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All Journal FLUIDA Jurnal Surya Teknika
Prayogo, Sapto
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Perancangan Ulang Komponen Condensate Booster Pump pada System Re-Injeksi di PLTP X Adityawarman, Dzaky Fauzan Hilmy; Melkias, Alvera Apridalianti; Prayogo, Sapto
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7288

Abstract

PLTP X is a power plant located in West Java, at this time PLTP X uses 2 condensate booster pumps that experience a discrepancy between the pump operation area specification and the actual condition. This problem causes vibration and decreased efficiency thus causing damage to the pump components. The purpose of this research itself is to design pump components in the form of impellers, shafts, pegs, & volutes. Another goal is to calculate the energy savings resulting from the design. This research has a quantitative and experimental nature. The data used is operational data of the PLTP X and other secondary data issued by the PLTP X. The required technical specifications are a head ±130 m, a capacity of 60 m3/h, a rotation of 2970 RPM & an efficiency > 60%. Based on the results of this study, it was obtained that the pump is a type of low discharge high pressure centrifuge, then the design of this pump has a head of 128.4 m, a capacity of 60 m3/h, an efficiency of 67% and has succeeded in saving energy of 107586.16 kWh per year at its point of operation.
Correlation of Steam Velocity and Pipe Diameter with Heat Transfer Performance on 120° Half-Pipe Jacket Widarti, Sri; Rahayu, Irma Galuh; Prayogo, Sapto
Fluida Vol. 16 No. sp1 (2023): FLUIDA x IRWNS Special Edition
Publisher : Department of Chemical Engineering, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v16isp1.5595

Abstract

Double jacket mixing tanks offer temperature control and versatility for industrial processes where temperature-sensitive materials need to be mixed, stored, or processed. The selection of the appropriate jacket type in a double-jacket mixing tank is based on the structural strength and the optimal heat transfer performance. The type of jackets can be conventional, dimple, and half-pipe. The conventional jacket is easier to manufacture, but it is not resistant to high temperature and pressure. The dimple jacket has good heat transfer, but it is susceptible to damage. The half-pipe jacket has good structural strength, but its heat transfer is affected by the central angle and pipe diameter. 120° central angle has greater heat transfer and pressure drop than 180° central angle. In order to determine the effects of steam velocity on heat transfer performance, heating time, and pressure drop of the 120° half-pipe jacket, research occurred on pipes with 2, 2.5, and 3 inches of diameter. The calculating method of heat transfer in agitated jacketed vessels is applied to visualize the relationships. The effects of steam velocity on heat transfer, heating duration, and pressure drop respectively are polynomials of order 2, power, and polynomials of order 2 with an average R2 close to 1. The greater R2, the better the relationship between two variables, according to the equation. The 120° half-pipe jacket performance will be highly effective, with 1774 W, 2.1 minutes heating duration, 8.94 kPa pressure drop if the steam velocity is 10.50 m/s with 2.5 inches pipe diameter.
Co-Authors Adityawarman, Dzaky Fauzan Hilmy Melkias, Alvera Apridalianti Rahayu, Irma Galuh Sri Widarti, Sri