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Journal : Teknologika

Analisis Kinerja Induktor pada Main Pot untuk Proses Coating Fadhilah, Muhamad Dzaky; Anwar, Choirul; Rajab, Dede Ardi; Jatira; Suriaman, Irwan
Jurnal Teknologika Vol 15 No 2 (2025): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v15i2.537

Abstract

The metal coating process plays an important role in improving the corrosion resistance and service life of products. One of its main components is the main pot, a refractory container that holds aluminum, zinc, and silicon alloys at high temperatures. The temperature stability of the coating fluid is highly dependent on the performance of the inductor as the main heat source. The problem encountered is that the inductor's capacity is not yet optimal in maintaining the operating temperature, thereby affecting the efficiency of the process and the quality of the coating results. This study aims to analyze the inductor's ability to maintain the main pot temperature, identify factors that affect heating efficiency, and provide recommendations for improving system performance. The methods used include measuring the liquid temperature, recording electrical power, and observing the decrease in coating volume. The results show that four inductors with a total capacity of 1800 kVA only meet about 20–23% of the energy requirements. The fluid temperature can be maintained in the range of 602–608 °C, but tends to decrease over time. The coating volume decreased by an average of 8.05–11.61% during five hours of operation. Increased power capacity and a periodic refill strategy are needed to maintain temperature stability and coating efficiency.
Pengaruh Modifikasi Pipa Pendingin Terhadap Efektivitas Induced Draft Cooling Tower LBC-50 Naufal, Muhammad Fairuz; abdulah, amri; Heryadi, Yadi; Shieddieque, Apang Djafar; Rajab, Dede Ardi; Suhartini, Sri
Jurnal Teknologika Vol 15 No 2 (2025): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v15i2.540

Abstract

This study aims to analyze the performance enhancement of an induced draft cooling tower through modifications to the water distribution piping line, as well as to evaluate the thermal and hydraulic performance before and after modification. The initial system exhibited relatively low cooling effectiveness due to uneven water distribution and limited heat transfer between air and water within the tower. Therefore, the piping layout was redesigned to improve flow uniformity, enlarge the air–water contact area, and minimize heat losses, thereby enhancing overall cooling efficiency. The experimental tests were conducted under identical operating conditions with an inlet water temperature of 38 °C. The results showed that the outlet water temperature decreased from 33.78 °C (before modification) to 28.95 °C (after modification). The range increased from 5.17 °C to 9.12 °C, while the approach decreased from 4.68 °C to 2.61 °C, indicating a more effective cooling process approaching ideal conditions. Furthermore, the cooling capacity showed a substantial increase from 21,717.4 kW to 61,515.1 kW, signifying that the modified cooling tower can dissipate a greater amount of heat and support higher cooling demands in industrial operations. In addition, the system effectiveness improved from 52.45% to 77.58%, demonstrating a significant enhancement in heat transfer efficiency as a result of improved fluid distribution. On the other hand, the total head loss increased from 39.11 m to 63.71 m, indicating higher flow resistance due to the new configuration, but it remained within acceptable limits. Overall, the study concludes that modifying the piping line in the induced draft cooling tower significantly improves thermal performance, cooling effectiveness, and capacity, making the redesigned configuration a viable approach to increase the efficiency of large-scale industrial cooling systems..