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All Journal Jurnal Rekayasa Mesin Eksergi: Jurnal Teknik Energi Jurnal Hilirisasi Technology kepada Masyarakat (SITECHMAS) Jurnal Pengabdian Masyarakat Bangsa
Hermawan, Baktiyar Mei
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Numerical Study Of The Influence Of Air Flow Through Rectangular Elbow 90 ° With Triangle Inlet Body Disturbance Aulia, Nur Fatowil; Faradis, Luke Ezra; Su”™udy, Ahmad Hamim; Safarudin, Yanuar Mahfudz; Mulyono, Mulyono; Hermawan, Baktiyar Mei; Sutanto, Bayu
Eksergi Vol. 20 No. 01 (2024): JANUARY 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v20i01.5440

Abstract

AbstrakThis research is to determine the effect of air flow flowing through a 90 ° square elbow with the additional shape of a triangle inlet disturbance body. Simulations were carried out using the Computational Fluid Dynamics (CFD) method to analyze air flow characteristics and changes in flow patterns due to the presence of additional triangular shapes in the flow channel. Numerical simulations are carried out by taking the 90 ° square elbow geometry as the basic model and adding an additional triangle inlet disturbance body shape to it. The simulation results show that the triangle inlet disturbance body significantly influences the air flow inside the elbow. This effect can increase turbulence producing different pressure and velocity contours along the elbow. The effect of flow velocity on the flow in the elbow results in a higher velocity if the form of disturbance is also greater. This research could provide greater understanding of the influence of additional components on fluid flow in channels with similar geometries, opening up potential applications across a wide range of industries.Keywords”” Air flow simulation, Triangle Disturbance, Pressure, Speed
Analysis Of Solar Power Plants With A Capacity Of 100 Wp With Automatic Transfer Switch In The Energy Conversion Laboratory Of Semarang State Polytechnic Suwarti, Suwarti; Aulia, Nur Fatowil; Wahyono, Wahyono; Prasetyo, Budhi; Hendrawati, Dwiana; Hermawan, Baktiyar Mei
Eksergi Vol. 20 No. 02 (2024): MAY 2024
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/eksergi.v20i02.5807

Abstract

Solar energy is one of the renewable energy sourcesby utilizing the sun as its energy source. The planning of thePLTS uses an on-grid system, the system is still connected tothe PLN network. The system is used as a backup forelectricity flow. The system will work automatically when thePLN electricity flow is cut off by utilizing the AutomaticTransfer Switch (ATS) control system. The PLTS was tested bymeasuring the voltage, current, and input and output powerfor 5 days from 09.00-15.00 WIB with data collection every 60minutes. Then calculations were made to determine theefficiency of the PLTS. Calculations were also made of theenergy produced by the panels needed and produced by thelights ideally and actually. The results of the DC voltage andDC current tests on average at a load of 70 Watts produced bythe solar panel were 12.7 V and 2.41 A with a data collectionperiod of 7 hours, producing energy of 214.3 Wh andproducing the highest efficiency of 7.9% and the lowest 4.84%.
Co-Authors Adiba, Azka Fikral Ahmad Hamim Su’udy Aminuyati Anis Roihatin Ariyanto, Wahyu Aulia, Nur Fatowil Bono Bono Budhi Prasetiyo Budhi Prasetyo Dwiana Hendrawati Elhas, Rivan Ma’rivan F Gatot Sumarno, F Gatot F. Gatot Sumarno, F. Gatot Faradis, Luke Ezra Gatot Suwoto Hartanto, Jimmy Margana Margana Mariani, Dina Mochammad Denny Surindra Mulyono Mulyono Nanang Apriandi Putri, Tania Prameswari R, Rizky Amelia Sahid Sahid Sai'in, Ali Slamet Priyoatmojo, Slamet Sofiani, Gizella Solikhin, Akhmad Riadzus Sutanto, Bayu Suwarti Suwarti Su”™udy, Ahmad Hamim Totok Prasetyo W, wiwik Purwati Wahyono Wahyono Wiwik Purwati Widyaningsih Yanuar Mahfudz Safarudin Yusuf Dewantoro Herlambang