Abstract
HVAC system ( Heating Ventilating and Air Conditioning ) is a system that serves to organize temperatures and humidity the air on a room , that feels comfortable condition. In redesigned system HVAC to 8 floors office buildings , by using CLTD method ( cooling load temperature difference ), where the state of temperature design at 73,4 and 50% moisture. Existing cooling load 8.880.000 BTU/hr and air supply existing of 264.180 CFM. Redesigned calculation of cooling load is 11.626.701 BTU/hr ,where there is increased by 30.9 %, and obtained needs air supply of 343.456,73 CFM and increased by 30 %. Chiller system installation at the building using air cooled chiller , existing chiller using four chiller units of 250 tons refigerant each and one units for back up. Based of calculation obtained chiller capacity is 969 tons refrigerant, so that four units chiller available must in operates with 17 Air Handling Unit (AHU) to be optimum cooling,with dimension ducting 35 in the largest and smallest 9,5 in.
Highlights
Conditioning) adalah suatu sistem yang berfungsi untuk mengatur temperatur dan kelembaban udara pada suatu ruangan, agar kondisi temperatur dan kelembaban udara pada suatu ruangan tersebut menjadi nyaman
Existing cooling load 8.880.000 BTU/hr and air supply existing of 264.180 CFM
Redesigned calculation of cooling load is 11.626.701 BTU/hr,where there is increased by 30.9 %, and obtained needs air supply of 343.456,73 CFM and increased by 30 %
Summary
Conditioning) adalah suatu sistem yang berfungsi untuk mengatur temperatur dan kelembaban udara pada suatu ruangan, agar kondisi temperatur dan kelembaban udara pada suatu ruangan tersebut menjadi nyaman. PERANCANGAN ULANG SISTEM HVAC PADA GEDUNG PERKANTORAN X DI JAKARTA DENGAN METODE CLTD CLTD (Cooling Load Temperature difference), perancangan ulang ini dilakukan saat beban baru berfungsi yaitu pada bulan September 2015, waktu desain jam 13.00 WIB, agar pemilihan mesin HVAC dapat memenuhi beban perancangan sesuai standar kenyamanan (comfortable condition) yaitu 73,4oF dan 50 % RH. Peruangan, serta dimensi dinding partisi, dan lantai dapat dilihat pada tabel berikut: Tabel 1.
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