Uji Kinerja Dan Analisis Kebutuhan Energi Mesin Roasting Tipe Drum Berbasis Pemanas PTC (Positive Temperature Coefficient) Terintegrasi Sistem Panel Surya

Putra, Fajar Maulana Eka (2025) Uji Kinerja Dan Analisis Kebutuhan Energi Mesin Roasting Tipe Drum Berbasis Pemanas PTC (Positive Temperature Coefficient) Terintegrasi Sistem Panel Surya. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tujuan tugas akhir ini adalah menguji kinerja termal mesin roasting berbasis PTC dan menganalisis kebutuhan energinya saat diintegrasikan dengan panel surya. Parameter uji kinerja meliputi respon temperatur, stabilitas temperatur, dan kapasitas optimal drum, sedangkan analisis energi mencakup kebutuhan energi siklus, efisiensi, kemampuan produksi energi harian panel surya, serta implikasi ekonominya. Hasil uji kinerja menunjukkan konfigurasi pemanasan sebagian mencapai 120°C dalam 47 menit, sedangkan pemanasan penuh mencapai 167°C dalam 25 menit. Pada aspek stabilitas, pemanasan sebagian mencapai temperatur tunak 130,14°C dengan fluktuasi 0,10°C, sementara pemanasan penuh stabil pada 196,0°C dengan fluktuasi 1,50°C. Uji kapasitas menunjukkan fill factor 10% menurunkan kadar air sebesar 3%, fill factor 20% sebesar 1%, dan fill factor 30% sebesar 0,5%, dimana pada 30%, kondisi motor berhenti atau tersendat. Berdasarkan uji kinerja, kebutuhan energi mesin roasting sebesar 153,94 Wh untuk melakukan proses pre-heating dan operasi dengan efisiensi sistem 23,66%. Sistem panel surya mampu menghasilkan 2330 Wh per hari yang setara dengan sekitar 15 siklus operasi atau 5 jam per hari. Dari sisi ekonomi, biaya energi sistem panel surya didapatkan representasikan oleh LCOE sebesar 1.234,59 Rp/kWh, dibandingkan gas konvensional 2.538 Rp/kWh hingga 3.640 Rp/kWh, dan tarif rumah tangga non-subsidi 1.444,7 Rp/kWh. Sehingga disimpulkan secara kinerja, mesin roasting mampu mencapai kategori temperatur roasting dengan stabilitas menunjukkan adanya peningkatan temperatur steady terhadap setpoint dan kapasitas maksimal adalah < 30%. Berdasarkan analisis kebutuhan energi, panel surya mampu mencukupi kebutuhan mesin roasting dengan keunggulan ekonomis yang lebih baik dibandingkan sumber energi lainnya.
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The objective of this study is to evaluate the thermal performance of a PTC-based roasting machine and to analyze its energy requirements when integrated with a solar photovoltaic (PV) system. The evaluation includes temperature response, stability, drum capacity, cycle energy consumption, PV energy production, and economic feasibility. The results show that the single-heater configuration reaches 120 °C in 47 minutes, while the dual-heater configuration reaches 167 °C in 25 minutes. Stable temperatures of 130.14 °C and 196.0 °C are achieved for the single- and dual-heater systems, respectively. Capacity testing indicates that a 10% fill factor reduces moisture content by 3% and a 20% fill factor by 1%, whereas a 30% fill factor results in only a 0.5% reduction and causes motor stalling. These results indicate that effective operation is achieved at fill factors up to 20%. The roasting process requires 153.94 Wh per cycle, including pre-heating and operation, with an overall system efficiency of 23.66%. The solar PV system produces approximately 2,330 Wh per day, equivalent to about 15 roasting cycles or 5 hours of operation. From an economic perspective, the levelized cost of energy (LCOE) of the solar PV system is 1,234.59 IDR/kWh, which is lower than conventional gas energy costs (2,538–3,640 IDR/kWh) and non-subsidized grid electricity tariffs (1,444.7 IDR/kWh). Overall, the results confirm that the roasting machine achieves adequate thermal performance and that the solar PV system can meet the energy demand with superior economic performance compared to conventional energy sources.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Mesin Roasting, PLTS, PTC, Uji Kinerja, Performance Testing, PTC, Roasting Machine, Solar Power Plant
Subjects:	Q Science > QC Physics > QC100.5 Measuring instruments (General) Q Science > QC Physics > QC271.8.C3 Calibration T Technology > T Technology (General)
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Fajar Maulana Eka Putra
Date Deposited:	29 Jan 2026 09:54
Last Modified:	29 Jan 2026 09:54
URI:	http://repository.its.ac.id/id/eprint/131161

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