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All Journal IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Journal of Technology and Computer (JOTECHCOM)
Ramadhan, Fandy
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Automotive Engineering Computer Science & IT Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Uji Kinerja Burner LPG Mesin Stirling dengan Variasi Tekanan Bahan Bakar Jufrizal, Jufrizal; Mawardi, Mawardi; Ramadhan, Fandy
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 2 (2022): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.836 KB) | DOI: 10.56862/irajtma.v1i2.18

Abstract

This paper is the result of initial research on the development of an LPG burner planned for the Gamma-type Stirling engine. The purpose of this study was to determine the effect of variations in fuel pressure on flame temperature and mass flow rate of fuel in LPG burners. This research method was carried out experimentally by varying the fuel inlet pressure on the regulator to the LPG burner from high to low. The LPG fuel used is 3 kg LPG produced by PT Pertamina (Persero). The pressure drop in the LPG gas tanks was varied and observed in a range of values between 20-17.5 kg/cm2, 15-12.5 kg/cm2, and 10-7.5 kg/cm2. In testing 20-17.5 kg/cm2, 15-12.5 kg/cm2, and 10-7.5 kg/cm2 the average fire temperature is 724.6°C, and 743.6°C respectively. , 631.4°C. Meanwhile, the mass flow rate of the fuel according to the order of pressure variations was 0.131 kg, 0.264 kg, and 0.162 kg respectively for 1 hour of testing. The temperature and mass flow rate of the fuel produced will be the basis for consideration in the Stirling engine design.
Designing a Web-Based Online Sales System for The Krakatau Inderapura Minimarket Ramadhan, Fandy; Syahputra, Dinur
Journal of Technology and Computer Vol. 3 No. 1 (2026): February 2026 - Journal of Technology and Computer
Publisher : PT. Technology Laboratories Indonesia (TechnoLabs)

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Abstract

The use of information technology in the business world is growing rapidly, including in online sales systems. Krakatau Inderapura Minimarket, as a micro-business engaged in the sale of various daily necessities in the Inderapura area, recognizes the need to adapt technology to expand its market reach and improve customer service. This study aims to design and develop a web-based online sales system that allows customers to make purchases easily and efficiently. The system development method used is the waterfall method with stages of requirements analysis, system design, implementation, testing, and maintenance. This system is designed to allow customers to view a list of available products, place orders online, select payment methods, and track order status in real-time. In addition, the system also provides administrative features for minimarket managers to manage inventory, view sales reports, and manage store profiles. The results of this study show that the implementation of a web-based online sales system at Minimarket Krakatau Inderapura can increase ease of access for customers when shopping, improve the operational efficiency of minimarkets, and provide a better overall shopping experience for customers.
Co-Authors Hapzi Ali Jufrizal Jufrizal Syahputra, Dinur