Electronic Theses and Dissertation

Peningkatan kebutuhan energi listrik mendorong pembangunan pembangkit listrik di
berbagai wilayah, termasuk daerah terpencil, melalui pemanfaatan Pembangkit Listrik
Tenaga Diesel (PLTD). Penelitian ini bertujuan mengevaluasi dampak operasional PLTD
(Pembangkit Listrik Tenaga Diesel) Lasikin yang dikelola oleh PLN ULP Sinabang terhadap
emisi ataupun terhadap kualitas udara di sekitarnya yang meliputi analisis radius pencemaran
udara, karakteristik emisi gas buang, serta perumusan strategi mitigasi terkait dampak
lingkungan di Desa Lasikin. Metode penelitian meliputi survei lapangan, identifikasi
langsung terkait emisi pada lima unit mesin genset sebagai sumber penghasil emisi pada
cerobong, pengukuran kualitas udara sekitar (ambien) pada beberapa titik reseptor, serta
pemodelan dispersi emisi menggunakan AERMOD. Hasil identifikasi telah menunjukkan
bahwa tinggi cerobong antara 5,25–9 m dengan diameter 0,20–0,37 m. Suhu gas buang
berada pada rentang 155,8–372,6 °C, laju alir gas buang 0,43–1,59 m³/detik, dan kecepatan
alir 13,9–15,5 m/detik. Konsentrasi emisi NO₂ tercatat sebesar 150–169 mg/Nm³, SO₂
sebesar 84,9–115 mg/Nm³, dan CO sebesar 98,4–114 mg/Nm. Konsentrasi udara ambien
CO (

Increased demand for electrical energy has driven the construction of power plants in various regions, including remote areas, primarily through the use of diesel power plants (PLTD). This study aims to evaluate the operational impact of the Lasikin Diesel Power Plant (PLTD) managed by PLN ULP Sinabang on emissions and air quality in the surrounding area, including analysis of the air pollution radius, exhaust gas emission characteristics, and the formulation of mitigation strategies related to environmental impacts in Lasikin Village. The research methods included field surveys, direct identification of emissions from five generator sets as sources of emissions in the chimney, measurement of ambient air quality at several receptor points, and emission dispersion modeling using AERMOD. The identification results have shown that the chimney height is between 5.25–9 m with a diameter of 0.20–0.37 m. The exhaust gas temperature ranges from 155.8 to 372.6 °C, the exhaust gas flow rate is 0.43 to 1.59 m³/second, and the flow velocity is 13.9 to 15.5 m/second. The recorded NO₂ emission concentrations are 150–169 mg/Nm³, SO₂ is 84.9– 115 mg/Nm³, and CO is 98.4–114 mg/Nm. Ambient air concentrations of CO (