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All Journal Union: Jurnal Ilmiah Pendidikan Matematika Journal of Industrial View Ekalaya: Jurnal Pengabdian Kepada Masyarakat Indonesia
Nur Hidayanti
Universitas Bina Bangsa
Humanities Control & Systems Engineering Decision Sciences, Operations Research & Management Education Industrial & Manufacturing Engineering Mathematics Other

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Optimasi Pemakaian Steam pada Proses Refinery CPO dengan Pendekatan TPM Focus Improvement Arif Budi Sulistyo; Hartadi Wijaya; Nur Hidayanti; Fikri Fadhilah
Journal of Industrial View Vol. 7 No. 2 (2025)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jiv.v7i2.16064

Abstract

PT. MNA is a partner in the palm oil processing industry and its derivatives, primarily aimed at producing cooking oil. The refinery process of Crude Palm Oil (CPO) is one of the production stages that requires high energy consumption, particularly in the form of steam. This study aims to identify the level of steam usage in the refinery process and to explore opportunities for optimization and energy savings. The methods used include the Kaizen approach and Total Productive Maintenance (TPM). Initial analysis showed that steam consumption at PT. MNA reached 204,000 kg per month, with the highest usage occurring in the steam drying SBE process (82.97%), followed by steam heating PHE (10.82%), and steam heating hot water (6.21%). Based on a Pareto analysis, the improvement focus was placed on the steam drying SBE process. The implementation of improvements through reducing process time from 850 seconds to 700 seconds proved effective without disrupting other processes. As a result, steam consumption was successfully reduced to 168,000 kg per month, while the oil content in SBE remained within the company’s target of 20–22%. Therefore, the TPM Focus Improvement and Kaizen approaches have been proven effective in optimizing steam usage in the CPO refinery process.    PT. MNA sebagai mitra bidang pengolahan minyak kelapa sawit dan turunannya untuk menghasilkan minyak goreng. Proses refinery Crude Palm Oil (CPO) merupakan salah satu tahapan produksi yang memerlukan konsumsi energi dalam jumlah besar, terutama dalam bentuk steam. Penelitian ini bertujuan untuk mengetahui tingkat penggunaan steam pada proses refinery serta mengidentifikasi peluang optimasi dan penghematan energi. Metode yang digunakan meliputi pendekatan Kaizen dan TPM (Total Productive Maintenance). Hasil analisis awal menunjukkan bahwa konsumsi steam di PT. MNA mencapai 204.000 kg per bulan, dengan penggunaan terbesar terdapat pada proses steam drying SBE sebesar 82,97%, disusul steam heating PHE sebesar 10,82% dan steam heating hotwater sebesar 6,21%. Berdasarkan analisis Pareto, fokus perbaikan difokuskan pada proses steam drying SBE. Implementasi perbaikan dengan pengurangan waktu proses dari 850 detik menjadi 700 detik terbukti efektif tanpa mengganggu proses lainnya. Hasilnya, konsumsi steam berhasil dikurangi menjadi 168.000 kg per bulan, serta kadar oil content pada SBE tetap berada dalam target perusahaan yaitu 20–22%. Dengan demikian, pendekatan TPM Focus Improvement dan Kaizen terbukti efektif dalam mengoptimalkan pemakaian steam pada proses refinery CPO.
PENINGKATAN PEMAHAMAN QRIS BAGI PELAKU UMKM MELALUI WEBINAR EDUKASI PEMBAYARAN DIGITAL DALAM MENDUKUNG TRANSFORMASI KEUANGAN Arif Budi Sulistyo; Rudiyanto Rudiyanto; Sev Rahmiyanti; Maman Suryaman; Hartadi Wijaya; Nur Hidayanti; Zaldy Suhatman; Dadang Romansyah; Dika Putri Meidiana; Duwi Cahyati
Ekalaya: Jurnal Pengabdian Kepada Masyarakat Indonesia Vol. 5 No. 2 (2026): Ekalaya Journal
Publisher : Nindikayla Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57254/eka.v5i2.163

Abstract

The development of the digital economy encourages MSME actors to adapt to various technological innovations, including the use of digital payment systems. However, the results of initial observations show that some MSME actors still have limited understanding of digital payments and the use of the Quick Response Indonesian Standard (QRIS), and still rely on cash transactions in their business activities. This Community Service (PkM) activity aims to increase participants' understanding of digital payment systems, introduce QRIS as a national standard for digital payments, provide an understanding of the benefits and security of QRIS, and encourage the use of digital transactions in supporting the financial transformation of MSMEs. The activity was carried out in the form of an online webinar organized by the Indonesian Institute of Accountants of the Banten Region with the theme "Getting to Know QRIS Closer: Fast, Modern, and Secure Digital Payment Strategies". The implementation method includes participant registration, material delivery, discussion and question and answer, and evaluation of activities. The participants of the activity totaled 33 people consisting of students, MSME actors, and the general public. The material presented included the evolution of payment systems, QRIS standardization, the advantages of QRIS, QRIS transaction mechanisms, types of QRIS, digital transaction security, QRIS and accounting transformation, as well as opportunities to utilize QRIS for MSMEs and the younger generation. The results of the activity showed that participants obtained information about the concept of QRIS, the benefits of digital payments, the security of digital transactions, the implementation of QRIS in business activities, and the use of QRIS in supporting the financial transformation of MSMEs. In addition, participants assessed that the material presented was relevant to current needs, easy to understand, and useful in supporting business management and adaptation to the development of the digital economy. This activity also resulted in a follow-up plan in the form of the dissemination of digital educational materials, assistance in the implementation of QRIS, monitoring the use of digital payments, and holding follow-up webinars. Thus, the webinar program has become an educational tool that supports the improvement of digital payment literacy and understanding of the use of QRIS in supporting the financial transformation of MSMEs in the digital economy era.
Development augmented reality in problem-based learning: Strengthening students' mathematical communication ability Fina Alfiyanti; Anton Nasrullah; Ratu Khoirotun Nisa; Aan Santika; Mira Marlina; Nur Hidayanti; Silvia Ratnasari
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 2 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i2.19106

Abstract

Mathematical communication ability is essential, especially in learning geometry to understand trigonometric comparisons. However, many students still face difficulties in communicating mathematical problem-solving processes. Augmented Reality (AR) visualizes 2D and 3D objects, helping solve problems and improving communication. This study aims to develop and evaluate the quality of teaching materials and worksheets (LKPD) assisted by AR on geometric comparison topics to enhance students' mathematical communication ability. The research uses the Plomp development model, which includes initial investigation, design, realization/construction, testing, evaluation, revision, and implementation phases. Validation involves five experts, consisting of two lecturers and three subject teachers, while the practicality test includes 33 high school students in Banten, Indonesia. The study results show that the teaching materials and LKPD achieve an average validity of 88.25% (very valid), practicality of 88.2% (very practical), and effectiveness based on student activity observation sheets of 85.6%. The students’ test results reach 86.6% (very effective). The mathematical communication test also indicates that 10 students are in the moderate category, and 23 students have high communication ability, with an N-Gain of 64.2% (quite effective). Based on these results, the teaching materials and AR-assisted LKPD are valid, practical, and effective, making them suitable for mathematics learning.
Co-Authors Aan Santika Anton Nasrullah, Anton Dadang Romansyah Dika Putri Meidiana Duwi Cahyati Fikri Fadhilah Fina Alfiyanti Hartadi Wijaya Maman Suryaman Mira Marlina Ratu Khoirotun Nisa Rudiyanto Rudiyanto Sev Rahmiyanti Silvia Ratnasari Zaldy Suhatman