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All Journal International Journal of Science, Engineering and Information Technology Research Horizon
SUHRA, AMINATUS
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Analysis of Occupational Safety and Health using The HAZOP Method on PT. ABC 3 Kg Lpg Gas Cylinder Maintenance Workshop Employees SUHRA, AMINATUS
International Journal of Science, Engineering, and Information Technology Vol 8, No 1 (2023): IJSEIT Volume 08 Issue 01 31 December 2023
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/ijseit.v8i1.23924

Abstract

Every company activity is inseparable from the risk of danger, therefore companies need to make efforts to minimize the consequences that could be detrimental. To minimize this, risk management activities are needed. In risk management, we must know what potential dangers may occur in the activity and the level of risk posed so that we can take appropriate preventive and control measures. Potential hazard analysis was carried out at the 3kg LPG gas cylinder maintenance workshop at PT. A B C. Due to the production process activities carried out by the workers, the workers still lack the self-awareness to wear personal protective equipment and there are less ergonomic working postures. Analysis using the HAZOP Worksheet method. The results of data processing show that sources of danger that can or have the potential to cause work accidents are worker attitudes, work environment conditions, falling materials, noise and sand particles. It is known that there are ergonomic risks in the work of the 3KG LPG gas cylinder maintenance workshop. The risks experienced include musculoskeletal disorders and fatigue that appears in the waist, arms, wrists, calves and ankles, as well as the neck. General steps that can be implemented to reduce potential hazards and risks are to require and emphasize all workers to use Personal Protective Equipment and provide workers with the tools they need, such as ergonomic tables and chairs. By implementing this, it can reduce work-related accidents
IoT and Solar Powered Storage System for Agricultural Product Quality Enhancement Suhra, Aminatus; Rohmayati, Nita Selvia; Junaidi, Imam; Sari, Cindy Yulia Kartika
Research Horizon Vol. 5 No. 5 (2025): Research Horizon - October 2025
Publisher : LifeSciFi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54518/rh.5.5.2025.815

Abstract

Postharvest losses remain a critical issue for corn farmers in Sumenep Regency, particularly in Lenteng Timur Village, where traditional storage methods fail to maintain product quality. This study aimed to design and develop an Internet of Things (IoT)-based agricultural storage system powered by renewable energy to enhance product quality, extend shelf life, and reduce farmer losses. The research employed a Research and Development (R&D) approach adapted from the Borg and Gall model, limited to six stages: problem identification, planning, prototype development, preliminary testing, revision, and main field testing. The system integrates DHT22 and MQ-135 sensors with an ESP32 microcontroller and a 200–300 Wp solar photovoltaic system. Field trials demonstrated that the IoT monitoring application provided real-time temperature, humidity, and gas concentration data with <2% deviation. The solar energy system generated 0.8–1.0 kWh/day, sufficient for continuous operation. Corn stored for 30 days in the IoT system exhibited 2.8% weight loss and 13–14% moisture content, compared to 7.4% weight loss and 16–18% moisture in traditional storage. User evaluation indicated high acceptance, with 90% of farmers reporting easier monitoring and 80% finding the system easy to use. These results suggest that integrating IoT and renewable energy in storage systems can effectively reduce postharvest losses, maintain crop quality, and promote sustainable agricultural practices. Further refinements are needed to enhance user-friendliness and backup energy capacity for broader implementation.
Co-Authors Junaidi, Imam Rohmayati, Nita Selvia Sari, Cindy Yulia Kartika