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All Journal Jurnal Ilmiah Ilmu dan Teknologi Rekayasa
Yudi Wahyudin
Politeknik Negeri Bandung
Agriculture, Biological Sciences & Forestry Computer Science & IT

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Analisis Kapasitas Pendinginan Ruang Operasi Menggunakan Metode Perhitungan Mundur Berdasarkan Standar Air Changes Per Hour (ACH) pada Permenkes Nomor 40 Tahun 2022 Yudi Wahyudin; Susilawati Susilawati; Anita Septiani; Ade S Margana
Jurnal Ilmiah Ilmu dan Teknologi Rekayasa Vol 9 No 2 (2026): September 2026
Publisher : Politeknik Negeri Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31962/jiitr.v9i2.86

Abstract

Operating room air conditioning systems, in accordance with Minister of Health Regulation No. 40 of 2022, must use a standard of 25 Air Changes per Hour (ACH) to maintain sterility. This study evaluates whether this standard is sufficient to handle the cooling load. Through a case study on a standard operating room (120 m³), a comparative analysis was conducted between the maximum cooling capacity that can be provided by the 25 ACH airflow and the real heat load (from occupants, lighting, and 7.0 kW medical equipment). The results show that the maximum sensible heat absorption capacity of the room (13.2 kW) exceeds the estimated peak real heat load (8.66 kW). This resulted in a sensible thermal capacity surplus of 4.57 kW, while the room load utilized only 65% of the available capacity. In conclusion, the 25 ACH regulation provides a highly reliable thermal safety margin, ensuring that the cooling system capacity is fully capable of handling high heat load fluctuations from modern medical equipment
Co-Authors Ade S Margana Anita Septiani Susilawati