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All Journal Jurnal Sinergitas PkM & CSR Seminar Nasional Kota Berkelanjutan Jurnal Serambi Engineering Intervensi Komunitas: Jurnal Pengabdian Masyarakat ADI Pengabdian kepada Masyarakat Jurnal (ADIMAS Jurnal) Environmental Science and Engineering Conference Proceeding Serambi Engineering
Hernani Yulinawati
Universitas Trisakti
Religion Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences

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Journal : Serambi Engineering

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Maximum Hourly and Daily Concentration Patterns of Urban Jakarta Tropospheric Ozone Hernani Yulinawati; I Made Indradjaja M Brunner
Jurnal Serambi Engineering Vol. 9 No. 1 (2024): Januari 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Tropospheric ozone is formed through UV radiation from sunlight with NOx and VOC precursors. Continuous O3 measurement data were obtained from US Embassy in Central Jakarta from November 4 2022 to September 30, 2023. The data were analyzed and compared with Indonesian NAAQS for 1-hour and 8-hour. Based on NAAQS, 1-hour O3 concentration is measured between 11:00-14:00; The 8-hour concentration is the average of the 8 hours measurements between 06:00-18:00. Based on the analysis, maximum concentration tends to occur between 11:00-16:00. The 1-hour concentration increased in July-September 2023, while maximum of 103 μg /m3 was recorded on November 4, 2022 at 14:00-15:00. Based on the recorded data, the 8-hour concentration can be calculated as the average of 8 hours concentration between 06:00 to 21:00. The measurement between 10:00-18:00 shows higher average 8-hour ozone concentration compared to other ranges. Lowest value was obtained in between 06:00-14:00. With additional O3 concentration data is expected Jakarta air quality can be more understood. With fast application of Low-Cost Sensor (LCS) for PM2.5, LCS for O3 can be considered to support limited number of AQMS in Jakarta. More O3 measurements needed since this parameter is strongly influenced by local meteorological conditions, contributing NOx and VOC pollutants activities, as well wind movement pattern.
Analisis Emisi dari Pembakaran Bahan Bakar Gas dengan Pendekatan Perhitungan Stoikiometrik I Made Indradjaja M. Brunner; Hernani Yulinawati
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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This article explains the analysis of potential emissions from the combustion of gaseous fuels, namely natural gas, coke oven gas (COG) and blast furnace gas (BFG). Fossil gas fuels are widely used in industrial activities, particularly in the integrated iron and steel industry. Natural gas is generally derived from natural sources and contains mainly methane gas in addition to longer chain hydrocarbon gases and other non-hydrocarbon gas compounds. COG is a by-product of the production of coke from coal and generally contains hydrogen and methane gas. BFG is the flue gas from the process of smelting iron ore in a furnace and consists of a mixture of nitrogen, carbon monoxide, carbon dioxide and hydrogen gas. Theoretical analysis shows that for an energy level equivalent to natural gas, approximately 2.35 times more COG and 11.56 times more BFG are required than natural gas. COG emissions tend to be lower in CO2 but higher in NO2 and SO2 than natural gas emissions. CO2 and NO2 gas emissions from COG are lower than those from BFG. However, CO2 and NO2 gas emissions from BFG are much higher than those from natural gas.
Co-Authors Albert Marcello Anggie Trixy Aninda Dian Lestari Arini Prasetyani Astari Minarti Bambang Iswanto Bambang Iswanto Endro Suswantoro I Made Indradjaja Brunner I Made Indradjaja M Brunner I Made Indradjaja M. Brunner Jannes Siahaan Kris Pudyastuti Lailatus Siami Pramiati P Riatno Pramiati Purwaningrum, Pramiati Ramadhani Yanidar Ratih Nurruhliati Ridho Aji Wicaksono RL Pangaribowo Silia Yuslim Tazkiaturrizki Winarni Winarni Yolanda Thasya Jocelin