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Experimental study on the performance of Peltier TEC12706 as a cooling and heating media Sujono Sujono; Hernawan Novianto
Jurnal Polimesin Vol 22, No 6 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i6.5345

Abstract

The application of refrigeration spans a wide range of industries, from household needs to the oil and gas sector, employing various cooling methods. One rapidly developing approach is the use of Peltier devices, particularly the TEC1 12706 model, due to its compact size and widespread availability. It is essential for students to understand the application of Peltier technology, which necessitates the creation of practical tools for both educational and research purposes. Most existing research on Peltier devices focuses on air conditioning systems with fixed loads; therefore, it is imperative to explore their cooling and heating effects in dynamic environments. To address this gap, this study investigates the performance of Peltier modules as cooling and heating systems for moving media. A prototype of a cooling and heating module (heat pump) was developed using Peltier devices, and its performance was evaluated by varying the flow rates of hot and cold water (1.62/1.02; 1.2/0.8; and 0.9/0.68 L/min) and the number of operational Peltier elements (2, 4, 6). Calculations using the relevant formulas yielded the Coefficients of Performance (COP): COPc = 0.45, COPh = 1.37, and COPtot = 1.82. The results revealed that the cooling performance coefficient is lower than both the heating and total performance coefficients. Additionally, variations in flow rates and the number of installed Peltier devices showed minimal impact on cooling and heating performance coefficients.
Enhancing Safety Awareness through Oil and Gas Occupational Health Training for Students in Blora and Bojonegoro Susilo Handoko; Budi Sulistiyo Nugroho; Totok Widiyanto; Kasturi Kasturi; Ferro Aji; Sujono Sujono; Hernawan Noviyanto; Haris Numan Auli; Astrie Kusuma Dewi; Erdila Indriani
AJAD : Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 3 (2025): DECEMBER 2025
Publisher : Divisi Riset, Lembaga Mitra Solusi Teknologi Informasi (L-MSTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59431/ajad.v5i3.674

Abstract

Blora and Bojonegoro, as regions with intensive oil and gas activities, require strengthened community safety capacity, especially among students. This study evaluates the effectiveness of a community-based occupational health and safety training program using an experiential learning approach. The three-day program included interactive lectures, group discussions, and simulations involving fire extinguishers, fire blankets, sound level meters, and multi-gas detectors. Evaluation employed validated pre-tests and post-tests, along with a structured skills assessment rubric. Results indicate a 53.9% increase in safety knowledge, with 93% of participants demonstrating proper use of fire extinguishers and fire blankets. Qualitative findings show improved risk awareness and confidence. These results align with experiential learning theory and social learning theory, and are consistent with recent studies confirming the effectiveness of safety simulations. The study concludes that community-based occupational health and safety training effectively improves student safety competence in oil and gas regions and can be replicated in other high-risk sectors. Recommendations include periodic simulation-based training, creation of school and village safety volunteer teams, integration of occupational health and safety life skills into school curricula, and longitudinal evaluation of knowledge and behavior retention.