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PERHITUNGAN BEBAN PENDINGIN PADA GEDUNG TERMINAL 2 BANDAR UDARA INTERNASIONAL JUANDA Septian Dwi Nugroho; Suhariyanto; Hadi Kusnanto; Solikin
Rekayasa Sistem Energi dan Manufaktur (ReSEM) Vol 1 No 1 (2023): Journal Rekayasa Sistem Energi dan Manufaktur
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/resem.v1i1.20246

Abstract

Juanda International Airport is the number 2 busiest airport with a total of 4,316,508 service users in 2022 (BPS, 2022). The increase in the number of service users along with the easing of air travel requirements can cause frequent complaints from service users regarding the air temperature that is felt to be uncomfortable in the terminal area. Given the importance of the existence of a passenger departure terminal, the availability of facilities according to service standards is also a point that needs to be considered. The intended service standard includes departure and arrival facilities at a terminal which includes services for prospective passengers and passengers at the airport terminal. One of the facilities considered in the departure and arrival process is air conditioning (PM 178 2015) and ASHARAE. The author here performs calculations and analysis of cooling loads in the Terminal 2 Building on floors 1 and 2 covering 26 areas. After calculating, it was found that several areas of cooling load exceeded the capacity of the previous existing FCU with the following data: Arrival Immigration according to CLTD calculations of 1,183,444 BTU/h while FCU capacity is 684,019 BTU/h, POTS according to CLTD calculations is 346,197 BTU/h while FCU capacity is 150,000 BTU/h, SCP according to CLTD calculations is 343,338 BTU/h while FCU capacity is 355,650 BTU/h, RT Gate 1- 6 according to CLTD calculations is 1,687,433 BTU/h while FCU capacity is 1,439,550 BTU/h. Keywords: CLTD, ASHRAE, BTU/h.
ANALISA PERBANDINGAN EFEKTIVITAS PENDINGIN OLI HIDROLIK PADA MESIN FINE BLANKING PRESS 160T DENGAN MENGGUNAKN FAN RADIATOR DAN CHILLER Suhariyanto; Solikin; Muhammad Syahru Muharom
Rekayasa Sistem Energi dan Manufaktur (ReSEM) Vol 2 No 1 (2024): Journal Rekayasa Sistem Energi dan Manufaktur
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The difficulty of stabilizing the temperature in the engine hydraulic system. PT. XYZ still hasn't found the best way or option to stabilize the temperature of the two 160T fine blanking press machines that require good hydraulic oil cooling, so the company wants to find out which is better by installing radiator fan cooling on the 160T A fine blanking machine or installing chiller cooler on the 160T B fine blanking machine. With that, data processing is carried out to determine the effectiveness of the two, and based on the data collected the 160T fine blanking press machine using a radiator fan cooler is more effective than using a chiller cooler. Keywords : Fan Radiator,Chiller, Efektivitas, Oil Hydraulic.
GPS Navigation System on Autonomous Ship as An Effort to Increase Fish Catch for Fisherman in Pamekasan Indonesia Bambang Sampurno; Ilham Farhansyah Putra; Mashuri; Eddy Widiyono; Mahirul Mursid; Suhariyanto
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 4 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i4.5100

Abstract

Currently most of the marine fishing in Indonesia uses traditional boats with navigation systems using compasses and mobile phones. Besides being ineffective, this fishing system also has a high risk, so a safer fishing system is needed, namely using an autonomous boat with a system capable of attracting fish. The use of the Autonomous Surface Vehicle (ASV) for monitoring and fishing purposes has been carried out by Aryusmal (2018) [1] , namely using GPS equipped with an Arduino Uno microcontroller to carry out ship movements, and an error of 1.5 m was obtained. Whereas Permana (2018) [2] made an ASV ship with GPS equipped with an APM microcontroller and Arduino Uno, an error of 30 cm was obtained. Referring to the need for a safe fish system and the results of previous research, this paper designed an autonomous ship with a GPS navigation system using a pixhawk microcontroller which is supported by the use of a brushless motor as the main propulsion of the ship and mission planner software to determine navigation waypoints. This system is able to monitor in real time and save the results of navigation and compass movements up to the last waypoint on the Pixhawk microcontroller. To find out the performance of the ASV, waypoint latitude and longitude tests were carried out on a laboratory and field scale. Laboratory test results have an error of 1.7%, while the results of field testing error errors that occur are 4.4% at longitude and the smallest error is 1.3% at latitude. This error occurred due to field conditions due to sea water shocks. However, this error did not really affect the movement of the ASV ship, because the shift was not too far.
PREVENTIVE MAINTENANCE PADA SLAG HAULER DENGAN METODE REALIBILITY CENTERED MAINTENANCE (RCM) DAN FAILURE MODE AND EFFECT ANALYSIS (FMEA) Mirpan; Suhariyanto
Jurnal Rekayasa Sistem Energi & Manufaktur (ReSEM) Vol 4 No 1 (2026): Vol 4 No 1 (2026): Journal Rekayasa Sistem Energi dan Manufaktur
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/resem.v4i1.30521

Abstract

In the smelter industry, the reliability of heavy equipment such as slag haulers significantly impacts production continuity. Failure of this equipment can lead to high downtime and potentially significant losses. This study aims to improve the effectiveness of slag hauler maintenance by applying the Reliability-Centered Maintenance (RCM) and Failure Mode and Effect Analysis (FMEA) methods to the SH-001 unit.The study was conducted by collecting downtime data and component failure history from the maintenance team over a 3,600-hour operating period. RCM analysis was used to determine maintenance strategies based on function and failure consequences, while FMEA was used to identify failure modes and calculate the Risk Priority Number (RPN) as the basis for maintenance priorities. Reliability calculations were performed using an exponential distribution approach using the Mean Time To Failure (MTTF) and failure rate (λ) distribution.The results showed that the critical components causing downtime were the Fuel Injector Spring, Tensioner Bearing, and Cabin Cylinder O-Ring Seal, contributing more than 65% of the total downtime. The average reliability value for the SH-001 unit after 1,000 hours of operation was 66%. Based on the calculations, the optimal Preventive Maintenance (PM) interval for the Fuel Injector Spring was 1,819 hours, the Tensioner Bearing 1,271 hours, and the Cabin Cylinder O-Ring Seal 1,371 hours. The FMEA results showed the highest RPN values ​​for the Fuel Injector Spring (32), the Tensioner Bearing (24), and the cabin cylinder O-ring seal (16). The recommended RCM-based maintenance strategy covers three main categories: Scheduled Restoration Tasks for periodic replacement of major components, On-Condition Tasks for hydraulic system leak inspections, and Failure Finding Tasks for electrical component and protection system inspections. Implementing this strategy is expected to reduce downtime by up to 30%, increase equipment avalability above 90%, and reduce reactif maintenance costs by 20-25%. Keywords: Preventive Maintenance, Reliability Centered Maintenance (RCM), Failure Mode and Effect Analysis (FMEA), Reliability, Slag Hauler.