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All Journal Jurnal Agroteknos Taman Cendekia : Jurnal Pendidikan Ke-SD-an INOVTEK POLBENG Dinasti International Journal of Management Science Journal of Educational Sciences Tsaqofah: Jurnal Penelitian Guru Indonesia YASIN: Jurnal Pendidikan dan Sosial Budaya ANWARUL: Jurnal Pendidikan dan Dakwah Jurnal Manajemen Sistem Informasi Jurnal Polimesin TANJAK : Jurnal Pengabdian Kepada Masyarakat
Irwan Kurniawan
Indonesian Center for Earthquake Engineering
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Distributed temperature sensing and fault-tolerant logging for PVC-based smoke condensers using dual-channel type-K sensors Setyawan, Reinaldi Teguh; Umira, Siti; Kurniawan, Irwan; Gunawan, Gunawan; Muthoriq, Ery
Jurnal Polimesin Vol 23, No 4 (2025): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i4.7386

Abstract

The condensation process of smoke in charcoal-burning systems generates high temperatures that pose a critical thermal risk to PVC piping, which has a melting point of 85 °C. This study presents the design and implementation of a distributed temperature sensing system using dual-channel Type-K thermocouples controlled by an Arduino Uno microcontroller. The system is equipped with fault-tolerant logging and real-time monitoring features, utilizing the MAX6675 thermocouple amplifier module for digital signal acquisition. Two sensors are strategically placed along the smoke conduit to capture temperature differentials between primary and secondary zones. Experimental testing was conducted over six consecutive days with data acquisition sessions at noon and midnight. The highest recorded temperature from the primary sensor reached 83.75 °C, while the secondary sensor recorded significantly lower values, indicating a thermal gradient of 23.8 °C between inlet and outlet. Comparative calibration using an umbrella-type analog thermometer revealed a minimal deviation of 0.41 °C, confirming the system’s accuracy. Two sets of error profiling showed variations in measurement consistency, with average error rates of 13.79% and 5.93% across a 30 °C–80 °C reference range. Voltage stability was maintained throughout all test scenarios, with a constant 5 V input and 4.4 V output. The system successfully demonstrated its ability to perform dual-point thermal detection with resilient performance under fluctuating combustion conditions. This sensor-integrated platform is well-suited for thermal protection and early intervention in biomass-based liquid smoke condensation systems, particularly in small-scale applications using low-melting-point materials such as PVC.
The Influence of the Project Citizen Model on Elementary School Students' Critical Thinking Skills Kurniawan, Irwan; Cathrin, Shely
Journal of Educational Sciences Vol. 10 No. 1 (2026): Journal of Educational Sciences
Publisher : FKIP - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.10.1.p.432-443

Abstract

This study aims to analyze the influence of the Project Citizen model on the critical thinking skills of elementary school students. The main problem in learning Civic Education in elementary schools is the low critical thinking skills of students due to the dominance of conventional approaches that focus on one-way learning. This study uses a quantitative approach with a quasi-experimental design, involving two groups: an experimental class that applies the Project Citizen model and a control class that uses conventional learning. The research instrument is a test. The results of the analysis show that the average pre-test score of 50.48 increased to 74.04 in the post-test after the implementation of Project Citizen. The independent t-test showed a significance value of 0.019 <0.05, which means there is a significant influence between the implementation of the Project Citizen model on improving students' critical thinking skills. In addition, the implementation of this model also increases participation and effective communication between students. Thus, Project Citizen is proven to be effective in developing the critical thinking skills of elementary school students, and is relevant to be applied in Pancasila Education learning that emphasizes the formation of democratic and reflective characters.
Co-Authors Azzami, Abdulloh Daito, Apollo Ery Muthoriq, Ery Firlyansyah, Hilda Fitriah, Hasanah Gunawan Gunawan Hairullah Hairullah, Hairullah Hakim, Apriman Imran Imran Istiqomah , Lailatul Jayanti, Tarisa Magdalena, Ina Martianis, Erwen Mujoko, Bejo Murdani Murdani, Murdani Pratiwi, Annisa Dwi Rahmayani, Lusy Nur Reinaldi Teguh Setyawan Setiawan Assegaf Shely Cathrin Tajul Arifin Umira, Siti Yuliyani, Tika Yusuf, Dewi Nurhayati