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Analisis Kualitas Udara PM2.5 dan PM10 pada Jalur Pejalan Kaki di Jalan Blora Kota DKI Jakarta Putri, Al Gabriella Setiawan; Susilawati; Premiera, Parisya; Yuliane, Aindri
Prosiding Industrial Research Workshop and National Seminar Vol. 16 No. 1 (2025): Vol. 16 No. 1 (2025): Prosiding 16th Industrial Research Workshop and National
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/irwns.v16i1.6674

Abstract

Kualitas udara yang buruk berdampak negatif bagi kesehatan, terutama bagi pejalan kaki yang langsung terpapar polusi. Penelitian ini menganalisis konsentrasi PM2.5 dan PM10 di kawasan pejalan kaki Jalan Blora, Jakarta, selama tujuh hari berturut turut di dua titik strategis. Pengukuran menggunakan alat HT-9600 dan dianalisis berdasarkan PP No. 22 Tahun 2021 serta Permen LHK No. P.14 Tahun 2020. Hasil menunjukkan hari Jumat memiliki konsentrasi tertinggi PM2.5 sebesar 24,6 μg/m³ dan PM10 sebesar 28,5 μg/m³, sementara hari Sabtu terendah bernilai 23,6 μg/m³ untuk PM2.5 dan 27,5 μg/m³ untuk PM10. Meskipun masih di bawah ambang batas, PM2.5 mencapai kategori sedang dengan nilai puncak 61,4 μg/m³, sedangkan PM10 tetap dalam kategori baik. Analisis korelasi Pearson menunjukkan hubungan positif antara jumlah orang dan konsentrasi partikel bernilai 0,784 untuk PM2.5 dan 0,786 untuk PM10, mengindikasikan bahwa aktivitas masyarakat berkontribusi terhadap peningkatan polusi udara di kawasan tersebut.
Liquid-Cooled Thermoelectric Modules: Potential for Efficient Water Harvesting Through Air Condensation Prasetyo, Bowo Yuli; Yuliane, Aindri; Rosulindo, Parisya Premiera; Wang, Fujen
Makara Journal of Technology Vol. 28, No. 3
Publisher : UI Scholars Hub

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Abstract

Water is one of the essential natural resources for the sustaining life of all beings on this planet. In general, groundwater is used to meet daily needs, although the availability of this water source becomes a major concern, particularly in some areas with limited access to it. Air condensation is a solution for providing water in such areas. This study aims to explore the potential of utilizing the thermoelectric technology as an alternative solution for water provision. An experiment is conducted using a system consisting of single liquid-cooled thermoelectric cooling devices/modules (TECs). Three types/variants of TECs with different cooling capacities are tested at three different operating voltages. During the tests, changes in physical quantities are recorded for analysis, along with amount of water produced. The results demonstrate notable performance differences between all TEC variants. The highest cooling capacity is achieved by the TEC-1 variant, albeit with higher current usage. The TEC-3 variant delivers the lowest performance of all. TEC-2 obtains the highest water yield, producing 46.9 g of water at 12 V, while TEC-1 and TEC-3 produce 34.4 and 13.2 g, respectively. The highest condensation rate, i.e., 3.72%, is achieved by TEC-2, at 9 V, while the lowest energy consumption, i.e., 3.74 kWh/L, is shown by TEC-2, at 12 V.