Analisis Cost=Benefit Pada Retrofitting Bangunan Dengan Penerapan Insulasi Termal Dan Air Gap

Subekti, James Philip Rada (2025) Analisis Cost=Benefit Pada Retrofitting Bangunan Dengan Penerapan Insulasi Termal Dan Air Gap. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tingginya konsumsi energi pada bangunan komersial akibat penggunaan HVAC mendorong penelitian untuk menganalisis kelayakan teknis dan finansial dari retrofitting dengan insulasi termal di Tomoro Coffee Jombang. Melalui simulasi Computational Fluid Dynamics (CFD) yang telah divalidasi dengan data pengukuran lapangan, penelitian ini menginvestigasi pengaruh material insulasi fiberglass, sisal fiber, dan GEPS. Hasil menunjukkan konfigurasi optimal adalah insulasi fiberglass 6 cm dengan air gap 6 cm, yang berhasil mencapai standar kenyamanan termal ASHRAE 55-2023. Analisis Biaya-Manfaat membuktikan kelayakan finansial yang sangat tinggi dengan Payback Period hanya 1.41 tahun, NPV positif sebesar Rp150.328.741, dan BCR 5.067, yang didukung oleh penghematan listrik tahunan sebesar Rp12.706.974. Dengan demikian, disimpulkan bahwa retrofitting dengan insulasi fiberglass tidak hanya efektif meningkatkan kenyamanan termal tetapi juga merupakan investasi yang sangat menguntungkan dengan pengembalian modal yang cepat untuk bangunan komersial.
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High energy consumption in commercial buildings, primarily due to HVAC system usage, prompted research to analyze the technical and financial feasibility of retrofitting with thermal insulation at Tomoro Coffee Jombang. Through Computational Fluid Dynamics (CFD) simulations, validated with field measurement data, this study investigated the impact of fiberglass, sisal fiber, and GEPS insulation materials. Results show the optimal configuration is 6 cm fiberglass insulation with a 6 cm air gap, which successfully achieved ASHRAE 55-2023 thermal comfort standards. The Cost-Benefit Analysis proved very high financial viability with a Payback Period of just 1.41 years, a positive NPV of Rp150,328,741, and a BCR of 5.067, supported by annual electricity savings of Rp12,706,974. Thus, it's concluded that retrofitting with fiberglass insulation is not only effective in increasing thermal comfort but also a highly profitable investment with a quick return on capital for commercial buildings.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Cost-benefit Analysis, Efisiensi Energi, Insulasi Termal, Kenyamanan Termal, Retrofitting, Cost-benefit Analysis, Energy Efficiency, Retrofitting, Thermal Insulation, Thermal Insulation.
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD194.6 Environmental impact analysis T Technology > TH Building construction T Technology > TH Building construction > TH880 Sustainable buildings. Sustainable construction. Green building
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	James Philip Rada Subekti
Date Deposited:	30 Jul 2025 09:10
Last Modified:	30 Jul 2025 09:10
URI:	http://repository.its.ac.id/id/eprint/124520

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