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All Journal PRIMA: Journal of Community Empowering and Services Prosiding SNTTM
Irawan, Suci Rahmadhani
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering

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Experimental study of green hydrogen production applied to gasoline engines with brake load capacity 0,25 kg/cm^2 Irawan, Suci Rahmadhani; Wicaksono, Ahmad Ilham; Martin, Awaludin
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/mq361b29

Abstract

Various countries are accelerating their energy transitions due to rising greenhouse gas emissions driving global climate change. The COP26 Conference set targets to limit global temperature rise to below 1.5 °C by 2030 and achieve net-zero emissions by 2050. Hydrogen is considered a promising alternative fuel because it produces only water vapor emissions and reduces dependence on fossil fuels. This study aims to analyze the effect of hydrogen gas, produced through electrolysis, mixed with Pertalite fuel on the performance of an internal combustion engine. The electrolysis process employed an Alkaline Electrolyzer Cell of the wet cell type, using a 30%wt NaOH electrolyte, a 12V power supply, and current variations of 40 A and 50 A. Engine performance parameters were evaluated under a brake load of 0.25 kg/cm². The results showed that at 40 A, the highest HHO gas production rate reached 0.9 Lpm, resulting in a 15.3% increase in effective shaft power, 5.7% thermal efficiency, 6.7% volumetric efficiency, 1.1% AFR, and a 29.06% reduction in BSEC. At 50 A, HHO gas production also reached 0.9 Lpm, with improvements of 18.3% in effective shaft power, 8.6% thermal efficiency, 10.8% volumetric efficiency, 2.84% AFR, and a 40.7% reduction in BSEC. These findings confirm that hydrogen blending enhances engine performance while supporting emission reduction.
Pengukuran Laju Sedimentasi dan Kualitas Air Kolam Patin Menggunakan Sedimen Trap di Kelurahan Rumbai Bukit Hasibuan, Saberina; Darfia, Novreta Ersyi; Mainil, Rahmat Iman; Budiman, Naufal Arif; Yanti, Ayu Mita Jami; Zulvani S, Aura; Zikri, M. Ibnu Sina; Mendy, Jacklin; Nasution, Saipul Anwar; Irawan, Suci Rahmadhani; Zuhrah, Sofia; Maharani, Nabila Putri; Atha, Erlangga Dwi
PRIMA: Journal of Community Empowering and Services Vol 9, No 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/prima.v9i2.95772

Abstract

Measurement of Sedimentation Rate and Water Quality in Catfish Ponds Using Sediment Trap in Rumbai Bukit Subdistrict. Rumbai Bukit in Pekanbaru City, Riau Province, has aquaculture potential supported by the fish farming group mina usaha, which cultivates catfish (Pangasianodon hypophthalmus) in earthen ponds. The aim of this community service activity was to monitor the quality of catfish ponds using sediment traps, carried out in collaboration with Student Community Service from the University of Riau over a period of 40 days. This activity involved local fish farmers in Rumbai Bukit. Ten students provided assistance to improve pond productivity by monitoring pondquality through measurements of sedimentation rate, temperature, Total Dissolved Solids (TDS), and pH. Following the measurements, training was conducted and followed by continuous monitoring of water quality and fish growth. The analysis of water quality in relation to fish growth resulted in a graph showing the relationship between feed application and physical water parameters. The sedimentation rate in pond one was relatively high, averaging 71.85 ml/L, compared to 16 ml/L in pond two. The temperature in pond one ranged from 32°C to 35°C, while in pond two it ranged from 31°C to 34°C. TDS levels in pond one were relatively high, ranging from 112 to 194 ppm, compared to 9 to 24 ppm in pond two. The pH in pond one ranged from 6.9 to 7.5, while in pond two it ranged from 6.3 to 7.1. This community service activity was well received, with around 70% of fish farmers enthusiastically participating. The use of sediment traps was effective in monitoring sediment accumulation in catfish ponds. Ponds with poor management showed thicker sediment layers and a decline in water quality. Regular monitoring and efficient feed management are recommended to maintain optimal water quality and fish health. This activity has made a tangible contribution by increasing fish farmers' awareness and capacity regarding the importance of regular water quality monitoring, and by encouraging the adoption of more sustainable aquaculture practices to support local food security and the environmental sustainability of aquaculture in the Rumbai Bukit area.
Co-Authors Atha, Erlangga Dwi Awaludin Martin Budiman, Naufal Arif Maharani, Nabila Putri Mendy, Jacklin Nasution, Saipul Anwar Novreta Ersyi Darfia Rahmat Iman Mainil Saberina Hasibuan Sofia Zuhrah Wicaksono, Ahmad Ilham Yanti, Ayu Mita Jami Zikri, M. Ibnu Sina Zulvani S, Aura