Desain Media Interaktif (Interactive Dashboard) Sentralisasi Data Total Productive Maintenance di 44 Unit Cilacap Plant PT Solusi Bangun Indonesia Tbk

Industri semen tidak terlepas dari maintenance, data mengenai management perawatan Fasilitas menjadi penting untuk diketahui semua orang agar bisa selalu memantau kondisi equipment dan lingkungan pabrik apabila terjadi abnormalitas, namun di PT Solusi Bangun Indonesia Tbk, Cilacap Plant masih menggunakan metode konvensional (paperbased) dalam record perawatan, hal ini kurang efektif dan efisien maka dari itu dilaksanakan proyek pembuatan media interaktif sebagai sentralisasi data dengan mengembangkan kaidah industri 4.0. Media interaktif (interactive dashboard) total productive maintenance bertujuan untuk mensentralisasi data terkait management perawatan Fasilitas. Media interaktif ini dibuat dengan memanfaatkan google Apps seperti google form, google site, serta google spreadsheet dan formula yang terdapat di dalamnya dan disatukan dalam bentuk website yang dikemas dalam bentuk QR code.Output yang dihasilkan yaitu website untuk menampilkan informasi mengenai jadwal dan prosedur perawatan mesin dan atau fokus area tertentu. Management lebih mudah untuk menilai dan memberikan review terkait pekerjaan yang berhubungan dengan TPM di lapangan dengan hanya melalui satu genggaman saj

Design of Solid Oxide Structure on the Composite Cathode for IT-SOFC

Solid oxide structure of the cobalt-free composite has been exploited as a new cathode material for IT-SOFCs. The composite model system was synthesized using the metallic oxide material, which was formed by a solid-state reaction technique. The generation of the Sm0.5Sr0.25Ba0.25FeO3-δ (SSBF) model system was carried out during the sintering process. The weight loss and oxygen content were investigated by thermal gravimetric analysis (TG). Meanwhile, X-ray diffraction characterized the structure of the composite and thermal conductivity tested the conductivity properties. The results showed that the structure of the SSBF composite demonstrated the perovskite single phase leading to the structural design. The decomposition and evaporation of the constituent elements of the composite corresponded to weight losses during the constructing process. The oxygen content of the model system was 2.98 after the calcination process. The electrical conductivity value reached 2 S cm-1 at 400 °C and increases to a maximum of 7.5 S cm-1 at 710 °C. The metallic element played to generating the conductive behavior at the low temperature, while the ionic structure acted as elevated temperature. So, mixed ionic and electric conductors (MIEC) were employed comprehensively for creating the conductive properties. Based on the structure and conductivity results, the SSBF composite has a good chance as an alternative cathode material with a perovskite single phase for future TI-SOFCs application

Development of Cobalt-free Oxide (Sm0.5Sr0.5Fe0.8Cr0.2O3-δ) Cathode for Intermediate-temperature Solid Oxide Fuel Cells (IT-SOFCs)

A cobalt-free perovskite oxide Sm0.5Sr0.5Fe0.8Cr0.2O3-δ (SSFC) has been exploited as a novel cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The cathode model was synthesized with the addition of the chromium element in the B side of the composite metallic oxide system, which was then formed by the solid-state reaction method. The model system was further characterized in detail for getting the properties behavior. The solid-state reaction of the SSFC system was observed through thermal gravimetric analysis. Meanwhile, the structural properties were investigated by x-ray diffraction, and the weight loss was examined by the thermal gravimetric analysis as well. Furthermore, the thermal expansion coefficient was determined by the thermal-mechanical analysis, and the conductivity properties were tested by the thermal conductivity analysis. The result showed that the SSFC cathode demonstrated the crystalline structure based on the design with a perovskite phase. The oxygen content created on the model structure was obtained to be 2.98 after the calcination process. The average thermal expansion coefficient was achieved up to 5.0×10-6 K-1 as the heating given up to 800 °С. Moreover, the conductivity value reached from 2 S∙cm-1 at 400 °С and it increased to be a maximum of 7.5 S∙cm-1 at 700 °С. In addition, the presence of Cr6+ cation valence coordinated with the oxygen anion could lead to generating a large concentration of oxygen vacancies on the cathode surface, facilitating the transport of the O2− anion in the cathode system. Based on these results, the SSFC cathode has good properties as a composite system promising for IT-SOFCs application in the futur