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All Journal International Journal of Advanced Technology in Mechanical, Mechatronics and Material (IJATEC) Jurnal Teknik Mesin Mechanical Xplore
Kamandanu, Ikhsan
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Automotive Engineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Technical Evaluation of Elevator Performance and Capacity Planning in High-Rise Apartment Towers: A Case Study in Jakarta Kamandanu, Ikhsan; Ruhyat, Nanang
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10413

Abstract

Elevator systems are critical for ensuring efficient vertical mobility, safety, and occupant comfort in high-rise residential buildings. This study presents a comprehensive performance evaluation of the elevator system in a three-tower apartment complex in Jakarta, Indonesia. The analysis integrates both qualitative and quantitative methods to assess key performance indicators, including peak load demand, round-trip time, handling capacity, recommended number of elevator units, waiting time, and estimated daily energy consumption. The peak load during the initial five-minute interval was found to range from 23 to 48 persons per tower. Elevator speeds were set at 180 m/min for Tower 1 and 150 m/min for Towers 2 and 3, resulting in round-trip time values between 183 and 208 seconds. The estimated handling capacities varied from 54 to 69 persons per elevator. To ensure optimal service performance and redundancy, four elevator units are recommended for Tower 1, and three units each for Towers 2 and 3. The projected daily energy consumption, based on a five-hour operational window, ranges from 80.51 to 96.61 kWh. The findings offer practical insights for designing energy-efficient and service-optimized elevator systems in high-density urban residential developments.
A Review of Fabrication Method of Casting Metal Matrix Composite Materials in Liquid State Kamandanu, Ikhsan; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 2 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i2.123

Abstract

This article reviews the fabrication methods of metal matrix composites (MMCs) in liquid state. Metal matrix composites, especially aluminium metal matrix composites (AMMCs), are widely used in automotive, aviation, and medical industries due to their superior properties such as low density, good wear resistance, and specific strength. Liquid-based manufacturing processes include infiltration, stir casting, centrifugal casting, squeeze casting, vacuum die-casting, compocasting, and rheocasting. Each method offers specific advantages in reinforcement distribution, cost efficiency, and complex shape manufacturability. Infiltration is effective in achieving good interfacial bonding; stir casting is popular because it is simple and economical for mass production; centrifugal casting excels in forming high-density and wear-resistant composites; squeeze casting and vacuum die casting increase the strength and density of composites; while compocasting and rheocasting offer more homogeneous microstructure and grain refinement. This review shows that the selection of method should be based on the specific application requirements and material characteristics to achieve optimum mechanical properties. With improvements in technology and control of process parameters, liquid casting methods offer significant potential for the manufacture of high-performance structural and functional components.
Co-Authors Hadi Pranoto Nanang Ruhyat