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All Journal Metode : Jurnal Teknik Industri IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Mansyur, Syaiful
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Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Sistem Otomatisasi Pengendalian Kelembaban menggunakan Sensor DHT21 dan Modul Peredup Arus Bolak-Balik (AC Light Dimmer) Mansyur, Syaiful; Harahap, Akhirul April
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.339

Abstract

This study analyzes an environmental control system based on an AC Light Dimmer, integrating ADC values, AC voltage, and RPM for drying applications. The results reveal a strong linear relationship between ADC values and AC voltage, with blower RPM increasing proportionally to the voltage. The system successfully reduced humidity from 60% to 26.3% and increased temperatures from 35.6°C to 50.6°C automatically via DHT21 sensors. While the ADC performed well, potential saturation at high voltages requires careful design consideration. Overall, the microcontroller-based dynamic RPM control effectively optimizes drying processes with high precision and energy efficiency. This system is highly applicable to raw-material processing industries that require stable environmental control to minimize product damage and reduce power consumption.
Re-Design Alat Bantu Pengangkut Galon Air Untuk Ibu Rumah Tangga Berbasis Anthropometri Rusnita, Edit; Mansyur, Syaiful
Metode : Jurnal Teknik Industri Vol. 12 No. 1 (2026): Jurnal Metode
Publisher : Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/mt.v12i1.5444

Abstract

MMH activities are still commonly found in our daily activities, such as carrying water gallons. Water gallons are carried not only in offices but also in homes by housewives. Although there are now many commercially available tools to assist in carrying water gallons, the design of these tools still needs improvement. The results of the study show that MMH activities carried out by women, especially housewives, even when using trolley aids, still produce a RULA value of 11. This indicates that immediate improvements are needed in terms of posture when transporting water gallons. Based on this, immediate improvements are needed in the design of existing water gallon transport trolleys in order to reduce the incidence of musculoskeletal disorders (MSDs), especially in women. This study will redesign water gallon transport trolleys based on anthropometry, adjusted to the results of body posture assessments and complaints related to the previous trolley design. Body posture assessments use the RULA and REBA methods to determine the degree of likelihood of MSDs. The Nordic questionnaire will also be given to respondents to find out what complaints housewives have when transporting water gallons using the current water gallon transport trolley. Furthermore, the results of the RULA REBA worksheet and Nordic questionnaire will be used as a basis for redesigning the water transport trolley. The redesign resulted in a proposed design for a water gallon transport trolley that focuses on the anthropometry of housewives.
Co-Authors Harahap, Akhirul April Rusnita, Edit