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All Journal Community Development Journal: Jurnal Pengabdian Masyarakat Indonesia Berdaya Automotive Experiences IRA Jurnal Pengabdian Kepada Masyarakat Jurnal Polimesin
Eswanto, Eswanto
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Journal : Jurnal Polimesin

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Experimental study fluidized bed reactor using number hole 8 to see distribution gas fluid pressure Eswanto, Eswanto; Pinem, Riza Refaya; Suprapto, Suprapto
Jurnal Polimesin Vol 21, No 5 (2023): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i5.4101

Abstract

Innovations related to fluidization systems using fluidized bed reactor are still needed to be developed in order to improve the fluidization process services for particle in order to produce the right fluid pressure in certain fluidized bed spaces that are currently operating. In this research, the pressurized fluid in question is air sourced from a compressor which has been arranged in such a way. The aim of the research is to obtain information regarding the characteristics of bubble resulting from the air pressure process pressing fluidized system particle. The research method was carried out by experimenting with testing fluidized bed reactor as test model in the form 8 hole, providing air pressure from compressor then observing the characteristics visually. The results of this visually documented research have been carried out and obtained. By using the number of hole 8 with height silica sand inserted to height of 25 cm, which is measured from the beginning of the hole plate before pressure is applied. After being given high pressure the bed increased to 27.6 cm, the highest bubble diameter was obtained at the input air pressure of 8 bar, which was 3.9 cm, with bed silica sand produced 26.1 cm, where the babble condition began to appear after the 9th second. Other characteristics also obtained reactor temperature of 25.45 °C where this condition is the smallest when compared to other pressure input results, this is because the small input pressure causes the temperature to be low, while the large pressure input temperature becomes higher due to many factor, including friction between silica sand, silica sand collisions, and faster movement of particle material.
Influence of Indium Tin Oxide (ITO) poling temperature in vacuum on surface roughness of Polyvinylidene Fluoride(PVDF) film Suprapto, Suprapto; Lisyanto, Lisyanto; Eswanto, Eswanto; Riadi, Selamat; Gunawan, Safri; Iskandar, Henry; Jubaidah, Jubaidah; Muhtadin, Muhtadin
Jurnal Polimesin Vol 21, No 6 (2023): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i6.4454

Abstract

The surface roughness is a significant parameter of the performance of PVDF thin film sensors. In this work, we have investigated the effect of ITO poling in vacuum at various temperature on the surface roughness of uniaxially stretched PVDF film. The influence of poling temperature on the surface roughness of PVDF film was examined using atomic force microscopy (AFM). In this work, the AFM data are obtained through the database, and topography is analyzed using Gwydion Software (GS). GS has characterized surface roughness in terms of Average Roughness (Ra), Root Mean Square (Rrms), and Arithmetic average height (Rz). The results show that the GS can detect and measure profile thickness and roughness on a nanoscale with reliable accuracy. The results confirm that the increased poling temperature can reduce the roughness of the surface.
Co-Authors Anggito, Anggito Batumahadi, Batumahadi Damanik, Marini Daud, Sarbani Depari, Jordan River Gunawan, Safri Hamidi, Mohd Adnin Hanapi Hasan Hasibuan, Edi Sarman HENRY ISKANDAR Husni Thamrin Iswandi Iswandi Iwan Gunawan Januariyansah, Sapitri Jubaidah, Jubaidah Lisyanto . Melvi, Lisa Muchsin Harahap Muhtadin Muhtadin Nadeak, Osin Pakpahan, Binsar Pasaribu, Muhamamd Nuh Hudawi Pinem, Riza Refaya Selamat Riadi Siagian, Tony Siahaan, Muhammad Yusuf Rahmansyah Suprapto Suprapto Surya Dharma Umar, Kifli Yusop, Ahmad Fitri Zulkarnain Lubis