electrict the ship cannot function normally. To keep it in top condition and prevent black out, diesel maintenance must be carried out according to standards so that this does not happen after damage has been repaired. One thing that must be done and reported to the classification is the crankshaft inspection. The aim of this research is to find out how much deflection occurs after several years of diesel engine operation, has it exceeded the specified standards? If it has exceeded how to return it to standard condition? The methodology used is quantitative and qualitative, by measuring directly on objects and comparing with existing standards, qualitative by direct observation in the field and comparing with existing references. From the existing results, conditions were obtained that exceeded standards, which were then repaired. The benefit of this research is that it provides an overview of how to carry out maintenance, measure, assess, and how to overcome problems that occur with the engine.
Model Tata Kelola Penangkapan Ikan Terukur di Zona Penangkapan Ikan Kota Semarang-Jawa Tengah Asmoro, Eddi Indro; Tugino, Tugino; Harini, Harini; Hariningrum, Rita
Marine Science and Technology Journal Vol 6 No 1 (2025): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v2i1.3682

Abstract

Penelitian ini merupakan penelitian asosiatif kausal bertujuan untuk mengetahui hubungan antara dua variabel atau lebih, dengan salah satu variabel (independen) yang mempengaruhi variabel yang lain (dependen). Setelah mendapatkan pemahaman dari pendekatan hubungan kausal studi literatur dan menentukan indikator-indikator variabelnya akan dibuat kerangka konsep modelnya berdasarkan hubungan kausal. Peran penting dalam model tata kelola penangkapan ikan terukur membutuhkan peran pertama adalah dari pemerintah, akademisi, dan masyarakat untuk meningkatkan kolaborasi dalam pengelolaan perikanan; dan peran kedua adalah pemerintah daerah untuk mendukung implementasi sistem penangkapan ikan terukur. Berdasarkan hasil penelitian ini hanya mampu menentukan hubungan kausal dalam bentuk indikasi pengelompokan pada tiga hal pokok dalam kerangka model. Penelitian ini bisa disimpulkan sebagai penelitian foundation. Ketiga hal pokok tersebut yang merupakan variabel eksogen adalah: 1). Kuota penangkapan yang menunjukkan ketahanan ekologi sekaligus mendukung ketahanan pangan 2). Nilai produksi kuota penangkapan yang menunjukkan ketahanan ekonomi, dan sedangkan variabel endogenya adalah 3). Nilai pendapatan dan kesejahteraan nelayan yang menunjukkan ketahanan sosial-ekonomi masyarakat.
Analisis Persentase Losses Karena Ketidakseimbangan Beban Pada Trafo Distribusi Untuk Menentukan Nilai Efisiensi Himawan, Dewani; Asmoro, Eddi Indro; Hariningrum, Rita; Widodo, Panut
Marine Science and Technology Journal Vol 6 No 2 (2025): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v2i2.4002

Abstract

Pada era industrialisasi ini tenaga listrik sangat dibutuhkan sebagai sumber energi utama untuk berbagai peralatan dalam dunia industri, maka dibutuhkan sistem pendistribusian yang sangat baik supaya supplay energy tidak terganggu, Sistem distribusi tenaga listrik harus diawasi sesuai peraturan supaya tidak menimbulkan losses yang dapat merugikan pelanggan. Dalam hal ini dibutuhkan transformator yang berfungsi sebagai system pendistribusian tetapi dalam penerapan dilapangan sering kali terjadi losses maka perlu pengawasan dalam melakukan penyambungan wirring antar fasa yang sesuai peraturan PUIL 2011 dan standar nasional Indonesia (SNI). Setelah melakukan analisa didapat akibat losses sebesar 6,6% dan 0,6%.
Analisa Pengaruh Sudut Kemiringan Panel Surya100 WP Terhadap Daya Listrik Hariningrum, Rita
Marine Science and Technology Journal Vol 2 No 2 (2021): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v1i2.1585

Abstract

Pembuatan Alat Peraga Hydrophore Tank 3 Belokan 1 Katup Pipa 0,75 Inchi Wibowo, Riyanto; Hariningrum, Rita
Marine Science and Technology Journal Vol 4 No 1 (2023): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v3i2.2513

Abstract

Fresh water is an important requirement in fixed or moving structures such as ships. One way to provide fresh water is through a hydrophore system. Hydrophore was chosen as an alternative to public water tower systems because water towers were considered less aesthetically pleasing. Another consideration is that every part of the ship should be taken care of so that it does not interfere with the performance of the ship. The ship chose the hydrophore system because this system is dimensionally more practical when compared to a water tower. The installation of a water basin on a ship must take into account the number of turns and valves in the outlet pipe. A hydrophore simulation tool with many bends and valves is required to predict the adequacy of water demand on board. This research was conducted to determine the conditions and obtain the specifications from the hydrophore system. The support created consists of 3 turns and 1 valve. The bus emission specification is 9x10-3 m3 with an inlet pipe flow rate of 391x10-6 m3/s and an outlet pipe flow rate of 343282x10-3 m3/s. Major head loss is 21x10-3 m and minor head is 0.7 m.
Sistem Kontrol Alarm pada Tangki Bahan Bakar Hariningrum, Rita; Utomo, Sukarno Budi
Marine Science and Technology Journal Vol 4 No 2 (2023): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v4i1.2793

Abstract

A level switch is a device that detects the height or level of a volume of liquid in a tube or tank, we take an example, for example a level switch is installed in a water tank to detect the amount or volume of fuel entering the tank, then this device is connected to a pumping machine. fuel, when the volume of fuel in the tube has reached a certain level (high) and is detected by the sensor, the level switch sensor will work because the front of the level switch is submerged in oil, at that time the level switch will instruct the fuel pump engine to stop rotating, in the sense that the level switch will cut off the flow of current leading to the pumping machine. The level switch system has a fairly simple way of working. When the oil reaches half of the lower ballast (low level) then two sinkers will hang where the total weight will be able to pull the switch on the switch body at the top. The switch that is attracted to the ballast will make the relay contact close and electric current will flow through the cable to the fuel control engine which then starts and fills fuel into the tank until it reaches a high level.
Kajian Analisis Perhitungan Sistem Penggerak Katrol Listrik di PT. Jasa Marina Indah Hariningrum, Rita; Utomo, Sukarno Budi
Marine Science and Technology Journal Vol 3 No 2 (2022): Marine Science and Technology Journal
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/maristec.v2i2.2037

Abstract

The development of increasingly advanced technology requires the industrial world to carry out the production process quickly and easily by prioritizing quality and quantity. One of the tools that can help the production process (transportation equipment) is a pulley that serves as a means of support to speed up the production process or move goods from one place to another. Main parts of electric pulley include Hoist, Pulley, Trolly. This study describes the design of an electric pulley system that is capable of lifting a load of 2000 kg. With a lifting speed of Hoist 20 m/s, Pulley 10 m/s, Trolly 5 m/s. The results show that the electric pulley drive system design with the above specifications produces a motor power of 61.393 kw Hoist, 30.6971 kw Pulley, 15.3482 kw Trolly.
Co-Authors Eddi Indro Asmoro, Eddi Indro Harini Harini Himawan, Dewani Kurniawan, Ratna Dwi Tugino, Tugino Utomo, Sukarno Budi Wibowo, Riyanto Widodo, Panut