Kajian numerik distribusi udara pada ruang ber-AC untuk mencapai tingkat efisisensi energi yang optimal

Jackobus Ade Prasetya  Seputra

doi:10.30822/arteks.v3i1.53

Penulis

Jackobus Ade Prasetya Seputra Universitas Atma Jaya Yogyakarta

DOI:

https://doi.org/10.30822/arteks.v3i1.53

Kata Kunci:

efisien energy, pengkondisian udara, pola distribusi udara

Abstrak

Penggunaan energi listrik bangunan rumah tangga di Indonesia didominasi oleh kebutuhan AC. Salah satu upaya untuk mengoptimalkan kinerja AC adalah dengan memperhatikan distribusi aliran udaranya. Di pasaran terdapat tiga tipe distribusi udara AC, yaitu (1) perfect mixing, (2) displacement, dan (3) radiant cooling. Penelitian menguji pengaruh tipe-tipe distribusi AC tersebut terhadap konsumsi energi pendinginan dengan metode studi literatur, perhitungan matematis, dan simulasi numerik. Kriteria kenyamanan termal bersumber dari SNI 03-6572-2001 dengan suhu udara 24^oC sebagai titik tuju (setpoint) dari kondisi mula 28,1^oC. Sedangkan perhitungan tingkat konsumsi energi didapatkan dari lamanya waktu mencapai setpoint. Waktu pendinginan tercepat dicapai oleh displacement, yaitu 80 detik, lalu perfect mixing dalam 112 detik, dan yang terlama adalah radiant cooling, 460 detik. Perhitungan matematis dilakukan dengan tiga skenario beban kalor yang diasumsikan menjadi lamanya waktu AC saat jeda (idle), yaitu; (a) beban besar, 30 detik, (b) beban sedang, 60 detik, dan (c) beban kecil, 90 detik. Dengan waktu operasional 300 jam per bulan, konsumsi energi displacement sesuai skenario adalah; (a) 148,4 kWh/bulan, (b) 116,6 kWh/bulan, dan (c) 96 kWh/bulan, perfect mixing; (a) 160,9 kWh/bulan, (b) 132,8 kWh/bulan, dan (c) 113,1 kWh/bulan, dan radiant cooling; (a) 191,5 kWh/bulan, (b) 180,5 kWh/bulan, dan (c) 170,6 kWh/bulan.

Unduhan

Data unduhan tidak tersedia.

Biografi Penulis

Jackobus Ade Prasetya Seputra, Universitas Atma Jaya Yogyakarta

Program Studi Arsitektur, Fakultas Teknik, Universitas Atma Jaya Yogyakarta

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