Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jupiter Nucleus Journal
Rachmadi, Rachmadi
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Library & Information Science

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pemanfaatan SIG Untuk Model Pemetaan Zona Potensial Penangkapan Ikan di Perairan Lampung Rachmadi, Rachmadi; Triloka, Joko; Yusuf Irianto, Suhendro; Sriyanto, Sriyanto
JUPITER (Jurnal Penelitian Ilmu dan Teknologi Komputer) Vol 16 No 2 (2024): Jurnal Penelitian Ilmu dan Teknologi Komputer (JUPITER)
Publisher : Teknik Komputer Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.13994437

Abstract

The waters in the Lampung region have significant potential as fishing areas. Fisheries potential in the Lampung region is supported by various factors, including a climate that supports plankton growth and a fertile ecosystem, as well as a variety of habitats that are suitable for various types of fish. In addition, traditional coastal activities such as fishing, boat fishing, and fish farming in ponds are also an important part of the local economy. However, so far fisheries management is still not optimal, it is important to manage fisheries potential optimally and sustainably. This research aims to present a geographic information system modeling regarding weather changes in the Lampung region and its surroundings in order to optimize fishing activities in Lampung waters. Data analysis uses Aqua MODIS data extraction as well as wind data gridding and description. The research results show that the waters in Lampung Province have significant potential regarding the presence of fish based on SST distribution.   Keywords— Geographic information system, weather data, lampung waters, aqua modis  
Evaluasi Performa Furnace EDC (Ethyl Dichloride) Cracker di VCM (Vinyl Chloride Monomer)-1 Plant Ahmad Zulkipli, Rohiman; Rachmadi, Rachmadi; Muhammad , Yafi Fadhlurohman
Nucleus Journal Vol. 4 No. 1 (2025): May
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/nucleus.v4i1.4106

Abstract

Furnaces in the production of VCM (Vinyl Chloride Monomer) must be operated with optimal efficiency to maximize production and minimize the formation of impurities (coke). Furnace efficiency is evaluated based on the ratio of heat generated from fuel combustion to heat absorbed by the EDC (Ethyl Dichloride) fluid, and is a key indicator of operational feasibility. In addition, the pressure difference of the inlet convection and outlet radiant sections is used as an additional parameter, where an increase in this value reflects the accumulation of deposits in the tubes. If the efficiency drops below the minimum operating conditions or the pressure difference between the convection inlet and outlet radiant section exceeds 4 kg/cm2G, the furnace is considered unfit for operation and decoking must be performed, which will increase operating costs. During the 12 days of monitoring (measurement every 8 hours), the average efficiency was 85.370%, the highest value was 87.348%, and the lowest value was 83.764%. The efficiency values tended to fluctuate and were below the minimum operating condition (88.898%). This is due to changes in operating conditions and manual control. Therefore, although the pressure difference is still below the threshold of 4 kg/cm2G, the furnace is considered unfit for operation.
Co-Authors Muhammad , Yafi Fadhlurohman Sriyanto Sriyanto Triloka, Joko Yusuf Irianto, Suhendro Zulkipli, Rohiman Ahmad