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All Journal Teknologika Seminar Nasional Riset dan Teknologi (SEMNAS RISTEK)
Dani, Muhamad
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering Mechanical Engineering Other

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Perancangan Aplikasi Tiket Support Berbasis Android Pada Pt. Japati Indonesia Di Tangerang Selatan Dani, Muhamad; Alfy, Zuhana Realita
Semnas Ristek (Seminar Nasional Riset dan Inovasi Teknologi) Vol 5, No 1 (2021): SEMNAS RISTEK 2021
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/semnasristek.v5i1.4917

Abstract

PT. Japati Indonesia terus bertumbuh setiap tahunnya, begitu pula jumlah client yang dimiliki semakin bertambah, hal ini membuat proses supporting dan pelaporan masalah tidak dapat dilakukan melalui email dan whatsapp group. Cara tersebut membuat proses supporting menjadi kurang efektif dan efisien. Beberapa laporan terkadang terlewat dan pimpinan sulit untuk mengontrol laporan yang sudah diproses dan yang belum diproses. Penelitian ini dilakukan bertujuan untuk membantu menyelesaikan masalah tersebut dengan merubah proses pelaporan ke dalam aplikasi, membantu proses pelaporan agar tersampaikan dengan baik dan memberikan fasilitas yang lebih baik kepada client. Penelitian yang dilakukan dalam proses supporting atau helpdesk adalah dengan menggunakan waterfall model. Penelitian menggunakan waterfall model dimulaidengan proses analisis, desain, pengodean, pungujian, sampai pada tahap pendukung atau support. Aplikasi ini dibangun dengan menggunakan android studio dan menunjang aplikasi tersebut penulis membangun pula API (Apllication Programming Interface) yang dibangun menggunakan PHP, JSON dengan database MySQLi. Hasil dari penelitian ini adalah terancangnya aplikasi tiket support yang dapat membantu prosessupporting dan pelaporan masalah.
UJI EKSPERIMENTAL DAN ANALISIS PERPINDAHAN PANAS PADA SERPENTINE CHANNEL UNTUK PENDINGIN PANEL SURYA MENGGUNAKAN FLUIDA NANO Ina, Ina afriani; Amri Abdulah; Dede ardi rajab; Dani, Muhamad; Nur Alam, Deden; Jaenudin
Jurnal Teknologika Vol 14 No 1 (2024): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v14i1.381

Abstract

The potential of solar energy in Indonesia is quite large as a renewable energy source, usually called solar panels or photovoltaic (PV) technology as a device capable of converting solar radiation into electrical energy. When solar panels operate, only about 15% of solar radiation is converted into electrical energy, while the rest is converted into heat. The intensity of solar radiation and the temperature of the surrounding air affect the voltage and current produced by solar cells. This condition requires a device that can regulate the temperature state of the solar panel. This study was conducted to overcome the heat problem in solar panels through optimizing the thermal properties of the cooling fluid by adding nano-sized SEM/EDS-tested particles to the W/EG base fluid, which is commonly called nanofluids, then making serpentine channels as a heat exchanger was also carried out. The experimental test process was carried out with a flow rate variation of 1 to 3 LPM and the inlet temperature was kept at 35˚C. The results showed that the highest cooling fluid flow rate was the most optimum condition. The Reynolds number shows that the heat transfer coefficient increases by 1011.72 W/m◦K, 1321.72 W/m◦K, and 2070.39 W/m◦K, respectively. The Nusselt number tends to increase as the Reynolds number of the nanofluid increases. An increase in Nusselt number indicates an increase in heat transfer coefficient, while Reynolds number indicates laminar flow of the coolant. Similarly, the pressure drop increases with increasing flow rate.
Co-Authors Alfy, Zuhana Realita Amri Abdulah Dede Ardi Rajab Ina, Ina afriani Jaenudin Nur Alam, Deden