Putri, Aura Aprodyta Raina (2026) Rancang Bangun Smart and Portable Measuring Instrument Multi-Sensor Pengukur Kadar dan Potensi Energi Gas Hidrogen. Undergraduate thesis, Politeknik Negeri Jember.
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Abstract
This research aims to design and build a microcontroller-based multi-sensor measurement instrument to determine the purity and energy potential of hydrogen gas in real-time. The system integrates MQ-8 (H₂), MQ-135 (CO₂), DS18B20 (temperature), and HX710B (pressure) sensors controlled by Arduino Uno. The test results show the system operates at a temperature of 29.75–34.75°C and a stable pressure of around 104.92 kPa. The hydrogen concentration is detected in the range of 12–40 ppm (0.000012–0.000040%), producing a hydrogen mass of 0.00104–0.00333 g and an energy potential of 150.19–399.85 J based on the low calorific value (LHV) 120 MJ/Kg. The concentration of CO₂ as an impurity gas is in the range of 335–1108 ppm. Test variations showed that the 0.2 M condition without a magnet resulted in the highest H₂ concentration (±24 ppm), while the use of a magnet at high concentrations reduced H₂ to ±8–10 ppm and increased CO₂ to nearly 300 ppm in dynamic testing. Overall, the system was capable of performing real-time measurements with stable and consistent data, although further calibration is still required to improve accuracy
| Item Type: | Thesis (Undergraduate) | ||||||
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| Uncontrolled Keywords: | gas hidrogen, instrumen pengukuran portabel, kadar hidrogen, potensi energi, sistem multi-sensor | ||||||
| Subjects: | 100 - Rumpun Matematika dan Ilmu Pengetahuan Alam (MIPA) > 110 - Ilmu IPA > 111 - Fisika 100 - Rumpun Matematika dan Ilmu Pengetahuan Alam (MIPA) > 110 - Ilmu IPA > 112 - Kimia 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 443 - Teknik Enerji 410 - Rumpun Ilmu Teknik > 450 - Teknik Elektro dan Informatika > 455 - Teknik Kendali (atau Instrumentasi dan Kontrol) |
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| Divisions: | Jurusan Teknik > Prodi D4 Teknik Energi Terbarukan > PKL | ||||||
| Depositing User: | Aura Aprodyta Raina Putri | ||||||
| Date Deposited: | 14 Apr 2026 03:40 | ||||||
| Last Modified: | 15 Apr 2026 00:55 | ||||||
| URI: | https://sipora.polije.ac.id/id/eprint/55481 |
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